I know it is a pain but it is not to piss off students living on
campus rather than keeping out attempts to invade systems inside the
networks as well as limiting the amount of traffic running on the
network. There are some ways to provide some gaming solutions to
students but they would all require some organisation to take
responsibility for it (i.e. Gaming Societies).
To my knowledge almost every university has roughly the same policies
and only allows traffic for well known programs ( sometimes not event
that, MSN has been known to be blocked on campus for a while ).
But tbh that might just be the german talking (i.e. pessimistic). If
anyone happens to find a working example at another university I would
be happy to support it though.
Cheers,
Tobi