
Preventing Unauthorized Access
1647-008
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 Multifunction 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. 31) .
●
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
Содержание imageCLASS MF632Cdw
Страница 57: ...3 Follow the on screen instructions to install the drivers LINKS Printing from a Computer P 258 Setting Up 49 ...
Страница 84: ... Menu Preferences Network Device Settings Management On Setting Up 76 ...
Страница 121: ...MF735Cdw MF733Cdw MF731Cdw MF634Cdw MF632Cdw LINKS Loading Paper in the Paper Drawer P 141 Basic Operations 113 ...
Страница 164: ...Basic Operations 156 ...
Страница 175: ...LINKS Loading Paper in the Paper Drawer P 141 Loading Paper in the Multi Purpose Tray P 149 Basic Operations 167 ...
Страница 181: ...5 Select Apply LINKS Basic Operation P 128 Basic Operations 173 ...
Страница 223: ... Sending and Receiving Faxes via the Internet Using Internet Fax I Fax P 247 Faxing 215 ...
Страница 232: ...Useful Functions When Sending P 230 Checking Status and Log for Sent and Received Documents P 242 Faxing 224 ...
Страница 241: ...3 Select Start Sending The faxes are sent LINKS Basic Operations for Sending Faxes P 217 Faxing 233 ...
Страница 315: ...LINKS Basic Operations for Scanning Originals P 284 Sending I Faxes P 248 Adjusting Density P 305 Scanning 307 ...
Страница 323: ...Sending I Faxes P 248 Scanning 315 ...
Страница 326: ...LINKS Checking Status and Log for Scanned Originals P 301 Scanning 318 ...
Страница 329: ...LINKS Using ScanGear MF P 322 Scanning 321 ...
Страница 352: ...6 Click Fax Fax sending starts Linking with Mobile Devices 344 ...
Страница 358: ...Updating the Firmware 437 Initializing Settings 439 Managing the Machine 350 ...
Страница 414: ...Configuring Basic E Mail Settings P 86 Setting a Shared Folder as a Save Location P 94 Managing the Machine 406 ...
Страница 434: ...LINKS Remote UI Screen P 420 Managing the Machine 426 ...
Страница 436: ...5 Click Edit 6 Specify the required settings 7 Click OK Managing the Machine 428 ...
Страница 606: ... Is the transfer belt inside the machine dirty Cleaning the Transfer Belt ITB P 584 Maintenance 598 ...
Страница 609: ...5 Select Apply Maintenance 601 ...
Страница 623: ...Troubleshooting 615 ...
Страница 679: ...2 Gently pull out the original 3 Gently close the feeder 3 Place the original again Troubleshooting 671 ...
Страница 693: ...Third Party Software 1647 0ER For information related to third party software click the following icon s Appendix 685 ...
Страница 721: ... Import Export of the Setting Data See Setting Menu List P 442 Appendix 713 ...
Страница 727: ...Appendix 719 ...
Страница 767: ... 18 MD4 RSA Data Security Inc MD4 Message Digest Algorithm ...