Hello,

Linux noob here.... just trying to get some networking to work.

We have a server with multiple NIC aliases defined in the /etc/network/interfaces file

eth0
eth0:1
..
eth0:14


When this server accesses the internet, it currently goes via the main eth0 IP address, as you would expect.

How can i make this ubuntu server access the internet from one of the other virtual NICs so that the external IP address appears to be one of the other assigned external IP addresses?

e.g.

eth0 external IP = 123.123.123.123
eth0:1 external IP = 123.123.123.124
eth0:2 external IP = 123.123.123.125

Thanks

p.s. I test this by "curl icanhazip.com"

Following link can help you to setup IP aliasing on one physical interface. The file position could be different if your distribution is different from their.
http://www.tecmint.com/create-multip...ork-interface/

Thanks for the tips and these will be useful for the future... but as it turns out curl has an inbuilt way of accessing these virtual aliases.

Thanks for your time regardless.

First of all, can you ping these alias IP address from another machine?