2ip Firewall Tester is a small program that allows you to test how well your firewall protects your computer from network attacks. When you start 2ip Firewall Tester tries to connect via the Internet to the developer's server. If he succeeds, then your firewall's no good.
The main benefit of the 2ip Firewall Tester is that it enables you to evaluate the effectiveness of your firewall against network attacks.