Something

auto loiface lo inet loopbackauto eth0:0iface eth0:0 inet static        address 78.40.39.218        netmask 255.255.255.248        gateway 78.40.39.21auto eth0:1iface eth0:1 inet static        address 78.40.39.219        netmask 255.255.255.248        gateway 78.40.39.217