Monitoring and Maintaining ARP Information
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Overview: Address Resolution Protocol (ARP) is an Internet protocol used to map an IP address to a Media Access Control (MAC) address. ARP finds the MAC address, known as the hardware address of an IP-routed host from its known IP address, maintains this mapping information in a table. Development of additional ARP information monitoring and maintenance capabilities is an incremental step within an overall program to improve the management tools for ARP support in a Cisco IOS environment. The ARP debug trace facility is enhanced to enable ARP packet debug trace for individual types of ARP events.