[streaming] rtp streaming

[Michele]

Hi there,
I have a strange problem with RTP streaming.
First of all, this configuration works:

on the rtp streamer (server): vlc -vvv video.avi --loop --sout
'#rtp{mux=ts,dst=192.168.1.3,port=31337,sdp=rtsp://0.0.0.0:12345/m.sdp}'
on the rtp listener (client): vlc rtp://@:31337

and I can clearly see the video

However, if I do the following:
on the rtp streamer (server): vlc -vvv video.avi --loop --sout
'#rtp{mux=ts,dst=192.168.1.3,port-video=9450,port-audio=9344,sdp=rtsp://0.0.0.0:12345/m.sdp}'
on the rtp listener (client): vlc rtp://@:9450

I can't see the video
With Wireshark, I detect that vlc is sending RTP packets to
192.168.1.3 not on 9450/udp port, but on 5004/udp.

So, where am I wrong?
Thank you.