If you have direct access to the firewall, just shut it down. most firewalls are used by companies to prevent the server from being hacked (although some of the sysOPS are dumb as hell, and can't do a damn thing right). But, like I said, if you are using a home computer and using some cheap firewall like zonealarm, just turn it off. It's most likely that you won't be nuked or trojaned, unless you recently ****ed off some hacker community on their message board and didn't hide ur IP.

Anywho, have a good one.