Ha, Many universities are locked down pretty tight. I once had a friend almost get kicked out for running wireshark on their laptop. I suspect they had an IDS/IPS that saw all the name resolutions he was sending out (always a good idea to turn off resolution in wireshark or anything else in that manner).
The college I attended had their network pretty wide open. You could easily use cain and abel to do some APR spoofing and record tons of voip calls, fun times.