I meet a traffic multicast problem with 2 firewall ASA and a catalyst 3750. The schema which I reached with the message, is clear to understand met problem. Traffic multicast does not work between local posts IP and distant posts IP.Of course traffic does not pass across the tunnel IPSec. I performed many tests, addition of mroute, displacement of the rdv point, activation of function to bidir, etc..
Thanks a lot for your help,