1. Add/Check IP Address
# ifconfig eth0:1
eth0:1 Link encap:Ethernet HWaddr 00:0C:29:CA:67:96
inet addr:192.168.101.114 Bcast:192.168.101.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
Interrupt:67 Base address:0x2000
2.
Check default gateway
# netstat -nr
Kernel IP routing table
Destination Gateway Genmask Flags
MSS Window irtt Iface
192.168.100.0 0.0.0.0 255.255.254.0 U
0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U
0 0 0 eth0
10.0.0.0 0.0.0.0 255.0.0.0 U
0 0 0 eth0
0.0.0.0 10.0.0.1 0.0.0.0 UG
0 0 0 eth0
3.
Execute route command
# route add default gw
192.168.100.1 eth0:1
4.
Check new gateway
# netstat -nr
Kernel IP routing table
Destination Gateway Genmask Flags
MSS Window irtt Iface
192.168.100.0 0.0.0.0 255.255.254.0 U
0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U
0 0 0 eth0
10.0.0.0 0.0.0.0 255.0.0.0 U
0 0 0 eth0
0.0.0.0 192.168.100.1 0.0.0.0
UG 0 0 0 eth0
0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0 eth0
