IETF Logo Mail Archive

Re: Confirmation to advance: draft-ietf-6man-ipv6only-flag-05

Brian Carpenter <brian.e.carpenter@gmail.com> Tue, 28 May 2019 06:34 UTC

Return-Path: <brian.e.carpenter@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 BC53F120119 for <ipv6@ietfa.amsl.com>; Mon, 27 May 2019 23:34:06 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.997
X-Spam-Level:
X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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 HeHQvOXUypKL for <ipv6@ietfa.amsl.com>; Mon, 27 May 2019 23:34:05 -0700 (PDT)
Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) (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 244441200A1 for <ipv6@ietf.org>; Mon, 27 May 2019 23:34:05 -0700 (PDT)
Received: by mail-ed1-x52f.google.com with SMTP id a8so30045130edx.3 for <ipv6@ietf.org>; Mon, 27 May 2019 23:34:05 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=DIiIWesmynlvNUWEyPid2NrBBeXBfs03YbJzukyNNHU=; b=MMwcoEBWD/aFPw5CQQh+8pWXCDyxsvTQMM9s2sNmDmsHdKLmkLZB6kd3xazcWPs6Tf rVwx7lm3mrph2vwT6DuEY6WuTwnThSbdiyNXWOwd36h22WfzkIFgQc4K+WGlpndvA3/R IKOjWBe3r92uUgWiMpjZcse1PZQ82t+SaIvh0B3RHC+K0Om/lOGWGdZEoUx5NupwNZDZ f1KF/Q5ubp3oaJ/da4dh6y8PXkwmc4x6bEfcfiRtFzuo6nlHpQCwOaLzQBK7EHD9/XxB t2v9yx/sf6VXFFvkIpCuUBXF+fiWIlDfOyvtGKk1muDLoXY91UibrquPxIu9tbBUV16a H18A==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=DIiIWesmynlvNUWEyPid2NrBBeXBfs03YbJzukyNNHU=; b=cFSk9vKK4Jo1IolH2UHuIED2kLdMehgCXHLDUaf54peXHwkvsSByfVlc8f7zbIM3AA VbcY8GyXgYZu3y+3s/8In40sP6azmTOdPwjb6X/yhE09FQe2IzLxDwRvgSJ+Riizrb6m RlGoRRLR2nxQkto06Ed2EWRf27BowEfcz85k1PyX/HfS88cW/NMmdQycAPT4lLbm6bXZ 0VqjxAQRlsJT3dII3jt4Tp+C5RyG/hcTsS/dCpc8PBBlhy3Nb2Yx3ZXqnSpGp6vIS0pb K1LjVN4V1GcicmuV7eOByrNaPcjKHDWIT6FxJj92j+yiTpXoYAVFLeVZrfGjXiHyrwSS qZqQ==
X-Gm-Message-State: APjAAAVzyYh38A7yhDL6mHXSLedWP/HIdCp6R2Pe3Wec+dvMcMfLdZb7 T1jFtW40dT3ogV9fM5D699JpNepiVNrN8B5ZZp0=
X-Google-Smtp-Source: APXvYqw5kxNFP1tRFExa/SifBi8BIna8fq9/lVsFMqFZGZMLrTW9y6u8f03vn/B/86+/iK835Xow3Fy6raiDU4d/aeE=
X-Received: by 2002:a17:906:d212:: with SMTP id w18mr32522334ejz.289.1559025243640; Mon, 27 May 2019 23:34:03 -0700 (PDT)
MIME-Version: 1.0
References: <F8BFFCAD-E58E-4736-8A1C-56579B6F6032@employees.org> <m1hPqHO-0000J8C@stereo.hq.phicoh.net> <CAN-Dau3R=4JbcbK7tWkJKYzVjq7DvAAEjVsbCLbZdYYO8OJ0YA@mail.gmail.com> <m1hQ7Dm-0000M3C@stereo.hq.phicoh.net> <CAN-Dau040j6U+1CCn0QJiVMy2nVShHqqSFdCkM-FbMAH-2wjRA@mail.gmail.com> <m1hQCYr-0000KBC@stereo.hq.phicoh.net> <561d9dc3-c769-c774-8f65-f975ac2a10a0@gont.com.ar> <m1hT1DZ-0000HEC@stereo.hq.phicoh.net> <ce07ade8-5105-055f-4798-f4ef20a2393c@si6networks.com> <CAN-Dau02MYCrKx2BgyuYJeHBdoz6SHCnp+-byM+LMM8af0S+rA@mail.gmail.com> <40e99171-6dda-29e3-6152-da5ca5219ed9@foobar.org> <CAN-Dau0ALqfAA-Dz56oHAfOtY7E2obx5E7TgoeH357Mckp3t9g@mail.gmail.com> <093ba8e2-6f0a-4c91-9df1-cda33fffea97@foobar.org> <CAN-Dau3kVqb+ZEHB7iPGeRuq1Mu8UHR3FEZv8SgmiqZexaFhuA@mail.gmail.com> <12db9629-f92a-e12a-5ff1-7db2c5d2137e@foobar.org> <CAN-Dau0EGN+bLZCTA-A4ksd40KprhKn-HkL4gotG=v-=kD0zrg@mail.gmail.com> <F6F0C9DC-545E-4FE5-BB4C-55BB29022E84@steffann.nl> <e191d0f2-235b-bc97-2a02-878783c4c308@gmail.com> <493A8D91-BEDB-4699-BF67-550CE110FEB8@steffann.nl>
In-Reply-To: <493A8D91-BEDB-4699-BF67-550CE110FEB8@steffann.nl>
From: Brian Carpenter <brian.e.carpenter@gmail.com>
Date: Tue, 28 May 2019 16:33:51 +1000
Message-ID: <CANMZLAY_KEG9zct6JW2XdAU9hruZq7UBS36-3eHMDSgkXZDKmQ@mail.gmail.com>
Subject: Re: Confirmation to advance: draft-ietf-6man-ipv6only-flag-05
To: Sander Steffann <sander@steffann.nl>
Cc: David Farmer <farmer@umn.edu>, 6man WG <ipv6@ietf.org>
Content-Type: multipart/alternative; boundary="000000000000d7d70e0589ecd932"
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/P1uHgMb9uLnKfJZ9hRUvrOKaqho>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
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: Tue, 28 May 2019 06:34:07 -0000

Is that really a question we need to answer today? istm that this flag, if
approved today & implemented tomorrow, is a tool for operators many years
in the future, beyond what we can analyse today.

Regards
    Brian
    (via tiny screen & keyboard)

On Tue, 28 May 2019, 10:06 Sander Steffann, <sander@steffann.nl> wrote:

> Hi Brian,
>
> > Well, yes. But if an operator chooses to filter 0x0800 and wishes to
> actively
> > inform hosts that IPv4 is unavailable, only an IPv6 mechanism can do so.
> > So here we are.
>
> Why would an operator choose that? What operational problem is being
> solved?
>
> Cheers,
> Sander
>
>
>

v2.23.0 | Report a Bug | By Email