# man > SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8) [_SYSTEMD-NETW...LINE.SERVICE_(8)](https://www.chedong.com/phpMan.php/man/SYSTEMD-NETW...LINE.SERVICE/8/markdown) systemd-networkd-wait-online.service [_SYSTEMD-NETW...LINE.SERVICE_(8)](https://www.chedong.com/phpMan.php/man/SYSTEMD-NETW...LINE.SERVICE/8/markdown) ## 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)](https://www.chedong.com/phpMan.php/man/systemd.service/5/markdown)), 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)](https://www.chedong.com/phpMan.php/man/systemd-networkd.service/8/markdown) 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, waits for eth0 to be configured by **systemd-networkd** and online. ## OPTIONS The following options are understood: ### -i _ **--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)](https://www.chedong.com/phpMan.php/man/networkctl/1/markdown) 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 _ --operational-state=_ Takes a minimum operational state and an optional maximum operational state. Please see [**networkctl**(1)](https://www.chedong.com/phpMan.php/man/networkctl/1/markdown) 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. ### --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)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown), [**systemd.service**(5)](https://www.chedong.com/phpMan.php/man/systemd.service/5/markdown), [**systemd-networkd.service**(8)](https://www.chedong.com/phpMan.php/man/systemd-networkd.service/8/markdown), [**networkctl**(1)](https://www.chedong.com/phpMan.php/man/networkctl/1/markdown) systemd 255 [_SYSTEMD-NETW...LINE.SERVICE_(8)](https://www.chedong.com/phpMan.php/man/SYSTEMD-NETW...LINE.SERVICE/8/markdown)