From owner-freebsd-net@FreeBSD.ORG Tue Jun 10 07:45:31 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3B21C106567F; Tue, 10 Jun 2008 07:45:31 +0000 (UTC) (envelope-from randy@psg.com) Received: from rip.psg.com (rip.psg.com [IPv6:2001:418:1::39]) by mx1.freebsd.org (Postfix) with ESMTP id 1C8BC8FC12; Tue, 10 Jun 2008 07:45:31 +0000 (UTC) (envelope-from randy@psg.com) Received: from [202.214.86.146] (helo=rmac.psg.com) by rip.psg.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1K5yXq-000Ei3-Le; Tue, 10 Jun 2008 07:45:30 +0000 Message-ID: <484E3119.4060102@psg.com> Date: Tue, 10 Jun 2008 16:45:29 +0900 From: Randy Bush User-Agent: Thunderbird 2.0.0.14 (Macintosh/20080421) MIME-Version: 1.0 To: Doug Barton References: <484E0C08.1060800@FreeBSD.org> In-Reply-To: <484E0C08.1060800@FreeBSD.org> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org, so@freebsd.org Subject: Re: Proposal: Enable IPv6 Privacy Extensions (RFCs 3041/4941) by default X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jun 2008 07:45:31 -0000 > To address those privacy concerns RFC 3041 was written, and eventually > obsoleted by RFC 4941. ftp://ftp.rfc-editor.org/in-notes/rfc4941.txt > Our IPv6 implementation comes with the code to enable this feature, > but by default it is turned off. My proposal is to enable it by > default, and give the user a knob in rc.conf to turn it off. the only drawback is that forward and reverse dns would not be easily filled. but anyone who relies on a mac address for dns hacking is asking for trouble; use dhcpv6 or hard code the host's ip address in /etc/rc.conf. so i have no problem with the change. thanks for asking. randy