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Firewall

A firewall is a system that is designed to prevent unauthorized access to a network.

Precautions: When a Firewall is Enabled

  • A firewall software may limit communications between a printer and a computer. This may disable printer setup and communications.
  • During the printer setup (SETUP.EXE or SETUP64.EXE), you may be prompted to enable or disable communications, depending on the firewall you use. If so, choose to enable communications.
  • When using Canon IJ Network Tool (CNMNPUT.EXE), you may be prompted to enable or disable communications, depending on the firewall you use. If so, choose to enable communications.
  • If you are running Windows XP Service Pack 1 or earlier and using the Internet Connection Firewall (ICF), which is a firewall program included with the Operating System, you will be prompted to disable the program during the printer setup. Choose [Yes] to disable the firewall. The program will be re-enabled automatically after setup.
  • Some applications (like the network configuration software) override firewall settings. Check the application's settings beforehand.
  • If the printer you use is set to "Get IP address automatically", the IP address changes every time the printer connects to the network. This may disable printer setup and communications, depending on the firewall settings. In this case, either change the firewall settings or assign a fixed IP address to the printer. IP address can be set using Canon IJ Network Tool.
    When assigning a fixed IP address to the printer, you will need to specify an IP address with which the computer can communicate.

Note

  • For the security software firewall settings, refer to the user's guide of the software or contact its manufacturer.
  • In an office network environment, contact the network administrator.