Complete Protocol dictionary, glossary and reference

ARP: Address Resolution Protocol

Address Resolution Protocol (ARP) performs mapping of an IP address to a physical machine address (MAC address for Ethernet) that is recognized in the local network. For example, in IP Version 4, an address is 32 bits long. In an Ethernet local area network, however, addresses for attached devices are 48 bits long.

Standard Organization

IETF

Related Document

RFC 826