I have a problem, and I'm wondering how I'd fix it. My router only allows 10 ports to be forwarded, and I require more than that for the games that I play. How unsafe would it be to open DMZ to my computer, so that I could allow the ports through Windows Firewall, and block everything else? Or is there a more secure, preferably free, firewall I should use to do that? Thank you!
Does your router not support uPnP?