Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt> (IP Version 6 Addressing Architecture) to Internet Standard

神明達哉 <jinmei@wide.ad.jp> Fri, 24 February 2017 19:40 UTC

Return-Path: <jinmei.tatuya@gmail.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 DC9951294E1 for <ipv6@ietfa.amsl.com>; Fri, 24 Feb 2017 11:40:34 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.598
X-Spam-Level:
X-Spam-Status: No, score=-2.598 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.001, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 oeAn_5WN2CoX for <ipv6@ietfa.amsl.com>; Fri, 24 Feb 2017 11:40:33 -0800 (PST)
Received: from mail-qt0-x236.google.com (mail-qt0-x236.google.com [IPv6:2607:f8b0:400d:c0d::236]) (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 A4D021294DB for <ipv6@ietf.org>; Fri, 24 Feb 2017 11:40:33 -0800 (PST)
Received: by mail-qt0-x236.google.com with SMTP id b16so25127972qte.0 for <ipv6@ietf.org>; Fri, 24 Feb 2017 11:40:33 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=pyJXtsVr2Ftva4qyKNneTTYQUcuRoDuKlt5fzKAGfDI=; b=P+jIpVMz6duVYjHI+WceeEfSjoEuCRlEPhwLctV/GbFimH/StiuRVnkI/YSRIcDS/v 4TN50tqPY70hpZqhtrsRwH8pP0KMr4WsWWLyhNmA7Im67PEu4cHXKoOB2pM9QsKGsScX a+fjKcMAIGN6ShELMfGD7zQHTpKiWshTyuipoB4m1YFhceM28udJzZGv2hpE9B0I6z+c p/Mx65uXVewAEpNrZG6KLQAT/2CfnsTEsAWkeJxi3WtflCbYmyrhqc7bc0OJTqrJzdsP Ku4ddHwV8xv7zqR4TbD65gr9/Put8xnyrtzhfpXiIUDS/MF69lVq9tCjuDj53Mwrx0i0 kMFA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=pyJXtsVr2Ftva4qyKNneTTYQUcuRoDuKlt5fzKAGfDI=; b=YbxDrnuyOAi0OCbEbtgzpxhZrS8AysH5OjcE0zGokm6VeubiLHwzXgSKIjoCQLWoGY 4QkoCt6lkRODpmlXOSqHLJkfuaBlxrBcfOtU0MzLIRImrrDodB8xn0n3ZJg8irrGMmgZ i/LHjt3uMzt5vm6hEy2yTbwFBz2R7wyWKugR1pt2arLzGbGh0D2NUxejjRyuTJJ0jbXy iAcOaPq8C6zUIXuXuh4qNk7qvQ0NAFtAhUVviCU8LJ2hXgISw55E/SJL7y4otyJWT7U7 78p398u3YAf1p8R/p6iJm0wSB02WinuXY0E//HozIuewDReLqTk2dOWcvkem5YLJVa+t J3Hw==
X-Gm-Message-State: AMke39lZiN/KQ0N1CGdvQNqgAJucl+nWUv+zdJZMfa1+rhskwJZmT0XRWJo1u4s7VkIvrFIK0FvF4o42wAAtgg==
X-Received: by 10.200.56.48 with SMTP id q45mr4551502qtb.220.1487965232549; Fri, 24 Feb 2017 11:40:32 -0800 (PST)
MIME-Version: 1.0
Sender: jinmei.tatuya@gmail.com
Received: by 10.237.61.204 with HTTP; Fri, 24 Feb 2017 11:40:31 -0800 (PST)
In-Reply-To: <b1c3d744-a281-559c-3933-2ab9d2d65225@gmail.com>
References: <20170221001940.GB84656@Vurt.local> <068ce975-8b1e-a7c5-abba-2bfc1d904d70@gmail.com> <20170221101339.GC84656@Vurt.local> <CAKD1Yr33oQb=gMGaEM++hLgmMtxMdihiDrUihEsjs63vy8qRbA@mail.gmail.com> <54c81141-e4f5-4436-9479-9c02be6c09bb@Spark> <CAKD1Yr28iQHt0iuLvR3ndrT3Hfct=4k9dxjJeu3MAjDjOogEvA@mail.gmail.com> <CAL9jLaZgTp++PJ9KGHEWuPoVm6t3b8QfVDCEhz5h4fv-0fuUAA@mail.gmail.com> <CAKD1Yr3SbR=xt3RPu7+q1o14wKuUuwUc6oG+BgZtEK1O+m5sWw@mail.gmail.com> <4936e96b-fc82-4de0-9188-ced9547deb2f@Spark> <CAKD1Yr3K+SJb_4ksZ96yNypVKJE-fXopuVaXNhhKp1gkh1=QEg@mail.gmail.com> <20170222144147.GC89584@hanna.meerval.net> <7960ff2d-359f-429c-6e82-ef592f90bf53@gmail.com> <CAKD1Yr1W+AVt4Dixo9epB5VazxBsVMD+mrshwaE=n7SuX6eGDw@mail.gmail.com> <5ce34926-6bde-6410-9b1e-3f61e48e9a1d@gmail.com> <CAKD1Yr1yRTUPVTTicaTkA8fAFxHiHxdLG8ZzEHjCUDDzKg5zJg@mail.gmail.com> <CAJE_bqe=4KruMwWOnSF7RO7TOQTdx48cG_4uSPkGptkG7R4ckw@mail.gmail.com> <b1c3d744-a281-559c-3933-2ab9d2d65225@gmail.com>
From: 神明達哉 <jinmei@wide.ad.jp>
Date: Fri, 24 Feb 2017 11:40:31 -0800
X-Google-Sender-Auth: ULt_TyDchaIgDJ573xwklpzzLB8
Message-ID: <CAJE_bqfSn2+1NB9v9J5oiefUbLowgOAxV426mGQZPeChKDX8zw@mail.gmail.com>
Subject: Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt> (IP Version 6 Addressing Architecture) to Internet Standard
To: Alexandre Petrescu <alexandre.petrescu@gmail.com>
Content-Type: text/plain; charset="UTF-8"
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/vGP03m7vEi6F7BxkM0Nr8lT4AYU>
Cc: IPv6 IPv6 List <ipv6@ietf.org>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.17
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: Fri, 24 Feb 2017 19:40:35 -0000

At Fri, 24 Feb 2017 15:44:55 +0100,
Alexandre Petrescu <alexandre.petrescu@gmail.com> wrote:

> >> Help he understand, then. There is widely-deployed code that
> >> assumes that the interface ID is 64 and does not work on anything
> >> other than 64 bit prefix lengths.
> >
> > Out of curiosity: which code is it, and exactly what does its
> > assumption mean?  Does it mean, for example, it allows manual
> > configuration of an address but requires its IID length be 64 bits?
>
> For example - is it normal that when manually adding an address to an
> interface w/o specifying the plen, a /64 'connected' route pops there?
> Why 64?  I dont mind the route, but I mind the 64.

I wouldn't interpret this example as such an implementation "does not
work on anything other than 64 bit prefix lengths" in this context,
since "64" is just the default of the implementation and can be
"operationally" changed.  But in any case, I don't know if this
something what Lorenzo meant.

--
JINMEI, Tatuya