dwww Home | Manual pages | Find package

NM-SETTINGS-NMCLI(5)             Configuration            NM-SETTINGS-NMCLI(5)

NAME
       nm-settings-nmcli - Description of settings and properties of
       NetworkManager connection profiles for nmcli

DESCRIPTION
       NetworkManager is based on a concept of connection profiles, sometimes
       referred to as connections only. These connection profiles contain a
       network configuration. When NetworkManager activates a connection
       profile on a network device the configuration will be applied and an
       active network connection will be established. Users are free to create
       as many connection profiles as they see fit. Thus they are flexible in
       having various network configurations for different networking needs.

       NetworkManager provides an API for configuring connection profiles, for
       activating them to configure the network, and inspecting the current
       network configuration. The command line tool nmcli is a client
       application to NetworkManager that uses this API. See nmcli(1) for
       details.

       With commands like nmcli connection add, nmcli connection modify and
       nmcli connection show, connection profiles can be created, modified and
       inspected. A profile consists of properties. On D-Bus this follows the
       format as described by nm-settings-dbus(5), while this manual page
       describes the settings format how they are expected by nmcli.

       The settings and properties shown in tables below list all available
       connection configuration options. However, note that not all settings
       are applicable to all connection types.  nmcli connection editor has
       also a built-in describe command that can display description of
       particular settings and properties of this page.

       The setting and property can be abbreviated provided they are unique.
       The list below also shows aliases that can be used unqualified instead
       of the full name. For example connection.interface-name and ifname
       refer to the same property.

   connection setting
       General Connection Profile Settings.

       Properties:

       auth-retries
           The number of retries for the authentication. Zero means to try
           indefinitely; -1 means to use a global default. If the global
           default is not set, the authentication retries for 3 times before
           failing the connection.

           Currently, this only applies to 802-1x authentication.

           Format: int32

       autoconnect
           Alias: autoconnect

           Whether or not the connection should be automatically connected by
           NetworkManager when the resources for the connection are available.
           TRUE to automatically activate the connection, FALSE to require
           manual intervention to activate the connection.

           Autoconnect happens when the circumstances are suitable. That means
           for example that the device is currently managed and not active.
           Autoconnect thus never replaces or competes with an already active
           profile.

           Note that autoconnect is not implemented for VPN profiles. See
           "secondaries" as an alternative to automatically connect VPN
           profiles.

           If multiple profiles are ready to autoconnect on the same device,
           the one with the better "connection.autoconnect-priority" is
           chosen. If the priorities are equal, then the most recently
           connected profile is activated. If the profiles were not connected
           earlier or their "connection.timestamp" is identical, the choice is
           undefined.

           Depending on "connection.multi-connect", a profile can
           (auto)connect only once at a time or multiple times.

           Format: boolean

       autoconnect-priority
           The autoconnect priority in range -999 to 999. If the connection is
           set to autoconnect, connections with higher priority will be
           preferred. The higher number means higher priority. Defaults to 0.
           Note that this property only matters if there are more than one
           candidate profile to select for autoconnect. In case of equal
           priority, the profile used most recently is chosen.

           Format: int32

       autoconnect-retries
           The number of times a connection should be tried when
           autoactivating before giving up. Zero means forever, -1 means the
           global default (4 times if not overridden). Setting this to 1 means
           to try activation only once before blocking autoconnect. Note that
           after a timeout, NetworkManager will try to autoconnect again.

           Format: int32

       autoconnect-slaves
           Whether or not slaves of this connection should be automatically
           brought up when NetworkManager activates this connection. This only
           has a real effect for master connections. The properties
           "autoconnect", "autoconnect-priority" and "autoconnect-retries" are
           unrelated to this setting. The permitted values are: 0: leave slave
           connections untouched, 1: activate all the slave connections with
           this connection, -1: default. If -1 (default) is set, global
           connection.autoconnect-slaves is read to determine the real value.
           If it is default as well, this fallbacks to 0.

           Format: NMSettingConnectionAutoconnectSlaves (int32)

       dns-over-tls
           Whether DNSOverTls (dns-over-tls) is enabled for the connection.
           DNSOverTls is a technology which uses TLS to encrypt dns traffic.

           The permitted values are: "yes" (2) use DNSOverTls and disabled
           fallback, "opportunistic" (1) use DNSOverTls but allow fallback to
           unencrypted resolution, "no" (0) don't ever use DNSOverTls. If
           unspecified "default" depends on the plugin used. Systemd-resolved
           uses global setting.

           This feature requires a plugin which supports DNSOverTls.
           Otherwise, the setting has no effect. One such plugin is
           dns-systemd-resolved.

           Format: int32

       gateway-ping-timeout
           If greater than zero, delay success of IP addressing until either
           the timeout is reached, or an IP gateway replies to a ping.

           Format: uint32

       id
           Alias: con-name

           A human readable unique identifier for the connection, like "Work
           Wi-Fi" or "T-Mobile 3G".

           Format: string

       interface-name
           Alias: ifname

           The name of the network interface this connection is bound to. If
           not set, then the connection can be attached to any interface of
           the appropriate type (subject to restrictions imposed by other
           settings).

           For software devices this specifies the name of the created device.

           For connection types where interface names cannot easily be made
           persistent (e.g. mobile broadband or USB Ethernet), this property
           should not be used. Setting this property restricts the interfaces
           a connection can be used with, and if interface names change or are
           reordered the connection may be applied to the wrong interface.

           Format: string

       lldp
           Whether LLDP is enabled for the connection.

           Format: int32

       llmnr
           Whether Link-Local Multicast Name Resolution (LLMNR) is enabled for
           the connection. LLMNR is a protocol based on the Domain Name System
           (DNS) packet format that allows both IPv4 and IPv6 hosts to perform
           name resolution for hosts on the same local link.

           The permitted values are: "yes" (2) register hostname and resolving
           for the connection, "no" (0) disable LLMNR for the interface,
           "resolve" (1) do not register hostname but allow resolving of LLMNR
           host names If unspecified, "default" ultimately depends on the DNS
           plugin (which for systemd-resolved currently means "yes").

           This feature requires a plugin which supports LLMNR. Otherwise, the
           setting has no effect. One such plugin is dns-systemd-resolved.

           Format: int32

       master
           Alias: master

           Interface name of the master device or UUID of the master
           connection.

           Format: string

       mdns
           Whether mDNS is enabled for the connection.

           The permitted values are: "yes" (2) register hostname and resolving
           for the connection, "no" (0) disable mDNS for the interface,
           "resolve" (1) do not register hostname but allow resolving of mDNS
           host names and "default" (-1) to allow lookup of a global default
           in NetworkManager.conf. If unspecified, "default" ultimately
           depends on the DNS plugin (which for systemd-resolved currently
           means "no").

           This feature requires a plugin which supports mDNS. Otherwise, the
           setting has no effect. One such plugin is dns-systemd-resolved.

           Format: int32

       metered
           Whether the connection is metered.

           When updating this property on a currently activated connection,
           the change takes effect immediately.

           Format: NMMetered (int32)

       mptcp-flags
           Whether to configure MPTCP endpoints and the address flags. If
           MPTCP is enabled in NetworkManager, it will configure the addresses
           of the interface as MPTCP endpoints. Note that IPv4 loopback
           addresses (127.0.0.0/8), IPv4 link local addresses
           (169.254.0.0/16), the IPv6 loopback address (::1), IPv6 link local
           addresses (fe80::/10), IPv6 unique local addresses (ULA, fc00::/7)
           and IPv6 privacy extension addresses (rfc3041, ipv6.ip6-privacy)
           will be excluded from being configured as endpoints.

           If "disabled" (0x1), MPTCP handling for the interface is disabled
           and no endpoints are registered.

           The "enabled" (0x2) flag means that MPTCP handling is enabled. This
           flag can also be implied from the presence of other flags.

           Even when enabled, MPTCP handling will by default still be disabled
           unless "/proc/sys/net/mptcp/enabled" sysctl is on. NetworkManager
           does not change the sysctl and this is up to the administrator or
           distribution. To configure endpoints even if the sysctl is
           disabled, "also-without-sysctl" (0x4) flag can be used. In that
           case, NetworkManager doesn't look at the sysctl and configures
           endpoints regardless.

           Even when enabled, NetworkManager will only configure MPTCP
           endpoints for a certain address family, if there is a unicast
           default route (0.0.0.0/0 or ::/0) in the main routing table. The
           flag "also-without-default-route" (0x8) can override that.

           When MPTCP handling is enabled then endpoints are configured with
           the specified address flags "signal" (0x10), "subflow" (0x20),
           "backup" (0x40), "fullmesh" (0x80). See ip-mptcp(8) manual for
           additional information about the flags.

           If the flags are zero (0x0), the global connection default from
           NetworkManager.conf is honored. If still unspecified, the fallback
           is "enabled,subflow". Note that this means that MPTCP is by default
           done depending on the "/proc/sys/net/mptcp/enabled" sysctl.

           NetworkManager does not change the MPTCP limits nor enable MPTCP
           via "/proc/sys/net/mptcp/enabled". That is a host configuration
           which the admin can change via sysctl and ip-mptcp.

           Strict reverse path filtering (rp_filter) breaks many MPTCP use
           cases, so when MPTCP handling for IPv4 addresses on the interface
           is enabled, NetworkManager would loosen the strict reverse path
           filtering (1) to the loose setting (2).

           Format: uint32

       mud-url
           If configured, set to a Manufacturer Usage Description (MUD) URL
           that points to manufacturer-recommended network policies for IoT
           devices. It is transmitted as a DHCPv4 or DHCPv6 option. The value
           must be a valid URL starting with "https://".

           The special value "none" is allowed to indicate that no MUD URL is
           used.

           If the per-profile value is unspecified (the default), a global
           connection default gets consulted. If still unspecified, the
           ultimate default is "none".

           Format: string

       multi-connect
           Specifies whether the profile can be active multiple times at a
           particular moment. The value is of type NMConnectionMultiConnect.

           Format: int32

       permissions
           An array of strings defining what access a given user has to this
           connection. If this is NULL or empty, all users are allowed to
           access this connection; otherwise users are allowed if and only if
           they are in this list. When this is not empty, the connection can
           be active only when one of the specified users is logged into an
           active session. Each entry is of the form "[type]:[id]:[reserved]";
           for example, "user:dcbw:blah".

           At this time only the "user" [type] is allowed. Any other values
           are ignored and reserved for future use. [id] is the username that
           this permission refers to, which may not contain the ":" character.
           Any [reserved] information present must be ignored and is reserved
           for future use. All of [type], [id], and [reserved] must be valid
           UTF-8.

           Format: array of string

       read-only
           FALSE if the connection can be modified using the provided settings
           service's D-Bus interface with the right privileges, or TRUE if the
           connection is read-only and cannot be modified.

           Format: boolean

       secondaries
           List of connection UUIDs that should be activated when the base
           connection itself is activated. Currently, only VPN connections are
           supported.

           Format: array of string

       slave-type
           Alias: slave-type

           Setting name of the device type of this slave's master connection
           (eg, "bond"), or NULL if this connection is not a slave.

           Format: string

       stable-id
           This represents the identity of the connection used for various
           purposes. It allows to configure multiple profiles to share the
           identity. Also, the stable-id can contain placeholders that are
           substituted dynamically and deterministically depending on the
           context.

           The stable-id is used for generating IPv6 stable private addresses
           with ipv6.addr-gen-mode=stable-privacy. It is also used to seed the
           generated cloned MAC address for ethernet.cloned-mac-address=stable
           and wifi.cloned-mac-address=stable. It is also used as DHCP client
           identifier with ipv4.dhcp-client-id=stable and to derive the DHCP
           DUID with ipv6.dhcp-duid=stable-[llt,ll,uuid].

           Note that depending on the context where it is used, other
           parameters are also seeded into the generation algorithm. For
           example, a per-host key is commonly also included, so that
           different systems end up generating different IDs. Or with
           ipv6.addr-gen-mode=stable-privacy, also the device's name is
           included, so that different interfaces yield different addresses.
           The per-host key is the identity of your machine and stored in
           /var/lib/NetworkManager/secret_key. See NetworkManager(8) manual
           about the secret-key and the host identity.

           The '$' character is treated special to perform dynamic
           substitutions at runtime. Currently, supported are "${CONNECTION}",
           "${DEVICE}", "${MAC}", "${BOOT}", "${RANDOM}". These effectively
           create unique IDs per-connection, per-device, per-boot, or every
           time. Note that "${DEVICE}" corresponds to the interface name of
           the device and "${MAC}" is the permanent MAC address of the device.
           Any unrecognized patterns following '$' are treated verbatim,
           however are reserved for future use. You are thus advised to avoid
           '$' or escape it as "$$". For example, set it to
           "${CONNECTION}-${BOOT}-${DEVICE}" to create a unique id for this
           connection that changes with every reboot and differs depending on
           the interface where the profile activates.

           If the value is unset, a global connection default is consulted. If
           the value is still unset, the default is similar to "${CONNECTION}"
           and uses a unique, fixed ID for the connection.

           Format: string

       timestamp
           The time, in seconds since the Unix Epoch, that the connection was
           last _successfully_ fully activated.

           NetworkManager updates the connection timestamp periodically when
           the connection is active to ensure that an active connection has
           the latest timestamp. The property is only meant for reading
           (changes to this property will not be preserved).

           Format: uint64

       type
           Alias: type

           Base type of the connection. For hardware-dependent connections,
           should contain the setting name of the hardware-type specific
           setting (ie, "802-3-ethernet" or "802-11-wireless" or "bluetooth",
           etc), and for non-hardware dependent connections like VPN or
           otherwise, should contain the setting name of that setting type
           (ie, "vpn" or "bridge", etc).

           Format: string

       uuid
           A universally unique identifier for the connection, for example
           generated with libuuid. It should be assigned when the connection
           is created, and never changed as long as the connection still
           applies to the same network. For example, it should not be changed
           when the "id" property or NMSettingIP4Config changes, but might
           need to be re-created when the Wi-Fi SSID, mobile broadband network
           provider, or "type" property changes.

           The UUID must be in the format
           "2815492f-7e56-435e-b2e9-246bd7cdc664" (ie, contains only
           hexadecimal characters and "-").

           Format: a valid RFC4122 universally unique identifier (UUID).

       wait-activation-delay
           Time in milliseconds to wait for connection to be considered
           activated. The wait will start after the pre-up dispatcher event.

           The value 0 means no wait time. The default value is -1, which
           currently has the same meaning as no wait time.

           Format: int32

       wait-device-timeout
           Timeout in milliseconds to wait for device at startup. During boot,
           devices may take a while to be detected by the driver. This
           property will cause to delay NetworkManager-wait-online.service and
           nm-online to give the device a chance to appear. This works by
           waiting for the given timeout until a compatible device for the
           profile is available and managed.

           The value 0 means no wait time. The default value is -1, which
           currently has the same meaning as no wait time.

           Format: int32

       zone
           The trust level of a the connection. Free form case-insensitive
           string (for example "Home", "Work", "Public"). NULL or unspecified
           zone means the connection will be placed in the default zone as
           defined by the firewall.

           When updating this property on a currently activated connection,
           the change takes effect immediately.

           Format: string

   6lowpan setting
       6LoWPAN Settings.

       Properties:

       parent
           Alias: dev

           If given, specifies the parent interface name or parent connection
           UUID from which this 6LowPAN interface should be created.

           Format: string

   802-1x setting
       IEEE 802.1x Authentication Settings.

       Properties:

       altsubject-matches
           List of strings to be matched against the altSubjectName of the
           certificate presented by the authentication server. If the list is
           empty, no verification of the server certificate's altSubjectName
           is performed.

           Format: array of string

       anonymous-identity
           Anonymous identity string for EAP authentication methods. Used as
           the unencrypted identity with EAP types that support different
           tunneled identity like EAP-TTLS.

           Format: string

       auth-timeout
           A timeout for the authentication. Zero means the global default; if
           the global default is not set, the authentication timeout is 25
           seconds.

           Format: int32

       ca-cert
           Contains the CA certificate if used by the EAP method specified in
           the "eap" property.

           Certificate data is specified using a "scheme"; three are currently
           supported: blob, path and pkcs#11 URL. When using the blob scheme
           this property should be set to the certificate's DER encoded data.
           When using the path scheme, this property should be set to the full
           UTF-8 encoded path of the certificate, prefixed with the string
           "file://" and ending with a terminating NUL byte. This property can
           be unset even if the EAP method supports CA certificates, but this
           allows man-in-the-middle attacks and is NOT recommended.

           Note that enabling NMSetting8021x:system-ca-certs will override
           this setting to use the built-in path, if the built-in path is not
           a directory.

           Format: byte array

       ca-cert-password
           The password used to access the CA certificate stored in "ca-cert"
           property. Only makes sense if the certificate is stored on a
           PKCS#11 token that requires a login.

           Format: string

       ca-cert-password-flags
           Flags indicating how to handle the "ca-cert-password" property.

           Format: NMSettingSecretFlags (uint32)

       ca-path
           UTF-8 encoded path to a directory containing PEM or DER formatted
           certificates to be added to the verification chain in addition to
           the certificate specified in the "ca-cert" property.

           If NMSetting8021x:system-ca-certs is enabled and the built-in CA
           path is an existing directory, then this setting is ignored.

           Format: string

       client-cert
           Contains the client certificate if used by the EAP method specified
           in the "eap" property.

           Certificate data is specified using a "scheme"; two are currently
           supported: blob and path. When using the blob scheme (which is
           backwards compatible with NM 0.7.x) this property should be set to
           the certificate's DER encoded data. When using the path scheme,
           this property should be set to the full UTF-8 encoded path of the
           certificate, prefixed with the string "file://" and ending with a
           terminating NUL byte.

           Format: byte array

       client-cert-password
           The password used to access the client certificate stored in
           "client-cert" property. Only makes sense if the certificate is
           stored on a PKCS#11 token that requires a login.

           Format: string

       client-cert-password-flags
           Flags indicating how to handle the "client-cert-password" property.

           Format: NMSettingSecretFlags (uint32)

       domain-match
           Constraint for server domain name. If set, this list of FQDNs is
           used as a match requirement for dNSName element(s) of the
           certificate presented by the authentication server. If a matching
           dNSName is found, this constraint is met. If no dNSName values are
           present, this constraint is matched against SubjectName CN using
           the same comparison. Multiple valid FQDNs can be passed as a ";"
           delimited list.

           Format: string

       domain-suffix-match
           Constraint for server domain name. If set, this FQDN is used as a
           suffix match requirement for dNSName element(s) of the certificate
           presented by the authentication server. If a matching dNSName is
           found, this constraint is met. If no dNSName values are present,
           this constraint is matched against SubjectName CN using same suffix
           match comparison. Since version 1.24, multiple valid FQDNs can be
           passed as a ";" delimited list.

           Format: string

       eap
           The allowed EAP method to be used when authenticating to the
           network with 802.1x. Valid methods are: "leap", "md5", "tls",
           "peap", "ttls", "pwd", and "fast". Each method requires different
           configuration using the properties of this setting; refer to
           wpa_supplicant documentation for the allowed combinations.

           Format: array of string

       identity
           Identity string for EAP authentication methods. Often the user's
           user or login name.

           Format: string

       optional
           Whether the 802.1X authentication is optional. If TRUE, the
           activation will continue even after a timeout or an authentication
           failure. Setting the property to TRUE is currently allowed only for
           Ethernet connections. If set to FALSE, the activation can continue
           only after a successful authentication.

           Format: boolean

       pac-file
           UTF-8 encoded file path containing PAC for EAP-FAST.

           Format: string

       password
           UTF-8 encoded password used for EAP authentication methods. If both
           the "password" property and the "password-raw" property are
           specified, "password" is preferred.

           Format: string

       password-flags
           Flags indicating how to handle the "password" property.

           Format: NMSettingSecretFlags (uint32)

       password-raw
           Password used for EAP authentication methods, given as a byte array
           to allow passwords in other encodings than UTF-8 to be used. If
           both the "password" property and the "password-raw" property are
           specified, "password" is preferred.

           Format: byte array

       password-raw-flags
           Flags indicating how to handle the "password-raw" property.

           Format: NMSettingSecretFlags (uint32)

       phase1-auth-flags
           Specifies authentication flags to use in "phase 1" outer
           authentication using NMSetting8021xAuthFlags options. The
           individual TLS versions can be explicitly disabled. TLS time checks
           can be also disabled. If a certain TLS disable flag is not set, it
           is up to the supplicant to allow or forbid it. The TLS options map
           to tls_disable_tlsv1_x and tls_disable_time_checks settings. See
           the wpa_supplicant documentation for more details.

           Format: uint32

       phase1-fast-provisioning
           Enables or disables in-line provisioning of EAP-FAST credentials
           when FAST is specified as the EAP method in the "eap" property.
           Recognized values are "0" (disabled), "1" (allow unauthenticated
           provisioning), "2" (allow authenticated provisioning), and "3"
           (allow both authenticated and unauthenticated provisioning). See
           the wpa_supplicant documentation for more details.

           Format: string

       phase1-peaplabel
           Forces use of the new PEAP label during key derivation. Some RADIUS
           servers may require forcing the new PEAP label to interoperate with
           PEAPv1. Set to "1" to force use of the new PEAP label. See the
           wpa_supplicant documentation for more details.

           Format: string

       phase1-peapver
           Forces which PEAP version is used when PEAP is set as the EAP
           method in the "eap" property. When unset, the version reported by
           the server will be used. Sometimes when using older RADIUS servers,
           it is necessary to force the client to use a particular PEAP
           version. To do so, this property may be set to "0" or "1" to force
           that specific PEAP version.

           Format: string

       phase2-altsubject-matches
           List of strings to be matched against the altSubjectName of the
           certificate presented by the authentication server during the inner
           "phase 2" authentication. If the list is empty, no verification of
           the server certificate's altSubjectName is performed.

           Format: array of string

       phase2-auth
           Specifies the allowed "phase 2" inner authentication method when an
           EAP method that uses an inner TLS tunnel is specified in the "eap"
           property. For TTLS this property selects one of the supported
           non-EAP inner methods: "pap", "chap", "mschap", "mschapv2" while
           "phase2-autheap" selects an EAP inner method. For PEAP this selects
           an inner EAP method, one of: "gtc", "otp", "md5" and "tls". Each
           "phase 2" inner method requires specific parameters for successful
           authentication; see the wpa_supplicant documentation for more
           details. Both "phase2-auth" and "phase2-autheap" cannot be
           specified.

           Format: string

       phase2-autheap
           Specifies the allowed "phase 2" inner EAP-based authentication
           method when TTLS is specified in the "eap" property. Recognized
           EAP-based "phase 2" methods are "md5", "mschapv2", "otp", "gtc",
           and "tls". Each "phase 2" inner method requires specific parameters
           for successful authentication; see the wpa_supplicant documentation
           for more details.

           Format: string

       phase2-ca-cert
           Contains the "phase 2" CA certificate if used by the EAP method
           specified in the "phase2-auth" or "phase2-autheap" properties.

           Certificate data is specified using a "scheme"; three are currently
           supported: blob, path and pkcs#11 URL. When using the blob scheme
           this property should be set to the certificate's DER encoded data.
           When using the path scheme, this property should be set to the full
           UTF-8 encoded path of the certificate, prefixed with the string
           "file://" and ending with a terminating NUL byte. This property can
           be unset even if the EAP method supports CA certificates, but this
           allows man-in-the-middle attacks and is NOT recommended.

           Note that enabling NMSetting8021x:system-ca-certs will override
           this setting to use the built-in path, if the built-in path is not
           a directory.

           Format: byte array

       phase2-ca-cert-password
           The password used to access the "phase2" CA certificate stored in
           "phase2-ca-cert" property. Only makes sense if the certificate is
           stored on a PKCS#11 token that requires a login.

           Format: string

       phase2-ca-cert-password-flags
           Flags indicating how to handle the "phase2-ca-cert-password"
           property.

           Format: NMSettingSecretFlags (uint32)

       phase2-ca-path
           UTF-8 encoded path to a directory containing PEM or DER formatted
           certificates to be added to the verification chain in addition to
           the certificate specified in the "phase2-ca-cert" property.

           If NMSetting8021x:system-ca-certs is enabled and the built-in CA
           path is an existing directory, then this setting is ignored.

           Format: string

       phase2-client-cert
           Contains the "phase 2" client certificate if used by the EAP method
           specified in the "phase2-auth" or "phase2-autheap" properties.

           Certificate data is specified using a "scheme"; two are currently
           supported: blob and path. When using the blob scheme (which is
           backwards compatible with NM 0.7.x) this property should be set to
           the certificate's DER encoded data. When using the path scheme,
           this property should be set to the full UTF-8 encoded path of the
           certificate, prefixed with the string "file://" and ending with a
           terminating NUL byte. This property can be unset even if the EAP
           method supports CA certificates, but this allows man-in-the-middle
           attacks and is NOT recommended.

           Format: byte array

       phase2-client-cert-password
           The password used to access the "phase2" client certificate stored
           in "phase2-client-cert" property. Only makes sense if the
           certificate is stored on a PKCS#11 token that requires a login.

           Format: string

       phase2-client-cert-password-flags
           Flags indicating how to handle the "phase2-client-cert-password"
           property.

           Format: NMSettingSecretFlags (uint32)

       phase2-domain-match
           Constraint for server domain name. If set, this list of FQDNs is
           used as a match requirement for dNSName element(s) of the
           certificate presented by the authentication server during the inner
           "phase 2" authentication. If a matching dNSName is found, this
           constraint is met. If no dNSName values are present, this
           constraint is matched against SubjectName CN using the same
           comparison. Multiple valid FQDNs can be passed as a ";" delimited
           list.

           Format: string

       phase2-domain-suffix-match
           Constraint for server domain name. If set, this FQDN is used as a
           suffix match requirement for dNSName element(s) of the certificate
           presented by the authentication server during the inner "phase 2"
           authentication. If a matching dNSName is found, this constraint is
           met. If no dNSName values are present, this constraint is matched
           against SubjectName CN using same suffix match comparison. Since
           version 1.24, multiple valid FQDNs can be passed as a ";" delimited
           list.

           Format: string

       phase2-private-key
           Contains the "phase 2" inner private key when the "phase2-auth" or
           "phase2-autheap" property is set to "tls".

           Key data is specified using a "scheme"; two are currently
           supported: blob and path. When using the blob scheme and private
           keys, this property should be set to the key's encrypted PEM
           encoded data. When using private keys with the path scheme, this
           property should be set to the full UTF-8 encoded path of the key,
           prefixed with the string "file://" and ending with a terminating
           NUL byte. When using PKCS#12 format private keys and the blob
           scheme, this property should be set to the PKCS#12 data and the
           "phase2-private-key-password" property must be set to password used
           to decrypt the PKCS#12 certificate and key. When using PKCS#12
           files and the path scheme, this property should be set to the full
           UTF-8 encoded path of the key, prefixed with the string "file://"
           and ending with a terminating NUL byte, and as with the blob scheme
           the "phase2-private-key-password" property must be set to the
           password used to decode the PKCS#12 private key and certificate.

           Format: byte array

       phase2-private-key-password
           The password used to decrypt the "phase 2" private key specified in
           the "phase2-private-key" property when the private key either uses
           the path scheme, or is a PKCS#12 format key.

           Format: string

       phase2-private-key-password-flags
           Flags indicating how to handle the "phase2-private-key-password"
           property.

           Format: NMSettingSecretFlags (uint32)

       phase2-subject-match
           Substring to be matched against the subject of the certificate
           presented by the authentication server during the inner "phase 2"
           authentication. When unset, no verification of the authentication
           server certificate's subject is performed. This property provides
           little security, if any, and should not be used.

           This property is deprecated since version 1.2. Use
           "phase2-domain-suffix-match" instead.

           Format: string

       pin
           PIN used for EAP authentication methods.

           Format: string

       pin-flags
           Flags indicating how to handle the "pin" property.

           Format: NMSettingSecretFlags (uint32)

       private-key
           Contains the private key when the "eap" property is set to "tls".

           Key data is specified using a "scheme"; two are currently
           supported: blob and path. When using the blob scheme and private
           keys, this property should be set to the key's encrypted PEM
           encoded data. When using private keys with the path scheme, this
           property should be set to the full UTF-8 encoded path of the key,
           prefixed with the string "file://" and ending with a terminating
           NUL byte. When using PKCS#12 format private keys and the blob
           scheme, this property should be set to the PKCS#12 data and the
           "private-key-password" property must be set to password used to
           decrypt the PKCS#12 certificate and key. When using PKCS#12 files
           and the path scheme, this property should be set to the full UTF-8
           encoded path of the key, prefixed with the string "file://" and
           ending with a terminating NUL byte, and as with the blob scheme the
           "private-key-password" property must be set to the password used to
           decode the PKCS#12 private key and certificate.

           WARNING: "private-key" is not a "secret" property, and thus
           unencrypted private key data using the BLOB scheme may be readable
           by unprivileged users. Private keys should always be encrypted with
           a private key password to prevent unauthorized access to
           unencrypted private key data.

           Format: byte array

       private-key-password
           The password used to decrypt the private key specified in the
           "private-key" property when the private key either uses the path
           scheme, or if the private key is a PKCS#12 format key.

           Format: string

       private-key-password-flags
           Flags indicating how to handle the "private-key-password" property.

           Format: NMSettingSecretFlags (uint32)

       subject-match
           Substring to be matched against the subject of the certificate
           presented by the authentication server. When unset, no verification
           of the authentication server certificate's subject is performed.
           This property provides little security, if any, and should not be
           used.

           This property is deprecated since version 1.2. Use
           "phase2-domain-suffix-match" instead.

           Format: string

       system-ca-certs
           When TRUE, overrides the "ca-path" and "phase2-ca-path" properties
           using the system CA directory specified at configure time with the
           --system-ca-path switch. The certificates in this directory are
           added to the verification chain in addition to any certificates
           specified by the "ca-cert" and "phase2-ca-cert" properties. If the
           path provided with --system-ca-path is rather a file name (bundle
           of trusted CA certificates), it overrides "ca-cert" and
           "phase2-ca-cert" properties instead (sets ca_cert/ca_cert2 options
           for wpa_supplicant).

           Format: boolean

   adsl setting
       ADSL Settings.

       Properties:

       encapsulation
           Alias: encapsulation

           Encapsulation of ADSL connection. Can be "vcmux" or "llc".

           Format: string

       password
           Alias: password

           Password used to authenticate with the ADSL service.

           Format: string

       password-flags
           Flags indicating how to handle the "password" property.

           Format: NMSettingSecretFlags (uint32)

       protocol
           Alias: protocol

           ADSL connection protocol. Can be "pppoa", "pppoe" or "ipoatm".

           Format: string

       username
           Alias: username

           Username used to authenticate with the ADSL service.

           Format: string

       vci
           VCI of ADSL connection

           Format: uint32

       vpi
           VPI of ADSL connection

           Format: uint32

   bluetooth setting
       Bluetooth Settings.

       Properties:

       bdaddr
           Alias: addr

           The Bluetooth address of the device.

           Format: byte array

       type
           Alias: bt-type

           Either "dun" for Dial-Up Networking connections or "panu" for
           Personal Area Networking connections to devices supporting the NAP
           profile.

           Format: string

   bond setting
       Bonding Settings.

       Properties:

       options
           Dictionary of key/value pairs of bonding options. Both keys and
           values must be strings. Option names must contain only alphanumeric
           characters (ie, [a-zA-Z0-9]).

           Format: dict of string to string

   bridge setting
       Bridging Settings.

       Properties:

       ageing-time
           Alias: ageing-time

           The Ethernet MAC address aging time, in seconds.

           Format: uint32

       forward-delay
           Alias: forward-delay

           The Spanning Tree Protocol (STP) forwarding delay, in seconds.

           Format: uint32

       group-address
           If specified, The MAC address of the multicast group this bridge
           uses for STP.

           The address must be a link-local address in standard Ethernet MAC
           address format, ie an address of the form 01:80:C2:00:00:0X, with X
           in [0, 4..F]. If not specified the default value is
           01:80:C2:00:00:00.

           Format: byte array

       group-forward-mask
           Alias: group-forward-mask

           A mask of group addresses to forward. Usually, group addresses in
           the range from 01:80:C2:00:00:00 to 01:80:C2:00:00:0F are not
           forwarded according to standards. This property is a mask of 16
           bits, each corresponding to a group address in that range that must
           be forwarded. The mask can't have bits 0, 1 or 2 set because they
           are used for STP, MAC pause frames and LACP.

           Format: uint32

       hello-time
           Alias: hello-time

           The Spanning Tree Protocol (STP) hello time, in seconds.

           Format: uint32

       mac-address
           Alias: mac

           If specified, the MAC address of bridge. When creating a new
           bridge, this MAC address will be set.

           If this field is left unspecified, the
           "ethernet.cloned-mac-address" is referred instead to generate the
           initial MAC address. Note that setting
           "ethernet.cloned-mac-address" anyway overwrites the MAC address of
           the bridge later while activating the bridge.

           This property is deprecated since version 1.12. Use the
           "cloned-mac-address" property instead.

           Format: byte array

       max-age
           Alias: max-age

           The Spanning Tree Protocol (STP) maximum message age, in seconds.

           Format: uint32

       multicast-hash-max
           Set maximum size of multicast hash table (value must be a power of
           2).

           Format: uint32

       multicast-last-member-count
           Set the number of queries the bridge will send before stopping
           forwarding a multicast group after a "leave" message has been
           received.

           Format: uint32

       multicast-last-member-interval
           Set interval (in deciseconds) between queries to find remaining
           members of a group, after a "leave" message is received.

           Format: uint64

       multicast-membership-interval
           Set delay (in deciseconds) after which the bridge will leave a
           group, if no membership reports for this group are received.

           Format: uint64

       multicast-querier
           Enable or disable sending of multicast queries by the bridge. If
           not specified the option is disabled.

           Format: boolean

       multicast-querier-interval
           If no queries are seen after this delay (in deciseconds) has
           passed, the bridge will start to send its own queries.

           Format: uint64

       multicast-query-interval
           Interval (in deciseconds) between queries sent by the bridge after
           the end of the startup phase.

           Format: uint64

       multicast-query-response-interval
           Set the Max Response Time/Max Response Delay (in deciseconds) for
           IGMP/MLD queries sent by the bridge.

           Format: uint64

       multicast-query-use-ifaddr
           If enabled the bridge's own IP address is used as the source
           address for IGMP queries otherwise the default of 0.0.0.0 is used.

           Format: boolean

       multicast-router
           Sets bridge's multicast router. Multicast-snooping must be enabled
           for this option to work.

           Supported values are: 'auto', 'disabled', 'enabled' to which kernel
           assigns the numbers 1, 0, and 2, respectively. If not specified the
           default value is 'auto' (1).

           Format: string

       multicast-snooping
           Alias: multicast-snooping

           Controls whether IGMP snooping is enabled for this bridge. Note
           that if snooping was automatically disabled due to hash collisions,
           the system may refuse to enable the feature until the collisions
           are resolved.

           Format: boolean

       multicast-startup-query-count
           Set the number of IGMP queries to send during startup phase.

           Format: uint32

       multicast-startup-query-interval
           Sets the time (in deciseconds) between queries sent out at startup
           to determine membership information.

           Format: uint64

       priority
           Alias: priority

           Sets the Spanning Tree Protocol (STP) priority for this bridge.
           Lower values are "better"; the lowest priority bridge will be
           elected the root bridge.

           Format: uint32

       stp
           Alias: stp

           Controls whether Spanning Tree Protocol (STP) is enabled for this
           bridge.

           Format: boolean

       vlan-default-pvid
           The default PVID for the ports of the bridge, that is the VLAN id
           assigned to incoming untagged frames.

           Format: uint32

       vlan-filtering
           Control whether VLAN filtering is enabled on the bridge.

           Format: boolean

       vlan-protocol
           If specified, the protocol used for VLAN filtering.

           Supported values are: '802.1Q', '802.1ad'. If not specified the
           default value is '802.1Q'.

           Format: string

       vlan-stats-enabled
           Controls whether per-VLAN stats accounting is enabled.

           Format: boolean

       vlans
           Array of bridge VLAN objects. In addition to the VLANs specified
           here, the bridge will also have the default-pvid VLAN configured by
           the bridge.vlan-default-pvid property.

           In nmcli the VLAN list can be specified with the following syntax:

           $vid [pvid] [untagged] [, $vid [pvid] [untagged]]...

           where $vid is either a single id between 1 and 4094 or a range,
           represented as a couple of ids separated by a dash.

           Format: array of vardict

   bridge-port setting
       Bridge Port Settings.

       Properties:

       hairpin-mode
           Alias: hairpin

           Enables or disables "hairpin mode" for the port, which allows
           frames to be sent back out through the port the frame was received
           on.

           Format: boolean

       path-cost
           Alias: path-cost

           The Spanning Tree Protocol (STP) port cost for destinations via
           this port.

           Format: uint32

       priority
           Alias: priority

           The Spanning Tree Protocol (STP) priority of this bridge port.

           Format: uint32

       vlans
           Array of bridge VLAN objects. In addition to the VLANs specified
           here, the port will also have the default-pvid VLAN configured on
           the bridge by the bridge.vlan-default-pvid property.

           In nmcli the VLAN list can be specified with the following syntax:

           $vid [pvid] [untagged] [, $vid [pvid] [untagged]]...

           where $vid is either a single id between 1 and 4094 or a range,
           represented as a couple of ids separated by a dash.

           Format: array of vardict

   cdma setting
       CDMA-based Mobile Broadband Settings.

       Properties:

       mtu
           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple frames.

           Format: uint32

       number
           The number to dial to establish the connection to the CDMA-based
           mobile broadband network, if any. If not specified, the default
           number (#777) is used when required.

           Format: string

       password
           Alias: password

           The password used to authenticate with the network, if required.
           Many providers do not require a password, or accept any password.
           But if a password is required, it is specified here.

           Format: string

       password-flags
           Flags indicating how to handle the "password" property.

           Format: NMSettingSecretFlags (uint32)

       username
           Alias: user

           The username used to authenticate with the network, if required.
           Many providers do not require a username, or accept any username.
           But if a username is required, it is specified here.

           Format: string

   dcb setting
       Data Center Bridging Settings.

       Properties:

       app-fcoe-flags
           Specifies the NMSettingDcbFlags for the DCB FCoE application. Flags
           may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1),
           NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
           NM_SETTING_DCB_FLAG_WILLING (0x4).

           Format: NMSettingDcbFlags (uint32)

       app-fcoe-mode
           The FCoE controller mode; either "fabric" or "vn2vn".

           Since 1.34, NULL is the default and means "fabric". Before 1.34,
           NULL was rejected as invalid and the default was "fabric".

           Format: string

       app-fcoe-priority
           The highest User Priority (0 - 7) which FCoE frames should use, or
           -1 for default priority. Only used when the "app-fcoe-flags"
           property includes the NM_SETTING_DCB_FLAG_ENABLE (0x1) flag.

           Format: int32

       app-fip-flags
           Specifies the NMSettingDcbFlags for the DCB FIP application. Flags
           may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1),
           NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
           NM_SETTING_DCB_FLAG_WILLING (0x4).

           Format: NMSettingDcbFlags (uint32)

       app-fip-priority
           The highest User Priority (0 - 7) which FIP frames should use, or
           -1 for default priority. Only used when the "app-fip-flags"
           property includes the NM_SETTING_DCB_FLAG_ENABLE (0x1) flag.

           Format: int32

       app-iscsi-flags
           Specifies the NMSettingDcbFlags for the DCB iSCSI application.
           Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1),
           NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
           NM_SETTING_DCB_FLAG_WILLING (0x4).

           Format: NMSettingDcbFlags (uint32)

       app-iscsi-priority
           The highest User Priority (0 - 7) which iSCSI frames should use, or
           -1 for default priority. Only used when the "app-iscsi-flags"
           property includes the NM_SETTING_DCB_FLAG_ENABLE (0x1) flag.

           Format: int32

       priority-bandwidth
           An array of 8 uint values, where the array index corresponds to the
           User Priority (0 - 7) and the value indicates the percentage of
           bandwidth of the priority's assigned group that the priority may
           use. The sum of all percentages for priorities which belong to the
           same group must total 100 percents.

           Format: array of uint32

       priority-flow-control
           An array of 8 boolean values, where the array index corresponds to
           the User Priority (0 - 7) and the value indicates whether or not
           the corresponding priority should transmit priority pause.

           Format: array of uint32

       priority-flow-control-flags
           Specifies the NMSettingDcbFlags for DCB Priority Flow Control
           (PFC). Flags may be any combination of NM_SETTING_DCB_FLAG_ENABLE
           (0x1), NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
           NM_SETTING_DCB_FLAG_WILLING (0x4).

           Format: NMSettingDcbFlags (uint32)

       priority-group-bandwidth
           An array of 8 uint values, where the array index corresponds to the
           Priority Group ID (0 - 7) and the value indicates the percentage of
           link bandwidth allocated to that group. Allowed values are 0 - 100,
           and the sum of all values must total 100 percents.

           Format: array of uint32

       priority-group-flags
           Specifies the NMSettingDcbFlags for DCB Priority Groups. Flags may
           be any combination of NM_SETTING_DCB_FLAG_ENABLE (0x1),
           NM_SETTING_DCB_FLAG_ADVERTISE (0x2), and
           NM_SETTING_DCB_FLAG_WILLING (0x4).

           Format: NMSettingDcbFlags (uint32)

       priority-group-id
           An array of 8 uint values, where the array index corresponds to the
           User Priority (0 - 7) and the value indicates the Priority Group
           ID. Allowed Priority Group ID values are 0 - 7 or 15 for the
           unrestricted group.

           Format: array of uint32

       priority-strict-bandwidth
           An array of 8 boolean values, where the array index corresponds to
           the User Priority (0 - 7) and the value indicates whether or not
           the priority may use all of the bandwidth allocated to its assigned
           group.

           Format: array of uint32

       priority-traffic-class
           An array of 8 uint values, where the array index corresponds to the
           User Priority (0 - 7) and the value indicates the traffic class (0
           - 7) to which the priority is mapped.

           Format: array of uint32

   ethtool setting
       Ethtool Ethernet Settings.

       Properties:

       coalesce-adaptive-rx

       coalesce-adaptive-tx

       coalesce-pkt-rate-high

       coalesce-pkt-rate-low

       coalesce-rx-frames

       coalesce-rx-frames-high

       coalesce-rx-frames-irq

       coalesce-rx-frames-low

       coalesce-rx-usecs

       coalesce-rx-usecs-high

       coalesce-rx-usecs-irq

       coalesce-rx-usecs-low

       coalesce-sample-interval

       coalesce-stats-block-usecs

       coalesce-tx-frames

       coalesce-tx-frames-high

       coalesce-tx-frames-irq

       coalesce-tx-frames-low

       coalesce-tx-usecs

       coalesce-tx-usecs-high

       coalesce-tx-usecs-irq

       coalesce-tx-usecs-low

       feature-esp-hw-offload

       feature-esp-tx-csum-hw-offload

       feature-fcoe-mtu

       feature-gro

       feature-gso

       feature-highdma

       feature-hw-tc-offload

       feature-l2-fwd-offload

       feature-loopback

       feature-lro

       feature-macsec-hw-offload

       feature-ntuple

       feature-rx

       feature-rx-all

       feature-rx-fcs

       feature-rx-gro-hw

       feature-rx-gro-list

       feature-rx-udp-gro-forwarding

       feature-rx-udp_tunnel-port-offload

       feature-rx-vlan-filter

       feature-rx-vlan-stag-filter

       feature-rx-vlan-stag-hw-parse

       feature-rxhash

       feature-rxvlan

       feature-sg

       feature-tls-hw-record

       feature-tls-hw-rx-offload

       feature-tls-hw-tx-offload

       feature-tso

       feature-tx

       feature-tx-checksum-fcoe-crc

       feature-tx-checksum-ip-generic

       feature-tx-checksum-ipv4

       feature-tx-checksum-ipv6

       feature-tx-checksum-sctp

       feature-tx-esp-segmentation

       feature-tx-fcoe-segmentation

       feature-tx-gre-csum-segmentation

       feature-tx-gre-segmentation

       feature-tx-gso-list

       feature-tx-gso-partial

       feature-tx-gso-robust

       feature-tx-ipxip4-segmentation

       feature-tx-ipxip6-segmentation

       feature-tx-nocache-copy

       feature-tx-scatter-gather

       feature-tx-scatter-gather-fraglist

       feature-tx-sctp-segmentation

       feature-tx-tcp-ecn-segmentation

       feature-tx-tcp-mangleid-segmentation

       feature-tx-tcp-segmentation

       feature-tx-tcp6-segmentation

       feature-tx-tunnel-remcsum-segmentation

       feature-tx-udp-segmentation

       feature-tx-udp_tnl-csum-segmentation

       feature-tx-udp_tnl-segmentation

       feature-tx-vlan-stag-hw-insert

       feature-txvlan

       pause-autoneg

       pause-rx

       pause-tx

       ring-rx

       ring-rx-jumbo

       ring-rx-mini

       ring-tx

   gsm setting
       GSM-based Mobile Broadband Settings.

       Properties:

       apn
           Alias: apn

           The GPRS Access Point Name specifying the APN used when
           establishing a data session with the GSM-based network. The APN
           often determines how the user will be billed for their network
           usage and whether the user has access to the Internet or just a
           provider-specific walled-garden, so it is important to use the
           correct APN for the user's mobile broadband plan. The APN may only
           be composed of the characters a-z, 0-9, ., and - per GSM 03.60
           Section 14.9.

           Format: string

       auto-config
           When TRUE, the settings such as APN, username, or password will
           default to values that match the network the modem will register to
           in the Mobile Broadband Provider database.

           Format: boolean

       device-id
           The device unique identifier (as given by the WWAN management
           service) which this connection applies to. If given, the connection
           will only apply to the specified device.

           Format: string

       home-only
           When TRUE, only connections to the home network will be allowed.
           Connections to roaming networks will not be made.

           Format: boolean

       mtu
           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple frames.

           Format: uint32

       network-id
           The Network ID (GSM LAI format, ie MCC-MNC) to force specific
           network registration. If the Network ID is specified,
           NetworkManager will attempt to force the device to register only on
           the specified network. This can be used to ensure that the device
           does not roam when direct roaming control of the device is not
           otherwise possible.

           Format: string

       number
           Legacy setting that used to help establishing PPP data sessions for
           GSM-based modems.

           This property is deprecated since version 1.16. User-provided
           values for this setting are no longer used.

           Format: string

       password
           Alias: password

           The password used to authenticate with the network, if required.
           Many providers do not require a password, or accept any password.
           But if a password is required, it is specified here.

           Format: string

       password-flags
           Flags indicating how to handle the "password" property.

           Format: NMSettingSecretFlags (uint32)

       pin
           If the SIM is locked with a PIN it must be unlocked before any
           other operations are requested. Specify the PIN here to allow
           operation of the device.

           Format: string

       pin-flags
           Flags indicating how to handle the "pin" property.

           Format: NMSettingSecretFlags (uint32)

       sim-id
           The SIM card unique identifier (as given by the WWAN management
           service) which this connection applies to. If given, the connection
           will apply to any device also allowed by "device-id" which contains
           a SIM card matching the given identifier.

           Format: string

       sim-operator-id
           A MCC/MNC string like "310260" or "21601" identifying the specific
           mobile network operator which this connection applies to. If given,
           the connection will apply to any device also allowed by "device-id"
           and "sim-id" which contains a SIM card provisioned by the given
           operator.

           Format: string

       username
           Alias: user

           The username used to authenticate with the network, if required.
           Many providers do not require a username, or accept any username.
           But if a username is required, it is specified here.

           Format: string

   infiniband setting
       Infiniband Settings.

       Properties:

       mac-address
           Alias: mac

           If specified, this connection will only apply to the IPoIB device
           whose permanent MAC address matches. This property does not change
           the MAC address of the device (i.e. MAC spoofing).

           Format: byte array

       mtu
           Alias: mtu

           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple frames.

           Format: uint32

       p-key
           Alias: p-key

           The InfiniBand P_Key to use for this device. A value of -1 means to
           use the default P_Key (aka "the P_Key at index 0"). Otherwise, it
           is a 16-bit unsigned integer, whose high bit is set if it is a
           "full membership" P_Key.

           Format: int32

       parent
           Alias: parent

           The interface name of the parent device of this device. Normally
           NULL, but if the "p_key" property is set, then you must specify the
           base device by setting either this property or "mac-address".

           Format: string

       transport-mode
           Alias: transport-mode

           The IP-over-InfiniBand transport mode. Either "datagram" or
           "connected".

           Format: string

   ipv4 setting
       IPv4 Settings.

       Properties:

       addresses
           Alias: ip4

           Array of IP addresses.

           Format: a comma separated list of addresses

       auto-route-ext-gw
           VPN connections will default to add the route automatically unless
           this setting is set to FALSE.

           For other connection types, adding such an automatic route is
           currently not supported and setting this to TRUE has no effect.

           Format: NMTernary (int32)

       dad-timeout
           Timeout in milliseconds used to check for the presence of duplicate
           IP addresses on the network. If an address conflict is detected,
           the activation will fail. A zero value means that no duplicate
           address detection is performed, -1 means the default value (either
           configuration ipvx.dad-timeout override or zero). A value greater
           than zero is a timeout in milliseconds.

           The property is currently implemented only for IPv4.

           Format: int32

       dhcp-client-id
           A string sent to the DHCP server to identify the local machine
           which the DHCP server may use to customize the DHCP lease and
           options. When the property is a hex string ('aa:bb:cc') it is
           interpreted as a binary client ID, in which case the first byte is
           assumed to be the 'type' field as per RFC 2132 section 9.14 and the
           remaining bytes may be an hardware address (e.g.
           '01:xx:xx:xx:xx:xx:xx' where 1 is the Ethernet ARP type and the
           rest is a MAC address). If the property is not a hex string it is
           considered as a non-hardware-address client ID and the 'type' field
           is set to 0.

           The special values "mac" and "perm-mac" are supported, which use
           the current or permanent MAC address of the device to generate a
           client identifier with type ethernet (01). Currently, these options
           only work for ethernet type of links.

           The special value "ipv6-duid" uses the DUID from "ipv6.dhcp-duid"
           property as an RFC4361-compliant client identifier. As IAID it uses
           "ipv4.dhcp-iaid" and falls back to "ipv6.dhcp-iaid" if unset.

           The special value "duid" generates a RFC4361-compliant client
           identifier based on "ipv4.dhcp-iaid" and uses a DUID generated by
           hashing /etc/machine-id.

           The special value "stable" is supported to generate a type 0 client
           identifier based on the stable-id (see connection.stable-id) and a
           per-host key. If you set the stable-id, you may want to include the
           "${DEVICE}" or "${MAC}" specifier to get a per-device key.

           If unset, a globally configured default is used. If still unset,
           the default depends on the DHCP plugin.

           Format: string

       dhcp-fqdn
           If the "dhcp-send-hostname" property is TRUE, then the specified
           FQDN will be sent to the DHCP server when acquiring a lease. This
           property and "dhcp-hostname" are mutually exclusive and cannot be
           set at the same time.

           Format: string

       dhcp-hostname
           If the "dhcp-send-hostname" property is TRUE, then the specified
           name will be sent to the DHCP server when acquiring a lease. This
           property and "dhcp-fqdn" are mutually exclusive and cannot be set
           at the same time.

           Format: string

       dhcp-hostname-flags
           Flags for the DHCP hostname and FQDN.

           Currently, this property only includes flags to control the FQDN
           flags set in the DHCP FQDN option. Supported FQDN flags are
           NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
           NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) and
           NM_DHCP_HOSTNAME_FLAG_FQDN_NO_UPDATE (0x4). When no FQDN flag is
           set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is set, the
           DHCP FQDN option will contain no flag. Otherwise, if no FQDN flag
           is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is not set,
           the standard FQDN flags are set in the request:
           NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
           NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) for IPv4 and
           NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1) for IPv6.

           When this property is set to the default value
           NM_DHCP_HOSTNAME_FLAG_NONE (0x0), a global default is looked up in
           NetworkManager configuration. If that value is unset or also
           NM_DHCP_HOSTNAME_FLAG_NONE (0x0), then the standard FQDN flags
           described above are sent in the DHCP requests.

           Format: uint32

       dhcp-iaid
           A string containing the "Identity Association Identifier" (IAID)
           used by the DHCP client. The string can be a 32-bit number (either
           decimal, hexadecimal or or as colon separated hexadecimal numbers).
           Alternatively it can be set to the special values "mac",
           "perm-mac", "ifname" or "stable". When set to "mac" (or
           "perm-mac"), the last 4 bytes of the current (or permanent) MAC
           address are used as IAID. When set to "ifname", the IAID is
           computed by hashing the interface name. The special value "stable"
           can be used to generate an IAID based on the stable-id (see
           connection.stable-id), a per-host key and the interface name. When
           the property is unset, the value from global configuration is used;
           if no global default is set then the IAID is assumed to be
           "ifname".

           For DHCPv4, the IAID is only used with "ipv4.dhcp-client-id" values
           "duid" and "ipv6-duid" to generate the client-id.

           For DHCPv6, note that at the moment this property is only supported
           by the "internal" DHCPv6 plugin. The "dhclient" DHCPv6 plugin
           always derives the IAID from the MAC address.

           The actually used DHCPv6 IAID for a currently activated interface
           is exposed in the lease information of the device.

           Format: string

       dhcp-reject-servers
           Array of servers from which DHCP offers must be rejected. This
           property is useful to avoid getting a lease from misconfigured or
           rogue servers.

           For DHCPv4, each element must be an IPv4 address, optionally
           followed by a slash and a prefix length (e.g. "192.168.122.0/24").

           This property is currently not implemented for DHCPv6.

           Format: array of string

       dhcp-send-hostname
           If TRUE, a hostname is sent to the DHCP server when acquiring a
           lease. Some DHCP servers use this hostname to update DNS databases,
           essentially providing a static hostname for the computer. If the
           "dhcp-hostname" property is NULL and this property is TRUE, the
           current persistent hostname of the computer is sent.

           Format: boolean

       dhcp-timeout
           A timeout for a DHCP transaction in seconds. If zero (the default),
           a globally configured default is used. If still unspecified, a
           device specific timeout is used (usually 45 seconds).

           Set to 2147483647 (MAXINT32) for infinity.

           Format: int32

       dhcp-vendor-class-identifier
           The Vendor Class Identifier DHCP option (60). Special characters in
           the data string may be escaped using C-style escapes, nevertheless
           this property cannot contain nul bytes. If the per-profile value is
           unspecified (the default), a global connection default gets
           consulted. If still unspecified, the DHCP option is not sent to the
           server.

           Format: string

       dns
           Array of IP addresses of DNS servers.

           For DoT (DNS over TLS), the SNI server name can be specified by
           appending "#example.com" to the IP address of the DNS server. This
           currently only has effect when using systemd-resolved.

           Format: array of uint32

       dns-options
           Array of DNS options as described in man 5 resolv.conf.

           NULL means that the options are unset and left at the default. In
           this case NetworkManager will use default options. This is distinct
           from an empty list of properties.

           The currently supported options are "attempts", "debug", "edns0",
           "inet6", "ip6-bytestring", "ip6-dotint", "ndots", "no-check-names",
           "no-ip6-dotint", "no-reload", "no-tld-query", "rotate",
           "single-request", "single-request-reopen", "timeout", "trust-ad",
           "use-vc".

           The "trust-ad" setting is only honored if the profile contributes
           name servers to resolv.conf, and if all contributing profiles have
           "trust-ad" enabled.

           When using a caching DNS plugin (dnsmasq or systemd-resolved in
           NetworkManager.conf) then "edns0" and "trust-ad" are automatically
           added.

           Format: array of string

       dns-priority
           DNS servers priority.

           The relative priority for DNS servers specified by this setting. A
           lower numerical value is better (higher priority).

           Negative values have the special effect of excluding other
           configurations with a greater numerical priority value; so in
           presence of at least one negative priority, only DNS servers from
           connections with the lowest priority value will be used. To avoid
           all DNS leaks, set the priority of the profile that should be used
           to the most negative value of all active connections profiles.

           Zero selects a globally configured default value. If the latter is
           missing or zero too, it defaults to 50 for VPNs (including
           WireGuard) and 100 for other connections.

           Note that the priority is to order DNS settings for multiple active
           connections. It does not disambiguate multiple DNS servers within
           the same connection profile.

           When multiple devices have configurations with the same priority,
           VPNs will be considered first, then devices with the best (lowest
           metric) default route and then all other devices.

           When using dns=default, servers with higher priority will be on top
           of resolv.conf. To prioritize a given server over another one
           within the same connection, just specify them in the desired order.
           Note that commonly the resolver tries name servers in
           /etc/resolv.conf in the order listed, proceeding with the next
           server in the list on failure. See for example the "rotate" option
           of the dns-options setting. If there are any negative DNS
           priorities, then only name servers from the devices with that
           lowest priority will be considered.

           When using a DNS resolver that supports Conditional Forwarding or
           Split DNS (with dns=dnsmasq or dns=systemd-resolved settings), each
           connection is used to query domains in its search list. The search
           domains determine which name servers to ask, and the DNS priority
           is used to prioritize name servers based on the domain. Queries for
           domains not present in any search list are routed through
           connections having the '~.' special wildcard domain, which is added
           automatically to connections with the default route (or can be
           added manually). When multiple connections specify the same domain,
           the one with the best priority (lowest numerical value) wins. If a
           sub domain is configured on another interface it will be accepted
           regardless the priority, unless parent domain on the other
           interface has a negative priority, which causes the sub domain to
           be shadowed. With Split DNS one can avoid undesired DNS leaks by
           properly configuring DNS priorities and the search domains, so that
           only name servers of the desired interface are configured.

           Format: int32

       dns-search
           List of DNS search domains. Domains starting with a tilde ('~') are
           considered 'routing' domains and are used only to decide the
           interface over which a query must be forwarded; they are not used
           to complete unqualified host names.

           When using a DNS plugin that supports Conditional Forwarding or
           Split DNS, then the search domains specify which name servers to
           query. This makes the behavior different from running with plain
           /etc/resolv.conf. For more information see also the dns-priority
           setting.

           When set on a profile that also enabled DHCP, the DNS search list
           received automatically (option 119 for DHCPv4 and option 24 for
           DHCPv6) gets merged with the manual list. This can be prevented by
           setting "ignore-auto-dns". Note that if no DNS searches are
           configured, the fallback will be derived from the domain from DHCP
           (option 15).

           Format: array of string

       gateway
           Alias: gw4

           The gateway associated with this configuration. This is only
           meaningful if "addresses" is also set.

           Setting the gateway causes NetworkManager to configure a standard
           default route with the gateway as next hop. This is ignored if
           "never-default" is set. An alternative is to configure the default
           route explicitly with a manual route and /0 as prefix length.

           Note that the gateway usually conflicts with routing that
           NetworkManager configures for WireGuard interfaces, so usually it
           should not be set in that case. See "ip4-auto-default-route".

           Format: string

       ignore-auto-dns
           When "method" is set to "auto" and this property to TRUE,
           automatically configured name servers and search domains are
           ignored and only name servers and search domains specified in the
           "dns" and "dns-search" properties, if any, are used.

           Format: boolean

       ignore-auto-routes
           When "method" is set to "auto" and this property to TRUE,
           automatically configured routes are ignored and only routes
           specified in the "routes" property, if any, are used.

           Format: boolean

       link-local
           Enable and disable the IPv4 link-local configuration independently
           of the ipv4.method configuration. This allows a link-local address
           (169.254.x.y/16) to be obtained in addition to other addresses,
           such as those manually configured or obtained from a DHCP server.

           When set to "auto", the value is dependent on "ipv4.method". When
           set to "default", it honors the global connection default, before
           falling back to "auto". Note that if "ipv4.method" is "disabled",
           then link local addressing is always disabled too. The default is
           "default".

           Format: int32

       may-fail
           If TRUE, allow overall network configuration to proceed even if the
           configuration specified by this property times out. Note that at
           least one IP configuration must succeed or overall network
           configuration will still fail. For example, in IPv6-only networks,
           setting this property to TRUE on the NMSettingIP4Config allows the
           overall network configuration to succeed if IPv4 configuration
           fails but IPv6 configuration completes successfully.

           Format: boolean

       method
           IP configuration method.

           NMSettingIP4Config and NMSettingIP6Config both support "disabled",
           "auto", "manual", and "link-local". See the subclass-specific
           documentation for other values.

           In general, for the "auto" method, properties such as "dns" and
           "routes" specify information that is added on to the information
           returned from automatic configuration. The "ignore-auto-routes" and
           "ignore-auto-dns" properties modify this behavior.

           For methods that imply no upstream network, such as "shared" or
           "link-local", these properties must be empty.

           For IPv4 method "shared", the IP subnet can be configured by adding
           one manual IPv4 address or otherwise 10.42.x.0/24 is chosen. Note
           that the shared method must be configured on the interface which
           shares the internet to a subnet, not on the uplink which is shared.

           Format: string

       never-default
           If TRUE, this connection will never be the default connection for
           this IP type, meaning it will never be assigned the default route
           by NetworkManager.

           Format: boolean

       replace-local-rule
           Connections will default to keep the autogenerated priority 0 local
           rule unless this setting is set to TRUE.

           Format: NMTernary (int32)

       required-timeout
           The minimum time interval in milliseconds for which dynamic IP
           configuration should be tried before the connection succeeds.

           This property is useful for example if both IPv4 and IPv6 are
           enabled and are allowed to fail. Normally the connection succeeds
           as soon as one of the two address families completes; by setting a
           required timeout for e.g. IPv4, one can ensure that even if IP6
           succeeds earlier than IPv4, NetworkManager waits some time for IPv4
           before the connection becomes active.

           Note that if "may-fail" is FALSE for the same address family, this
           property has no effect as NetworkManager needs to wait for the full
           DHCP timeout.

           A zero value means that no required timeout is present, -1 means
           the default value (either configuration ipvx.required-timeout
           override or zero).

           Format: int32

       route-metric
           The default metric for routes that don't explicitly specify a
           metric. The default value -1 means that the metric is chosen
           automatically based on the device type. The metric applies to
           dynamic routes, manual (static) routes that don't have an explicit
           metric setting, address prefix routes, and the default route. Note
           that for IPv6, the kernel accepts zero (0) but coerces it to 1024
           (user default). Hence, setting this property to zero effectively
           mean setting it to 1024. For IPv4, zero is a regular value for the
           metric.

           Format: int64

       route-table
           Enable policy routing (source routing) and set the routing table
           used when adding routes.

           This affects all routes, including device-routes, IPv4LL, DHCP,
           SLAAC, default-routes and static routes. But note that static
           routes can individually overwrite the setting by explicitly
           specifying a non-zero routing table.

           If the table setting is left at zero, it is eligible to be
           overwritten via global configuration. If the property is zero even
           after applying the global configuration value, policy routing is
           disabled for the address family of this connection.

           Policy routing disabled means that NetworkManager will add all
           routes to the main table (except static routes that explicitly
           configure a different table). Additionally, NetworkManager will not
           delete any extraneous routes from tables except the main table.
           This is to preserve backward compatibility for users who manage
           routing tables outside of NetworkManager.

           Format: uint32

       routes
           A list of IPv4 destination addresses, prefix length, optional IPv4
           next hop addresses, optional route metric, optional attribute. The
           valid syntax is: "ip[/prefix] [next-hop] [metric]
           [attribute=val]...[,ip[/prefix]...]". For example "192.0.2.0/24
           10.1.1.1 77, 198.51.100.0/24".

           Various attributes are supported:

           •   "advmss" - an unsigned 32 bit integer.

           •   "cwnd" - an unsigned 32 bit integer.

           •   "initcwnd" - an unsigned 32 bit integer.

           •   "initrwnd" - an unsigned 32 bit integer.

           •   "lock-advmss" - a boolean value.

           •   "lock-cwnd" - a boolean value.

           •   "lock-initcwnd" - a boolean value.

           •   "lock-initrwnd" - a boolean value.

           •   "lock-mtu" - a boolean value.

           •   "lock-window" - a boolean value.

           •   "mtu" - an unsigned 32 bit integer.

           •   "onlink" - a boolean value. The onlink flag is ignored for IPv4
               routes without a gateway. That also means, with a positive
               "weight" the route cannot merge with ECMP routes which are
               onlink and have a gateway.

           •   "quickack" - a boolean value.

           •   "rto_min" - an unsigned 32 bit integer. The value is in
               milliseconds.

           •   "scope" - an unsigned 8 bit integer. IPv4 only.

           •   "src" - an IPv4 address.

           •   "table" - an unsigned 32 bit integer. The default depends on
               ipv4.route-table.

           •   "tos" - an unsigned 8 bit integer. IPv4 only.

           •   "type" - one of unicast, local, blackhole, unreachable,
               prohibit, throw. The default is unicast.

           •   "weight" - an unsigned 32 bit integer ranging from 0 to 256. A
               non-zero weight indicates that the IPv4 route is an ECMP IPv4
               route. NetworkManager will automatically merge compatible ECMP
               routes into multi-hop routes. Setting to zero or omitting the
               attribute configures single hop routes that won't get merged.
               If the route finds no merge partner, it is configured as single
               hop route.

               Note that in NetworkManager, currently all nexthops of a ECMP
               route must share the same "onlink" flag in order to be
               mergable.

           •   "window" - an unsigned 32 bit integer.

           For details see also `man ip-route`.

           Format: a comma separated list of routes

       routing-rules
           A comma separated list of routing rules for policy routing. The
           format is based on ip rule add syntax and mostly compatible. One
           difference is that routing rules in NetworkManager always need a
           fixed priority.

           Example: priority 5 from 192.167.4.0/24 table 45

           Format: a comma separated list of routing rules

   ipv6 setting
       IPv6 Settings.

       Properties:

       addr-gen-mode
           Configure method for creating the address for use with RFC4862 IPv6
           Stateless Address Autoconfiguration. The permitted values are:
           NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64 (0),
           NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY (1).
           NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_DEFAULT_OR_EUI64 (2) or
           NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_DEFAULT (3).

           If the property is set to EUI64, the addresses will be generated
           using the interface tokens derived from hardware address. This
           makes the host part of the address to stay constant, making it
           possible to track host's presence when it changes networks. The
           address changes when the interface hardware is replaced.

           The value of stable-privacy enables use of cryptographically secure
           hash of a secret host-specific key along with the connection's
           stable-id and the network address as specified by RFC7217. This
           makes it impossible to use the address track host's presence, and
           makes the address stable when the network interface hardware is
           replaced.

           The special values "default" and "default-or-eui64" will fallback
           to the global connection default in as documented in
           NetworkManager.conf(5) manual. If the global default is not
           specified, the fallback value is "stable-privacy" or "eui64",
           respectively.

           For libnm, the property defaults to "default" since 1.40.
           Previously it defaulted to "stable-privacy". On D-Bus, the absence
           of an addr-gen-mode setting equals "default". For keyfile plugin,
           the absence of the setting on disk means "default-or-eui64" so that
           the property doesn't change on upgrade from older versions.

           Note that this setting is distinct from the Privacy Extensions as
           configured by "ip6-privacy" property and it does not affect the
           temporary addresses configured with this option.

           Format: int32

       addresses
           Alias: ip6

           Array of IP addresses.

           Format: a comma separated list of addresses

       auto-route-ext-gw
           VPN connections will default to add the route automatically unless
           this setting is set to FALSE.

           For other connection types, adding such an automatic route is
           currently not supported and setting this to TRUE has no effect.

           Format: NMTernary (int32)

       dhcp-duid
           A string containing the DHCPv6 Unique Identifier (DUID) used by the
           dhcp client to identify itself to DHCPv6 servers (RFC 3315). The
           DUID is carried in the Client Identifier option. If the property is
           a hex string ('aa:bb:cc') it is interpreted as a binary DUID and
           filled as an opaque value in the Client Identifier option.

           The special value "lease" will retrieve the DUID previously used
           from the lease file belonging to the connection. If no DUID is
           found and "dhclient" is the configured dhcp client, the DUID is
           searched in the system-wide dhclient lease file. If still no DUID
           is found, or another dhcp client is used, a global and permanent
           DUID-UUID (RFC 6355) will be generated based on the machine-id.

           The special values "llt" and "ll" will generate a DUID of type LLT
           or LL (see RFC 3315) based on the current MAC address of the
           device. In order to try providing a stable DUID-LLT, the time field
           will contain a constant timestamp that is used globally (for all
           profiles) and persisted to disk.

           The special values "stable-llt", "stable-ll" and "stable-uuid" will
           generate a DUID of the corresponding type, derived from the
           connection's stable-id and a per-host unique key. You may want to
           include the "${DEVICE}" or "${MAC}" specifier in the stable-id, in
           case this profile gets activated on multiple devices. So, the
           link-layer address of "stable-ll" and "stable-llt" will be a
           generated address derived from the stable id. The DUID-LLT time
           value in the "stable-llt" option will be picked among a static
           timespan of three years (the upper bound of the interval is the
           same constant timestamp used in "llt").

           When the property is unset, the global value provided for
           "ipv6.dhcp-duid" is used. If no global value is provided, the
           default "lease" value is assumed.

           Format: string

       dhcp-hostname
           If the "dhcp-send-hostname" property is TRUE, then the specified
           name will be sent to the DHCP server when acquiring a lease. This
           property and "dhcp-fqdn" are mutually exclusive and cannot be set
           at the same time.

           Format: string

       dhcp-hostname-flags
           Flags for the DHCP hostname and FQDN.

           Currently, this property only includes flags to control the FQDN
           flags set in the DHCP FQDN option. Supported FQDN flags are
           NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
           NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) and
           NM_DHCP_HOSTNAME_FLAG_FQDN_NO_UPDATE (0x4). When no FQDN flag is
           set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is set, the
           DHCP FQDN option will contain no flag. Otherwise, if no FQDN flag
           is set and NM_DHCP_HOSTNAME_FLAG_FQDN_CLEAR_FLAGS (0x8) is not set,
           the standard FQDN flags are set in the request:
           NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1),
           NM_DHCP_HOSTNAME_FLAG_FQDN_ENCODED (0x2) for IPv4 and
           NM_DHCP_HOSTNAME_FLAG_FQDN_SERV_UPDATE (0x1) for IPv6.

           When this property is set to the default value
           NM_DHCP_HOSTNAME_FLAG_NONE (0x0), a global default is looked up in
           NetworkManager configuration. If that value is unset or also
           NM_DHCP_HOSTNAME_FLAG_NONE (0x0), then the standard FQDN flags
           described above are sent in the DHCP requests.

           Format: uint32

       dhcp-iaid
           A string containing the "Identity Association Identifier" (IAID)
           used by the DHCP client. The string can be a 32-bit number (either
           decimal, hexadecimal or or as colon separated hexadecimal numbers).
           Alternatively it can be set to the special values "mac",
           "perm-mac", "ifname" or "stable". When set to "mac" (or
           "perm-mac"), the last 4 bytes of the current (or permanent) MAC
           address are used as IAID. When set to "ifname", the IAID is
           computed by hashing the interface name. The special value "stable"
           can be used to generate an IAID based on the stable-id (see
           connection.stable-id), a per-host key and the interface name. When
           the property is unset, the value from global configuration is used;
           if no global default is set then the IAID is assumed to be
           "ifname".

           For DHCPv4, the IAID is only used with "ipv4.dhcp-client-id" values
           "duid" and "ipv6-duid" to generate the client-id.

           For DHCPv6, note that at the moment this property is only supported
           by the "internal" DHCPv6 plugin. The "dhclient" DHCPv6 plugin
           always derives the IAID from the MAC address.

           The actually used DHCPv6 IAID for a currently activated interface
           is exposed in the lease information of the device.

           Format: string

       dhcp-send-hostname
           If TRUE, a hostname is sent to the DHCP server when acquiring a
           lease. Some DHCP servers use this hostname to update DNS databases,
           essentially providing a static hostname for the computer. If the
           "dhcp-hostname" property is NULL and this property is TRUE, the
           current persistent hostname of the computer is sent.

           Format: boolean

       dhcp-timeout
           A timeout for a DHCP transaction in seconds. If zero (the default),
           a globally configured default is used. If still unspecified, a
           device specific timeout is used (usually 45 seconds).

           Set to 2147483647 (MAXINT32) for infinity.

           Format: int32

       dns
           Array of IP addresses of DNS servers.

           For DoT (DNS over TLS), the SNI server name can be specified by
           appending "#example.com" to the IP address of the DNS server. This
           currently only has effect when using systemd-resolved.

           Format: array of byte array

       dns-options
           Array of DNS options as described in man 5 resolv.conf.

           NULL means that the options are unset and left at the default. In
           this case NetworkManager will use default options. This is distinct
           from an empty list of properties.

           The currently supported options are "attempts", "debug", "edns0",
           "inet6", "ip6-bytestring", "ip6-dotint", "ndots", "no-check-names",
           "no-ip6-dotint", "no-reload", "no-tld-query", "rotate",
           "single-request", "single-request-reopen", "timeout", "trust-ad",
           "use-vc".

           The "trust-ad" setting is only honored if the profile contributes
           name servers to resolv.conf, and if all contributing profiles have
           "trust-ad" enabled.

           When using a caching DNS plugin (dnsmasq or systemd-resolved in
           NetworkManager.conf) then "edns0" and "trust-ad" are automatically
           added.

           Format: array of string

       dns-priority
           DNS servers priority.

           The relative priority for DNS servers specified by this setting. A
           lower numerical value is better (higher priority).

           Negative values have the special effect of excluding other
           configurations with a greater numerical priority value; so in
           presence of at least one negative priority, only DNS servers from
           connections with the lowest priority value will be used. To avoid
           all DNS leaks, set the priority of the profile that should be used
           to the most negative value of all active connections profiles.

           Zero selects a globally configured default value. If the latter is
           missing or zero too, it defaults to 50 for VPNs (including
           WireGuard) and 100 for other connections.

           Note that the priority is to order DNS settings for multiple active
           connections. It does not disambiguate multiple DNS servers within
           the same connection profile.

           When multiple devices have configurations with the same priority,
           VPNs will be considered first, then devices with the best (lowest
           metric) default route and then all other devices.

           When using dns=default, servers with higher priority will be on top
           of resolv.conf. To prioritize a given server over another one
           within the same connection, just specify them in the desired order.
           Note that commonly the resolver tries name servers in
           /etc/resolv.conf in the order listed, proceeding with the next
           server in the list on failure. See for example the "rotate" option
           of the dns-options setting. If there are any negative DNS
           priorities, then only name servers from the devices with that
           lowest priority will be considered.

           When using a DNS resolver that supports Conditional Forwarding or
           Split DNS (with dns=dnsmasq or dns=systemd-resolved settings), each
           connection is used to query domains in its search list. The search
           domains determine which name servers to ask, and the DNS priority
           is used to prioritize name servers based on the domain. Queries for
           domains not present in any search list are routed through
           connections having the '~.' special wildcard domain, which is added
           automatically to connections with the default route (or can be
           added manually). When multiple connections specify the same domain,
           the one with the best priority (lowest numerical value) wins. If a
           sub domain is configured on another interface it will be accepted
           regardless the priority, unless parent domain on the other
           interface has a negative priority, which causes the sub domain to
           be shadowed. With Split DNS one can avoid undesired DNS leaks by
           properly configuring DNS priorities and the search domains, so that
           only name servers of the desired interface are configured.

           Format: int32

       dns-search
           List of DNS search domains. Domains starting with a tilde ('~') are
           considered 'routing' domains and are used only to decide the
           interface over which a query must be forwarded; they are not used
           to complete unqualified host names.

           When using a DNS plugin that supports Conditional Forwarding or
           Split DNS, then the search domains specify which name servers to
           query. This makes the behavior different from running with plain
           /etc/resolv.conf. For more information see also the dns-priority
           setting.

           When set on a profile that also enabled DHCP, the DNS search list
           received automatically (option 119 for DHCPv4 and option 24 for
           DHCPv6) gets merged with the manual list. This can be prevented by
           setting "ignore-auto-dns". Note that if no DNS searches are
           configured, the fallback will be derived from the domain from DHCP
           (option 15).

           Format: array of string

       gateway
           Alias: gw6

           The gateway associated with this configuration. This is only
           meaningful if "addresses" is also set.

           Setting the gateway causes NetworkManager to configure a standard
           default route with the gateway as next hop. This is ignored if
           "never-default" is set. An alternative is to configure the default
           route explicitly with a manual route and /0 as prefix length.

           Note that the gateway usually conflicts with routing that
           NetworkManager configures for WireGuard interfaces, so usually it
           should not be set in that case. See "ip4-auto-default-route".

           Format: string

       ignore-auto-dns
           When "method" is set to "auto" and this property to TRUE,
           automatically configured name servers and search domains are
           ignored and only name servers and search domains specified in the
           "dns" and "dns-search" properties, if any, are used.

           Format: boolean

       ignore-auto-routes
           When "method" is set to "auto" and this property to TRUE,
           automatically configured routes are ignored and only routes
           specified in the "routes" property, if any, are used.

           Format: boolean

       ip6-privacy
           Configure IPv6 Privacy Extensions for SLAAC, described in RFC4941.
           If enabled, it makes the kernel generate a temporary IPv6 address
           in addition to the public one generated from MAC address via
           modified EUI-64. This enhances privacy, but could cause problems in
           some applications, on the other hand. The permitted values are: -1:
           unknown, 0: disabled, 1: enabled (prefer public address), 2:
           enabled (prefer temporary addresses).

           Having a per-connection setting set to "-1" (unknown) means
           fallback to global configuration "ipv6.ip6-privacy".

           If also global configuration is unspecified or set to "-1",
           fallback to read "/proc/sys/net/ipv6/conf/default/use_tempaddr".

           Note that this setting is distinct from the Stable Privacy
           addresses that can be enabled with the "addr-gen-mode" property's
           "stable-privacy" setting as another way of avoiding host tracking
           with IPv6 addresses.

           Format: NMSettingIP6ConfigPrivacy (int32)

       may-fail
           If TRUE, allow overall network configuration to proceed even if the
           configuration specified by this property times out. Note that at
           least one IP configuration must succeed or overall network
           configuration will still fail. For example, in IPv6-only networks,
           setting this property to TRUE on the NMSettingIP4Config allows the
           overall network configuration to succeed if IPv4 configuration
           fails but IPv6 configuration completes successfully.

           Format: boolean

       method
           IP configuration method.

           NMSettingIP4Config and NMSettingIP6Config both support "disabled",
           "auto", "manual", and "link-local". See the subclass-specific
           documentation for other values.

           In general, for the "auto" method, properties such as "dns" and
           "routes" specify information that is added on to the information
           returned from automatic configuration. The "ignore-auto-routes" and
           "ignore-auto-dns" properties modify this behavior.

           For methods that imply no upstream network, such as "shared" or
           "link-local", these properties must be empty.

           For IPv4 method "shared", the IP subnet can be configured by adding
           one manual IPv4 address or otherwise 10.42.x.0/24 is chosen. Note
           that the shared method must be configured on the interface which
           shares the internet to a subnet, not on the uplink which is shared.

           Format: string

       mtu
           Maximum transmission unit size, in bytes. If zero (the default),
           the MTU is set automatically from router advertisements or is left
           equal to the link-layer MTU. If greater than the link-layer MTU, or
           greater than zero but less than the minimum IPv6 MTU of 1280, this
           value has no effect.

           Format: uint32

       never-default
           If TRUE, this connection will never be the default connection for
           this IP type, meaning it will never be assigned the default route
           by NetworkManager.

           Format: boolean

       ra-timeout
           A timeout for waiting Router Advertisements in seconds. If zero
           (the default), a globally configured default is used. If still
           unspecified, the timeout depends on the sysctl settings of the
           device.

           Set to 2147483647 (MAXINT32) for infinity.

           Format: int32

       replace-local-rule
           Connections will default to keep the autogenerated priority 0 local
           rule unless this setting is set to TRUE.

           Format: NMTernary (int32)

       required-timeout
           The minimum time interval in milliseconds for which dynamic IP
           configuration should be tried before the connection succeeds.

           This property is useful for example if both IPv4 and IPv6 are
           enabled and are allowed to fail. Normally the connection succeeds
           as soon as one of the two address families completes; by setting a
           required timeout for e.g. IPv4, one can ensure that even if IP6
           succeeds earlier than IPv4, NetworkManager waits some time for IPv4
           before the connection becomes active.

           Note that if "may-fail" is FALSE for the same address family, this
           property has no effect as NetworkManager needs to wait for the full
           DHCP timeout.

           A zero value means that no required timeout is present, -1 means
           the default value (either configuration ipvx.required-timeout
           override or zero).

           Format: int32

       route-metric
           The default metric for routes that don't explicitly specify a
           metric. The default value -1 means that the metric is chosen
           automatically based on the device type. The metric applies to
           dynamic routes, manual (static) routes that don't have an explicit
           metric setting, address prefix routes, and the default route. Note
           that for IPv6, the kernel accepts zero (0) but coerces it to 1024
           (user default). Hence, setting this property to zero effectively
           mean setting it to 1024. For IPv4, zero is a regular value for the
           metric.

           Format: int64

       route-table
           Enable policy routing (source routing) and set the routing table
           used when adding routes.

           This affects all routes, including device-routes, IPv4LL, DHCP,
           SLAAC, default-routes and static routes. But note that static
           routes can individually overwrite the setting by explicitly
           specifying a non-zero routing table.

           If the table setting is left at zero, it is eligible to be
           overwritten via global configuration. If the property is zero even
           after applying the global configuration value, policy routing is
           disabled for the address family of this connection.

           Policy routing disabled means that NetworkManager will add all
           routes to the main table (except static routes that explicitly
           configure a different table). Additionally, NetworkManager will not
           delete any extraneous routes from tables except the main table.
           This is to preserve backward compatibility for users who manage
           routing tables outside of NetworkManager.

           Format: uint32

       routes
           A list of IPv6 destination addresses, prefix length, optional IPv6
           next hop addresses, optional route metric, optional attribute. The
           valid syntax is: "ip[/prefix] [next-hop] [metric]
           [attribute=val]...[,ip[/prefix]...]".

           Various attributes are supported:

           •   "advmss" - an unsigned 32 bit integer.

           •   "cwnd" - an unsigned 32 bit integer.

           •   "from" - an IPv6 address with optional prefix. IPv6 only.

           •   "initcwnd" - an unsigned 32 bit integer.

           •   "initrwnd" - an unsigned 32 bit integer.

           •   "lock-advmss" - a boolean value.

           •   "lock-cwnd" - a boolean value.

           •   "lock-initcwnd" - a boolean value.

           •   "lock-initrwnd" - a boolean value.

           •   "lock-mtu" - a boolean value.

           •   "lock-window" - a boolean value.

           •   "mtu" - an unsigned 32 bit integer.

           •   "onlink" - a boolean value.

           •   "quickack" - a boolean value.

           •   "rto_min" - an unsigned 32 bit integer. The value is in
               milliseconds.

           •   "src" - an IPv6 address.

           •   "table" - an unsigned 32 bit integer. The default depends on
               ipv6.route-table.

           •   "type" - one of unicast, local, blackhole, unreachable,
               prohibit, throw. The default is unicast.

           •   "window" - an unsigned 32 bit integer.

           For details see also `man ip-route`.

           Format: a comma separated list of routes

       routing-rules
           A comma separated list of routing rules for policy routing. The
           format is based on ip rule add syntax and mostly compatible. One
           difference is that routing rules in NetworkManager always need a
           fixed priority.

           Example: priority 5 from 1:2:3::5/128 table 45

           Format: a comma separated list of routing rules

       token
           Configure the token for
           draft-chown-6man-tokenised-ipv6-identifiers-02 IPv6 tokenized
           interface identifiers. Useful with eui64 addr-gen-mode.

           Format: string

   ip-tunnel setting
       IP Tunneling Settings.

       Properties:

       encapsulation-limit
           How many additional levels of encapsulation are permitted to be
           prepended to packets. This property applies only to IPv6 tunnels.

           Format: uint32

       flags
           Tunnel flags. Currently, the following values are supported:
           NM_IP_TUNNEL_FLAG_IP6_IGN_ENCAP_LIMIT (0x1),
           NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_TCLASS (0x2),
           NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FLOWLABEL (0x4),
           NM_IP_TUNNEL_FLAG_IP6_MIP6_DEV (0x8),
           NM_IP_TUNNEL_FLAG_IP6_RCV_DSCP_COPY (0x10),
           NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FWMARK (0x20). They are valid only
           for IPv6 tunnels.

           Format: uint32

       flow-label
           The flow label to assign to tunnel packets. This property applies
           only to IPv6 tunnels.

           Format: uint32

       fwmark
           The fwmark value to assign to tunnel packets. This property can be
           set to a non zero value only on VTI and VTI6 tunnels.

           Format: uint32

       input-key
           The key used for tunnel input packets; the property is valid only
           for certain tunnel modes (GRE, IP6GRE). If empty, no key is used.

           Format: string

       local
           Alias: local

           The local endpoint of the tunnel; the value can be empty, otherwise
           it must contain an IPv4 or IPv6 address.

           Format: string

       mode
           Alias: mode

           The tunneling mode, for example NM_IP_TUNNEL_MODE_IPIP (1) or
           NM_IP_TUNNEL_MODE_GRE (2).

           Format: uint32

       mtu
           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple fragments.

           Format: uint32

       output-key
           The key used for tunnel output packets; the property is valid only
           for certain tunnel modes (GRE, IP6GRE). If empty, no key is used.

           Format: string

       parent
           Alias: dev

           If given, specifies the parent interface name or parent connection
           UUID the new device will be bound to so that tunneled packets will
           only be routed via that interface.

           Format: string

       path-mtu-discovery
           Whether to enable Path MTU Discovery on this tunnel.

           Format: boolean

       remote
           Alias: remote

           The remote endpoint of the tunnel; the value must contain an IPv4
           or IPv6 address.

           Format: string

       tos
           The type of service (IPv4) or traffic class (IPv6) field to be set
           on tunneled packets.

           Format: uint32

       ttl
           The TTL to assign to tunneled packets. 0 is a special value meaning
           that packets inherit the TTL value.

           Format: uint32

   macsec setting
       MACSec Settings.

       Properties:

       encrypt
           Alias: encrypt

           Whether the transmitted traffic must be encrypted.

           Format: boolean

       mka-cak
           Alias: cak

           The pre-shared CAK (Connectivity Association Key) for MACsec Key
           Agreement. Must be a string of 32 hexadecimal characters.

           Format: string

       mka-cak-flags
           Flags indicating how to handle the "mka-cak" property.

           Format: NMSettingSecretFlags (uint32)

       mka-ckn
           Alias: ckn

           The pre-shared CKN (Connectivity-association Key Name) for MACsec
           Key Agreement. Must be a string of hexadecimal characters with a
           even length between 2 and 64.

           Format: string

       mode
           Alias: mode

           Specifies how the CAK (Connectivity Association Key) for MKA
           (MACsec Key Agreement) is obtained.

           Format: int32

       parent
           Alias: dev

           If given, specifies the parent interface name or parent connection
           UUID from which this MACSEC interface should be created. If this
           property is not specified, the connection must contain an
           "802-3-ethernet" setting with a "mac-address" property.

           Format: string

       port
           Alias: port

           The port component of the SCI (Secure Channel Identifier), between
           1 and 65534.

           Format: int32

       send-sci
           Specifies whether the SCI (Secure Channel Identifier) is included
           in every packet.

           Format: boolean

       validation
           Specifies the validation mode for incoming frames.

           Format: int32

   macvlan setting
       MAC VLAN Settings.

       Properties:

       mode
           Alias: mode

           The macvlan mode, which specifies the communication mechanism
           between multiple macvlans on the same lower device.

           Format: uint32

       parent
           Alias: dev

           If given, specifies the parent interface name or parent connection
           UUID from which this MAC-VLAN interface should be created. If this
           property is not specified, the connection must contain an
           "802-3-ethernet" setting with a "mac-address" property.

           Format: string

       promiscuous
           Whether the interface should be put in promiscuous mode.

           Format: boolean

       tap
           Alias: tap

           Whether the interface should be a MACVTAP.

           Format: boolean

   match setting
       Match settings.

       Properties:

       driver
           A list of driver names to match. Each element is a shell wildcard
           pattern.

           See NMSettingMatch:interface-name for how special characters '|',
           '&', '!' and '\\' are used for optional and mandatory matches and
           inverting the pattern.

           Format: array of string

       interface-name
           A list of interface names to match. Each element is a shell
           wildcard pattern.

           An element can be prefixed with a pipe symbol (|) or an ampersand
           (&). The former means that the element is optional and the latter
           means that it is mandatory. If there are any optional elements,
           than the match evaluates to true if at least one of the optional
           element matches (logical OR). If there are any mandatory elements,
           then they all must match (logical AND). By default, an element is
           optional. This means that an element "foo" behaves the same as
           "|foo". An element can also be inverted with exclamation mark (!)
           between the pipe symbol (or the ampersand) and before the pattern.
           Note that "!foo" is a shortcut for the mandatory match "&!foo".
           Finally, a backslash can be used at the beginning of the element
           (after the optional special characters) to escape the start of the
           pattern. For example, "&\\!a" is an mandatory match for literally
           "!a".

           Format: array of string

       kernel-command-line
           A list of kernel command line arguments to match. This may be used
           to check whether a specific kernel command line option is set (or
           unset, if prefixed with the exclamation mark). The argument must
           either be a single word, or an assignment (i.e. two words, joined
           by "="). In the former case the kernel command line is searched for
           the word appearing as is, or as left hand side of an assignment. In
           the latter case, the exact assignment is looked for with right and
           left hand side matching. Wildcard patterns are not supported.

           See NMSettingMatch:interface-name for how special characters '|',
           '&', '!' and '\\' are used for optional and mandatory matches and
           inverting the match.

           Format: array of string

       path
           A list of paths to match against the ID_PATH udev property of
           devices. ID_PATH represents the topological persistent path of a
           device. It typically contains a subsystem string (pci, usb,
           platform, etc.) and a subsystem-specific identifier.

           For PCI devices the path has the form
           "pci-$domain:$bus:$device.$function", where each variable is an
           hexadecimal value; for example "pci-0000:0a:00.0".

           The path of a device can be obtained with "udevadm info
           /sys/class/net/$dev | grep ID_PATH=" or by looking at the "path"
           property exported by NetworkManager ("nmcli -f general.path device
           show $dev").

           Each element of the list is a shell wildcard pattern.

           See NMSettingMatch:interface-name for how special characters '|',
           '&', '!' and '\\' are used for optional and mandatory matches and
           inverting the pattern.

           Format: array of string

   802-11-olpc-mesh setting
       Alias: olpc-mesh

       OLPC Wireless Mesh Settings.

       Properties:

       channel
           Alias: channel

           Channel on which the mesh network to join is located.

           Format: uint32

       dhcp-anycast-address
           Alias: dhcp-anycast

           Anycast DHCP MAC address used when requesting an IP address via
           DHCP. The specific anycast address used determines which DHCP
           server class answers the request.

           This is currently only implemented by dhclient DHCP plugin.

           Format: byte array

       ssid
           Alias: ssid

           SSID of the mesh network to join.

           Format: byte array

   ovs-bridge setting
       OvsBridge Link Settings.

       Properties:

       datapath-type
           The data path type. One of "system", "netdev" or empty.

           Format: string

       fail-mode
           The bridge failure mode. One of "secure", "standalone" or empty.

           Format: string

       mcast-snooping-enable
           Enable or disable multicast snooping.

           Format: boolean

       rstp-enable
           Enable or disable RSTP.

           Format: boolean

       stp-enable
           Enable or disable STP.

           Format: boolean

   ovs-dpdk setting
       OvsDpdk Link Settings.

       Properties:

       devargs
           Open vSwitch DPDK device arguments.

           Format: string

       n-rxq
           Open vSwitch DPDK number of rx queues. Defaults to zero which means
           to leave the parameter in OVS unspecified and effectively
           configures one queue.

           Format: uint32

       n-rxq-desc
           The rx queue size (number of rx descriptors) for DPDK ports. Must
           be zero or a power of 2 between 1 and 4096, and supported by the
           hardware. Defaults to zero which means to leave the parameter in
           OVS unspecified and effectively configures 2048 descriptors.

           Format: uint32

       n-txq-desc
           The tx queue size (number of tx descriptors) for DPDK ports. Must
           be zero or a power of 2 between 1 and 4096, and supported by the
           hardware. Defaults to zero which means to leave the parameter in
           OVS unspecified and effectively configures 2048 descriptors.

           Format: uint32

   ovs-interface setting
       Open vSwitch Interface Settings.

       Properties:

       ofport-request
           Open vSwitch openflow port number. Defaults to zero which means
           that port number will not be specified and it will be chosen
           randomly by ovs. OpenFlow ports are the network interfaces for
           passing packets between OpenFlow processing and the rest of the
           network. OpenFlow switches connect logically to each other via
           their OpenFlow ports.

           Format: uint32

       type
           The interface type. Either "internal", "system", "patch", "dpdk",
           or empty.

           Format: string

   ovs-patch setting
       OvsPatch Link Settings.

       Properties:

       peer
           Specifies the name of the interface for the other side of the
           patch. The patch on the other side must also set this interface as
           peer.

           Format: string

   ovs-port setting
       OvsPort Link Settings.

       Properties:

       bond-downdelay
           The time port must be inactive in order to be considered down.

           Format: uint32

       bond-mode
           Bonding mode. One of "active-backup", "balance-slb", or
           "balance-tcp".

           Format: string

       bond-updelay
           The time port must be active before it starts forwarding traffic.

           Format: uint32

       lacp
           LACP mode. One of "active", "off", or "passive".

           Format: string

       tag
           The VLAN tag in the range 0-4095.

           Format: uint32

       trunks
           A list of VLAN ranges that this port trunks.

           The property is valid only for ports with mode "trunk",
           "native-tagged", or "native-untagged port". If it is empty, the
           port trunks all VLANs.

           Format: array of vardict

       vlan-mode
           The VLAN mode. One of "access", "native-tagged", "native-untagged",
           "trunk", "dot1q-tunnel" or unset.

           Format: string

   ppp setting
       Point-to-Point Protocol Settings.

       Properties:

       baud
           If non-zero, instruct pppd to set the serial port to the specified
           baudrate. This value should normally be left as 0 to automatically
           choose the speed.

           Format: uint32

       crtscts
           If TRUE, specify that pppd should set the serial port to use
           hardware flow control with RTS and CTS signals. This value should
           normally be set to FALSE.

           Format: boolean

       lcp-echo-failure
           If non-zero, instruct pppd to presume the connection to the peer
           has failed if the specified number of LCP echo-requests go
           unanswered by the peer. The "lcp-echo-interval" property must also
           be set to a non-zero value if this property is used.

           Format: uint32

       lcp-echo-interval
           If non-zero, instruct pppd to send an LCP echo-request frame to the
           peer every n seconds (where n is the specified value). Note that
           some PPP peers will respond to echo requests and some will not, and
           it is not possible to autodetect this.

           Format: uint32

       mppe-stateful
           If TRUE, stateful MPPE is used. See pppd documentation for more
           information on stateful MPPE.

           Format: boolean

       mru
           If non-zero, instruct pppd to request that the peer send packets no
           larger than the specified size. If non-zero, the MRU should be
           between 128 and 16384.

           Format: uint32

       mtu
           If non-zero, instruct pppd to send packets no larger than the
           specified size.

           Format: uint32

       no-vj-comp
           If TRUE, Van Jacobsen TCP header compression will not be requested.

           Format: boolean

       noauth
           If TRUE, do not require the other side (usually the PPP server) to
           authenticate itself to the client. If FALSE, require authentication
           from the remote side. In almost all cases, this should be TRUE.

           Format: boolean

       nobsdcomp
           If TRUE, BSD compression will not be requested.

           Format: boolean

       nodeflate
           If TRUE, "deflate" compression will not be requested.

           Format: boolean

       refuse-chap
           If TRUE, the CHAP authentication method will not be used.

           Format: boolean

       refuse-eap
           If TRUE, the EAP authentication method will not be used.

           Format: boolean

       refuse-mschap
           If TRUE, the MSCHAP authentication method will not be used.

           Format: boolean

       refuse-mschapv2
           If TRUE, the MSCHAPv2 authentication method will not be used.

           Format: boolean

       refuse-pap
           If TRUE, the PAP authentication method will not be used.

           Format: boolean

       require-mppe
           If TRUE, MPPE (Microsoft Point-to-Point Encryption) will be
           required for the PPP session. If either 64-bit or 128-bit MPPE is
           not available the session will fail. Note that MPPE is not used on
           mobile broadband connections.

           Format: boolean

       require-mppe-128
           If TRUE, 128-bit MPPE (Microsoft Point-to-Point Encryption) will be
           required for the PPP session, and the "require-mppe" property must
           also be set to TRUE. If 128-bit MPPE is not available the session
           will fail.

           Format: boolean

   pppoe setting
       PPP-over-Ethernet Settings.

       Properties:

       parent
           Alias: parent

           If given, specifies the parent interface name on which this PPPoE
           connection should be created. If this property is not specified,
           the connection is activated on the interface specified in
           "interface-name" of NMSettingConnection.

           Format: string

       password
           Alias: password

           Password used to authenticate with the PPPoE service.

           Format: string

       password-flags
           Flags indicating how to handle the "password" property.

           Format: NMSettingSecretFlags (uint32)

       service
           Alias: service

           If specified, instruct PPPoE to only initiate sessions with access
           concentrators that provide the specified service. For most
           providers, this should be left blank. It is only required if there
           are multiple access concentrators or a specific service is known to
           be required.

           Format: string

       username
           Alias: username

           Username used to authenticate with the PPPoE service.

           Format: string

   proxy setting
       WWW Proxy Settings.

       Properties:

       browser-only
           Alias: browser-only

           Whether the proxy configuration is for browser only.

           Format: boolean

       method
           Alias: method

           Method for proxy configuration, Default is
           NM_SETTING_PROXY_METHOD_NONE (0)

           Format: int32

       pac-script
           Alias: pac-script

           PAC script for the connection. This is an UTF-8 encoded javascript
           code that defines a FindProxyForURL() function.

           Format: string

       pac-url
           Alias: pac-url

           PAC URL for obtaining PAC file.

           Format: string

   serial setting
       Serial Link Settings.

       Properties:

       baud
           Speed to use for communication over the serial port. Note that this
           value usually has no effect for mobile broadband modems as they
           generally ignore speed settings and use the highest available
           speed.

           Format: uint32

       bits
           Byte-width of the serial communication. The 8 in "8n1" for example.

           Format: uint32

       parity
           Parity setting of the serial port.

           Format: NMSettingSerialParity (byte)

       send-delay
           Time to delay between each byte sent to the modem, in microseconds.

           Format: uint64

       stopbits
           Number of stop bits for communication on the serial port. Either 1
           or 2. The 1 in "8n1" for example.

           Format: uint32

   sriov setting
       SR-IOV settings.

       Properties:

       autoprobe-drivers
           Whether to autoprobe virtual functions by a compatible driver.

           If set to NM_TERNARY_TRUE (1), the kernel will try to bind VFs to a
           compatible driver and if this succeeds a new network interface will
           be instantiated for each VF.

           If set to NM_TERNARY_FALSE (0), VFs will not be claimed and no
           network interfaces will be created for them.

           When set to NM_TERNARY_DEFAULT (-1), the global default is used; in
           case the global default is unspecified it is assumed to be
           NM_TERNARY_TRUE (1).

           Format: NMTernary (int32)

       total-vfs
           The total number of virtual functions to create.

           Note that when the sriov setting is present NetworkManager enforces
           the number of virtual functions on the interface (also when it is
           zero) during activation and resets it upon deactivation. To prevent
           any changes to SR-IOV parameters don't add a sriov setting to the
           connection.

           Format: uint32

       vfs
           Array of virtual function descriptors.

           Each VF descriptor is a dictionary mapping attribute names to
           GVariant values. The 'index' entry is mandatory for each VF.

           When represented as string a VF is in the form:

           "INDEX [ATTR=VALUE[ ATTR=VALUE]...]".

           for example:

           "2 mac=00:11:22:33:44:55 spoof-check=true".

           Multiple VFs can be specified using a comma as separator.
           Currently, the following attributes are supported: mac,
           spoof-check, trust, min-tx-rate, max-tx-rate, vlans.

           The "vlans" attribute is represented as a semicolon-separated list
           of VLAN descriptors, where each descriptor has the form

           "ID[.PRIORITY[.PROTO]]".

           PROTO can be either 'q' for 802.1Q (the default) or 'ad' for
           802.1ad.

           Format: array of vardict

   tc setting
       Linux Traffic Control Settings.

       Properties:

       qdiscs
           Array of TC queueing disciplines. qdisc is a basic block in the
           Linux traffic control subsystem

           Each qdisc can be specified by the following attributes:

           handle HANDLE
               specifies the qdisc handle. A qdisc, which potentially can have
               children, gets assigned a major number, called a 'handle',
               leaving the minor number namespace available for classes. The
               handle is expressed as '10:'. It is customary to explicitly
               assign a handle to qdiscs expected to have children.

           parent HANDLE
               specifies the handle of the parent qdisc the current qdisc must
               be attached to.

           root
               specifies that the qdisc is attached to the root of device.

           KIND
               this is the qdisc kind. NetworkManager currently supports the
               following kinds: fq_codel, sfq, tbf. Each qdisc kind has a
               different set of parameters, described below. There are also
               some kinds like pfifo, pfifo_fast, prio supported by
               NetworkManager but their parameters are not supported by
               NetworkManager.

           Parameters for 'fq_codel':

           limit U32
               the hard limit on the real queue size. When this limit is
               reached, incoming packets are dropped. Default is 10240
               packets.

           memory_limit U32
               sets a limit on the total number of bytes that can be queued in
               this FQ-CoDel instance. The lower of the packet limit of the
               limit parameter and the memory limit will be enforced. Default
               is 32 MB.

           flows U32
               the number of flows into which the incoming packets are
               classified. Due to the stochastic nature of hashing, multiple
               flows may end up being hashed into the same slot. Newer flows
               have priority over older ones. This parameter can be set only
               at load time since memory has to be allocated for the hash
               table. Default value is 1024.

           target U32
               the acceptable minimum standing/persistent queue delay. This
               minimum delay is identified by tracking the local minimum queue
               delay that packets experience. The unit of measurement is
               microsecond(us). Default value is 5ms.

           interval U32
               used to ensure that the measured minimum delay does not become
               too stale. The minimum delay must be experienced in the last
               epoch of length .B interval. It should be set on the order of
               the worst-case RTT through the bottleneck to give endpoints
               sufficient time to react. Default value is 100ms.

           quantum U32
               the number of bytes used as 'deficit' in the fair queuing
               algorithm. Default is set to 1514 bytes which corresponds to
               the Ethernet MTU plus the hardware header length of 14 bytes.

           ecn BOOL
               can be used to mark packets instead of dropping them. ecn is
               turned on by default.

           ce_threshold U32
               sets a threshold above which all packets are marked with ECN
               Congestion Experienced. This is useful for DCTCP-style
               congestion control algorithms that require marking at very
               shallow queueing thresholds.

           Parameters for 'sfq':

           divisor U32
               can be used to set a different hash table size, available from
               kernel 2.6.39 onwards. The specified divisor must be a power of
               two and cannot be larger than 65536. Default value: 1024.

           limit U32
               Upper limit of the SFQ. Can be used to reduce the default
               length of 127 packets.

           depth U32
               Limit of packets per flow. Default to 127 and can be lowered.

           perturb_period U32
               Interval in seconds for queue algorithm perturbation. Defaults
               to 0, which means that no perturbation occurs. Do not set too
               low for each perturbation may cause some packet reordering or
               losses. Advised value: 60 This value has no effect when
               external flow classification is used. Its better to increase
               divisor value to lower risk of hash collisions.

           quantum U32
               Amount of bytes a flow is allowed to dequeue during a round of
               the round robin process. Defaults to the MTU of the interface
               which is also the advised value and the minimum value.

           flows U32
               Default value is 127.

           Parameters for 'tbf':

           rate U64
               Bandwidth or rate. These parameters accept a floating point
               number, possibly followed by either a unit (both SI and IEC
               units supported), or a float followed by a percent character to
               specify the rate as a percentage of the device's speed.

           burst U32
               Also known as buffer or maxburst. Size of the bucket, in bytes.
               This is the maximum amount of bytes that tokens can be
               available for instantaneously. In general, larger shaping rates
               require a larger buffer. For 10mbit/s on Intel, you need at
               least 10kbyte buffer if you want to reach your configured rate!

               If your buffer is too small, packets may be dropped because
               more tokens arrive per timer tick than fit in your bucket. The
               minimum buffer size can be calculated by dividing the rate by
               HZ.

               Token usage calculations are performed using a table which by
               default has a resolution of 8 packets. This resolution can be
               changed by specifying the cell size with the burst. For
               example, to specify a 6000 byte buffer with a 16 byte cell
               size, set a burst of 6000/16. You will probably never have to
               set this. Must be an integral power of 2.

           limit U32
               Limit is the number of bytes that can be queued waiting for
               tokens to become available.

           latency U32
               specifies the maximum amount of time a packet can sit in the
               TBF. The latency calculation takes into account the size of the
               bucket, the rate and possibly the peakrate (if set). The
               latency and limit are mutually exclusive.

           Format: GPtrArray(NMTCQdisc)

       tfilters
           Array of TC traffic filters. Traffic control can manage the packet
           content during classification by using filters.

           Each tfilters can be specified by the following attributes:

           handle HANDLE
               specifies the tfilters handle. A filter is used by a classful
               qdisc to determine in which class a packet will be enqueued. It
               is important to notice that filters reside within qdiscs.
               Therefore, see qdiscs handle for detailed information.

           parent HANDLE
               specifies the handle of the parent qdisc the current qdisc must
               be attached to.

           root
               specifies that the qdisc is attached to the root of device.

           KIND
               this is the tfilters kind. NetworkManager currently supports
               following kinds: mirred, simple. Each filter kind has a
               different set of actions, described below. There are also some
               other kinds like matchall, basic, u32 supported by
               NetworkManager.

           Actions for 'mirred':

           egress bool
               Define whether the packet should exit from the interface.

           ingress bool
               Define whether the packet should come into the interface.

           mirror bool
               Define whether the packet should be copied to the destination
               space.

           redirect bool
               Define whether the packet should be moved to the destination
               space.

           Action for 'simple':

           sdata char[32]
               The actual string to print.

           Format: GPtrArray(NMTCTfilter)

   team setting
       Teaming Settings.

       Properties:

       config
           Alias: config

           The JSON configuration for the team network interface. The property
           should contain raw JSON configuration data suitable for teamd,
           because the value is passed directly to teamd. If not specified,
           the default configuration is used. See man teamd.conf for the
           format details.

           Format: string

       link-watchers
           Link watchers configuration for the connection: each link watcher
           is defined by a dictionary, whose keys depend upon the selected
           link watcher. Available link watchers are 'ethtool', 'nsna_ping'
           and 'arp_ping' and it is specified in the dictionary with the key
           'name'. Available keys are: ethtool: 'delay-up', 'delay-down',
           'init-wait'; nsna_ping: 'init-wait', 'interval', 'missed-max',
           'target-host'; arp_ping: all the ones in nsna_ping and
           'source-host', 'validate-active', 'validate-inactive',
           'send-always'. See teamd.conf man for more details.

           Format: array of vardict

       mcast-rejoin-count
           Corresponds to the teamd mcast_rejoin.count.

           Format: int32

       mcast-rejoin-interval
           Corresponds to the teamd mcast_rejoin.interval.

           Format: int32

       notify-peers-count
           Corresponds to the teamd notify_peers.count.

           Format: int32

       notify-peers-interval
           Corresponds to the teamd notify_peers.interval.

           Format: int32

       runner
           Corresponds to the teamd runner.name. Permitted values are:
           "roundrobin", "broadcast", "activebackup", "loadbalance", "lacp",
           "random".

           Format: string

       runner-active
           Corresponds to the teamd runner.active.

           Format: boolean

       runner-agg-select-policy
           Corresponds to the teamd runner.agg_select_policy.

           Format: string

       runner-fast-rate
           Corresponds to the teamd runner.fast_rate.

           Format: boolean

       runner-hwaddr-policy
           Corresponds to the teamd runner.hwaddr_policy.

           Format: string

       runner-min-ports
           Corresponds to the teamd runner.min_ports.

           Format: int32

       runner-sys-prio
           Corresponds to the teamd runner.sys_prio.

           Format: int32

       runner-tx-balancer
           Corresponds to the teamd runner.tx_balancer.name.

           Format: string

       runner-tx-balancer-interval
           Corresponds to the teamd runner.tx_balancer.interval.

           Format: int32

       runner-tx-hash
           Corresponds to the teamd runner.tx_hash.

           Format: array of string

   team-port setting
       Team Port Settings.

       Properties:

       config
           Alias: config

           The JSON configuration for the team port. The property should
           contain raw JSON configuration data suitable for teamd, because the
           value is passed directly to teamd. If not specified, the default
           configuration is used. See man teamd.conf for the format details.

           Format: string

       lacp-key
           Corresponds to the teamd ports.PORTIFNAME.lacp_key.

           Format: int32

       lacp-prio
           Corresponds to the teamd ports.PORTIFNAME.lacp_prio.

           Format: int32

       link-watchers
           Link watchers configuration for the connection: each link watcher
           is defined by a dictionary, whose keys depend upon the selected
           link watcher. Available link watchers are 'ethtool', 'nsna_ping'
           and 'arp_ping' and it is specified in the dictionary with the key
           'name'. Available keys are: ethtool: 'delay-up', 'delay-down',
           'init-wait'; nsna_ping: 'init-wait', 'interval', 'missed-max',
           'target-host'; arp_ping: all the ones in nsna_ping and
           'source-host', 'validate-active', 'validate-inactive',
           'send-always'. See teamd.conf man for more details.

           Format: array of vardict

       prio
           Corresponds to the teamd ports.PORTIFNAME.prio.

           Format: int32

       queue-id
           Corresponds to the teamd ports.PORTIFNAME.queue_id. When set to -1
           means the parameter is skipped from the json config.

           Format: int32

       sticky
           Corresponds to the teamd ports.PORTIFNAME.sticky.

           Format: boolean

   tun setting
       Tunnel Settings.

       Properties:

       group
           Alias: group

           The group ID which will own the device. If set to NULL everyone
           will be able to use the device.

           Format: string

       mode
           Alias: mode

           The operating mode of the virtual device. Allowed values are
           NM_SETTING_TUN_MODE_TUN (1) to create a layer 3 device and
           NM_SETTING_TUN_MODE_TAP (2) to create an Ethernet-like layer 2 one.

           Format: uint32

       multi-queue
           Alias: multi-queue

           If the property is set to TRUE, the interface will support multiple
           file descriptors (queues) to parallelize packet sending or
           receiving. Otherwise, the interface will only support a single
           queue.

           Format: boolean

       owner
           Alias: owner

           The user ID which will own the device. If set to NULL everyone will
           be able to use the device.

           Format: string

       pi
           Alias: pi

           If TRUE the interface will prepend a 4 byte header describing the
           physical interface to the packets.

           Format: boolean

       vnet-hdr
           Alias: vnet-hdr

           If TRUE the IFF_VNET_HDR the tunnel packets will include a virtio
           network header.

           Format: boolean

   vlan setting
       VLAN Settings.

       Properties:

       egress-priority-map
           Alias: egress

           For outgoing packets, a list of mappings from Linux SKB priorities
           to 802.1p priorities. The mapping is given in the format "from:to"
           where both "from" and "to" are unsigned integers, ie "7:3".

           Format: array of string

       flags
           Alias: flags

           One or more flags which control the behavior and features of the
           VLAN interface. Flags include NM_VLAN_FLAG_REORDER_HEADERS (0x1)
           (reordering of output packet headers), NM_VLAN_FLAG_GVRP (0x2) (use
           of the GVRP protocol), and NM_VLAN_FLAG_LOOSE_BINDING (0x4) (loose
           binding of the interface to its master device's operating state).
           NM_VLAN_FLAG_MVRP (0x8) (use of the MVRP protocol).

           The default value of this property is NM_VLAN_FLAG_REORDER_HEADERS,
           but it used to be 0. To preserve backward compatibility, the
           default-value in the D-Bus API continues to be 0 and a missing
           property on D-Bus is still considered as 0.

           Format: NMVlanFlags (uint32)

       id
           Alias: id

           The VLAN identifier that the interface created by this connection
           should be assigned. The valid range is from 0 to 4094, without the
           reserved id 4095.

           Format: uint32

       ingress-priority-map
           Alias: ingress

           For incoming packets, a list of mappings from 802.1p priorities to
           Linux SKB priorities. The mapping is given in the format "from:to"
           where both "from" and "to" are unsigned integers, ie "7:3".

           Format: array of string

       parent
           Alias: dev

           If given, specifies the parent interface name or parent connection
           UUID from which this VLAN interface should be created. If this
           property is not specified, the connection must contain an
           "802-3-ethernet" setting with a "mac-address" property.

           Format: string

       protocol
           Specifies the VLAN protocol to use for encapsulation.

           Supported values are: '802.1Q', '802.1ad'. If not specified the
           default value is '802.1Q'.

           Format: string

   vpn setting
       VPN Settings.

       Properties:

       data
           Dictionary of key/value pairs of VPN plugin specific data. Both
           keys and values must be strings.

           Format: dict of string to string

       persistent
           If the VPN service supports persistence, and this property is TRUE,
           the VPN will attempt to stay connected across link changes and
           outages, until explicitly disconnected.

           Format: boolean

       secrets
           Dictionary of key/value pairs of VPN plugin specific secrets like
           passwords or private keys. Both keys and values must be strings.

           Format: dict of string to string

       service-type
           Alias: vpn-type

           D-Bus service name of the VPN plugin that this setting uses to
           connect to its network. i.e. org.freedesktop.NetworkManager.vpnc
           for the vpnc plugin.

           Format: string

       timeout
           Timeout for the VPN service to establish the connection. Some
           services may take quite a long time to connect. Value of 0 means a
           default timeout, which is 60 seconds (unless overridden by
           vpn.timeout in configuration file). Values greater than zero mean
           timeout in seconds.

           Format: uint32

       user-name
           Alias: user

           If the VPN connection requires a user name for authentication, that
           name should be provided here. If the connection is available to
           more than one user, and the VPN requires each user to supply a
           different name, then leave this property empty. If this property is
           empty, NetworkManager will automatically supply the username of the
           user which requested the VPN connection.

           Format: string

   vrf setting
       VRF settings.

       Properties:

       table
           Alias: table

           The routing table for this VRF.

           Format: uint32

   vxlan setting
       VXLAN Settings.

       Properties:

       ageing
           Specifies the lifetime in seconds of FDB entries learnt by the
           kernel.

           Format: uint32

       destination-port
           Alias: destination-port

           Specifies the UDP destination port to communicate to the remote
           VXLAN tunnel endpoint.

           Format: uint32

       id
           Alias: id

           Specifies the VXLAN Network Identifier (or VXLAN Segment
           Identifier) to use.

           Format: uint32

       l2-miss
           Specifies whether netlink LL ADDR miss notifications are generated.

           Format: boolean

       l3-miss
           Specifies whether netlink IP ADDR miss notifications are generated.

           Format: boolean

       learning
           Specifies whether unknown source link layer addresses and IP
           addresses are entered into the VXLAN device forwarding database.

           Format: boolean

       limit
           Specifies the maximum number of FDB entries. A value of zero means
           that the kernel will store unlimited entries.

           Format: uint32

       local
           Alias: local

           If given, specifies the source IP address to use in outgoing
           packets.

           Format: string

       parent
           Alias: dev

           If given, specifies the parent interface name or parent connection
           UUID.

           Format: string

       proxy
           Specifies whether ARP proxy is turned on.

           Format: boolean

       remote
           Alias: remote

           Specifies the unicast destination IP address to use in outgoing
           packets when the destination link layer address is not known in the
           VXLAN device forwarding database, or the multicast IP address to
           join.

           Format: string

       rsc
           Specifies whether route short circuit is turned on.

           Format: boolean

       source-port-max
           Alias: source-port-max

           Specifies the maximum UDP source port to communicate to the remote
           VXLAN tunnel endpoint.

           Format: uint32

       source-port-min
           Alias: source-port-min

           Specifies the minimum UDP source port to communicate to the remote
           VXLAN tunnel endpoint.

           Format: uint32

       tos
           Specifies the TOS value to use in outgoing packets.

           Format: uint32

       ttl
           Specifies the time-to-live value to use in outgoing packets.

           Format: uint32

   wifi-p2p setting
       Wi-Fi P2P Settings.

       Properties:

       peer
           Alias: peer

           The P2P device that should be connected to. Currently, this is the
           only way to create or join a group.

           Format: string

       wfd-ies
           The Wi-Fi Display (WFD) Information Elements (IEs) to set.

           Wi-Fi Display requires a protocol specific information element to
           be set in certain Wi-Fi frames. These can be specified here for the
           purpose of establishing a connection. This setting is only useful
           when implementing a Wi-Fi Display client.

           Format: byte array

       wps-method
           Flags indicating which mode of WPS is to be used.

           There's little point in changing the default setting as
           NetworkManager will automatically determine the best method to use.

           Format: uint32

   wimax setting
       WiMax Settings.

       Properties:

       mac-address
           Alias: mac

           If specified, this connection will only apply to the WiMAX device
           whose MAC address matches. This property does not change the MAC
           address of the device (known as MAC spoofing).

           This property is deprecated since version 1.2. WiMAX is no longer
           supported.

           Format: byte array

       network-name
           Alias: nsp

           Network Service Provider (NSP) name of the WiMAX network this
           connection should use.

           This property is deprecated since version 1.2. WiMAX is no longer
           supported.

           Format: string

   802-3-ethernet setting
       Alias: ethernet

       Wired Ethernet Settings.

       Properties:

       accept-all-mac-addresses
           When TRUE, setup the interface to accept packets for all MAC
           addresses. This is enabling the kernel interface flag IFF_PROMISC.
           When FALSE, the interface will only accept the packets with the
           interface destination mac address or broadcast.

           Format: NMTernary (int32)

       auto-negotiate
           When TRUE, enforce auto-negotiation of speed and duplex mode. If
           "speed" and "duplex" properties are both specified, only that
           single mode will be advertised and accepted during the link
           auto-negotiation process: this works only for BASE-T 802.3
           specifications and is useful for enforcing gigabits modes, as in
           these cases link negotiation is mandatory. When FALSE, "speed" and
           "duplex" properties should be both set or link configuration will
           be skipped.

           Format: boolean

       cloned-mac-address
           Alias: cloned-mac

           If specified, request that the device use this MAC address instead.
           This is known as MAC cloning or spoofing.

           Beside explicitly specifying a MAC address, the special values
           "preserve", "permanent", "random" and "stable" are supported.
           "preserve" means not to touch the MAC address on activation.
           "permanent" means to use the permanent hardware address if the
           device has one (otherwise this is treated as "preserve"). "random"
           creates a random MAC address on each connect. "stable" creates a
           hashed MAC address based on connection.stable-id and a machine
           dependent key.

           If unspecified, the value can be overwritten via global defaults,
           see manual of NetworkManager.conf. If still unspecified, it
           defaults to "preserve" (older versions of NetworkManager may use a
           different default value).

           On D-Bus, this field is expressed as "assigned-mac-address" or the
           deprecated "cloned-mac-address".

           Format: byte array

       duplex
           When a value is set, either "half" or "full", configures the device
           to use the specified duplex mode. If "auto-negotiate" is "yes" the
           specified duplex mode will be the only one advertised during link
           negotiation: this works only for BASE-T 802.3 specifications and is
           useful for enforcing gigabits modes, as in these cases link
           negotiation is mandatory. If the value is unset (the default), the
           link configuration will be either skipped (if "auto-negotiate" is
           "no", the default) or will be auto-negotiated (if "auto-negotiate"
           is "yes") and the local device will advertise all the supported
           duplex modes. Must be set together with the "speed" property if
           specified. Before specifying a duplex mode be sure your device
           supports it.

           Format: string

       generate-mac-address-mask
           With "cloned-mac-address" setting "random" or "stable", by default
           all bits of the MAC address are scrambled and a
           locally-administered, unicast MAC address is created. This property
           allows to specify that certain bits are fixed. Note that the least
           significant bit of the first MAC address will always be unset to
           create a unicast MAC address.

           If the property is NULL, it is eligible to be overwritten by a
           default connection setting. If the value is still NULL or an empty
           string, the default is to create a locally-administered, unicast
           MAC address.

           If the value contains one MAC address, this address is used as
           mask. The set bits of the mask are to be filled with the current
           MAC address of the device, while the unset bits are subject to
           randomization. Setting "FE:FF:FF:00:00:00" means to preserve the
           OUI of the current MAC address and only randomize the lower 3 bytes
           using the "random" or "stable" algorithm.

           If the value contains one additional MAC address after the mask,
           this address is used instead of the current MAC address to fill the
           bits that shall not be randomized. For example, a value of
           "FE:FF:FF:00:00:00 68:F7:28:00:00:00" will set the OUI of the MAC
           address to 68:F7:28, while the lower bits are randomized. A value
           of "02:00:00:00:00:00 00:00:00:00:00:00" will create a fully
           scrambled globally-administered, burned-in MAC address.

           If the value contains more than one additional MAC addresses, one
           of them is chosen randomly. For example, "02:00:00:00:00:00
           00:00:00:00:00:00 02:00:00:00:00:00" will create a fully scrambled
           MAC address, randomly locally or globally administered.

           Format: string

       mac-address
           Alias: mac

           If specified, this connection will only apply to the Ethernet
           device whose permanent MAC address matches. This property does not
           change the MAC address of the device (i.e. MAC spoofing).

           Format: byte array

       mac-address-blacklist
           If specified, this connection will never apply to the Ethernet
           device whose permanent MAC address matches an address in the list.
           Each MAC address is in the standard hex-digits-and-colons notation
           (00:11:22:33:44:55).

           Format: array of string

       mtu
           Alias: mtu

           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple Ethernet frames.

           Format: uint32

       port
           Specific port type to use if the device supports multiple
           attachment methods. One of "tp" (Twisted Pair), "aui" (Attachment
           Unit Interface), "bnc" (Thin Ethernet) or "mii" (Media Independent
           Interface). If the device supports only one port type, this setting
           is ignored.

           Format: string

       s390-nettype
           s390 network device type; one of "qeth", "lcs", or "ctc",
           representing the different types of virtual network devices
           available on s390 systems.

           Format: string

       s390-options
           Dictionary of key/value pairs of s390-specific device options. Both
           keys and values must be strings. Allowed keys include "portno",
           "layer2", "portname", "protocol", among others. Key names must
           contain only alphanumeric characters (ie, [a-zA-Z0-9]).

           Currently, NetworkManager itself does nothing with this
           information. However, s390utils ships a udev rule which parses this
           information and applies it to the interface.

           Format: dict of string to string

       s390-subchannels
           Identifies specific subchannels that this network device uses for
           communication with z/VM or s390 host. Like the "mac-address"
           property for non-z/VM devices, this property can be used to ensure
           this connection only applies to the network device that uses these
           subchannels. The list should contain exactly 3 strings, and each
           string may only be composed of hexadecimal characters and the
           period (.) character.

           Format: array of string

       speed
           When a value greater than 0 is set, configures the device to use
           the specified speed. If "auto-negotiate" is "yes" the specified
           speed will be the only one advertised during link negotiation: this
           works only for BASE-T 802.3 specifications and is useful for
           enforcing gigabit speeds, as in this case link negotiation is
           mandatory. If the value is unset (0, the default), the link
           configuration will be either skipped (if "auto-negotiate" is "no",
           the default) or will be auto-negotiated (if "auto-negotiate" is
           "yes") and the local device will advertise all the supported
           speeds. In Mbit/s, ie 100 == 100Mbit/s. Must be set together with
           the "duplex" property when non-zero. Before specifying a speed
           value be sure your device supports it.

           Format: uint32

       wake-on-lan
           The NMSettingWiredWakeOnLan options to enable. Not all devices
           support all options. May be any combination of
           NM_SETTING_WIRED_WAKE_ON_LAN_PHY (0x2),
           NM_SETTING_WIRED_WAKE_ON_LAN_UNICAST (0x4),
           NM_SETTING_WIRED_WAKE_ON_LAN_MULTICAST (0x8),
           NM_SETTING_WIRED_WAKE_ON_LAN_BROADCAST (0x10),
           NM_SETTING_WIRED_WAKE_ON_LAN_ARP (0x20),
           NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC (0x40) or the special values
           NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT (0x1) (to use global settings)
           and NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE (0x8000) (to disable
           management of Wake-on-LAN in NetworkManager).

           Format: uint32

       wake-on-lan-password
           If specified, the password used with magic-packet-based
           Wake-on-LAN, represented as an Ethernet MAC address. If NULL, no
           password will be required.

           Format: string

   wireguard setting
       WireGuard Settings.

       Properties:

       fwmark
           The use of fwmark is optional and is by default off. Setting it to
           0 disables it. Otherwise, it is a 32-bit fwmark for outgoing
           packets.

           Note that "ip4-auto-default-route" or "ip6-auto-default-route"
           enabled, implies to automatically choose a fwmark.

           Format: uint32

       ip4-auto-default-route
           Whether to enable special handling of the IPv4 default route. If
           enabled, the IPv4 default route from wireguard.peer-routes will be
           placed to a dedicated routing-table and two policy routing rules
           will be added. The fwmark number is also used as routing-table for
           the default-route, and if fwmark is zero, an unused fwmark/table is
           chosen automatically. This corresponds to what wg-quick does with
           Table=auto and what WireGuard calls "Improved Rule-based Routing".

           Note that for this automatism to work, you usually don't want to
           set ipv4.gateway, because that will result in a conflicting default
           route.

           Leaving this at the default will enable this option automatically
           if ipv4.never-default is not set and there are any peers that use a
           default-route as allowed-ips. Since this automatism only makes
           sense if you also have a peer with an /0 allowed-ips, it is usually
           not necessary to enable this explicitly. However, you can disable
           it if you want to configure your own routing and rules.

           Format: NMTernary (int32)

       ip6-auto-default-route
           Like ip4-auto-default-route, but for the IPv6 default route.

           Format: NMTernary (int32)

       listen-port
           The listen-port. If listen-port is not specified, the port will be
           chosen randomly when the interface comes up.

           Format: uint32

       mtu
           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple fragments.

           If zero a default MTU is used. Note that contrary to wg-quick's MTU
           setting, this does not take into account the current routes at the
           time of activation.

           Format: uint32

       peer-routes
           Whether to automatically add routes for the AllowedIPs ranges of
           the peers. If TRUE (the default), NetworkManager will automatically
           add routes in the routing tables according to ipv4.route-table and
           ipv6.route-table. Usually you want this automatism enabled. If
           FALSE, no such routes are added automatically. In this case, the
           user may want to configure static routes in ipv4.routes and
           ipv6.routes, respectively.

           Note that if the peer's AllowedIPs is "0.0.0.0/0" or "::/0" and the
           profile's ipv4.never-default or ipv6.never-default setting is
           enabled, the peer route for this peer won't be added automatically.

           Format: boolean

       private-key
           The 256 bit private-key in base64 encoding.

           Format: string

       private-key-flags
           Flags indicating how to handle the "private-key" property.

           Format: NMSettingSecretFlags (uint32)

   802-11-wireless setting
       Alias: wifi

       Wi-Fi Settings.

       Properties:

       ap-isolation
           Configures AP isolation, which prevents communication between
           wireless devices connected to this AP. This property can be set to
           a value different from NM_TERNARY_DEFAULT (-1) only when the
           interface is configured in AP mode.

           If set to NM_TERNARY_TRUE (1), devices are not able to communicate
           with each other. This increases security because it protects
           devices against attacks from other clients in the network. At the
           same time, it prevents devices to access resources on the same
           wireless networks as file shares, printers, etc.

           If set to NM_TERNARY_FALSE (0), devices can talk to each other.

           When set to NM_TERNARY_DEFAULT (-1), the global default is used; in
           case the global default is unspecified it is assumed to be
           NM_TERNARY_FALSE (0).

           Format: NMTernary (int32)

       band
           802.11 frequency band of the network. One of "a" for 5GHz 802.11a
           or "bg" for 2.4GHz 802.11. This will lock associations to the Wi-Fi
           network to the specific band, i.e. if "a" is specified, the device
           will not associate with the same network in the 2.4GHz band even if
           the network's settings are compatible. This setting depends on
           specific driver capability and may not work with all drivers.

           Format: string

       bssid
           If specified, directs the device to only associate with the given
           access point. This capability is highly driver dependent and not
           supported by all devices. Note: this property does not control the
           BSSID used when creating an Ad-Hoc network and is unlikely to in
           the future.

           Locking a client profile to a certain BSSID will prevent roaming
           and also disable background scanning. That can be useful, if there
           is only one access point for the SSID.

           Format: byte array

       channel
           Wireless channel to use for the Wi-Fi connection. The device will
           only join (or create for Ad-Hoc networks) a Wi-Fi network on the
           specified channel. Because channel numbers overlap between bands,
           this property also requires the "band" property to be set.

           Format: uint32

       cloned-mac-address
           Alias: cloned-mac

           If specified, request that the device use this MAC address instead.
           This is known as MAC cloning or spoofing.

           Beside explicitly specifying a MAC address, the special values
           "preserve", "permanent", "random" and "stable" are supported.
           "preserve" means not to touch the MAC address on activation.
           "permanent" means to use the permanent hardware address of the
           device. "random" creates a random MAC address on each connect.
           "stable" creates a hashed MAC address based on connection.stable-id
           and a machine dependent key.

           If unspecified, the value can be overwritten via global defaults,
           see manual of NetworkManager.conf. If still unspecified, it
           defaults to "preserve" (older versions of NetworkManager may use a
           different default value).

           On D-Bus, this field is expressed as "assigned-mac-address" or the
           deprecated "cloned-mac-address".

           Format: byte array

       generate-mac-address-mask
           With "cloned-mac-address" setting "random" or "stable", by default
           all bits of the MAC address are scrambled and a
           locally-administered, unicast MAC address is created. This property
           allows to specify that certain bits are fixed. Note that the least
           significant bit of the first MAC address will always be unset to
           create a unicast MAC address.

           If the property is NULL, it is eligible to be overwritten by a
           default connection setting. If the value is still NULL or an empty
           string, the default is to create a locally-administered, unicast
           MAC address.

           If the value contains one MAC address, this address is used as
           mask. The set bits of the mask are to be filled with the current
           MAC address of the device, while the unset bits are subject to
           randomization. Setting "FE:FF:FF:00:00:00" means to preserve the
           OUI of the current MAC address and only randomize the lower 3 bytes
           using the "random" or "stable" algorithm.

           If the value contains one additional MAC address after the mask,
           this address is used instead of the current MAC address to fill the
           bits that shall not be randomized. For example, a value of
           "FE:FF:FF:00:00:00 68:F7:28:00:00:00" will set the OUI of the MAC
           address to 68:F7:28, while the lower bits are randomized. A value
           of "02:00:00:00:00:00 00:00:00:00:00:00" will create a fully
           scrambled globally-administered, burned-in MAC address.

           If the value contains more than one additional MAC addresses, one
           of them is chosen randomly. For example, "02:00:00:00:00:00
           00:00:00:00:00:00 02:00:00:00:00:00" will create a fully scrambled
           MAC address, randomly locally or globally administered.

           Format: string

       hidden
           If TRUE, indicates that the network is a non-broadcasting network
           that hides its SSID. This works both in infrastructure and AP mode.

           In infrastructure mode, various workarounds are used for a more
           reliable discovery of hidden networks, such as probe-scanning the
           SSID. However, these workarounds expose inherent insecurities with
           hidden SSID networks, and thus hidden SSID networks should be used
           with caution.

           In AP mode, the created network does not broadcast its SSID.

           Note that marking the network as hidden may be a privacy issue for
           you (in infrastructure mode) or client stations (in AP mode), as
           the explicit probe-scans are distinctly recognizable on the air.

           Format: boolean

       mac-address
           Alias: mac

           If specified, this connection will only apply to the Wi-Fi device
           whose permanent MAC address matches. This property does not change
           the MAC address of the device (i.e. MAC spoofing).

           Format: byte array

       mac-address-blacklist
           A list of permanent MAC addresses of Wi-Fi devices to which this
           connection should never apply. Each MAC address should be given in
           the standard hex-digits-and-colons notation (eg
           "00:11:22:33:44:55").

           Format: array of string

       mac-address-randomization
           One of NM_SETTING_MAC_RANDOMIZATION_DEFAULT (0) (never randomize
           unless the user has set a global default to randomize and the
           supplicant supports randomization),
           NM_SETTING_MAC_RANDOMIZATION_NEVER (1) (never randomize the MAC
           address), or NM_SETTING_MAC_RANDOMIZATION_ALWAYS (2) (always
           randomize the MAC address).

           This property is deprecated since version 1.4. Use the
           "cloned-mac-address" property instead.

           Format: uint32

       mode
           Alias: mode

           Wi-Fi network mode; one of "infrastructure", "mesh", "adhoc" or
           "ap". If blank, infrastructure is assumed.

           Format: string

       mtu
           Alias: mtu

           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple Ethernet frames.

           Format: uint32

       powersave
           One of NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2) (disable Wi-Fi
           power saving), NM_SETTING_WIRELESS_POWERSAVE_ENABLE (3) (enable
           Wi-Fi power saving), NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1)
           (don't touch currently configure setting) or
           NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0) (use the globally
           configured value). All other values are reserved.

           Format: uint32

       rate
           If non-zero, directs the device to only use the specified bitrate
           for communication with the access point. Units are in Kb/s, ie 5500
           = 5.5 Mbit/s. This property is highly driver dependent and not all
           devices support setting a static bitrate.

           Format: uint32

       seen-bssids
           A list of BSSIDs (each BSSID formatted as a MAC address like
           "00:11:22:33:44:55") that have been detected as part of the Wi-Fi
           network. NetworkManager internally tracks previously seen BSSIDs.
           The property is only meant for reading and reflects the BSSID list
           of NetworkManager. The changes you make to this property will not
           be preserved.

           Format: array of string

       ssid
           Alias: ssid

           SSID of the Wi-Fi network. Must be specified.

           Format: byte array

       tx-power
           If non-zero, directs the device to use the specified transmit
           power. Units are dBm. This property is highly driver dependent and
           not all devices support setting a static transmit power.

           Format: uint32

       wake-on-wlan
           The NMSettingWirelessWakeOnWLan options to enable. Not all devices
           support all options. May be any combination of
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_ANY (0x2),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_DISCONNECT (0x4),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_MAGIC (0x8),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_GTK_REKEY_FAILURE (0x10),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_EAP_IDENTITY_REQUEST (0x20),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_4WAY_HANDSHAKE (0x40),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_RFKILL_RELEASE (0x80),
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_TCP (0x100) or the special values
           NM_SETTING_WIRELESS_WAKE_ON_WLAN_DEFAULT (0x1) (to use global
           settings) and NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE (0x8000) (to
           disable management of Wake-on-LAN in NetworkManager).

           Format: uint32

   802-11-wireless-security setting
       Alias: wifi-sec

       Wi-Fi Security Settings.

       Properties:

       auth-alg
           When WEP is used (ie, key-mgmt = "none" or "ieee8021x") indicate
           the 802.11 authentication algorithm required by the AP here. One of
           "open" for Open System, "shared" for Shared Key, or "leap" for
           Cisco LEAP. When using Cisco LEAP (ie, key-mgmt = "ieee8021x" and
           auth-alg = "leap") the "leap-username" and "leap-password"
           properties must be specified.

           Format: string

       fils
           Indicates whether Fast Initial Link Setup (802.11ai) must be
           enabled for the connection. One of
           NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT (0) (use global default
           value), NM_SETTING_WIRELESS_SECURITY_FILS_DISABLE (1) (disable
           FILS), NM_SETTING_WIRELESS_SECURITY_FILS_OPTIONAL (2) (enable FILS
           if the supplicant and the access point support it) or
           NM_SETTING_WIRELESS_SECURITY_FILS_REQUIRED (3) (enable FILS and
           fail if not supported). When set to
           NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT (0) and no global default
           is set, FILS will be optionally enabled.

           Format: int32

       group
           A list of group/broadcast encryption algorithms which prevents
           connections to Wi-Fi networks that do not utilize one of the
           algorithms in the list. For maximum compatibility leave this
           property empty. Each list element may be one of "wep40", "wep104",
           "tkip", or "ccmp".

           Format: array of string

       key-mgmt
           Key management used for the connection. One of "none" (WEP or no
           password protection), "ieee8021x" (Dynamic WEP), "owe"
           (Opportunistic Wireless Encryption), "wpa-psk" (WPA2 + WPA3
           personal), "sae" (WPA3 personal only), "wpa-eap" (WPA2 + WPA3
           enterprise) or "wpa-eap-suite-b-192" (WPA3 enterprise only).

           This property must be set for any Wi-Fi connection that uses
           security.

           Format: string

       leap-password
           The login password for legacy LEAP connections (ie, key-mgmt =
           "ieee8021x" and auth-alg = "leap").

           Format: string

       leap-password-flags
           Flags indicating how to handle the "leap-password" property.

           Format: NMSettingSecretFlags (uint32)

       leap-username
           The login username for legacy LEAP connections (ie, key-mgmt =
           "ieee8021x" and auth-alg = "leap").

           Format: string

       pairwise
           A list of pairwise encryption algorithms which prevents connections
           to Wi-Fi networks that do not utilize one of the algorithms in the
           list. For maximum compatibility leave this property empty. Each
           list element may be one of "tkip" or "ccmp".

           Format: array of string

       pmf
           Indicates whether Protected Management Frames (802.11w) must be
           enabled for the connection. One of
           NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT (0) (use global default
           value), NM_SETTING_WIRELESS_SECURITY_PMF_DISABLE (1) (disable PMF),
           NM_SETTING_WIRELESS_SECURITY_PMF_OPTIONAL (2) (enable PMF if the
           supplicant and the access point support it) or
           NM_SETTING_WIRELESS_SECURITY_PMF_REQUIRED (3) (enable PMF and fail
           if not supported). When set to
           NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT (0) and no global default
           is set, PMF will be optionally enabled.

           Format: int32

       proto
           List of strings specifying the allowed WPA protocol versions to
           use. Each element may be one "wpa" (allow WPA) or "rsn" (allow
           WPA2/RSN). If not specified, both WPA and RSN connections are
           allowed.

           Format: array of string

       psk
           Pre-Shared-Key for WPA networks. For WPA-PSK, it's either an ASCII
           passphrase of 8 to 63 characters that is (as specified in the
           802.11i standard) hashed to derive the actual key, or the key in
           form of 64 hexadecimal character. The WPA3-Personal networks use a
           passphrase of any length for SAE authentication.

           Format: string

       psk-flags
           Flags indicating how to handle the "psk" property.

           Format: NMSettingSecretFlags (uint32)

       wep-key-flags
           Flags indicating how to handle the "wep-key0", "wep-key1",
           "wep-key2", and "wep-key3" properties.

           Format: NMSettingSecretFlags (uint32)

       wep-key-type
           Controls the interpretation of WEP keys. Allowed values are
           NM_WEP_KEY_TYPE_KEY (1), in which case the key is either a 10- or
           26-character hexadecimal string, or a 5- or 13-character ASCII
           password; or NM_WEP_KEY_TYPE_PASSPHRASE (2), in which case the
           passphrase is provided as a string and will be hashed using the
           de-facto MD5 method to derive the actual WEP key.

           Format: NMWepKeyType (uint32)

       wep-key0
           Index 0 WEP key. This is the WEP key used in most networks. See the
           "wep-key-type" property for a description of how this key is
           interpreted.

           Format: string

       wep-key1
           Index 1 WEP key. This WEP index is not used by most networks. See
           the "wep-key-type" property for a description of how this key is
           interpreted.

           Format: string

       wep-key2
           Index 2 WEP key. This WEP index is not used by most networks. See
           the "wep-key-type" property for a description of how this key is
           interpreted.

           Format: string

       wep-key3
           Index 3 WEP key. This WEP index is not used by most networks. See
           the "wep-key-type" property for a description of how this key is
           interpreted.

           Format: string

       wep-tx-keyidx
           When static WEP is used (ie, key-mgmt = "none") and a non-default
           WEP key index is used by the AP, put that WEP key index here. Valid
           values are 0 (default key) through 3. Note that some consumer
           access points (like the Linksys WRT54G) number the keys 1 - 4.

           Format: uint32

       wps-method
           Flags indicating which mode of WPS is to be used if any.

           There's little point in changing the default setting as
           NetworkManager will automatically determine whether it's feasible
           to start WPS enrollment from the Access Point capabilities.

           WPS can be disabled by setting this property to a value of 1.

           Format: uint32

   wpan setting
       IEEE 802.15.4 (WPAN) MAC Settings.

       Properties:

       channel
           Alias: channel

           IEEE 802.15.4 channel. A positive integer or -1, meaning "do not
           set, use whatever the device is already set to".

           Format: int32

       mac-address
           Alias: mac

           If specified, this connection will only apply to the IEEE 802.15.4
           (WPAN) MAC layer device whose permanent MAC address matches.

           Format: string

       page
           Alias: page

           IEEE 802.15.4 channel page. A positive integer or -1, meaning "do
           not set, use whatever the device is already set to".

           Format: int32

       pan-id
           Alias: pan-id

           IEEE 802.15.4 Personal Area Network (PAN) identifier.

           Format: uint32

       short-address
           Alias: short-addr

           Short IEEE 802.15.4 address to be used within a restricted
           environment.

           Format: uint32

   bond-port setting
       Bond Port Settings.

       Properties:

       queue-id
           Alias: queue-id

           The queue ID of this bond port. The maximum value of queue ID is
           the number of TX queues currently active in device.

           Format: uint32

   hostname setting
       Hostname settings.

       Properties:

       from-dhcp
           Whether the system hostname can be determined from DHCP on this
           connection.

           When set to NM_TERNARY_DEFAULT (-1), the value from global
           configuration is used. If the property doesn't have a value in the
           global configuration, NetworkManager assumes the value to be
           NM_TERNARY_TRUE (1).

           Format: NMTernary (int32)

       from-dns-lookup
           Whether the system hostname can be determined from reverse DNS
           lookup of addresses on this device.

           When set to NM_TERNARY_DEFAULT (-1), the value from global
           configuration is used. If the property doesn't have a value in the
           global configuration, NetworkManager assumes the value to be
           NM_TERNARY_TRUE (1).

           Format: NMTernary (int32)

       only-from-default
           If set to NM_TERNARY_TRUE (1), NetworkManager attempts to get the
           hostname via DHCPv4/DHCPv6 or reverse DNS lookup on this device
           only when the device has the default route for the given address
           family (IPv4/IPv6).

           If set to NM_TERNARY_FALSE (0), the hostname can be set from this
           device even if it doesn't have the default route.

           When set to NM_TERNARY_DEFAULT (-1), the value from global
           configuration is used. If the property doesn't have a value in the
           global configuration, NetworkManager assumes the value to be
           NM_TERNARY_FALSE (0).

           Format: NMTernary (int32)

       priority
           The relative priority of this connection to determine the system
           hostname. A lower numerical value is better (higher priority). A
           connection with higher priority is considered before connections
           with lower priority.

           If the value is zero, it can be overridden by a global value from
           NetworkManager configuration. If the property doesn't have a value
           in the global configuration, the value is assumed to be 100.

           Negative values have the special effect of excluding other
           connections with a greater numerical priority value; so in presence
           of at least one negative priority, only connections with the lowest
           priority value will be used to determine the hostname.

           Format: int32

   loopback setting
       Loopback Link Settings.

       Properties:

       mtu
           Alias: mtu

           If non-zero, only transmit packets of the specified size or
           smaller, breaking larger packets up into multiple Ethernet frames.

           Format: uint32

   veth setting
       Veth Settings.

       Properties:

       peer
           Alias: peer

           This property specifies the peer interface name of the veth. This
           property is mandatory.

           Format: string

   Secret flag types:
       Each password or secret property in a setting has an associated flags
       property that describes how to handle that secret. The flags property
       is a bitfield that contains zero or more of the following values
       logically OR-ed together.

       •   0x0 (none) - the system is responsible for providing and storing
           this secret. This may be required so that secrets are already
           available before the user logs in. It also commonly means that the
           secret will be stored in plain text on disk, accessible to root
           only. For example via the keyfile settings plugin as described in
           the "PLUGINS" section in NetworkManager.conf(5).

       •   0x1 (agent-owned) - a user-session secret agent is responsible for
           providing and storing this secret; when it is required, agents will
           be asked to provide it.

       •   0x2 (not-saved) - this secret should not be saved but should be
           requested from the user each time it is required. This flag should
           be used for One-Time-Pad secrets, PIN codes from hardware tokens,
           or if the user simply does not want to save the secret.

       •   0x4 (not-required) - in some situations it cannot be automatically
           determined that a secret is required or not. This flag hints that
           the secret is not required and should not be requested from the
           user.

FILES
       /etc/NetworkManager/system-connections or distro plugin-specific
       location

SEE ALSO
       nmcli(1), nmcli-examples(7), NetworkManager(8), nm-settings-dbus(5),
       nm-settings-keyfile(5), NetworkManager.conf(5)

NetworkManager 1.42.4                                     NM-SETTINGS-NMCLI(5)

Generated by dwww version 1.15 on Sun Jun 16 04:10:18 CEST 2024.