Re: (sipp) Loopback & SST

Steve Deering <deering@parc.xerox.com> Tue, 19 July 1994 16:40 UTC

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To: "Daniel L. McDonald" <danmcd@sundance.itd.nrl.navy.mil>
Cc: sipp@sunroof.eng.sun.com
Subject: Re: (sipp) Loopback & SST
In-Reply-To: owner-sipp's message of Mon, 18 Jul 94 14:03:00 -0800. <9407182103.aa25696@sundance.itd.nrl.navy.mil>
Date: Tue, 19 Jul 1994 09:18:12 -0700
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From: Steve Deering <deering@parc.xerox.com>
Message-Id: <94Jul19.091825pdt.12171@skylark.parc.xerox.com>
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> With SST taking the all-zeroes prefix for itself, what will happen to other
> well-known SIPP addresses with all-zero prefixes, particularly loopback?

Dan,

See the new addressing spec.  As you surmised, the loopback address did
change.

> One solution might be to move the SIPP loopback address somewhere else in
> the address space.  For example, an all-nodes multicast with intra-node
> scope sounds awfully like a loopback to me, but I'm not multicast expert.

The loopback address may be used a source address, whereas a multicast
adress may not.

> Speaking of loopback, what will be the netmask for such an address?

All ones.

Steve

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