Re: draft-ietf-6man-icmp-limits-05

Bob Hinden <bob.hinden@gmail.com> Mon, 16 September 2019 21:10 UTC

Return-Path: <bob.hinden@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 86E091200F5 for <ipv6@ietfa.amsl.com>; Mon, 16 Sep 2019 14:10:14 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.999
X-Spam-Level:
X-Spam-Status: No, score=-1.999 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, 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 TlR5SSnUT38f for <ipv6@ietfa.amsl.com>; Mon, 16 Sep 2019 14:10:12 -0700 (PDT)
Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) (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 52665120041 for <6man@ietf.org>; Mon, 16 Sep 2019 14:10:12 -0700 (PDT)
Received: by mail-wm1-x32d.google.com with SMTP id r195so762569wme.2 for <6man@ietf.org>; Mon, 16 Sep 2019 14:10:12 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=D6J1KbEyCgIp7VPoIK5e+Oj3n16pHdKs7nTaaeOcm6g=; b=D4V+LYjRpfvZhFqS5Au1DlktfZc5QHVSPd2Q3kmNmUYThfn8eFwIvzusJ2HnStE+BY uVEt1JyJDZbffHYo1+uGo+1Wvu9aZ1/caU85a7oqaLfp+k3CX1PLGRW0opFB8tdvJq60 eq4ZxNs2697F1Es9aGJ+9DchQAbMwE+ty4+xY0J+o3ygwNuq4IljMyzBAdosNefqpvrh xpGZSQ5FU+X1vFE1DvyfTdygZQA0fRyuzpzpawOyuThRWr9MCZEYGnMd+p5VPssPPBKs OGhkmJ4kj18fDRUyQF2nwVTKfWfaRvcAvwNPJcWhEI4QDrpd/OZThsIeUihGxJwj9lU/ YbfQ==
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=D6J1KbEyCgIp7VPoIK5e+Oj3n16pHdKs7nTaaeOcm6g=; b=eELAhzpMllH9yiu1nBRY/o3GdGu1c1zj8ytQRF4KxnRbgHCR5+8k5lZKMskA14VWg9 Osh30XVyTB0CZBuBTiMRZPeEvioSt5SRHUoXjN1iBFLaXRwP0sIF79cSU8PwYiqTfuHd DSmx5k3Zqs5Y3sjF/Y/7DsFjQbjFwNiLyoC1eUaWv6KOwy0Q7t1+gpLMBmYKjnrpfr+Y BqqdTSF3XbMbYEAu7W1t6AMrK9nHhxghf1i2ODUf9wRwP07XwJatjZ8NG9TrM6Ui0HSA 0Rq49BNV3dvxs1xdtY26b52Prh6FXoH5auINq/ihB8JQg3UpSJz1Ur1IEL5bV1c/doI3 /4sg==
X-Gm-Message-State: APjAAAXDCzMYFlmVOuCBF6JWkUoIGdODPBjytnGtqRv50BpoDS0fVmwj f0SdMkdihLtwlWC6WUUgjK0=
X-Google-Smtp-Source: APXvYqyeErSfEns9vpgBbmzIBD3O0mj1LZWETFb7LtTL+YAOdn+/2F5rkmgdzZMxJ912FdSwPXzW0g==
X-Received: by 2002:a1c:608b:: with SMTP id u133mr732058wmb.27.1568668210877; Mon, 16 Sep 2019 14:10:10 -0700 (PDT)
Received: from ?IPv6:2601:647:5a00:ef0b:4087:ba72:6d5c:8a78? ([2601:647:5a00:ef0b:4087:ba72:6d5c:8a78]) by smtp.gmail.com with ESMTPSA id w12sm301867wrg.47.2019.09.16.14.10.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 16 Sep 2019 14:10:10 -0700 (PDT)
From: Bob Hinden <bob.hinden@gmail.com>
Message-Id: <17B9B735-94F3-405B-9885-21427E9628FD@gmail.com>
Content-Type: multipart/signed; boundary="Apple-Mail=_1315C59C-010C-433E-BBB4-C0ECFD256763"; protocol="application/pgp-signature"; micalg="pgp-sha512"
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\))
Subject: Re: draft-ietf-6man-icmp-limits-05
Date: Mon, 16 Sep 2019 14:10:06 -0700
In-Reply-To: <BYAPR05MB5463C784BD5C5DCD52AAE425AE8C0@BYAPR05MB5463.namprd05.prod.outlook.com>
Cc: Bob Hinden <bob.hinden@gmail.com>, 6man <6man@ietf.org>, Tom Herbert <tom@herbertland.com>
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
References: <BYAPR05MB5463C784BD5C5DCD52AAE425AE8C0@BYAPR05MB5463.namprd05.prod.outlook.com>
X-Mailer: Apple Mail (2.3445.104.11)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/_V7f5COrV4RRlut5dB-UBJEWs8U>
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: Mon, 16 Sep 2019 21:10:15 -0000


> On Sep 16, 2019, at 11:48 AM, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org> wrote:
> 
> Tom,
> 
> In draft-ietf-6man-icmp-limits-05, you propose sending and ICMP Parameter Problem message when the following errors occur:
> 
>          - Extension header too big
>          - Extension header chain too long
>          - Too many options in extension header
>          - Option too big
> 
> However, you send an ICMP Destination Unreachable message in response to aggregate header limits.
> 
> Why not send an ICMP Parameter Problem message in cases?

Good question.  It would make the draft simpler and avoid having to create RFC4884 extension headers.

Bob


> 
>                                                                                          Ron
> 
> 
> Juniper Business Use Only
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------