Clear IP Resolution Protocol (ARP) Cache

The IP Address Resolution Protocol (ARP) is a list of recently resolved IP addresses. It is used to map to a Media Access Control (MAC) address. The MAC address is the unique physical address embedded in each network adapter. If there is an incorrect ARP high-speed cache, IP datagram may be sent to the wrong computer. To display all mappings in the current ARP cache, run the ARP command by typing arp-a at the command prompt. You will receive the "No ARP Entries Found" message (No ARP Entries are Found) (if the ARP cache is empty), or a response similar to the following: Interface: 10.1.1.3 on Interface 2 Internet Address Physical Address Type10.1.1.7 08-00-02-06-ed-20 dynamic10.1.1.254 08-00-02-0a-a3-10 dynamic: arp-d <IP address> where <IP address> is the Internet address stored in ARP cache. Use this command for each item in the ARP cache until all items are deleted. To learn more about the syntax, options, and usage of ARP commands, type arp-? at the command prompt -?.