Occasionally testing your firewall to make sure it's functioning as needed is a great idea and one of the most effective ways to do it is by utilizing tools outside your home network.

I use a BEFSR41 Linksys router/hub (don't know what it is called). Whenever i try to make a Warcraft 3 game, no one can join, because of my firewall. How can I configure the "router" to make this ...