does someone know a solution, how to handle the problem, when the routing table next hop via an PIM upstream Router is different from the PIM neighbor IP adressess?
This problem occurs, when the routing table next hop on the FortiGate is a virtual HSRP address, but the PIM neighbor adresses are the real IP adresses. The Reverse Path Forwarding Check will fail in this case and no multicast path will be built up.
Cisco "HSRP aware PIM" is not an option, because it is not available on our Nexus Routers. Another options would be dynamic routing between FG and Routers or clustering the routers via vPC. But I am looking for other solutions on the FG.
Is it possible, to disable the RPF for multicast on the FG?
Many thanks in advance!