PeerGuardian is a firewall (IP blocker) for Windows which makes information stored on the computer safe.
PeerGuardian is a tool designed to protect the computer when connected to a peer-to-peer network, acting as a firewall (IP blocker) for Windows. The software is able to block IP address ranges (government, unhealthy websites, hackers ...) to protect users privacy and computer from hacker intrusions. It prevents the banned IP to download the files located into the computer.
The software integrates support for multiple lists, automatic updates, and blocking traffic for IPv4 (TCP, UDP, ICMP, etc.).
User can add listings, edit those that come with the application and the update automatically.