Date: Thu, 14 Feb 2002 15:33:47 -0800 From: Charles Henrich <henrich@sigbus.com> To: freebsd-multimedia@freebsd.org Subject: Re: Setting up mbone network (mini and standalone) troubles with mrouted Message-ID: <20020214153347.G2428@sigbus.com> In-Reply-To: <20020210200423.B24890@sigbus.com>; from henrich@sigbus.com on Sun, Feb 10, 2002 at 08:04:23PM -0800 References: <20020210200423.B24890@sigbus.com>
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> Im trying to setup a small multicast network, crossing four networks. Three
> of the networks are IP connected, the fourth is not. I.e. something like so:
>
> Net1 <-> Private T1 <-> Net 2
> || ||
> || Internet || T1
> \/ \/
> Net 4 Net 3
>
> Network 1 throuth 3 all work as advertised, they all communicate with each
> other just fine, sdr sessions work, etc... The connection between network 1
> and 4 is only via a mrouted tunnel, there is no other IP tunneling going on.
> SDR advertised sessions from net 4 do not propogate to the other networks, and
> neither vice versa. The one weirdness. If network 4 originates materials to
> multicast address 239.1.1.1, then it will make it to the other networks.
> However in this case, upstream pruning does not function, instead the stream
> keeps coming on through.
>
> Anyone have any ideas on why or how this is happening? Thanks for any
> insight! (I dont know of any generic mrouted/mbone mailing list or I'd email
> there as well)
The pruning solution here is to use the noflood keyword in the configuring of
mrouted. It looks to me like a bug with the mrouted code. As for the
non-propogation issue, it was due to using a crap network card (dc0) that was
having multicast issues. Swapping it out with a 3com solved that problem.
-Crh
Charles Henrich Eon Entertainment henrich@msu.edu
http://www.sigbus.com:81/~henrich
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