Thursday, May 26, 2011

ARP Address Resolution Protocol

ARP (Address Resolution Protocol) is a low-level TCP/IP standard that works at the data-link layerand operates at level 2 of the OSI model.

It is defined by RFC 825.

It resolves the logical IP (Internet Protocol) address to the physical MAC (Media Access Control) address.

It broadcasts the request for the MAC address of all hosts across the network through the ethernet cable.

An ARP Table listing all IP and MAC addresses is maintained my most systems.

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