1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    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: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 2e:a2:c3:c0:18:46 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
29: eth0@if30: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UP group default qlen 1000
    link/ether 00:16:3e:01:46:ac brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 252.41.44.242/8 metric 100 brd 252.255.255.255 scope global dynamic eth0
       valid_lft 2097sec preferred_lft 2097sec
    inet6 fe80::216:3eff:fe01:46ac/64 scope link 
       valid_lft forever preferred_lft forever