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Date:      Sun, 05 Apr 2009 18:27:20 +0100
From:      Bruce Simpson <bms@incunabulum.net>
To:        Upakul Barkakaty <upakul@gmail.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: Multicast routing
Message-ID:  <49D8E9F8.7090800@incunabulum.net>
In-Reply-To: <bb58ac4d0904020043m63a10be8kcbed87f8073471b4@mail.gmail.com>
References:  <bb58ac4d0904020043m63a10be8kcbed87f8073471b4@mail.gmail.com>

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Upakul Barkakaty wrote:
> Hi all,
>
> I was trying to setup a multicast tunneling setup with freebsd, with the
> mrouted utility. However, my multicast router doesnt seem to be forwarding
> those multicast packets.
>
> It would really be helpful if someone could help me with the setup or the
> mrouted.conf file contents.
>
> Thanks in anticipation.
>
>   

Please try the mcast-tools port to confirm that multicast forwarding works.
There are tools in that port which will allow you to run basic UDP 
stream tests
as well as installing static entries in the forwarding cache.

The most likely culprit is a network interface which does not support 
ALLMULTI.

Also, DVMRP has been dead for years, avoid mrouted -- try a PIM 
implementation e.g. XORP or pimsd.

thanks
BMS



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