root@locallanbo-138 (ttymxc1) /sbin]# /sbin/ifconfig eth0 0.0.0.0
[root@locallanbo-138 (ttymxc1) /sbin]# /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:0C:11:09:7D
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:212673 errors:0 dropped:0 overruns:0 frame:0
          TX packets:156141 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:16615392 (15.8 MiB)  TX bytes:12574705 (11.9 MiB)
          Base address:0x8000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:571864 errors:0 dropped:0 overruns:0 frame:0
          TX packets:571864 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:32089463 (30.6 MiB)  TX bytes:32089463 (30.6 MiB)

[root@locallanbo-138 (ttymxc1) /sbin]# /sbin/ifconfig eth0 192.168.1.138
[root@locallanbo-138 (ttymxc1) /sbin]# /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:0C:11:09:7D
          inet addr:192.168.1.138  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:212673 errors:0 dropped:0 overruns:0 frame:0
          TX packets:156141 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:16615392 (15.8 MiB)  TX bytes:12574705 (11.9 MiB)
          Base address:0x8000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:571864 errors:0 dropped:0 overruns:0 frame:0
          TX packets:571864 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:32089463 (30.6 MiB)  TX bytes:32089463 (30.6 MiB)

-------------------------------------------------------
root@locallanbo-138 (ttymxc1) /etc]# cat /etc/config/interfaces
auto lo eth0
iface lo inet loopback
iface eth0 inet static
        address 192.168.1.138
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.131
[root@locallanbo-138 (ttymxc1) /etc]# eth0: link up, 100Mbps, full-duplex
[root@locallanbo-138 (ttymxc1) /etc]#