SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)	  systemd-networkd-wait-online.service

NAME
       systemd-networkd-wait-online.service, systemd-networkd-wait-
       online@.service, systemd-networkd-wait-online - Wait for network to
       come online

SYNOPSIS
       systemd-networkd-wait-online.service

       systemd-networkd-wait-online@.service

       /usr/lib/systemd/systemd-networkd-wait-online

DESCRIPTION
       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 systemd-networkd-wait-online@.service 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,
       systemd-networkd-wait-online@eth0.service 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.

	   Added in version 213.

       --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.

	   Added in version 219.

       -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.

	   Added in version 242.

       -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.

	   Added in version 249.

       -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.

	   Added in version 249.

       --dns
	   Waiting for DNS servers to be accessible on each interface. 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 accessible DNS server.

	   If a link has the property DefaultRoute=yes (either because the
	   DNSDefaultRoute= network property is explicitly configured, or
	   because the link does not have any "routing-only" domains), or if
	   the search domain "." is configured, then wait for link-specific
	   DNS servers to be accessible. Otherwise, allow global DNS servers
	   to satisfy the condition.

	   Added in version 258.

       --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.

	   Added in version 242.

       --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.

	   Added in version 219.

       -q, --quiet
	   Suppress log messages.

	   Added in version 242.

       -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 258
				       SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)