admin@pc01:~$ arp -a 172.16.0.254_gateway (172.16.0.254) on 00:00:5e:00:01:01 [ether] on wlp4s0admin@pc01:~$ ip -6 neighborfe80::172:16:0:254 dev wlp4s0 lladdr 00:00:5e:00:01:02 router REACHABLE