Changing Port Numbers - Canon imageCLASS LBP654Cdw User Manual

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
1
Select <Menu> in the Home screen.
2
Select <Preferences>
● If the login screen appears, enter the correct ID and PIN.
3
Select <TCP/IP Settings>
4
Selecting the protocol of which you want to change the port number.
Learning more about the protocols
● <LPD>/<RAW>/<WSD Multicast Discovery>
● <HTTP> Disabling HTTP Communication(P. 272)
● <POP3> Receiving I-Faxes for Printing(P. 194)
● <SNMP> Monitoring and Controlling the Machine with SNMP(P. 73)
● <Multicast Discovery>
5
Enter the port number, and press <Apply> (
6
Restart the machine.
● Turn OFF the machine, wait for at least 10 seconds, and turn it back ON.
LINKS
Configuring Printer Ports(P. 54)
Managing the Machine
Setting a Proxy(P. 244) .
Home Screen(P. 107)
<Network>.
<Port Number Settings>.
Configuring Printing Protocols and WSD Functions(P. 51)
Monitoring the Machine from the Device Management Systems(P. 78)
243
Logging in to the Machine(P. 123)
).
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