Testprogram for firewalls with UDP. A common problem with udp can be that you are allreadu using the local port you whant to use for the test. This program does not bind locally. You should use tcpdump or sutch listenser to check if message comes thru, The program uses raw socket and has to be run by root. There are some retrictions in the code for not sending from eco port which could be fatal. And please be care full, you can do a lot of damage when spoofing the sender.