Re: The TCP and UDP checksum algorithm may soon need updating

Craig Partridge <craig@tereschau.net> Thu, 04 June 2020 20:16 UTC

Return-Path: <craig@tereschau.net>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A3FE23A0F20 for <ietf@ietfa.amsl.com>; Thu, 4 Jun 2020 13:16:26 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, 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=tereschau.net
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 7FlaBBojaIgb for <ietf@ietfa.amsl.com>; Thu, 4 Jun 2020 13:16:25 -0700 (PDT)
Received: from mail-qk1-x72a.google.com (mail-qk1-x72a.google.com [IPv6:2607:f8b0:4864:20::72a]) (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 41F1B3A0F1E for <ietf@ietf.org>; Thu, 4 Jun 2020 13:16:25 -0700 (PDT)
Received: by mail-qk1-x72a.google.com with SMTP id w3so7512412qkb.6 for <ietf@ietf.org>; Thu, 04 Jun 2020 13:16:25 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tereschau.net; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8jp1R8YLbvnZrpzCHJp+FlqDc4sl6McuUg3xHOwdbNw=; b=cKNvUYPBK/fZhBCZ6o9eq3NjzyXRl6ENXr/La3xeGYQ+yg2qQPr8rhzuUz6VPK3232 bAxbINeUoK8hrUvjXYLKnfy9dHWRgjhNuFuVHzA7G+eYSmtJn6JHXTboMdXEI+XaaJFR 5bY+RkTo78aKFY7Gpo8z8c7Hazg0XnVeZwB79EqhhY/T+aGy+xLdoj6iygopUybV/S1+ rVFzg/PAXF0coZHFF3WvAU6RC27QDVznDi382V4jyXlFgYcpuoFgFBAb/lS5+TYqcEiS uMTtEXTigpJibMS/+MEzq/3ihr596gXBOVP2eq2jBDP+Ix4q+Nk9A0vrrQyEM4zHWN0J Kcmw==
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=8jp1R8YLbvnZrpzCHJp+FlqDc4sl6McuUg3xHOwdbNw=; b=smrE4q9dF5eLgxOr5JpOL0s5Pbuhhwgl5xvu0oFUyiSg3JGSPdsBR2wjLEyP/7pviD 3wUd98O2XCMCuH4TzECisefn1DqB7EEhkAWRRi1idMfI/PzJZBzX8JHCr4DjylZORuKu VyeTu/DZUAgwogWgJP9IQvLgdwTvAtrZBdC22fK3T+3/m5TAREF4X6KvTdQsBPPW5vuJ z+CjxpjDB1jwnU0lRjX6Bzu5/eHFDCUjdyN5kj8PI0XsNolpQZ3Y1GxpO0+pKozhuwiH w7LemaKB0dcNosV3+vTQQfIBFJ08TIaV939lewTXGHIRbeBgJiA/GKGI8ytkSBScwkpg dAvQ==
X-Gm-Message-State: AOAM532aH3D86RLHwGZX1LU17nPUmOQEMhxNHJ5XKUOjfK8P1XsQey8Z 41IwtzciUUAlq/iCs/ggFMqwwMnl4rp/IhsJnvfjntFq
X-Google-Smtp-Source: ABdhPJzMLvLhTzALmnJSardqzN7Ow8CXttZBU5BzHhjiAcUCmVR0yzQjjmHsg1pHu8kt2SxbTbeO1oUhVMNu3nMdRtk=
X-Received: by 2002:a05:620a:21d4:: with SMTP id h20mr6497109qka.288.1591301784014; Thu, 04 Jun 2020 13:16:24 -0700 (PDT)
MIME-Version: 1.0
References: <CAHQj4Cf_vgXYEL=x4DCEnpwNxZpJQSD-h6MWmhMWpYwPF9XFow@mail.gmail.com> <E23EC459-213F-4D19-BC1B-6050EC2CB653@strayalpha.com>
In-Reply-To: <E23EC459-213F-4D19-BC1B-6050EC2CB653@strayalpha.com>
From: Craig Partridge <craig@tereschau.net>
Date: Thu, 4 Jun 2020 14:16:05 -0600
Message-ID: <CAHQj4CcOpciujCP9ugegjEjzyT7Oqzv_WtjWyTAGacUxkG9YYg@mail.gmail.com>
Subject: Re: The TCP and UDP checksum algorithm may soon need updating
To: Joe Touch <touch@strayalpha.com>
Cc: ietf@ietf.org
Content-Type: multipart/alternative; boundary="00000000000091281905a747d1c4"
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf/omsb3Y4FdY9i6Z9Vt_LOG2H3Ax8>
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ietf/>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 04 Jun 2020 20:16:27 -0000

Ah, I somehow had missed that.

Looks like it does the trick if we need it. Not sure if we'd have to update
the optional checksum to use a new checksum too.

Craig

On Thu, Jun 4, 2020 at 1:33 PM Joe Touch <touch@strayalpha.com> wrote:

> See draft-ietf-tsvwg-udp-options
>
> > On Jun 4, 2020, at 12:13 PM, Craig Partridge <craig@tereschau.net>
> wrote:
> >
> > Then there's UDP.  UDP has no options.
>


-- 
*****
Craig Partridge's email account for professional society activities and
mailing lists.