From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from plane.gmane.org ([80.91.229.3]:57735 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757050Ab3LBUKG (ORCPT ); Mon, 2 Dec 2013 15:10:06 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1VnZoi-0002rf-06 for linux-media@vger.kernel.org; Mon, 02 Dec 2013 21:10:04 +0100 Received: from wsip-70-164-106-210.sd.sd.cox.net ([70.164.106.210]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 02 Dec 2013 21:10:03 +0100 Received: from abishop by wsip-70-164-106-210.sd.sd.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 02 Dec 2013 21:10:03 +0100 To: linux-media@vger.kernel.org From: Alex Bishop Subject: dvbnet - Multiple PIDs on Single Network Interface Attempt Date: Mon, 2 Dec 2013 20:03:12 +0000 (UTC) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Greetings, I'm quite stuck and am hoping I can find some guidance. I have N PIDs carrying MPE multicast packets that have been exposed via dvb0_N interfaces. It does not appear that multiple PIDs can be assigned to a single DVB network interface via V4L/DVB API. My goal is to have all packets (in general, multicast or not) arrive on a single interface (i.e. sat0). That is, a tcpdump -i sat0 will show dvb0_1, dvb0_2, ... , dvb0_N packets. Statically routing (smcroute) does work but, the multicast group address isn't generally known or joined via this process. The other process is pre-existing software that knowns nothing of dvb0_N interfaces too. Bridging the dvb0_N interfaces doesn't show the multicast packets on the bridge interface (i.e. br0 via bridge-utils). I had thought this would be the solution. Routing all multicast packets via route/iptables didn't seem to work either. From what what I gather multicast packets can't be routed 'normally'. I have attempted some with a dynamic multicast router such as mrouted without success. Chance this is my limited experience in this domain, I don't fully grasp the necessities with IGMP and such. So, I think the question is, what would be the method you'd choose to combine packets received from dvb0_N interfaces into a single interface? Can this be done multicast agnostic? Without static routing? Cheers, Alex