Configure the default IP address

kalistic · 05-25-2007, 06:41 AM

Hey,

I've got a debian server with a single NIC and 5 IPs. It's all setup, configured and working well. What I want to know is: when I access an external site (lynx, ftp, ssh, wget) which of the ip addresses will show in the remote servers logs?

I've been using tcptrack and it seems that it's always the ip address from the last nic in /etc/network/interfaces.

Is there a way to select which of the ip address should be the default?

Thanks!

acid_kewpie · 05-25-2007, 07:04 AM

what interface does this match up to on ifconfig? you'll have a default route listed against an interface, e.g. eth0. each ip will be on a seperate logical interface, eth0:1 eth0:2 etc.. and i *assume* that if your default route references, for exmaple, eth0:2 then that's the ip it would have.

kalistic · 05-25-2007, 07:33 AM

It references eth0:3

I think i messed up slightly when setting up the server, as i cut'n'pasted the settings for each of the virtual interfaces. So each of them have a default gateway! which means that when i ask route, I have 5 defaults.

I'll change /etc/network/interfaces so only the eth0 has a default gateway. Should this mean that the ip address assigned to eth0 should now become the 'default'?

As an aside, route shows the gateway address with a '.s' (eg 10.0.168.192.s) which I don't understand.