1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 8c:70:5a:c9:fb:e0 brd ff:ff:ff:ff:ff:ff
    inet 10.1.1.3/24 brd 10.1.1.255 scope global wlan0
    inet6 fe80::8e70:5aff:fec9:fbe0/64 scope link 
       valid_lft forever preferred_lft forever
13: wwan0: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 22:f5:4b:c1:65:84 brd ff:ff:ff:ff:ff:ff