1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    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: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:1b:fc:ca:b1:8d brd ff:ff:ff:ff:ff:ff
    inet 172.28.64.11/24 brd 172.28.64.255 scope global eth1
    inet6 fe80::21b:fcff:feca:b18d/64 scope link 
       valid_lft forever preferred_lft forever
3: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 00:1b:fc:ca:bd:77 brd ff:ff:ff:ff:ff:ff