auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
    address 94.130.43.185
    netmask 255.255.255.248
    dns-nameservers 213.133.100.100 213.133.98.98 213.133.99.99
    post-up ip route add 94.130.17.212 dev eth0
    post-up ip route add default via 94.130.17.212 dev eth0
    pre-down ip route del default via 94.130.17.212 dev eth0
    pre-down ip route del 94.130.17.212 dev eth0

auto eth1
iface eth1 inet static
    address 10.20.30.3
    netmask 255.255.255.0
    gateway 10.20.30.1