1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 100
    link/ether 00:19:d1:b0:6e:81 brd ff:ff:ff:ff:ff:ff
    inet 10.136.0.97/24 brd 10.136.0.255 scope global eth0
    inet6 fe80::219:d1ff:feb0:6e81/64 scope link 
       valid_lft forever preferred_lft forever
3: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 100
    link/ether 00:1b:21:02:88:76 brd ff:ff:ff:ff:ff:ff
    inet 172.31.0.1/24 brd 172.31.0.255 scope global eth2
    inet6 fe80::21b:21ff:fe02:8876/64 scope link 
       valid_lft forever preferred_lft forever
4: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 100
    link/ether 00:1b:21:0e:27:56 brd ff:ff:ff:ff:ff:ff
    inet 192.168.243.2/24 brd 192.168.243.255 scope global eth1
    inet6 fe80::21b:21ff:fe0e:2756/64 scope link 
       valid_lft forever preferred_lft forever