From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1Dx6dV-0007mD-NH for user-mode-linux-devel@lists.sourceforge.net; Mon, 25 Jul 2005 10:21:05 -0700 Received: from nepa.nlc.no ([195.159.31.6] ident=qmailr) by mail.sourceforge.net with smtp (Exim 4.44) id 1Dx6dU-00055I-4B for user-mode-linux-devel@lists.sourceforge.net; Mon, 25 Jul 2005 10:21:05 -0700 Message-ID: <42036.85.166.82.153.1122312057.squirrel@85.166.82.153> In-Reply-To: <6048.1122248129@marajade.sandelman.ottawa.on.ca> References: <6048.1122248129@marajade.sandelman.ottawa.on.ca> Subject: Re: [uml-devel] multicast on loopback: mcast networking at the cottage From: stian@nixia.no MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Mon, 25 Jul 2005 19:20:57 +0200 (CEST) To: Michael Richardson Cc: user-mode-linux-devel , netdev@oss.sgi.com > I suspect that for people who want to do multicast between hosts on an > actual wire won't want to have just a route to lo, they may want a route > for 224.0.0.0/4 on all of their interfaces. Maybe that should be > automatic? > > I think that applications that are multicast aware are supposed to > figure out which interfaces that they want to bind to anyway, so they > should not be confused by the multiple routes. If I remember things right (I might be wrong here): ipv6 does this automatically, so should ipv4 have done too if multicast is supported on a device. Multicast aware programs should always bind to a device, or broadcast on all devices for discovery. This is not uml-specific, but vanilla kernel. Some distroes add multicast-routing for ipv4 during init scripts. Stian ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel