RTP streaming port question

Question

I want to stream captured audio from a Linux box to a PC. It works when I run JMstudio on both machines. I wrote my own Java program for the server side. It captures and can play back locally. I use a datasink to stream the audio and it seems to set up and run, but I don't receive anything at the PC (using JMstudio). Here is where I set up the datasink:
         try
            String url= "rtp://192.168.1.160:22000/audio/1";
            MediaLocator m = new MediaLocator(url);
            DataSink d = Manager.createDataSink(ds, m);
            System.out.println("data sink created");
            d.open();
            System.out.println("data sink opened");
            d.start();
            System.out.println("Streaming...");
         } catch (Exception e) {
            System.out.println("data sink exception: " + e.getMessage() );
            e.printStackTrace();
            System.exit(-1);
    I've captured the LAN packets. With JMstudio I see the udp data packets go from the server from port 22000 to the client port at 22000. I also see occasional udp packets on 22001 which I assume are status and command. With my code, I only see the status packets and no data packets. The odd thing (to me) is that the server port for the command/status is random each time I run it. The client is always 22001.
Do I need to force my server data port to 22000? And if so how? If not, any ideas on what's going on? I'm not sure what would help: code listing, log file, and/or LAN activity lists.
- Steve

Answer 1

(sheepish look) I forgot to start the DataSink and the Processor; the port thing was not the problem.