Easily disallow ICMP requests with Windows XP

  1. Open the XP Control Panel.
  2. Open Network and Internet Connections.
  3. Launch Network Connections.
  4. Right-click the device you're using to connect to the Internet. Select Properties.
  5. Select the Advanced Tab.
  6. Turn on the Internet Connection Firewall. You'll see a Settings button in the lower right corner. Click it.
  7. Choose the ICMP tab and uncheck all the marked boxes (if any are checked). Choose OK.
  8. Select OK and exit out.