Arp

A TCP/IP protocol command that displays and modifies the IP-to-MAC address translation tables used by the ARP (Address Resolution Protocol).

Syntax

 arp -a [inet_addr] [-N [if_addr]] arp -d inet_addr [if_addr] arp -g [-N [if_addr]] arp -s inet_addr ether_addr [if_addr] 

Parameters
Parameter	Purpose
−a	Lists ARP entries.
−g	Lists ARP entries in the same manner as −a.
[inet_addr]	Identifies an IP address.
−N	Lists ARP entries for the network interface specified by if_addr.
[if_addr]	Identifies the IP address of the network interface whose address translation table should be modified. Otherwise, the first applicable interface will be used.
−d	Removes the entry specified by inet_addr.
−s	Adds a permanent entry in the ARP cache that associates the inet_addr IP address with the ether_addr MAC address.
ether_addr	Specifies a MAC address.