Path: utzoo!attcan!uunet!husc6!bloom-beacon!mit-eddie!ll-xn!ames!pasteur!ucbvax!park-street!brescia
From: brescia@park-street (Mike Brescia)
Newsgroups: comp.protocols.tcp-ip
Subject: multicast address(es) for ARP (was: a proposed modification ...)
Message-ID: <8807181805.AA10006@ucbvax.Berkeley.EDU>
Date: 18 Jul 88 14:55:08 GMT
References: <88.07.15.1402.140@pescadero.stanford.edu>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 11

An idea I have heard is to use as the multicast address for
"ARP-FOR-PROTOCOL-X" is <4-bytes-of-multicast-prefix><X>, i.e.
    ARP-for-IP     01-00-5e-00-08-00
    ARP-for-CHAOS  01-00-5e-00-08-04.

If you are a host listening for ARP on protocol X, you fire that up.  That
means IP requires 2 multicast filter slots to get off the ground (1 for ARP,
one for 'IP-all-hosts'), plus any other multicast groups that it may join,
plus multicast groups for other protocols (ISO-all-hosts, etc...)

Mike Brescia