Hi all. I was hoping to get some help with this. We have Video Conferencing equipment with multicast streaming capability. We want to use it to multicast a company President's speech in a few months.
For our current issue, I'm only going to focus on our basic network routing structure between the source and our test receivers. The first router hop is a 6509 with MSFC for local VLAN routing, then a 7204VXR router for WAN connectivity that connects to a 7204VXR in our DC office, a 3662 in our nearby phone center. We're trying to confirm streaming to the DC and Phone Center locations first.
I start the streaming and have it using group 126.96.36.199. The initial connection is using a URL to http://10.0.31.3/stream.sdp. If I use QuickTime to open this stream, it works. If I do the same on any machine on a 10.x.x.x network VLAN off of the MSFC. The one exception is the VLAN that uses an IP subnet of 38.233.146.x (relic from pre-NAT days). This subnet is also the one that the 7204 WAN router exists on.
So I can multicast stream across any VLAN on the MSFC except this one.
I think If I can fix the stream problem to that VLAN, I can get the multicast across the WAN working.
On the routers we're using the ip multicast and ip pim sparse-mode configuration commands. And that's about it. I read that we don't need an RP in sparse-mode because the routers should figure out which one needs to be an RP.
It seems like the 7204 and the MSFC will peer with each other. Yet it seems like the 7204 never gets the multicast group joined on it, even when a machine across the WAN requests the stream.
I didn't think multicast was this difficult to configure. I had it working easily between most of the local VLANs using the simple ip multicast and ip pim sparse-mode commands, just not sure why that one VLAN and the WAN are being such a problem.
Any help is appreciated.