> char const* inputAddressStr = "172.16.9.161"; This is wrong. "inputAddressStr" must be an IP multicast address, or - if you're receiving via unicast instead - "0.0.0.0".
But anyway, I suspect that the LIVE555 code can't handle what you're trying to do - not because you're trying to send and receive using the same port number, but because you have two different "Groupsock" objects that use the same port number. If you were to restructure the code so that only one "Groupsock" object were used, then it might work. But you're probably better off not trying to do this at all... Ross Finlayson Live Networks, Inc. http://www.live555.com/
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