NAME
systemd-networkd-wait-online.service, [email protected], systemd-networkd-wait-online - Wait for network to come onlineSYNOPSIS
systemd-networkd-wait-online.service [email protected] /lib/systemd/systemd-networkd-wait-onlineDESCRIPTION
systemd-networkd-wait-online is a oneshot system service (see systemd.service(5)), that waits for the network to be configured. By default, it will wait for all links it is aware of and which are managed by systemd-networkd.service(8) to be fully configured or failed, and for at least one link to be online. Here, online means that the link's operational state is equal or higher than "degraded". The threshold can be configured by --operational-state= option. The service systemd-networkd-wait-online.service invokes systemd-networkd-wait-online without any options. Thus, it waits for all managed interfaces to be configured or failed, and for at least one to be online. The service [email protected] takes an interface name, and invokes systemd-networkd-wait-online with -i and the specified interface name. Thus, wait for the specified interface to be configured and online. For example, [email protected] waits for eth0 to be configured by systemd-networkd and online.OPTIONS
The following options are understood: -i INTERFACE[:MIN_OPERSTATE[:MAX_OPERSTATE]], --interface= INTERFACE[:MIN_OPERSTATE[:MAX_OPERSTATE]]Network interface to wait for before deciding
if the system is online. This is useful when a system has several interfaces
which will be configured, but a particular one is necessary to access some
network resources. When used, all other interfaces are ignored. This option
may be used more than once to wait for multiple network interfaces. When this
option is specified multiple times, then systemd-networkd-wait-online
waits for all specified interfaces to be online. Optionally, required minimum
and maximum operational states can be specified after a colon ":".
Please see networkctl(1) for possible operational states. If the
operational state is not specified here, then the value from
RequiredForOnline= in the corresponding .network file is used if
present, and "degraded" otherwise.
--ignore=INTERFACE
Network interfaces to be ignored when deciding
if the system is online. By default, only the loopback interface is ignored.
This option may be used more than once to ignore multiple network
interfaces.
-o MIN_OPERSTATE[:MAX_OPERSTATE],
--operational-state= MIN_OPERSTATE[:MAX_OPERSTATE]
Takes a minimum operational state and an
optional maximum operational state. Please see networkctl(1) for
possible operational states. If set, the specified value overrides
RequiredForOnline= settings in .network files. But this does not
override operational states specified in --interface= option.
-4, --ipv4
Waiting for an IPv4 address of each network
interface to be configured. If this option is specified with --any,
then systemd-networkd-wait-online exits with success when at least one
interface becomes online and has an IPv4 address. If the required minimum
operational state is below "routable", then each link (or at least
one link with --any) must have an IPv4 link-local or routable address.
If the required minimum operational state is "routable", then each
link must have an IPv4 routable address.
If neither --ipv4 nor --ipv6 is specified, then the value from
RequiredFamilyForOnline= in the corresponding .network file is used if
present.
-6, --ipv6
Waiting for an IPv6 address of each network
interface to be configured. If this option is specified with --any,
then systemd-networkd-wait-online exits with success when at least one
interface becomes online and has an IPv6 address. If the required minimum
operational state is below "routable", then each link (or at least
one link with --any) must have an IPv6 link-local or routable address.
If the required minimum operational state is "routable", then each
link must have an IPv6 routable address.
If neither --ipv4 nor --ipv6 is specified, then the value from
RequiredFamilyForOnline= in the corresponding .network file is used if
present.
--any
Even if several interfaces are in configuring
state, systemd-networkd-wait-online exits with success when at least
one interface becomes online. When this option is specified with
--interface=, then systemd-networkd-wait-online waits for one of
the specified interfaces to be online. This option is useful when some
interfaces may not have carrier on boot.
--timeout=SECS
Fail the service if the network is not online
by the time the timeout elapses. A timeout of 0 disables the timeout. Defaults
to 120 seconds.
-q, --quiet
Suppress log messages.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
SEE ALSO
systemd(1), systemd.service(5), systemd-networkd.service(8), networkctl(1)systemd 252 |