Viewing and Configuring IP Services Settings 207Configuring ARP The Address Resolution Protocol (ARP) table maps IP addresses to MACaddresses. 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 MACaddress and adds dynamic entries for addresses learned from trafficreceived by the WX. When the WX receives an IP packet, the WX addsthe packet’s source MAC address and source IP address to the ARPtable. By the system administrator. Using 3WXM, you can add permanententries to the ARP table. Permanent entries do not age out and remainin the table even after the WX is rebooted.In addition to adding permanent ARP entries, you can set the amount oftime unused dynamic entries remain in the table before they areremoved.1 In the Aging Time box, specify the amount of time a dynamic entry canremain unused before the entry is removed from the ARP table.The value range for the aging timeout is 0 to 1,000,000 seconds. Thedefault value is 1200 seconds. To disable aging, specify 0 as the agingtimeout.The local entry for the WX, static entries, and permanent entries in theARP 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 tobe mapped to.4 In the IP Address box, type the IP address for the ARP entry.5 Click Finish.
