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: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:0b:d2:e2 brd ff:ff:ff:ff:ff:ff
    inet 10.1.2.6/24 brd 10.1.2.255 scope global dynamic noprefixroute ens3
       valid_lft 467sec preferred_lft 467sec
    inet6 fe80::5054:ff:fe0b:d2e2/64 scope link 
       valid_lft forever preferred_lft forever