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I'm trying to send and receive UDP packets between my linux machines. Problem is that my receiving end doesn't get anything. I can see with Ethereal that packets are really sent but that's it. So is there something wrong with my code or is the problem in my machines. I've tried to send to both machines and the result is always the same. Are there some port restrictions? I'm using ports 8003, 8004, 9003 and 9004. The 9000 ports are supposed to receive packets.
I'm really stuck with this so any help is greatly appreciated. Here's the critical parts of my code.