When you set up a new network printer, the ZoneAlarm router automatically assigns a port number to the printer. If you want to use a different port number, you can easily change it, as described in Setting Up Network Printers.
However, you may sometimes need to change the port number after completing printer setup. For example, you may want to replace a malfunctioning network printer, with another existing network printer, without reconfiguring the client computers. To do this, you must change the replacement printer's port number to the malfunctioning printer's port number, as described below.
Note: Each printer port number must be different, and must be a high port.
To change a printer's port
The Ports page appears.
The USB Devices page appears, displaying a list of connected printers.
The Printer Setup page appears.