RTP plus 1.
User can modify Multicast setting for stream1 and stream2. “Always multicast” Select it to enable multicast always.
“Multicast group address” It is used by sources and the receivers to send and receive content. “Multicast video port” The video channel port for multicast. It must be an even number. “Multicast RTCP video port” The video channel port for multicast RTCP. It must be the port number of multicast video port plus 1.
“Multicast audio port” The audio channel port for multicast. It must be an even number. “Multicast RTCP audio port” The audio channel port for multicast RTCP. It must be the port number of multicast audio port plus 1.
“Multicast TTL” It specifies the number of routers (hops) that multicast traffic is permitted to pass through before expiring on the network.
