Re: [v6ops] Stateful SLAAC (draft-ietf-v6ops-unique-ipv6-prefix-per-host)

Ted Lemon <mellon@fugue.com> Mon, 13 November 2017 10:01 UTC

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From: Ted Lemon <mellon@fugue.com>
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Subject: Re: [v6ops] Stateful SLAAC (draft-ietf-v6ops-unique-ipv6-prefix-per-host)
Date: Mon, 13 Nov 2017 18:01:22 +0800
In-Reply-To: <907BA572-3C7E-4395-A097-A73EE01D7A05@employees.org>
Cc: Lorenzo Colitti <lorenzo@google.com>, Fernando Gont <fgont@si6networks.com>, "v6ops@ietf.org WG" <v6ops@ietf.org>, "6man@ietf.org" <6man@ietf.org>, "Van De Velde, Gunter (Nokia - BE/Antwerp)" <gunter.van_de_velde@nokia.com>
To: Ole Troan <otroan@employees.org>
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On Nov 13, 2017, at 4:30 PM, Ole Troan <otroan@employees.org>; wrote:
> Well, we've really never specified how route injection should work on relays in PD.
> RFC3633 does only specify the mechanism where the RR and DR are directly connected.

While true, this isn't the same sort of problem.   We have specified how state is retained, and the information is available both when the assignment occurs and thereafter, using leasequery.   It would be nice if it were explicitly said somewhere "snoop in the packet as it goes by, use leasequery to recover state," but routers do that anyway, and there isn't an interop problem because there aren't multiple ways to do it.