From owner-freebsd-net@FreeBSD.ORG Tue Aug 22 20:21:07 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 73DA716A4DA for ; Tue, 22 Aug 2006 20:21:07 +0000 (UTC) (envelope-from baldur@foo.is) Received: from gremlin.foo.is (gremlin.foo.is [194.105.250.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id E6C2B43D4C for ; Tue, 22 Aug 2006 20:21:02 +0000 (GMT) (envelope-from baldur@foo.is) Received: from 127.0.0.1 (localhost.foo.is [127.0.0.1]) by injector.foo.is (Postfix) with SMTP id 85E0EDA86B; Tue, 22 Aug 2006 20:21:01 +0000 (GMT) Received: by gremlin.foo.is (Postfix, from userid 1000) id F3109DA847; Tue, 22 Aug 2006 20:20:58 +0000 (GMT) Date: Tue, 22 Aug 2006 20:20:58 +0000 From: Baldur Gislason To: Xander Message-ID: <20060822202058.GC804@gremlin.foo.is> References: <20060821165401.GB804@gremlin.foo.is> <20060822191607.GA27130@gort.synoptic.org> In-Reply-To: <20060822191607.GA27130@gort.synoptic.org> User-Agent: Mutt/1.4.2.1i X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on gremlin.foo.is X-Spam-Level: X-Spam-Status: No, score=-5.9 required=6.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.0.4 X-Sanitizer: Foo MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Cc: freebsd-net@freebsd.org Subject: Re: Multicast X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Aug 2006 20:21:07 -0000 No, and I tried booting a GENERIC kernel also to rule out ipfw. Baldur On Tue, Aug 22, 2006 at 12:16:07PM -0700, Xander wrote: > On Mon, Aug 21, 2006 at 04:54:01PM +0000, Baldur Gislason wrote: > > > I'm having some problems receiving multicast traffic on my FreeBSD > > 6.1-STABLE workstation with VLC. I get the streams but I seem to get > > plenty of packetloss on the freebsd box but on other boxes on the same > > network I don't see such problems. I haven't noticed any packetloss > > with unicast. Any thoughts? I've tried running a GENERIC kernel and > > that makes no difference, I've also tried two different network cards. > > (em and fxp) > > I'm afraid that I only have time for a short reply at the moment, > but are you using pf? I believe I may have run into an issue where > pf doesn't handle tunneled multicast routing (mrouted tunnel) very > well. The issue appears to have something to do with pf not > understanding on what interface the unencapsulated multicast packet > arrived on (since it's re-injected into the stack by mrouted). > (This was seen on 6.1-RELEASE-p3 and 6.1-STABLE as of a week ago) > > At any rate, if you are using pf you might try disabling it and seeing > if that helps your problem. > > cheers > -x > >