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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 68:f7:28:6a:0a:f0 brd ff:ff:ff:ff:ff:ff
    inet 10.100.1.99/24 brd 10.100.1.255 scope global dynamic eth0
       valid_lft 6945sec preferred_lft 6945sec
    inet6 fe80::6af7:28ff:fe6a:af0/64 scope link 
       valid_lft forever preferred_lft forever
4: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 60:57:18:75:8a:c3 brd ff:ff:ff:ff:ff:ff
7: wwan0: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether d2:a8:5c:24:92:65 brd ff:ff:ff:ff:ff:ff