Cisco ARP


#1

Originally published at: https://www.cliwarriors.com/rs/cisco-arp/

Using the Address Resolution Protocol (ARP) we can discover the link layer address (MAC Address) associated with an IPv4 address on Cisco routers and switches. R1#show arp Protocol Address Age (min) Hardware Addr Type Interface Internet 192.168.10.1 - 0c64.2b8d.2200 ARPA GigabitEthernet0/0 Internet 192.168.10.2 18 0c64.2bed.8a00 ARPA GigabitEthernet0/0 ! R2#show arp Protocol Address Age (min) Hardware…