Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!udel!haven!decuac!shlump.nac.dec.com!mountn.dec.com!ramblr.enet.dec.com!moroney
From: moroney@ramblr.enet.dec.com
Newsgroups: comp.sys.dec
Subject: Re: DECNET MAC address use query
Message-ID: <2022@mountn.dec.com>
Date: 14 Nov 90 02:15:20 GMT
Sender: news@mountn.dec.com
Organization: Digital Equipment Corporation
Lines: 12

In article <1990Nov12.155501.23342@gdr.bath.ac.uk> P.Smee@bristol.ac.uk (Paul Smee) writes:
>We also hear rumours that AA-00-04-... machines may under some
>use AA-00-03-<same thing>.  (AA-00-03-... is registered
>as 'Global physical address for some DEC machines' -- or, in other
>words, is assigned to DEC.)

Very old DEUNAs and DEQNAs may have address ROMs that have AA-00-03 (and maybe
some other AA-00-xx addresses).  Since IEEE has redefined the second bit of
the first byte as "locally administrated address space" DEC no longer uses
these address for new address ROMs, since these addresses have this bit set.

-Mike Moroney