My school have blocked almost all ports to prevent us from using msn messenger, hamachi and stuff while in school. We’ve found a way to work around the msn-block though. We use msn 7.0, and set the connection to be made through a specific port. This doesn’t work in Hamachi though. My question now is: Is there a way to find open UDP ports? I have an open TCP port, at least I think I do, I don’t know any way of testing it.
I googled it and found a port scanning program, but it can’t find any UDP ports… Is it possible that they have all the UDP ports blocked? I wish I remembered anything from my network classes 