ip a

[root@kube-master ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    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 1450 qdisc pfifo_fast state UP qlen 1000
    link/ether fa:16:3e:ae:61:b2 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.10/24 brd 10.0.0.255 scope global dynamic eth0
       valid_lft 61522sec preferred_lft 61522sec
    inet6 fe80::f816:3eff:feae:61b2/64 scope link
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN
    link/ether 02:42:97:fd:80:c5 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 scope global docker0
       valid_lft forever preferred_lft forever
4: flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UNKNOWN
    link/ether 2e:a3:81:54:9f:b3 brd ff:ff:ff:ff:ff:ff
    inet 10.244.0.0/32 scope global flannel.1
       valid_lft forever preferred_lft forever
    inet6 fe80::2ca3:81ff:fe54:9fb3/64 scope link
       valid_lft forever preferred_lft forever
5: cni0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP qlen 1000
    link/ether 0a:58:0a:f4:00:01 brd ff:ff:ff:ff:ff:ff
    inet 10.244.0.1/24 scope global cni0
       valid_lft forever preferred_lft forever
    inet6 fe80::4c50:75ff:fea0:cb95/64 scope link
       valid_lft forever preferred_lft forever
6: veth07b5a74d@if3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue master cni0 state UP
    link/ether ce:bb:98:62:b7:6a brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::ccbb:98ff:fe62:b76a/64 scope link
       valid_lft forever preferred_lft forever