following command is used to set static ip in Ubuntu10.0.4
#nano /etc/network/interfaces
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.22
netmask 255.255.255.0
gateway 192.168.1.1
auto eth0:1
iface eth0:1 inet static
address 122.180.104.171
netmask 255.255.255.248
gateway 122.180.104.169
<$static Ip$>