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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
Settings(P. 152) .
Specifying the TLS Encrypted Communication
For information on the TLS Encrypted Communication, see
and on the procedures to specify, see
Setting PIN to Manage Information Stored in the 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 printers/multifunction machines
enable you to protect various type of information by setting PIN.
Setting PIN to Each Function
Setting PIN for Using Remote UI
For more information, see
Setting PIN for the System Manager Settings
For more information, see
Listed above are some examples of security measures for preventing unauthorized access. For more information on
the other security measures, see
preventing unauthorized access to suit your environment.
Setting Up
Configuring the Key and Certificate for TLS(P. 160) .
Setting a Remote UI PIN(P. 147) .
Setting the System Manager PIN(P. 145) .
Managing the Machine(P. 142) and take necessary security measures for
17
Specifying IP Addresses for Firewall
Configuring the Network Security Settings(P. 149) ,

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