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If a global IP address is assigned to a printer/multifunction machine, you can create a network environment
to reduce the risk of unauthorized access by installing security software, such as a firewall that prevents
access from the external networks. If you want to assign a global IP address to and use a printer/
multifunction machine, contact your network administrator.
Using Firewall to Restrict Transmission
A firewall is a system that prevents unauthorized access from the external networks and protects against attacks/
intrusions to a local area network. You can use a firewall on your network environment to block access from the
external network that appears to be dangerous, by restricting communication from specified IP address of the
external network. The function installed to a Canon printer/multifunction machine enables you to set up the IP
address filter. For information on how to set up an IP address filter, see
(imageRUNNER 2204F / 2204N / 2004N)(P. 372) .
Specifying the TLS Encrypted Communication
For information on the TLS Encrypted Communication, see
Devices with TLS(P. 276) .
Setting PIN to Manage Information Stored in the Multifunction Machine
If a malicious third party attempts to gain unauthorized access to a printer/multifunction machine, setting PIN to
information stored in the machine will reduce the risk of information leakage. Canon printer/multifunction machine
enables you to protect various type of information by setting PIN.
Setting PIN to Each Function
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Setting PIN for Using Remote UI
For more information, see
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Setting PIN for the System Manager Settings
For more information, see
(P. 359) .
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Address Book PIN
For more information on setting a PIN, see
(P. 385) .
Listed above are some examples of security measures for preventing unauthorized access. For more information on
the other security measures, see
unauthorized access to suit your environment.
Security
Setting a Remote UI PIN (imageRUNNER 2204F / 2204N / 2004N)(P. 369) .
Setting the System Manager ID (imageRUNNER 2204F / 2204N / 2004N)
Setting a PIN for Address Book (imageRUNNER 2204F)
Security(P. 354) and take necessary security measures for preventing
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Specifying IP Addresses for Firewall Rules
Encrypting Communication of Print Data for Mobile
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