1SYSTEMD-NETWORKD-WAIT-sOyNsLtIeNmEd.-SnEeRtVwIoCrEk(d8-)waSiYtS-ToEnMlDi-nNeE.TsWeOrRvKiDc-eWAIT-ONLINE.SERVICE(8)
2
6 systemd-networkd-wait-online.service, systemd-networkd-wait-
7 online@.service, systemd-networkd-wait-online - Wait for network to
8 come online
9
11 systemd-networkd-wait-online.service
12 systemd-networkd-wait-online@.service
14 /usr/lib/systemd/systemd-networkd-wait-online
16
18 systemd-networkd-wait-online is a oneshot system service (see
19 systemd.service(5)), that waits for the network to be configured. By
20 default, it will wait for all links it is aware of and which are
21 managed by systemd-networkd.service(8) to be fully configured or
22 failed, and for at least one link to be online. Here, online means that
23 the link's operational state is equal or higher than "degraded". The
24 threshold can be configured by --operational-state= option.
25 The service systemd-networkd-wait-online.service invokes
27 systemd-networkd-wait-online without any options. Thus, it waits for
28 all managed interfaces to be configured or failed, and for at least one
29 to be online.
30 The service systemd-networkd-wait-online@.service takes an interface
32 name, and invokes systemd-networkd-wait-online with -i and the
33 specified interface name. Thus, wait for the specified interface to be
34 configured and online. For example,
35 systemd-networkd-wait-online@eth0.service waits for eth0 to be
36 configured by systemd-networkd and online.
37
39 The following options are understood:
40 -i INTERFACE[:MIN_OPERSTATE[:MAX_OPERSTATE]],
42 --interface=INTERFACE[:MIN_OPERSTATE[:MAX_OPERSTATE]]
43 Network interface to wait for before deciding if the system is
44 online. This is useful when a system has several interfaces which
45 will be configured, but a particular one is necessary to access
46 some network resources. When used, all other interfaces are
47 ignored. This option may be used more than once to wait for
48 multiple network interfaces. When this option is specified multiple
49 times, then systemd-networkd-wait-online waits for all specified
50 interfaces to be online. Optionally, required minimum and maximum
51 operational states can be specified after a colon ":". Please see
52 networkctl(1) for possible operational states. If the operational
53 state is not specified here, then the value from RequiredForOnline=
54 in the corresponding .network file is used if present, and
55 "degraded" otherwise.
56 --ignore=INTERFACE
58 Network interfaces to be ignored when deciding if the system is
59 online. By default, only the loopback interface is ignored. This
60 option may be used more than once to ignore multiple network
61 interfaces.
62 -o MIN_OPERSTATE[:MAX_OPERSTATE],
64 --operational-state=MIN_OPERSTATE[:MAX_OPERSTATE]
65 Takes a minimum operational state and an optional maximum
66 operational state. Please see networkctl(1) for possible
67 operational states. If set, the specified value overrides
68 RequiredForOnline= settings in .network files. But this does not
69 override operational states specified in --interface= option.
70 -4, --ipv4
72 Waiting for an IPv4 address of each network interface to be
73 configured. If this option is specified with --any, then
74 systemd-networkd-wait-online exits with success when at least one
75 interface becomes online and has an IPv4 address. If the required
76 minimum operational state is below "routable", then each link (or
77 at least one link with --any) must have an IPv4 link-local or
78 routable address. If the required minimum operational state is
79 "routable", then each link must have an IPv4 routable address.
80 If neither --ipv4 nor --ipv6 is specified, then the value from
82 RequiredFamilyForOnline= in the corresponding .network file is used
83 if present.
84 -6, --ipv6
86 Waiting for an IPv6 address of each network interface to be
87 configured. If this option is specified with --any, then
88 systemd-networkd-wait-online exits with success when at least one
89 interface becomes online and has an IPv6 address. If the required
90 minimum operational state is below "routable", then each link (or
91 at least one link with --any) must have an IPv6 link-local or
92 routable address. If the required minimum operational state is
93 "routable", then each link must have an IPv6 routable address.
94 If neither --ipv4 nor --ipv6 is specified, then the value from
96 RequiredFamilyForOnline= in the corresponding .network file is used
97 if present.
98 --any
100 Even if several interfaces are in configuring state,
101 systemd-networkd-wait-online exits with success when at least one
102 interface becomes online. When this option is specified with
103 --interface=, then systemd-networkd-wait-online waits for one of
104 the specified interfaces to be online. This option is useful when
105 some interfaces may not have carrier on boot.
106 --timeout=SECS
108 Fail the service if the network is not online by the time the
109 timeout elapses. A timeout of 0 disables the timeout. Defaults to
110 120 seconds.
111 -q, --quiet
113 Suppress log messages.
114 -h, --help
116 Print a short help text and exit.
117 --version
119 Print a short version string and exit.
120
122 systemd(1), systemd.service(5), systemd-networkd.service(8),
123 networkctl(1)
124systemd 251 SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)