From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 2D1B513877A for ; Mon, 14 Jul 2014 18:51:43 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 620A2E0844; Mon, 14 Jul 2014 18:51:35 +0000 (UTC) Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 6F65DE0825 for ; Mon, 14 Jul 2014 18:51:34 +0000 (UTC) Received: by mail-ob0-f182.google.com with SMTP id wm4so4646753obc.41 for ; Mon, 14 Jul 2014 11:51:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:message-id:mail-followup-to:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; bh=WDsrrVvBM0dhF8kVjGnmHhipVfjd0Sil03kXI4XOvD8=; b=eCg3hczvwDBM6t6qhCpzl57goRZlKpC9aXqlQGL/pLuBqjUDyyjRwkL73eYsKEDxgi NtCV9YGmYtSCRXN0Y0gR0wQbO2cnbL3sEf9OgonY8EycgpIirTSm/3Csdwol08RK4P/M EWytLUgVIwFcuSDMylCpEhUtjRSRiRUlz2qQve6chqPnPf8YoVTx9qVDovz7Ua3Q5Dqu 1KYLpZdulZA7YWP8CseeLDz2kyZEytEbQON8kpGu8Q9e6kXuJGXwR+/tLgRlkT8aLrmy aMVKnO1Xgbr4n1GqSwucx3Dp9uHkiICip9gjh/vUz38JJeUhZCzbkRA1ePz+ZBFAn2B4 ChCA== X-Received: by 10.60.155.231 with SMTP id vz7mr20404299oeb.56.1405363893502; Mon, 14 Jul 2014 11:51:33 -0700 (PDT) Received: from linux1 (cpe-76-187-91-128.tx.res.rr.com. [76.187.91.128]) by mx.google.com with ESMTPSA id m5sm24730418obz.2.2014.07.14.11.51.31 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 14 Jul 2014 11:51:32 -0700 (PDT) Sender: William Hubbs Received: (nullmailer pid 8624 invoked by uid 1000); Mon, 14 Jul 2014 18:51:30 -0000 Date: Mon, 14 Jul 2014 13:51:30 -0500 From: William Hubbs To: gentoo development Subject: Re: [gentoo-dev] news item: dhcpcd-6.4.2 defaults to stable private ipv6 addresses Message-ID: <20140714185130.GA8603@linux1> Mail-Followup-To: gentoo development References: <20140714181413.GA8432@linux1> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="IrhDeMKUP4DT/M7F" Content-Disposition: inline In-Reply-To: <20140714181413.GA8432@linux1> User-Agent: Mutt/1.5.22 (2013-10-16) X-Archives-Salt: 5815987c-d440-4250-a397-c919183ab845 X-Archives-Hash: 7ff371fc8815bbb8cd31c2518af62e9a --IrhDeMKUP4DT/M7F Content-Type: multipart/mixed; boundary="SLDf9lqlvOQaIe6s" Content-Disposition: inline --SLDf9lqlvOQaIe6s Content-Type: text/plain; charset=us-ascii Content-Disposition: inline All, I am reposting this because I got a couple of updates from IRC. Let me know what you think. Thanks, William --SLDf9lqlvOQaIe6s Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="2014-07-17_dhcpcd_stable_private_ipv6_address_support.en.txt" Title: dhcpcd 6.4.2 defaults to stable private IPv6 addresses Author: William Hubbs Content-Type: text/plain Posted: 2014-07-17 Revision: 1 News-Item-Format: 1.0 Display-If-Installed: <=net-misc/dhcpcd-6.4.2 dhcpcd-6.4.2 and newer supports IPv6 stable private addresses when using IPv6 stateless address autoconfiguration (SLAAC) as described in RFC-7217 [1]. The configuration file shipped with dhcpcd activates this feature by default, because it means that a machine cannot be tracked across multiple networks since its address will no longer be based on the hardware address of the interface. We did receive a report in testing that IPv6 connectivity was lost due to this change [2]. If you are concerned about losing IPv6 connectivity, I recommend commenting out the line in dhcpcd.conf that says "slaac private" when you upgrade. See the references below for why the upstream default is to use private addresses. [1] http://tools.ietf.org/html/rfc7217 [2] https://bugs.gentoo.org/show_bug.cgi?id=514198 [3] http://tools.ietf.org/html/draft-ietf-6man-default-iids-00 [4] http://mail-index.netbsd.org/tech-net/2014/06/04/msg004572.html --SLDf9lqlvOQaIe6s-- --IrhDeMKUP4DT/M7F Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlPEJrIACgkQblQW9DDEZTjPEgCgja9kb4XWW4J69QYf/p8x+FrL QEsAnRJ9zp2umPcL402d8A/d4S0lIjt1 =t0Zv -----END PGP SIGNATURE----- --IrhDeMKUP4DT/M7F--