The Israeli railway company has recently started a project of wireless LAN availability on its lines. Now, it's all in the flakey stages, sometimes things are up and sometimes they aren't; sometimes ports are blocked and sometimes they aren't. And what's more annoying is that I think that they have some sort of application-layer-level traffic analysis preventing HTTP proxying.
I would like to have some sort of a GUI tool which would try to connect to various hosts on various ports (perhaps using various protocols), with and without tunnelling on its own or through existing tunnels, giving me a more-or-less comprehensive picture of what's happening connection-wise.
Note that something like ShieldsUP is not relevant since I'm not interested in whether or not the outside world can connect to me (it can't).