Spoke-to-spoke multicast problems

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Oct 28th, 2008
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I have am trying to setup a network for a video surveillance system. The network is setup in a hub spoke configuration with multicast sources and receivers at all of the spokes. I am using a DMVPN configuration to encrypt tunnels from the spokes to the hubs and spokes to spokes. I am currently able to to get multicast traffic to the hub from all of the spokes but I can't see to get it from spoke-to-spoke. I don't know that much about configuring multicast so it may be a simple mistake on my part. I have attached configs from two of my spoke routers and my hub router. Thanks in advance for any help or suggestions.

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j.bourque Tue, 10/28/2008 - 13:03
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I don't see the configs attached. What hardware devices are you using for the hub and spoke ends?

kymera-it Tue, 10/28/2008 - 13:21
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I accidentally submitted the post twice the original had the configs. They are attached below. The routers that I am using are 2821's for the spokes and a 7201 for the hub.

kymera-it Tue, 10/28/2008 - 14:06
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Thanks j.bourque for the response but I have DMVPN setup and it works. I can get unicast traffic between the spokes but not multicast. Multicast is not an area I know much about. I have tried several things that I have found online but am not sure how get the multicast from spoke to spoke. I am not even sure if I am setting multicast correctly on the routers. Most of the examples I have found are only for one source and several receivers and I have many of both.


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