One firewall in my LAN is configured with PIM dense mode and wish to communicate with another firewall ( same model Fortigate 600D) but configured with multicast forwarding. Can the first node PIM enabled able to transfer and receive multicast traffic with the second one? and how? If I set the first one in PIM dense passive mode can I resolve the problem?
Thank you very much for you reply. I am already using GRE to encapulated and decapsulated multicast packets. what it happens is that from no PIM node (multicast forwarding) the PIM enabled node receive correctly multicast packets, but not viceversa. I guess that the PIM enabled node attend the PIM join and refresh state packets from remote node to deliver to it the multicast packets, this is part of the protocol. I wondered if I can use a shortcut to force PIM enable node to send anyway multicast packet outside independently.