multicast address(es) for ARP (was: a proposed modification ...)


Mike Brescia (brescia@park-street)
Mon, 18 Jul 88 10:55:08 -0400


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



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