Configuring The Arp Table; Overview Of Arp; The Arp Table - Avaya G250 Administration

Configuring the ARP table

When you configure the ARP table, you can:
View information about the ARP table
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Add entries to the ARP table
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Delete entries from the ARP table
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Configure the ARP timeout
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Note:
To change an entry in the ARP table, delete the entry and add it back with revised
Note:
parameters.

Overview of ARP

IP logical network addresses are independent of physical addresses. The physical address
must be used to convey data in the form of a frame from one device to another. Therefore, a
mechanism is required to acquire a destination device hardware address from its IP address.
This mechanism is called ARP (Address Resolution Protocol).

The ARP table

The ARP table stores pairs of IP and MAC addresses. This storage saves time and
communication costs, since the host looks in the ARP table first when transmitting a packet. If
the information is not there, then the host sends an ARP Request.
There are two types of entries in the ARP table:
Static ARP table entries
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Dynamic ARP table entries
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Static ARP table entries do not expire. You add static ARP table entries manually with the arp
command. For example, to add a static ARP table entry for station 192.168.7.8 with MAC
address 00:40:0d:8c:2a:01, use the following command:
G350-001# arp 192.168.7.8 00:40:0d:8c:2a:01
Configuring the ARP table
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