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: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 00:23:54:7e:72:88 brd ff:ff:ff:ff:ff:ff
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1492 qdisc mq state UP qlen 1000
    link/ether 00:15:af:db:4b:8d brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.21/21 brd 10.10.15.255 scope global wlan0
    inet6 fe80::215:afff:fedb:4b8d/64 scope link 
       valid_lft forever preferred_lft forever