Re: Node Requirements: Elevating DHCPv6 from MAY to SHOULD

james woodyatt <jhw@apple.com> Tue, 24 May 2011 16:10 UTC

Return-Path: <jhw@apple.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 5DFF1E073D for <ipv6@ietfa.amsl.com>; Tue, 24 May 2011 09:10:26 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -106.599
X-Spam-Level:
X-Spam-Status: No, score=-106.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100]
Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZOuaxSjJEfdJ for <ipv6@ietfa.amsl.com>; Tue, 24 May 2011 09:10:25 -0700 (PDT)
Received: from mail-out.apple.com (mail-out.apple.com [17.151.62.50]) by ietfa.amsl.com (Postfix) with ESMTP id 7408DE06A3 for <ipv6@ietf.org>; Tue, 24 May 2011 09:10:25 -0700 (PDT)
MIME-version: 1.0
Content-transfer-encoding: 7bit
Content-type: text/plain; CHARSET="US-ASCII"
Received: from relay11.apple.com ([17.128.113.48]) by mail-out.apple.com (Oracle Communications Messaging Exchange Server 7u4-20.01 64bit (built Nov 21 2010)) with ESMTPS id <0LLP00A8GJIIMCP0@mail-out.apple.com> for ipv6@ietf.org; Tue, 24 May 2011 09:10:24 -0700 (PDT)
X-AuditID: 11807130-b7c15ae000005aca-e1-4ddbd870d3a9
Received: from koseret (koseret.apple.com [17.151.62.39]) (using TLS with cipher RC4-MD5 (RC4-MD5/128 bits)) (Client did not present a certificate) by relay11.apple.com (Apple SCV relay) with SMTP id 1B.B4.23242.078DBDD4; Tue, 24 May 2011 09:10:24 -0700 (PDT)
Received: from [66.109.105.147] (unknown [66.109.105.147]) by koseret.apple.com (Oracle Communications Messaging Exchange Server 7u4-20.01 64bit (built Nov 21 2010)) with ESMTPSA id <0LLP00LC7JLAFB50@koseret.apple.com> for ipv6@ietf.org; Tue, 24 May 2011 09:10:24 -0700 (PDT)
Subject: Re: Node Requirements: Elevating DHCPv6 from MAY to SHOULD
From: james woodyatt <jhw@apple.com>
In-reply-to: <201105232348.p4NNmqHJ015491@cichlid.raleigh.ibm.com>
Date: Tue, 24 May 2011 09:10:21 -0700
Message-id: <A85A3891-E078-4F4E-9D85-45B17C61C898@apple.com>
References: <C9F53B85.11BE93%john_brzozowski@cable.comcast.com> <201105232010.p4NKAV9X012654@cichlid.raleigh.ibm.com> <53E999C4-E50D-49C9-9B02-8AD7B5641905@gmail.com> <BANLkTinByCkcvd6=wLE6=9h1xLX16AhPVQ@mail.gmail.com> <201105232111.p4NLBScJ013180@cichlid.raleigh.ibm.com> <BANLkTi=uTPff5Xgb=iCQP+w+x_irriNagQ@mail.gmail.com> <201105232348.p4NNmqHJ015491@cichlid.raleigh.ibm.com>
To: 6MAN <ipv6@ietf.org>
X-Mailer: Apple Mail (2.1227)
X-Brightmail-Tracker: AAAAAA==
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.12
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: <http://www.ietf.org/mail-archive/web/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, 24 May 2011 16:10:26 -0000

On May 23, 2011, at 4:48 PM, Thomas Narten wrote:
> 
> The one downside is that you run DHCP even if there are no DHCP servers. In some environments, that is extra traffic the operator might not want. I recall many long threads about how the cost of those extra DHCP packets on a wireless network were unacceptable.

Yes, and if we'd like to rehash those arguments again, then I stand ready to defend that proposition.


--
james woodyatt <jhw@apple.com>
member of technical staff, core os networking