Re: [v6ops] Extension Headers / Impact on Security Devices

Mark ZZZ Smith <markzzzsmith@yahoo.com.au> Tue, 19 May 2015 23:09 UTC

Return-Path: <markzzzsmith@yahoo.com.au>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0F2AD1B350B for <v6ops@ietfa.amsl.com>; Tue, 19 May 2015 16:09:31 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 0.502
X-Spam-Level:
X-Spam-Status: No, score=0.502 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, FROM_LOCAL_NOVOWEL=0.5, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=1, HK_RANDOM_REPLYTO=0.999, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=no
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 3qx7N5yO3osf for <v6ops@ietfa.amsl.com>; Tue, 19 May 2015 16:09:29 -0700 (PDT)
Received: from nm1-vm1.bullet.mail.bf1.yahoo.com (nm1-vm1.bullet.mail.bf1.yahoo.com [98.139.213.163]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 861281B3507 for <v6ops@ietf.org>; Tue, 19 May 2015 16:09:29 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com.au; s=s2048; t=1432076968; bh=ZlDhnfDcmH6OH24oLGvJQKf5EjgaFIE4VDVWuyZgldc=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:From:Subject; b=itmwB5Folyy1sLyzcm64lD3bnIVBh7s0e4dZmHH3QWGZ6Tb9LyukOXCkINv1qtW16egqArwy+Xl5AQcGzTgFCy8kZfo94aqe6LQMxXJD4u39Eqz1MovSCfCBsKqxNBPTu5e4UWzUZH+neeWefcXpjNzIOLgqZVqVm2mVacRg6N6kl2Nlm0XwUYrwnVIWjBw0EtH/ULv4IakJx+FypIxh2AW0AQL+3BVykdROLPn+aQJXymjlsS4pE6v5diNjKCKN36Xb7RrD7vJov/n1gILB40miUfunEY9IFj7M0pBLbYDtlhhxiPKj5osSaYWX+Sq4c14T6ZRDjBXp29gkALtfvw==
Received: from [98.139.215.143] by nm1.bullet.mail.bf1.yahoo.com with NNFMP; 19 May 2015 23:09:28 -0000
Received: from [98.139.212.219] by tm14.bullet.mail.bf1.yahoo.com with NNFMP; 19 May 2015 23:09:28 -0000
Received: from [127.0.0.1] by omp1028.mail.bf1.yahoo.com with NNFMP; 19 May 2015 23:09:28 -0000
X-Yahoo-Newman-Property: ymail-3
X-Yahoo-Newman-Id: 401170.85204.bm@omp1028.mail.bf1.yahoo.com
X-YMail-OSG: ErZtzMMVM1myIqYgotk_1KhK_ZNyz9c2wo5OZ6ERPvd9bpgZ26_jeyIjoZJUXVv xSg1gW_gC5bWe0dnsWJ6RgT0h6TTnE9zgI.xZyplTLhq.wZKJK5XTTTpai19i7MpJ7cD_raaGPsl hDeHRXOktaKaDMX6M.obKrPifgfUOtKiM9C8xT28R84WWAFu8u2JAtoOglhpxYp7QEgDUyV3l3cI Esy5fSFY0nNzMqnvrjY5mPEwsAsMv4p7OfkOWkaLL1NrYCDdskHpBr_go_6CkmGaWyaEHbdYD1FP vftoEZ_3NEE1e4S.r4CzMXiJI1wNQ1X_fikszfLpZvqS09pZT2RboahnWqE8HYMpfOkoPltouZ7u g0IOhz_VklLcDsLgiytt7C4QsG7Oecel0vg5fsLamVoElpv1x4DTx_FEIHsuFYOLek6nUsROVccw NR65Yg1_ZknUG6LQ.dClaa3ylimEt5iiUdBynxVXdqE1i3ZF2ZgIJCpNiYQK1efy5Qn8hw3AypKm GzExkv4BANFq0Lu__xyYgc29zdzLQjpQgftokXRf2cg--
Received: by 66.196.80.149; Tue, 19 May 2015 23:09:27 +0000
Date: Tue, 19 May 2015 23:09:12 +0000 (UTC)
From: Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
To: Gert Doering <gert@space.net>
Message-ID: <66133361.2848561.1432076952679.JavaMail.yahoo@mail.yahoo.com>
In-Reply-To: <20150516211840.GJ54385@Space.Net>
References: <20150516211840.GJ54385@Space.Net>
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="----=_Part_2848560_466985012.1432076952670"
Archived-At: <http://mailarchive.ietf.org/arch/msg/v6ops/ad2PX-0ugnU5D4O6LmjB_zASaUs>
Cc: "v6ops@ietf.org" <v6ops@ietf.org>
Subject: Re: [v6ops] Extension Headers / Impact on Security Devices
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
Reply-To: Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 19 May 2015 23:09:31 -0000

      From: Gert Doering <gert@space.net>
 To: Mark ZZZ Smith <markzzzsmith@yahoo.com.au> 
Cc: Enno Rey <erey@ernw.de>de>; "v6ops@ietf.org" <v6ops@ietf.org> 
 Sent: Sunday, 17 May 2015, 7:18
 Subject: Re: [v6ops] Extension Headers / Impact on Security Devices
   
Hi,

On Sat, May 16, 2015 at 01:22:26AM +0000, Mark ZZZ Smith wrote:
> So quickly, how have IPv4 options been handled? 
> They too can vary the location of the TCP/UDP etc. headers in an IPv4 packet. 

"Drop packets with IP options".
/ So you're actively doing that? I've configured routers to drop IPv4 packets with source route options, but not IPv4 packets with any options.

> How have the variety and variable number of TCP options been handled? They 
> too can vary the location of the TCP segment payload.

But they do not move the location of the TCP port info.
/ So what do you do with non-TCP or UDP traffic, that doesn't have port numbers? Drop that too?
/ What particular problem are you trying to solve with forwarding plane ACLs? Dropping DDoS traffic? How would you handle a DDoS that doesn't use TCP or UDP, or for which the TCP/UDP ports aren't accessible?


Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

SpaceNet AG                        Vorstand: Sebastian v. Bomhard
Joseph-Dollinger-Bogen 14          Aufsichtsratsvors.: A. Grundner-Culemann
D-80807 Muenchen                  HRB: 136055 (AG Muenchen)
Tel: +49 (0)89/32356-444          USt-IdNr.: DE813185279