How do I block an IP address in Windows XP?
FirewallThe simplest way to block an IP address in XP is to change the settings in Windows Firewall or a third-party firewall. However, if you share your computer with other users and are concerned about security, it’s just as easy to remove the block.Hosts FileEdit what is called the “Hosts” file to block IP addresses. To access this file, go to “My Computer,” click on the “Windows” folder, then click on “System32,” click on “drivers,” click on “etc,” and inside there you’ll see “hosts.” Open the file with a text editor, such as NotePad. At the bottom of the text summary, you should see this line: “127.0.0.1 localhost.” Below that line, add “127.0.0.1,” followed by a space, then type the IP address you want to block. Make as many entries as you need, but each IP address should be on a separate line. After you’re done, save and exit.PeerBlockPeerBlock is a free, open source program that lets you control what servers communicate with your computer online.
