From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hadmut Danisch Subject: Re: [Bugme-new] [Bug 28282] New: forwarding turns autoconfiguration off Date: Wed, 09 Feb 2011 08:56:58 +0100 Message-ID: <4D5248CA.8090605@danisch.de> References: <20110208133408.7d447e6a.akpm@linux-foundation.org> <20110208.134421.39185637.davem@davemloft.net> <4D51BFCE.2070405@msgid.danisch.de> <20110208.143046.246534138.davem@davemloft.net> <20110208224411.GA9674@electric-eye.fr.zoreil.com> <20110208234753.48abd902.billfink@mindspring.com> <20110209074221.GA9790@electric-eye.fr.zoreil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Bill Fink , David Miller , akpm@linux-foundation.org, netdev@vger.kernel.org, bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org To: Francois Romieu Return-path: Received: from sklave3.rackland.de ([212.86.200.186]:52517 "EHLO sklave3.rackland.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752563Ab1BIH5C (ORCPT ); Wed, 9 Feb 2011 02:57:02 -0500 In-Reply-To: <20110209074221.GA9790@electric-eye.fr.zoreil.com> Sender: netdev-owner@vger.kernel.org List-ID: Am 09.02.2011 08:42, schrieb Francois Romieu: > > Why should we put our brains at pain ? Is there really a problem ? > Yep. It does not work. I have a regular internet connection at home, as usual with dynamically assigned IPv4 addresses. My router automatically creates an IPv6 tunnel, so the IPv6 addresses are dynamic as well. German Internet providers will offer IPv6 soon, and due to the german privacy requirements, they will most probably offer dynamic IPv6 assignments as well. So a Linux machine at home must accept autoconfiguration, if you do not want to change your address manually at least once a day. On the other hand, a regular Linux machine can have routing tasks. E.g. when using a VPN, when dealing with virtual machines, for testing, for TUN/TAP devices, and so on. Although there is no good technical reason for not having both at the same time, Linux does not allow this. The machine's admin should at least have the choice to turn routing and autoconf on and off independently. regards Hadmut