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From: tcp-ip@ucbvax.ARPA
Newsgroups: fa.tcp-ip
Subject: Re: subnet addresses
Message-ID: <9453@ucbvax.ARPA>
Date: Mon, 29-Jul-85 18:12:03 EDT
Article-I.D.: ucbvax.9453
Posted: Mon Jul 29 18:12:03 1985
Date-Received: Wed, 31-Jul-85 03:48:55 EDT
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Organization: University of California at Berkeley
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From: CERF@USC-ISI.ARPA

Mark,

I'm with you on that point - to the extent that some of the
address formats encapsulate what turn out to be physical
addresses, we certainly cannot arbitrarily rule out the value
0 when it is a component of a valid embedded physical address.

Of course, had all the IP addresses been "logical" and mapped in
some fashion (who on earth would maintain the table???) then this
might be less a problem.

Vint