What is the Reverse Address Resolution Protocol (RARP)? Reverse Address Resolution Protocol (RARP) is a link layer networking protocol that is used by a host computer system which obtain its IP address once it has available its link-layer address, like Ethernet address. RARP needs one or more servers to host for maintaining a database or mappings from link layer address to protocol address. Serving only IP address was the limitation of RARP. An RARP can be used at startup of a diskless machine for finding its IP address.
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