Path: utzoo!attcan!uunet!samsung!uakari.primate.wisc.edu!sdd.hp.com!ucsd!ucbvax!xyplex.com!stewart
From: stewart@xyplex.com (Bob Stewart)
Newsgroups: comp.protocols.tcp-ip
Subject: Duplicate Internet address on same network
Message-ID: <9006111638.AA19784@xap>
Date: 11 Jun 90 13:38:36 GMT
References: <4988@plains.UUCP>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15

The Ethernet AA-00-04 indicates a DECnet node, with its Ethernet address
"locally administered" to contain the DECnet node number.  You'll find the
fourth byte is a zero.  The last two bytes are the DECnet node number, in, of
course, little-endian form.  The high order 6 bits of the last byte are the
DECnet area.  The rest of the bits are the DECnet node within that area.

(This should be close, its from memory and looking at a sample of one DECNet
node.)

	Bob

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Bob Stewart (rlstewart@eng.xyplex.com)
Xyplex, Boxborough, Massachusetts
(508) 264-9900