Changing Port Numbers

Ports serve as endpoints for communicating with other devices. Typically, conventional port numbers are used for major protocols, but devices that use these port numbers are vulnerable to attacks because these port numbers are well-known. To enhance security, your Network Administrator may change the port numbers. When a port number has been changed, the new number must be shared with the communicating devices, such as computers and servers. Specify the port number settings depending on the network environment.


To change the port number for proxy server, see Setting a Proxy.

Select <Menu> in the Home screen. Home Screen

Select <Network Settings>.

If the screen for entering a PIN appears, enter the correct PIN. Setting the System Manager PIN

Select <TCP/IP Settings>

<Port Number Settings>.

Selecting the protocol of which you want to change the port number.

Learning more about the protocols

<LPD>/<RAW>/<WSD Multicast Discovery> Configuring Printing Protocols and WSD Functions

<HTTP> Disabling HTTP Communication

<SNMP> Monitoring and Controlling the Machine with SNMP

Enter the port number, and select <Apply>.

On how to enter text, see Entering Text.

Configuring Printer Ports