not able to receive packets?? pls help.

[abdullahansari]

I am very to java and networking.
I am trying to receive packets at port 1030 and printing on console.
I am sending the packets from fpga board to pc.
I could see the packets on wire shark but cant see on the console.
The java code that i am using is


import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.util.Date;


public class main {public static void main( String args[] ) throws Exception {
DatagramSocket socket = new DatagramSocket(1030);
DatagramPacket packet = new DatagramPacket(new byte[512],512);
while ( true ) {
socket.receive( packet );
System.out.println( ""+new Date()+" "+packet.getAddress()+":"+packet.getPort()+" "+new String(packet.getData(),0,packet.getLength()) );
// socket.send( packet );
}

Couple of points:
1. when i tried to see the port list using netstat -an command i could see port
1030 but with ip:0.0.0.0. I am sending the packets from fpga to 192.168.0.1.
Is this the reason y i am not receiving at the java end?
2.The port state is neither established or listening? do i need to make the port to listening state before i receive the packet? if so, how do i do that?
3. do i need to mention the ip address in the java code ? ( i mean ip of the pc)? and how do i do this?


I really would appreciate if anyone can help me out.....

[Norm]

sending the packets from fpga board
could see the packets on wire shark

No idea what those are.
Have you tried a ServerSocket to see if it receives anything?