PIM policies on devices are enhanced to remove the special policies configuration that used port number 2/2 to allow PIM protocol messages to pass through on device that was acting as an intermediate router. The benefit of this enhancement is that, if attackers send multicast UDP packets using port pair 2/2, the packets no longer pass through the device. You must now use the real port number in the packets to create a PIM data session and make sure that multicast flow works properly.
Run the following commands to create the PIM data session at real port number along with the normal PIM configuration:
set applications application PIM protocol pim
set applications application MULTICAST_APP protocol udp
set applications application MULTICAST_APP destination-port 5000-8000
