Problems with Multicast routing on 2811

[janhendrikbriese]

Hello,

i tried to etablish multicast routing using pim and gre between two 2811 (IP-Base) Router.

Routing/forwarding from rtA to rtB works without any problems, but forwarding multicast from rtB to rtA isn't running!

In my opinion the configuration looks good. Pls find attached Files.

Thanks

Jan

[Edison Ortiz · Accepted solution]

Valid UDP ports are up to 65535 so I don't think that's the problem.

Did you verify the TTL value? If TTL = 1, packets won't be forwarded.

As suspected, the issue is application and not the router configuration.

[janhendrikbriese]

Edison you are right!

However the ip multicast ttl-threshold is set to 0. In my understanding the router should ignore the TTL. Or does the router count the TTL anyway?

Does anybody have a solution to ignore or modify the TTL at the router or the System (Windows XP/Jav Application)?

Thanks

Jan