Re: [v6ops] [EXTERNAL] Re: Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)

Gert Doering <gert@space.net> Tue, 16 February 2021 15:27 UTC

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Date: Tue, 16 Feb 2021 16:27:29 +0100
From: Gert Doering <gert@space.net>
To: Philip Homburg <pch-v6ops-9@u-1.phicoh.com>
Cc: v6ops@ietf.org, Fernando Gont <fgont@si6networks.com>, "6man@ietf.org" <6man@ietf.org>
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Subject: Re: [v6ops] [EXTERNAL] Re: Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)
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Hi,

On Tue, Feb 16, 2021 at 04:20:14PM +0100, Philip Homburg wrote:
> With ULA, using the ULA as source address is not going to connect you the
> wider IPv6 internet. NAT is unlikely. But there is a good chance that there
> is another IPv6 address that can reach the rest of the internet.

I would not codify this.

Given the failure of dual-GUA multihoming, I expect to see quite a bit
of ULA + double-NPT6 multihoming in the not-so-far-future.

(And yes, it pains me, and I'm happy to be proven wrong.  But my gut
has lots of experience now with "will people use this perfect solution
which is only 80% implemented yet" vs "will they do something that smells
bad, but works right away"...)

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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