1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 78:31:c1:bb:af:0c brd ff:ff:ff:ff:ff:ff
    inet 10.9.0.55/23 brd 10.9.1.255 scope global wlan0
       valid_lft forever preferred_lft forever
    inet6 fe80::7a31:c1ff:febb:af0c/64 scope link 
       valid_lft forever preferred_lft forever
3: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 00:50:b6:47:ed:e2 brd ff:ff:ff:ff:ff:ff