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        RFC 1868:

        Title:      ARP Extension - UNARP
        Author:     G. Malkin
        Date:       November 1995
        Mailbox:    gmalkin@xylogics.com
        Pages:      4
        Characters: 7,681
        Updates/Obsoletes:  none

        URL:        ftp://ds.internic.net/rfc/rfc1868.txt


The Address Resolution Protocol allows an IP node to determine the
hardware (datalink) address of a neighboring node on a broadcast
network.  The protocol depends on timers to age away old ARP entries.
This document specifies a trivial modification to the ARP mechanism,
not the packet format, which allows a node to announce that it is
leaving the network and that all other nodes should modify their ARP
tables accordingly.

This memo defines an Experimental Protocol for the Internet
community.  This memo does not specify an Internet standard of any
kind.  Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.

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Joyce K. Reynolds
USC/Information Sciences Institute