# /etc/network/interfaces file
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0
allow-hotplug eth2
iface eth1 inet dhcp
iface eth0 inet dhcp



CPU-1:/# ifconfig -a
eth0      Link encap:UNSPEC  HWaddr 00-11-D8-00-00-AC-E4-D9-00-00-00-00-00-00-00-00
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

eth1      Link encap:Ethernet  HWaddr 00:17:31:9F:C7:62
          inet6 addr: fe80::217:31ff:fe9f:c762/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:492 (492.0 b)
          Interrupt:18

eth2      Link encap:Ethernet  HWaddr 00:17:31:9F:CA:1E
          inet addr:12.219.50.87  Bcast:255.255.255.255  Mask:255.255.248.0
          UP BROADCAST RUNNING MULTICAST  MTU:576  Metric:1
          RX packets:80098 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1663 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:5208348 (4.9 MiB)  TX bytes:157204 (153.5 KiB)
          Interrupt:23 Base address:0x4000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:98 errors:0 dropped:0 overruns:0 frame:0
          TX packets:98 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:6788 (6.6 KiB)  TX bytes:6788 (6.6 KiB)

CPU-1:/#