Howto check if a ethernet interface is up?
It's impossible to determine via the ipaddress i have learned, or?
Can someone please give me a hint on howto do?
Environment == Linux x86 GNU GCC.
:D
regards
Esaia (2 Replies)
Given the interfaces on a firewall:
eth0 Link encap:Ethernet HWaddr 02:40:67:34:F5:47
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
eth1 Link encap:Ethernet HWaddr 86:23:98:45:35:56
inet addr:123.45.240.69 Bcast:255.255.255.255 ... (2 Replies)
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dmesg
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Discussion started by: gull04
2 Replies
LEARN ABOUT MOJAVE
systemd-networkd-wait-online.service
SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8) systemd-networkd.service SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)NAME
systemd-networkd-wait-online.service, systemd-networkd-wait-online - Wait for network to come online
SYNOPSIS
systemd-networkd-wait-online.service
/lib/systemd/systemd-networkd-wait-online
DESCRIPTION
systemd-networkd-wait-online is a one-shot system service 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
gain a carrier.
OPTIONS
The following options are understood:
-i, --interface=
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. This option may be used more than once to wait for
multiple network interfaces. When used, all other interfaces are ignored.
--ignore=
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.
--timeout=
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.
SEE ALSO systemd(1), systemd-networkd.service(8)systemd 237 SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)