To allow incoming rtsp streams, I must open incoming TCP port 554. I must also open a range of UDP ports.
At least 8466 through 8469, says my own lsof output, when streaming from youtube (
ffplay rtsp:// , if that stays intact for a day or two).
Is there any constraint on which UDP ports an rtsp server might request in the client_port and server_port fields of a SETUP request ( )?
In other words, must I open all UDP ports in my firewall? (I'm using shorewall on Ubuntu, if that makes a difference.)
1 Answer
As an example, the client RealPlayer uses UDP ports 6970-7170 by default, but that range may be changed, says .
The client VLC needs UDP port 15947, says .
Other clients and servers might have other values.
So if you can't assume a particular client or server, then to guarantee incoming rtsp you must indeed open all UDP ports. Sigh.
0
