"TCP Wrapper and SSH Port Forwarding for 1000 Alex" -RoadClosed

There's your fix...

If it is using some form of filtering higher up in the OSI model, your going to have to "wrap" the SSH negotiations in some form that is permitted thru the router. At this point if your still wanting to continue, you'll go grab the help wanted section of the newspaper, and then probe the border perimeter to determine it's characteristics ( Supported protocols, allowed ports, QOS, ...ect)

It probally would be a better idea to just ask the admin, though....