I'll bite.


Here is my analysis on the situation:

Teacher sets up laptop, firewall -> Block all incomming requests.
You attack - everything fails due to firewall dropping it.

Basically, the firewall setting has you screwed over; he expects to win. In this game with your teacher, he lulled you into a trap that you can't break. Why? His computer is probably set to ignore yours, and everyone else's. IPC (Windows/Network) shares will not work if that is true, nothing will since you are ignored and nothing can connect to him. It is almost like unplugging the computer you are attacking...and he has no services to attack. (at least on webservers, there is a web server service or server side programs you can try to attack) So, simply put, you will probably lose unless you bend the rules a lot, which will probably get you into trouble, so don't waste your time on it.


BTW, I think he is trying to show off... I haven't taken any Cisco courses (I think they want to train me to sell stuff for them) so I don't know what the circulum covers, so it may also be remotely possible he might share some insight into computer security from his own expirence?