How to manually open ports in Internet Connection Firewall in Windows XP

To manually open a port, follow these steps:

  • Click Start, and then click My Network Places.
  • Under Network Tasks, click View Network Connections. (Or, right-click My Network Places on the desktop, and then click Properties.)
  • Right-click the connection that you use for the Internet, and then click Properties.
  • Click the Advanced tab, and then click Settings.
    Note If the Settings button is unavailable, ICF is not enabled on this connection, and you do not have to open any ports (because they are all already open).
  • Click Add to open a new port.
  • In the Description box, type a friendly name. For example, type File Sharing : Port 445.
  • In the Name or IP address of the computer hosting this service on your network box, type
    Note You can specify the IP address of an internal computer. But you typically will use
  • In the External port and Internal port boxes, type the port number. Generally, this number is the same.
  • Click either TCP or UDP, and then click OK.
  • Repeat steps 1 through 9 for each port that you want to open.

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