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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:40:d0:33:98:ba brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.4/24 brd 192.168.1.255 scope global eth0
    inet6 fe80::240:d0ff:fe33:98ba/64 scope link 
       valid_lft forever preferred_lft forever
3: wmaster0: <UP,LOWER_UP> mtu 0 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ieee802.11 00:1c:f0:0a:b2:45 brd 00:00:00:00:00:00
4: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:1c:f0:0a:b2:45 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.2/24 brd 192.168.1.255 scope global wlan0
    inet6 fe80::21c:f0ff:fe0a:b245/64 scope link 
       valid_lft forever preferred_lft forever