[root@auth ~]# ip a | grep inet
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
    inet 172.18.1.4/24 brd 172.18.1.255 scope global eth0
    inet 172.18.1.5/24 scope global secondary eth0
    inet 172.18.1.6/24 scope global secondary eth0
    inet 172.18.1.12/24 scope global secondary eth0
    inet 172.18.1.13/24 scope global secondary eth0
    inet 172.18.1.14/24 scope global secondary eth0
    inet 172.18.1.8/24 scope global secondary eth0
    inet 172.18.1.9/24 scope global secondary eth0
    inet 172.18.1.10/24 scope global secondary eth0
    inet 172.18.1.16/24 scope global secondary eth0
    inet 172.18.1.17/24 scope global secondary eth0
    inet 172.18.1.20/24 scope global secondary eth0
    inet 172.18.1.21/24 scope global secondary eth0
    inet 172.18.1.22/24 scope global secondary eth0
    inet 172.18.1.23/24 scope global secondary eth0
    inet6 fd00::17/64 scope global
    inet6 fd00::16/64 scope global
    inet6 fd00::11/64 scope global
    inet6 fd00::10/64 scope global
    inet6 fd00::a/64 scope global
    inet6 fd00::9/64 scope global
    inet6 fd00::8/64 scope global
    inet6 fd00::e/64 scope global
    inet6 fd00::d/64 scope global
    inet6 fd00::c/64 scope global
    inet6 fd00::6/64 scope global
    inet6 fd00::5/64 scope global
    inet6 fd00::4/64 scope global nodad
    inet6 fe80::42:acff:fe12:104/64 scope link