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Preventing Unauthorized Access
2KUS-003
This section describes the security measures on how to prevent unauthorized access from the external network. This is
a must-read for all users and administrators before using this machine, other printers, and multifunction machines
connected to the network. In recent years, a printer/multifunction machine connected to the network can offer you a
variety of useful functions, such as printing from a computer, operating from a computer using the remote function,
and sending scanned documents via the Internet. On the other hand, it is essential to take security measures to
reduce the security risk for information leakage, as a printer/multifunction machine has become more exposed to
threats, such as unauthorized access and theft, when it is connected to the network. This section explains necessary
settings you need to specify to prevent unauthorized access before using a printer/multifunction machine connected
to the network.
Security Measures to Prevent Unauthorized Access from the External Network
Assigning a Private IP Address(P. 7)
Using Firewall to Restrict Transmission(P. 8)
Specifying the TLS Encrypted Communication (P. 8)
Setting PIN to Manage Information Stored in the Machine(P. 8)
Assigning a Private IP Address
An IP address is a numerical label assigned to each device participating in a computer network. A "global IP address" is
used for the communication connecting to the Internet, and a "private IP address" is used for the communication
within a local area network, such as a LAN in the company. If a global IP address is assigned, your printer/
multifunction machine is open to the public and can be accessed via the Internet. Thus, the risk of information leakage
due to unauthorized access from external network increases. On the other hand, if a private IP address is assigned,
your printer/multifunction machine is closed to a local area network and can be accessed by only users on your local
area network, such as a LAN in the company.
Global IP Address
Can be accessed from the external network
Private IP Address
Can be accessed from the users within a local area network
Basically, assign a private IP address to your printer/multifunction machine. Make sure to confirm the IP address,
assigned to the printer/multifunction machine you are using, is a private IP address or not. A private IP address is
found in one of the following ranges.
Ranges for Private IP addresses
●
From 10.0.0.0 to 10.255.255.255
●
From 172.16.0.0 to 172.31.255.255
●
From 192.168.0.0 to 192.168.255.255
For information on how to confirm the IP address, see Setting IPv4 Address(P. 32) .
●
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
Setting Up
7
Summary of Contents for imageCLASS MF269dw
Page 1: ...MF269dw MF267dw MF264dw User s Guide USRMA 3285 00 2018 07 en Copyright CANON INC 2018 ...
Page 51: ...LINKS Configuring Printer Ports P 45 Setting Up 44 ...
Page 58: ...Printing from a Computer P 223 Setting Up 51 ...
Page 121: ...Setting Menu List P 360 LINKS Customizing the Home Screen P 152 Basic Operations 114 ...
Page 179: ...Making ID Card Copies P 189 Making Passport Copy P 190 Copying 172 ...
Page 185: ...LINKS Basic Copy Operations P 173 Copying 178 ...
Page 190: ...LINKS Basic Copy Operations P 173 Copying 183 ...
Page 198: ...LINKS Basic Copy Operations P 173 Copying 191 ...
Page 269: ...LINKS Using ScanGear MF P 263 Scanning 262 ...
Page 290: ...6 Click Fax Fax sending starts Linking with Mobile Devices 283 ...
Page 329: ...Managing the Machine 322 ...
Page 349: ...LINKS Remote UI Screen P 335 Managing the Machine 342 ...
Page 351: ...5 Click Edit 6 Specify the required settings 7 Click OK Managing the Machine 344 ...
Page 360: ...Managing the Machine 353 ...
Page 470: ... When replacing drum cartridge see Replacing the Drum Cartridge P 448 Maintenance 463 ...
Page 473: ...Troubleshooting 466 ...
Page 591: ... 16 JPEG this software is based in part on the work of the Independent JPEG Group ...