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

Ted Lemon <mellon@fugue.com> Sat, 11 November 2017 03:18 UTC

Return-Path: <mellon@fugue.com>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6E2C2129353 for <ipv6@ietfa.amsl.com>; Fri, 10 Nov 2017 19:18:07 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=fugue-com.20150623.gappssmtp.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id L3HeFJ1VWlai for <ipv6@ietfa.amsl.com>; Fri, 10 Nov 2017 19:18:06 -0800 (PST)
Received: from mail-pf0-x231.google.com (mail-pf0-x231.google.com [IPv6:2607:f8b0:400e:c00::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 02D4C128D6F for <6man@ietf.org>; Fri, 10 Nov 2017 19:18:05 -0800 (PST)
Received: by mail-pf0-x231.google.com with SMTP id z80so7941278pff.4 for <6man@ietf.org>; Fri, 10 Nov 2017 19:18:05 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fugue-com.20150623.gappssmtp.com; s=20150623; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=OxE/OR9PQpM2bB1/s2vwl0si+AzmfJosfNnIzuhIczM=; b=lpcYVignNPmEINCxdqDaYHjqwpX9Om5z3yPl3fKMGVtChV7cv8iQQoNxzjyEesdtJj brFEFaodOQ731JwYLJHIPDcCrJEX0B7ovGLWMUw8NVncEfZeGvBYFPGM7nuq6mSjtrE3 x1cS15Ts9ko4693B7OAs34D9ryu21cDa274DSG3cI1VQOTs1retYlJElOLe6gb4SvPIe 12UvTchP27sDMtovVq8wJ9DfWnFh/+mwcdWW+2wd/SPvZ2YxVX8elbo+1GDWgDsXksIL SZtQ2ta1ldsqIKhGWL8lWldvNrwLwE8VLzNEptz8YcuhpJoHehWgjv9Rb+ZxyC30lyiZ qsUg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=OxE/OR9PQpM2bB1/s2vwl0si+AzmfJosfNnIzuhIczM=; b=aSEZir0lXxjLGMn18sz3XXHwxYVchxxnTThuSPtamw0IObrRSD4+v54s8Oq+91b3cL AJkMbqvkg6DIYqdwMh+CRrFVxAVGKS4RZKgi1OqYnGV/iHn5/7bq9mYIlKbooibAgMUl PY4iuq0/pmRnQSA52OqSAQo7ZcGbLLT1/5Rc71qW6Rhm+Np8/9JWasU5xyf2zyhkl3Ll MKVe1vqtb0WQcmk9TVyRy37cbJKAMTwyRGq+T4hYGOfHR7JjaJDBwbGjOejAUVaqrB7g w932Xn41clQO5oW2uw4TgGmlKSEy1aaotVHEiMy6Vgklxjnf9qEnQx+Y6xkj4Bq8CM3/ vmNA==
X-Gm-Message-State: AJaThX48Fmbe2TqO5C2aEkGMWmDEebLVx249dtoVkJr7e+zYs/BOIj6E nSjI9BWK64t1doiNoIWDR4B6uKYQVZY=
X-Google-Smtp-Source: AGs4zMY+VqmbuAq2w9R4hkv37xFtvoc42uOI0ktIn961DaYmrZvoGwW+hARfXVRD5euI6snNZgRZtQ==
X-Received: by 10.99.188.9 with SMTP id q9mr2357901pge.104.1510370285396; Fri, 10 Nov 2017 19:18:05 -0800 (PST)
Received: from ?IPv6:2001:67c:370:1998:3d4c:3e85:23e4:df4c? ([2001:67c:370:1998:3d4c:3e85:23e4:df4c]) by smtp.gmail.com with ESMTPSA id f11sm16658821pgp.48.2017.11.10.19.18.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 10 Nov 2017 19:18:04 -0800 (PST)
From: Ted Lemon <mellon@fugue.com>
Message-Id: <F5C714A6-4987-465F-9154-6D1E39394511@fugue.com>
Content-Type: multipart/alternative; boundary="Apple-Mail=_138C547B-7533-4B55-B610-31F74E69056C"
Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\))
Subject: Re: [v6ops] Stateful SLAAC (draft-ietf-v6ops-unique-ipv6-prefix-per-host)
Date: Sat, 11 Nov 2017 11:18:01 +0800
In-Reply-To: <D36B8133-7258-4EDD-8CA9-85B574D095BC@gmail.com>
Cc: Fernando Gont <fgont@si6networks.com>, IPv6 Operations <v6ops@ietf.org>, "6man@ietf.org" <6man@ietf.org>, "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
To: DY Kim <dykim6@gmail.com>
References: <be9724f5-2ff5-d90c-2749-ecae2c628b78@si6networks.com> <CAKD1Yr0_a2Qm8U4oK+BQU57DeDUD9i-o_+G+YhnH4pVXRxmxxQ@mail.gmail.com> <BBB987EF-D91C-4FD1-9084-21382F24E7BF@gmail.com> <37b58331-ecfc-aaf8-bde4-91dd4d375834@si6networks.com> <029B5A33-0C3F-4021-BA86-50E6DF37F879@gmail.com> <59F47233-62ED-489D-9421-00128C8E7EB2@fugue.com> <D36B8133-7258-4EDD-8CA9-85B574D095BC@gmail.com>
X-Mailer: Apple Mail (2.3273)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/xye9MHQZYZQWcikufLlJH0tBM24>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 11 Nov 2017 03:18:07 -0000

On Nov 11, 2017, at 11:02 AM, DY Kim <dykim6@gmail.com>; wrote:
> Hence, the issue, if any, should be raised against the router spec, not against this draft or even SLAAC, I’d think.

There's clearly an issue.   The router has to preserve the prefix assigned to the host across reboots, or else the host will have to flash renumber.   This would be quite a bit worse than current behavior with SLAAC, and I think is unacceptable.