Wireshark shows that an RTP package is received on a PC.

Is it possible that despite detection by Wireshark, something (firewall?) is still prevent the application listening to the required port on that PC to receive the package?

Example. Wireshark trace shows a recieved RTP(h264) packet, but there is no video on the softphone because firewall is blocking the port.


Yes. Wireshark operates "before" firewall and sees all the packets that the network card receives. Then the packets get filtered by the firewall running on the PC.

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