I'm trying to setup my server so that it'll use multiple IPs on one network card. My provider just gave me another IP but it uses a completely different gateway. I set it up in /etc/network/interfaces and the interface comes up properly but it doesn't respond to pings, I believe that there is a routing problem but I'm not sure how to fix it ...
# The loopback interface
iface lo inet loopback
# The first network card - this entry was created during the Debian installation
iface eth0 inet static