!!! Overview [{$pagename}] (ARP) is a [communication] [protocol] used for discovering the [Link Layer] address, such as a [MAC Address], associated with a given internet layer address, typically an [IPv4] address. This mapping is a critical function in the [Internet Protocol Suite]. [{$pagename}] was defined in 1982 by [RFC 826]. [ARP] has been implemented with many combinations of [Network Layer] and [Data-link Layer] technologies, such as: * [IPv4] * [VINES] * [Chaosnet] * [DECnet] * Xerox [PARC] Universal Packet (PUP) using [IEEE 802] standards, * [FDDI] * [X.25] * [Frame Relay] * [Asynchronous Transfer Mode] ([ATM]) * [AppleTalk] (AARP) In Internet Protocol Version 6 ([IPv6]) networks, the functionality of [ARP] is provided by the [Neighbor Discovery Protocol] ([NDP]). !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }]