etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# Ethernet
auto eth0
iface eth0 inet static
address 192.168.1.2
netmask 255.255.255.0
#gateway 192.168.0.254

auto eth1
iface eth1 inet static
address 192.168.1.3
netmask 255.255.255.0