From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesper Juhl Subject: Re: igmp problem Date: Mon, 5 Sep 2005 18:22:46 +0200 Message-ID: <9a874849050905092279e8e860@mail.gmail.com> References: <20050905155640.GA18216@codeblau.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: To: "felix-linuxkernel@fefe.de" In-Reply-To: <20050905155640.GA18216@codeblau.de> Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 9/5/05, felix-linuxkernel@fefe.de wrote: > Hi! > > I wrote a few multicast tools, which use these multicast groups: > > 225.109.99.112 > ff02::6d63:7030 > 224.110.99.112 > ff02::6e63:7030 > > I have a Cisco in the middle, and both boxes are in different VLANs. > The Cisco is sending out igmp queries. The kernel never answers, even > after subscribing to these multicast groups. > > The kernel version is 2.4.26. What could be the problem here? > > I found no netfilter rules, and the kernel has multicast support (at > least several igmp related sysctls exist). > I'm unfortunately not able to help you with your specific problem, but a few words of advice: you really ought to start by reproducing the problem with a recent kernel - like 2.4.31 or 2.6.13. 2.4.26 is really ancient and noone really cares about it any more. You should probably also talk to the netdev people (CC'ed). -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html