Inverse Address Resolution Protocol
(InARP) Additions to ARP typically used for Frame Relay. [Any other examples of its use?]
Frame Relay stations route frames of a higher level protocol between LANs, across a Permanent Virtual Circuit. These stations are identified by their Data Link Control Identifier (DLCI), equivalent to an Ethernet address in a LAN itself. InARP allows a station to determine a protocol address (e.g. IP address) from a DLCI. This is useful if a new virtual circuit becomes available. Signalling messages announce its DLCI, but without the corresponding protocol address it is unusable: no frames can be routed to it. Reverse ARP (RARP) performs a similar task on an Ethernet LAN, however RARP answers the question "What is my IP Address?" whereas InARP answers the question "What is your protocol address?". See RFC 2390.Last updated: 2000-01-15
Nearby terms:
Inverse Address Resolution Protocol ♦ inverse comment convention
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