# The loopback network interface
auto lo eth0 eth1
iface lo inet loopback

# PUBLIC
allow-hotplug eth0
iface eth0 inet dhcp
   hwaddress ether 00:C0:9F:43:93:D3

# PRIVATE
allow-hotplug eth1
iface eth1 inet static
   address 192.168.1.1
   netmask 255.255.255.0