It is not enough just to add the IP, the link must also be set up, it’s like the Network unreachable, but why I just added an IP. Ip: RTNETLINK answers: Network is unreachable
* The all three in one place for the right way of bringing up a network interface under linux with “ip” command:Īs it was said: just adding an IP to a network interface, which is in down state, would not help to set an IP, but you would not understand it and when you tried to add the default route your would see not so informative ~# ip addr add 192.168.0.100/24 dev ~# ip route add default via 192.168.0.1 If you omit this step a network interface, which is down won’t start and the next command (in step 3) will output an error! If your interface has been up already and you just add an additional IP to it you can skip this step (and probably the one below with the default gateway, but we do not describe this case here). So here are the steps and commands to bring up an interface, set IP and gateway: STEP 1) Add the IP to the network interface withĬhange the IP with your IP address. In fact we need two commands to instruct the network interface to bring up with an IP and then a third command to add a default gateway. The command is simple and self-explanatory but there is a catch! Just adding the IP won’t help you to bring up the network interface of your server. Which is considered as old style of setting the network when we need to do it manually. Lately many linux distributions do not ship by default with
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