Wowza Media Server 3 Perpetual Edition 3.6.2.17 build7663
What is the expected behavior of the UDP ports negotiated by RTSP?
We are sending live streams to Wowza from mobile devices via RTSP/UDP and have noticed the server giving out pairs of ports for each SETUP but continuing on to 10000-10001 once it reaches what I thought was the upper limit of 9999.
Should the server cycle back to the beginning of what is in DatagramStartingPort or continue past 9999 as we are observing?
<DatagramStartingPort>6970</DatagramStartingPort>
In our case we changed it to 9992
<DatagramStartingPort>9992</DatagramStartingPort>
Here is the response we got after sending the SETUP:
RTSP/1.0 200 OK
Date: Wed, 23 Oct 2013 12:20:52 PDT
Transport: RTP/AVP/UDP;unicast;client_port=5000-5001;mode=receive;source=0.0.0.0;server_port=10000-10001
Session: 1254165248;timeout=60
Expires: Wed, 23 Oct 2013 12:20:52 PDT
Cseq: 4
Server: Wowza Media Server 3.6.2.17 build7739
Cache-Control: no-cache
We need to understand the behavior in order to open our firewall to the correct range. Currently it’s open from UDP 9992 to 9999 only.
Thanks,
Robert