From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Westphal Subject: Re: BUG: ip6tables IPv6-REDIRECT over bridges Date: Thu, 20 Feb 2014 20:32:31 +0100 Message-ID: <20140220193231.GB7119@breakpoint.cc> References: <1392920071.66303.YahooMailNeo@web172306.mail.ir2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Pablo Neira Ayuso , Patrick McHardy , Jozsef Kadlecsik , "\"David S. Miller\"" , Alexey Kuznetsov , James Morris , Hideaki YOSHIFUJI , "netfilter-devel@vger.kernel.org" , "netfilter@vger.kernel.org" , "coreteam@netfilter.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" To: Artie Hamilton Return-path: Received: from Chamillionaire.breakpoint.cc ([80.244.247.6]:37914 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755536AbaBTTct (ORCPT ); Thu, 20 Feb 2014 14:32:49 -0500 Content-Disposition: inline In-Reply-To: <1392920071.66303.YahooMailNeo@web172306.mail.ir2.yahoo.com> Sender: netfilter-devel-owner@vger.kernel.org List-ID: Artie Hamilton wrote: > Now the same thing should be done for IPv6. It should works quite sim= ilar > (I just=A0assume the above mentioned steps are already done): >=20 > $ sysctl -w net.ipv6.conf.br0.accept_ra=3D2 > $ sysctl -w net.bridge.bridge-nf-call-ip6tables=3D1 > $ ip6tables -t nat -A PREROUTING -p tcp -m tcp --dport 8080 -j REDIRE= CT --to-ports 81 >=20 > But here is the problem: Connections will not be started. I see for e= xample > connections getting started to the service like this on the client: Yes, because bridge layer does not detect when addresses have been rewritten. The check is only implemented for ipv4, see dnat_took_place use in br_n= etfilter.c -- To unsubscribe from this list: send the line "unsubscribe netfilter-dev= el" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html