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

Lorenzo Colitti <lorenzo@google.com> Mon, 13 November 2017 02:16 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Mon, 13 Nov 2017 11:15:48 +0900
Message-ID: <CAKD1Yr1PjQPvAd0HDNEZGCAbJ9vxbHnR8Xsuvw-cwgcp5pRcng@mail.gmail.com>
Subject: Re: [v6ops] Stateful SLAAC (draft-ietf-v6ops-unique-ipv6-prefix-per-host)
To: Nick Hilliard <nick@foobar.org>
Cc: Fernando Gont <fgont@si6networks.com>, james woodyatt <jhw@google.com>, IPv6 Operations <v6ops@ietf.org>, Joe Touch <touch@strayalpha.com>, "6man-ads@tools.ietf.org" <6man-ads@ietf.org>, "v6ops-ads@ietf.org" <v6ops-ads@ietf.org>, draft-ietf-v6ops-unique-ipv6-prefix-per-host@tools.ietf.org, "6man@ietf.org" <6man@ietf.org>
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On Sun, Nov 12, 2017 at 9:56 PM, Nick Hilliard <nick@foobar.org>; wrote:

> > Now, consider the FSM of router side of SLAAC, and compare it with the
> > FSM of the mechanism being proposed. The difference should be evident.
>
> The ID also omits any discussion about how this state is managed in the
> context of source address validation by edge devices.
>
> This would be important from an operational point of view, as it
> introduces a substantial degree of state management into the network
> infrastructure, not just the next-hop router.
>

Sure, but I don't think that issue is in scope for this document. DHCPv6 PD
has exactly the same issue, and AFAIK the solution(s) to that issue are not
documented in any RFC.