# 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.
    


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