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From: ddp+@ANDREW.CMU.EDU (Drew Daniel Perkins)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: ARP over FDDI
Message-ID: <0VZHony00UoJ07s0Tz@andrew.cmu.edu>
Date: Fri, 13-Nov-87 06:51:53 EST
Article-I.D.: andrew.0VZHony00UoJ07s0Tz
Posted: Fri Nov 13 06:51:53 1987
Date-Received: Sun, 15-Nov-87 07:34:22 EST
References: <871105210734.397661@MIT-Multics.ARPA>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 7

What's the problem with 16 or 48 bit addresses?  All 802.x networks are like
this.  However, it is clearly specified that you can't have a particular
network with both sizes in use at the same time.  I'll bet FDDI is the same,
though I don't have a spec in hand.  In either case, the hardware length
field in the ARP packet should be used to specify the size.

Drew