show arp [<ip-address>]

• Displays the entire ARP table
• Example:

admin@sonic:~$ show arp
Address                  HWtype  HWaddress           Flags Mask            Iface
192.168.1.183            ether   88:5a:92:fb:bf:41   C                     Ethernet44
192.168.1.175            ether   88:5a:92:fc:95:81   C                     Ethernet28
192.168.1.181            ether   e4:c7:22:c1:07:7c   C                     Ethernet40
192.168.1.179            ether   88:5a:92:de:a8:bc   C                     Ethernet36
192.168.1.118            ether   00:1c:73:3c:de:43   C                     Ethernet64
192.168.1.11             ether   00:1c:73:3c:e1:38   C                     Ethernet88
192.168.1.161            ether   24:e9:b3:71:3a:01   C                     Ethernet0
192.168.1.189            ether   24:e9:b3:9d:57:41   C                     Ethernet56
192.168.1.187            ether   74:26:ac:8b:8f:c1   C                     Ethernet52
192.168.1.165            ether   88:5a:92:de:a0:7c   C                     Ethernet8

• Optionally, you can specify an IP address in order to display only that particular entry
• Example:

admin@sonic:~$ show arp 192.168.1.181
Address                  HWtype  HWaddress           Flags Mask            Iface
192.168.1.181            ether   e4:c7:22:c1:07:7c   C                     Ethernet40