An IP Address is like a telephone number, or a street address, for your computer - any time you connect to the Internet, your IP address is used to make that connection. If you go to www.google.com, your computer first translates this to an IP address (e.g. 66.102.1.104), then sends a request to that address for a web-page; when the www.google.com computer receives this message, part of it contains your computer's IP address so that it knows how to send the web-page back to you.

PeerBlock is a type of program known as an IP Filter. It lives way down deep inside the networking code on your computer - the stuff in Windows that actually makesreceives network connections for you - and inspects everything that flows past it. It looks at the IP address this network packet is coming from, and compares it against a list of bad ip-addresses; if it finds a match, it doesn't let that network packet make it through to the rest of your computer. It also looks at the IP address your network packets are going to, and does the same thing.

PeerGuardian 2 is Phoenix Labs premier IP blocker for Windows. PeerGuardian 2 integrates support for multiple lists, list editing, automatic updates, and blocking all of IPv4 (TCP, UDP, ICMP, etc), making it the safest and easiest way to protect your privacy on P2P.

Home Page - http://www.peerblock.com/

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