Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751238AbeAPE0h (ORCPT + 1 other); Mon, 15 Jan 2018 23:26:37 -0500 Received: from smtps.newmedia-net.de ([185.84.6.167]:41791 "EHLO webmail.newmedia-net.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750818AbeAPE0f (ORCPT ); Mon, 15 Jan 2018 23:26:35 -0500 Subject: Re: [PATCH 4.9 27/75] net: igmp: Use correct source address on IGMPv3 reports To: Kevin Cernekee Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable , Andrew Lunn , "David S. Miller" References: <20180101140056.475827799@linuxfoundation.org> <20180101140100.858496151@linuxfoundation.org> From: Sebastian Gottschall Message-ID: <9edf97da-5492-b598-492e-c982591dddff@dd-wrt.com> Date: Tue, 16 Jan 2018 05:26:27 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: Am 16.01.2018 um 04:58 schrieb Kevin Cernekee: > On Mon, Jan 15, 2018 at 7:50 PM, Sebastian Gottschall > wrote: >> please revert that on 4.9 and 4.14 >> it breaks igmp routing. it can be reproduced with any iptv connection using >> igmp-proxy. reverting this patch fixes the issue. > Hi Sebastian, > > Is this the correct igmp-proxy (based on mrouted)? > > https://github.com/mirror/dd-wrt/tree/master/src/router/igmp-proxy > > What is the actual vs. expected source address you are seeing on the > IGMP packets? this github mirror is unmaintained. (svn.dd-wrt.com is the correct repository) but yes, but same applies to upstream https://github.com/pali/igmpproxy havent check the source addresses right now. i basicly discovered that this patch breaks the igmp routing and all traffic stops this here is from a working system with the reverted patch. if you really need that i break it again using the patch you need to wait a little bit 05:14:22.697962 IP 10.88.195.138 > 239.35.100.8: igmp v2 report 239.35.100.8 root@shellfast:/proc/4032/net# /tmp/ip mroute (193.158.35.251, 239.35.20.4)    Iif: ppp0       Oifs: briptv (10.88.193.141, 239.255.255.250) Iif: ppp0       Oifs: briptv (10.88.193.145, 239.255.255.250) Iif: ppp0       Oifs: briptv (10.88.195.138, 239.255.255.250) Iif: ppp0       Oifs: briptv (10.88.195.129, 239.255.255.250) Iif: ppp0       Oifs: briptv (10.88.193.134, 239.255.255.250) Iif: ppp0       Oifs: briptv (10.88.195.1, 239.255.255.250)   Iif: ppp0       Oifs: briptv (10.88.193.109, 239.255.255.250) Iif: ppp0       Oifs: br0 (10.88.193.145, 239.192.152.143) Iif: ppp0       Oifs: br0 (10.88.193.1, 239.255.255.250)   Iif: ppp0       Oifs: br0 > -- Mit freundlichen Grüssen / Regards Sebastian Gottschall / CTO NewMedia-NET GmbH - DD-WRT Firmensitz: Stubenwaldallee 21a, 64625 Bensheim Registergericht: Amtsgericht Darmstadt, HRB 25473 Geschäftsführer: Peter Steinhäuser, Christian Scheele http://www.dd-wrt.com email: s.gottschall@dd-wrt.com Tel.: +496251-582650 / Fax: +496251-5826565