Avaya P3343T-ML manual The ARP Table, ARP CLI Commands

Chapter 12 Avaya P330 Layer 3 Features

The ARP Table

The ARP table is used to store recently used pairs of IP/MAC addresses. This saves time and communication costs, since the host looks in the ARP cache first when transmitting a packet. If the information is not there, then the host sends an ARP Request (see Figure 12.2).

ARP CLI Commands

In order to...	Use the following command...
Add a permanent entry to the	arp
Address Resolution Protocol (ARP)
cache
Configure the amount of time that	arp timeout
an entry remains in the ARP cache
Set the amount of time that an entry	no arp timeout
remains in the ARP cache back to
default
Set the maximum number of ARP	ip max-arp-entries
cache entries allowed in the ARP
cache
Set the maximum number of ARP	no ip max-arp-entries
cache back to default
Enable proxy ARP on an interface	ip proxy-arp
Disable proxy ARP on an interface	no ip proxy-arp
Delete all dynamic entries from the	clear arp-cache
ARP cache and the IP route cache
Display the Address Resolution	show ip arp
Protocol (ARP) cache
Display the IP address of a host,	show ip reverse-arp
based on a known MAC address

140 Avaya P334T-ML User’s Guide