# The loopback network interface
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 10.170.1.2
netmask 255.0.0.0
post-up route add -net 10.206.160.0/24 gw 10.170.1.1

auto eth0:0
iface eth0:0 inet static
address 10.174.254.25
netmask 255.255.255.0

auto eth0:1
iface eth0:1 inet static
address 10.170.0.1
netmask 255.255.255.0