how do i select/map a specific port from these range 49152-65535 tcp/udp,icmp for SIEM collector on a data source to which it will forward events to McAfee Event Receiver.
Go to Receiver properties > Receiver Configuration > Interface > Connection tab. Here you can defined MEF port used by SIEM Collector. As for the RPC port range you mentioned, its used by WMI. You can restrict it to port 135 by selection RPC check mark on the data source.