Block a Port

You can use Fireware XTM Web UI to add a port number to the Blocked Ports list.

Be very careful if you block port numbers higher than 1023. Clients frequently use these source port numbers.

To add a port number to the Blocked Ports list:

  1. Select Firewall > Blocked Ports.
  2. In the text box below the Blocked Ports list, type the port number to block.
  3. Click Add.
    The new port number appears in the Blocked Ports list.

Screen shot of the Blocked Ports dialog box

Block IP Addresses That Try to Use Blocked Ports 

You can configure the XTM device to automatically block an external computer that tries to use a blocked port. In the Blocked Ports page, select the Automatically block sites that try to use blocked ports check box.

See Also

About Blocked Ports

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