From: Tarun Pahuja (pahujat@gmail.com)
Date: Wed Nov 14 2007 - 12:07:26 ART
Nicky,
If you are on a router that does not have multicasting enabled,
how do you expect the router to know where the source is? Please enable
multicast routing on the router and enable dense mode(in your case) on the
interfaces connecting to other multicast routers so that your router can be
a part of the source tree and knows where to direct your ping. You should
see a (S,G) entry in your mroute table for the source once you enable dense
mode on the router. You can also emulate a source using the command, "ip
igmp join-group x.x.x.x" command on one of the routers which would then be
considered directly connected to the source.
HTH,
Tarun
On Nov 13, 2007 6:49 AM, nicky noname <cisco2study@gmail.com> wrote:
> Hello,
>
> I am trying to ping a multicast feed over a dense mode network. I am
> on a LAN router that is not enabled for Mcast. There is a multicast
> router on the LAN. I cannot get a response. Is this because I am not
> an IGMP client?
>
>
> I thought that a non Mcast enable router could ping Mcast feeds, if
> they are dirtectly connected to a Mcast router, once you define the
> correct interface and make sure of the RPF check?
>
> Sorry...I have a hole in my thinking here.......any someone help.
>
> thanks
> Nic
>
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