The arp command
The arp command displays and modifies the IP-to-physical address translation tables used by
Address Resolution Protocol (arp).
Arp command syntax
The arp command uses the following syntax:
arp -s inet_addr eth_addr [if_addr]
arp -d inet_addr [if_addr]
arp -a [inet_addr] [-N if_addr]
Parameter
Description
-a
Displays current arp entries by interrogating the current protocol
data. If inet_addr is specified, the IP and physical addresses for only
the specified computer appear. If more than one network interface
uses arp, entries for each arp table appear.
-g
Same as -a.
inet_addr
Specifies an Internet address.
if_addr
Specifies the Internet address of the interface whose address
translation table you need to modify. If not present, the first applicable
interface is used.
eth_addr
Specifies a physical address.
-N if_addr
Displays the arp entries for the network interface specified by if_addr.
-d
Deletes the host specified by inet_addr.
-s
Adds the host and associates the Internet address inet_addr with the
physical address eth_addr. The physical address is given as six
hexadecimal bytes separated by hyphens. The entry is permanent.
To run the arp command from the operating system
1. Click Start, Programs, Accessories, Command Prompt to display the command
prompt window.
The Command Prompt window appears.
2. At the prompt, type arp with the required parameters (for example, arp -g
200.286.0.32).
Using the operating system online diagnostic tools
40 Avaya CallPilot 202i Server Maintenance and Diagnostics
December 2010