List of Port Numbers (Listening Ports)

This section describes the port numbers used by this software for listening.
NOTE
For details on the port numbers used by the basic functions, see the following.
List of Port Numbers (Basic Functions)
Port Numbers Used for Listening
Port Number
Protocol
Network Service
Source
Destination
Intended Use
80 *1
TCP
HTTP
Client computer/Printer
Manager
Web server
81
TCP
HTTP
Printer/Agent
Manager
Local CDS server
443 *1
TCP
HTTPS
Client computer/Printer/Agent
Manager
Web server (encrypted communication)
444
TCP
HTTPS
Printer/Agent
Manager
Local CDS server (encrypted communication)
8443 *1
TCP
HTTPS
Manager/Printer
Agent
Web server (encrypted communication)
8444
TCP
HTTPS
Printer
Agent
Local CDS reverse proxy (encrypted communication)
10080 *2
TCP
HTTP
Manager/Printer
Agent
Web server
Settings in the Agent configuration file: HttpPort
10081
TCP
HTTP
Printer
Agent
Local CDS reverse proxy
11427
UDP
Canon Original
Printer
Agent
Sending a power state notification
*1 The default value. Can be changed when installing this software.
*2 The default value. Can be changed in the configuration file of the Agent.
NOTE
The Agent waits to receive UDP packets on a free port of the operating system when discovering printers and retrieving the status of printers.
For details on changing a port number in the configuration file, see the following.
When Changing Port Numbers