I am trying to get a server running on Ubuntu 14.04 to work with an attached router with a fixed LAN address of The server manufacturer said I needed to setup a default route. I found a post via Google that said the procedure with 14.04 from the command line is:

ip add default via (router LAN address) dev eth0.

Is this correct and do I need to undo to it if he doesn't work? If so, how?

I don't know what terms like "eth0" mean and have essentially no experience working with command lines other than DOS many years ago.


Check your current automatic settings with ifconfig. If the gateway hasn't been automatically set, you can do it manually by editing /etc/network/interfaces. Something like;

auto eth0
iface eth0 inet static

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