Avaya P332G-ML Manual Do Utilizador

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Chapter 12
Avaya P330 Layer 3 Features
102
Avaya P332G-ML User’s Guide
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 
Address Resolution Protocol (ARP) 
cache
arp 
Configure the amount of time that 
an entry remains in the ARP cache
arp timeout
Set the amount of time that an entry 
remains in the ARP cache back to 
default
no arp timeout
Set the maximum number of ARP 
cache entries allowed in the ARP 
cache
ip max-arp-entries
Set the maximum number of ARP 
cache back to default
no ip max-arp-entries 
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 
ARP cache and the IP route cache
clear arp-cache
Display the Address Resolution 
Protocol (ARP) cache
show ip arp 
Display the IP address of a host, 
based on a known MAC address
show ip reverse-arp