RE: 3484bis and privacy addresses

"Eric Vyncke (evyncke)" <evyncke@cisco.com> Tue, 27 March 2012 08:38 UTC

Return-Path: <evyncke@cisco.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 8CAFC21F890C for <ipv6@ietfa.amsl.com>; Tue, 27 Mar 2012 01:38:13 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -10.442
X-Spam-Level:
X-Spam-Status: No, score=-10.442 tagged_above=-999 required=5 tests=[AWL=0.157, BAYES_00=-2.599, RCVD_IN_DNSWL_HI=-8]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zKavYMmvEgax for <ipv6@ietfa.amsl.com>; Tue, 27 Mar 2012 01:38:12 -0700 (PDT)
Received: from ams-iport-1.cisco.com (ams-iport-1.cisco.com [144.254.224.140]) by ietfa.amsl.com (Postfix) with ESMTP id 94F6E21F889D for <ipv6@ietf.org>; Tue, 27 Mar 2012 01:38:12 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=evyncke@cisco.com; l=1647; q=dns/txt; s=iport; t=1332837492; x=1334047092; h=mime-version:content-transfer-encoding:subject:date: message-id:in-reply-to:references:from:to; bh=PFb4M+MYSSz60lyq54m6XUqjKN5OdfWyGUiKr4PsBcc=; b=TZ3/v76lrLmKnWVFyaunQBVWi9BylKD4izEbe8ZX2sFDUYEDiOI6CCB9 +B6CHhJ5ZDpnQeERUpYhS5SVjgQbOQtHs5rWzmTXvudcuEdVjUd8JpUUw Nb17zjseX43wynUqIC/A/pU4Ob6onQlGU9rvYvLWGhVTL1CVXOldpXQPu c=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: Av8EAEF8cU+Q/khL/2dsb2JhbABFuEiBB4IJAQEBBAEBAQ8BHQo0FwQCAQgRBAEBCwYXAQYBJh8JCAEBBAESCBqHaAuaOZ8TBJAsYwSkJoFogmk
X-IronPort-AV: E=Sophos;i="4.73,656,1325462400"; d="scan'208";a="133446531"
Received: from ams-core-2.cisco.com ([144.254.72.75]) by ams-iport-1.cisco.com with ESMTP; 27 Mar 2012 08:37:54 +0000
Received: from xbh-ams-201.cisco.com (xbh-ams-201.cisco.com [144.254.75.7]) by ams-core-2.cisco.com (8.14.3/8.14.3) with ESMTP id q2R8bmU8020999; Tue, 27 Mar 2012 08:37:48 GMT
Received: from xmb-ams-110.cisco.com ([144.254.74.85]) by xbh-ams-201.cisco.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 27 Mar 2012 10:37:48 +0200
X-MimeOLE: Produced By Microsoft Exchange V6.5
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Subject: RE: 3484bis and privacy addresses
Date: Tue, 27 Mar 2012 10:37:45 +0200
Message-ID: <317616CE96204D49B5A1811098BA895006F34568@XMB-AMS-110.cisco.com>
In-Reply-To: <4F716D5C.40402@innovationslab.net>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Thread-Topic: 3484bis and privacy addresses
Thread-Index: Ac0L6/6W1tDhCkkBQKmDG+Sxn7XumQACE+Cw
References: <4F716D5C.40402@innovationslab.net>
From: "Eric Vyncke (evyncke)" <evyncke@cisco.com>
To: Brian Haberman <brian@innovationslab.net>, ipv6@ietf.org
X-OriginalArrivalTime: 27 Mar 2012 08:37:48.0698 (UTC) FILETIME=[E3E517A0:01CD0BF4]
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, 27 Mar 2012 08:38:13 -0000

I prefer A. (public address is to be preferred)

Whatever the final choice will be, I would like 3484bis to allow the
policy setting to be reversed.

BTW, my choice is based on:
- privacy is anyway given away with cookies, HTTP headers such as
User-Agent string
- stable address is key for audit-trail (so Fernando's proposal is
useful here)

> -----Original Message-----
> From: ipv6-bounces@ietf.org [mailto:ipv6-bounces@ietf.org] On Behalf
Of
> Brian Haberman
> Sent: mardi 27 mars 2012 09:34
> To: ipv6@ietf.org
> Subject: 3484bis and privacy addresses
> 
> All,
>       The chairs would like to get a sense of the working group on
changing
> the current (defined 3484) model of preferring public addresses over
privacy
> addresses during the address selection process.  RFC 3484 prefers
public
> addresses with the ability (MAY) of an implementation to reverse the
> preference.  The suggestion has been made to reverse that preference
in
> 3484bis (prefer privacy addresses over public ones).
> Regardless, the document will allow implementers/users to reverse the
> default preference.
> 
>       Please state your preference for one of the following default
options
> :
> 
> A. Prefer public addresses over privacy addresses
> 
> B. Prefer privacy addresses over public addresses
> 
> Regards,
> Brian, Bob, & Ole
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------