STUN server ipaddress and ports

Hi This is Ramesh i have downloaded the STUN server source code.
while running iam getting the following exception.how i can use the stun server for streaming server.
the stun server taking two ips and two ports any one knows which ips and ports i need to use.
iam developing a video conferencing application so that iam trying to use stun as a streaming server bez it will under NAT and Firewall also.
D:\project\jstun\src>java de.javawi.jstun.test.demo.StunServer 42050 192.168.0.11 42052 192.168.0.33
java.net.BindException: Cannot assign requested address: Cannot bind
at java.net.PlainDatagramSocketImpl.bind0(Native Method)
at java.net.PlainDatagramSocketImpl.bind(Unknown Source)
at java.net.DatagramSocket.bind(Unknown Source)
at java.net.DatagramSocket.<init>(Unknown Source)
at java.net.DatagramSocket.<init>(Unknown Source)
at de.javawi.jstun.test.demo.StunServer.<init>(StunServer.java:46)
at de.javawi.jstun.test.demo.StunServer.main(StunServer.java:241)
i have tried with public ip also like 121.246.235.202 with this my server is running.
please give me a valid solution how to use stun server as a streaming server.
or
in order to transmit video over internet what should i do.
if u have any code please send me.

mmm it's a port mistake... try to check if the port number you wanna use is free on your system.
the bind operation is when an application try to put a socket in listening on the port u specified. this means that if the port is busy or dedicated to another process a bind exception is gonna ti be rise.
try to change the port number.
do few tests disabling system firewall or giving enough right to the application.
have fun ^^

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