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)
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