This diagnostic command displays and modifies the IP-to-Ethernet or Token Ring physical address translation tables used by the Address Resolution Protocol (ARP).
Syntax
arp -a [inet_addr] [-N [if_addr]]
arp -d inet_addr [if_addr]
arp -s inet_addr ether_addr [if_addr]
Parameters
-a
Displays current ARP entries by querying TCP/IP. If inet_addr is specified, only the IP and physical addresses for the specified host are displayed.
-d
Deletes the entry specified by inet_addr.
-g
Same as -a
-s
Adds an entry in the ARP cache to associate the IP address inet_addr with the physical address ether_addr. The physical address is given as 6 hexadecimal bytes separated by hyphens. The IP address is specified using dotted decimal notation. The entry is static. It will not be automatically removed from the cache after the timeout expires and will not exist after a reboot of your computer.
-N [if_addr]
Displays the ARP entries for the network interface specified by if_addr.
ether_addr
Specifies a physical address.
if_addr
Specifies, if present, the IP address of the interface whose address translation table should be modified. If not present, the first applicable interface will be used.
inet_addr
Specifies an IP address in dotted decimal notation.