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Re: [homenet] Let's make in-home ULA presence a MUST !?

Ted Lemon <mellon@fugue.com> Tue, 14 October 2014 16:23 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Tue, 14 Oct 2014 11:23:06 -0500
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To: Gert Doering <gert@space.net>
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Cc: Erik Kline <ek@google.com>, HOMENET Working Group <homenet@ietf.org>, Pierre Pfister <pierre.pfister@darou.fr>
Subject: Re: [homenet] Let's make in-home ULA presence a MUST !?
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On Oct 14, 2014, at 10:46 AM, Gert Doering <gert@space.net> wrote:
> In the end, at some point in time, the old prefix goes away, however
> you phase it.  So if the application stubbornly clings to it, it will stop
> working.

This is correct, but if you have a preferred and a deprecated prefix, the stack will automatically choose the preferred prefix.   And if your ISP deprecates the prefix rather than withdrawing it, chances are that by the time it expires, there won't be any applications using it.

So please don't gloss over the distinction between graceful renumbering and flash renumbering.  IPv6 was designed to do graceful renumbering, and the claim that flash renumbering is no different is a major step backward from the functionality that was designed into IPv6.

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