This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
I have some hardware on my internal network which I want to send udp packets to from an external network using port forwarding set up on my Linksys WAG320n router. I can connect using telnet to the hardware proving that TCP and port forward works but when I try to send a UDP packets from an external network it fails.
I can however send the same packet internally and port forwarding works fine.
Am I missing something when programming using the DatagramSocket or is the problem on my router (Linksys WAG320n)