3com 3CRWX120695A WXR100 Manual De Usuario

The Address Resolution Protocol (ARP) table maps IP addresses to MAC 
addresses. ARP is enabled by default on the WX and cannot be disabled. 
An ARP entry is added to the table in one of the following ways:

„

Automatically by the WX. The WX adds a local entry for its own MAC 
address and adds dynamic entries for addresses learned from traffic 
received by the WX. When the WX receives an IP packet, the WX adds 
the packet’s source MAC address and source IP address to the ARP 
table. 

„

By the system administrator. Using 3WXM, you can add permanent 
entries to the ARP table. Permanent entries do not age out and remain 
in the table even after the WX is rebooted.

In addition to adding permanent ARP entries, you can set the amount of 
time unused dynamic entries remain in the table before they are 
removed.

1 In the Aging Time box, specify the amount of time a dynamic entry can 

remain unused before the entry is removed from the ARP table.

The value range for the aging timeout is 0 to 1,000,000 seconds. The 
default value is 1200 seconds. To disable aging, specify 0 as the aging 
timeout.

The local entry for the WX, static entries, and permanent entries in the 
ARP table are not affected by the aging timeout.

2 Access the Create ARP Entry wizard:

a Select the Configuration tool bar option.

b In the Organizer panel, click the plus sign next to the WX switch. 

c Click the plus sign next to System.

d Select IP Services.

e In the Task List panel, select ARP Entry.

3 In the MAC Address box, type the MAC address that the IP address is to 

be mapped to.

4 In the IP Address box, type the IP address for the ARP entry.

5 Click Finish.