Changing the Maximum Transmission Unit ..........................................................................................................
376
Setting a Wait Time for Connecting to a Network .................................................................................................. 377
Conguring DNS .............................................................................................................................................. 378
Conguring SMB (MF249dw / MF247dw) ............................................................................................................. 383
Conguring SNTP ............................................................................................................................................. 385
Monitoring and Controlling the Machine with SNMP ............................................................................................. 387
Security .............................................................................................................................................................. 393
Protecting the Machine from Unauthorized Access ................................................................................................ 394
Preventing Unauthorized Access ........................................................................................................................ 395
Setting Access Privileges .................................................................................................................................... 397
Setting the System Manager PIN .................................................................................................................. 398
Setting a Remote UI PIN .............................................................................................................................. 400
Restricting Communication by Using Firewalls ...................................................................................................... 402
Specifying IP Addresses for Firewall Rules ...................................................................................................... 403
Specifying MAC Addresses for Firewall Rules .................................................................................................. 407
Changing Port Numbers .................................................................................................................................... 410
Setting a Proxy ................................................................................................................................................. 412
Restricting the Machine's Functions ...................................................................................................................... 414
Restricting Access to Address Book and Sending Functions .................................................................................... 415
Setting a PIN for Address Book ..................................................................................................................... 416
Limiting Available Destinations ..................................................................................................................... 418
Prohibiting PC Faxing .................................................................................................................................. 419
Disabling Use of Previously Used Destinations ............................................................................................... 420
Checking Destinations before Sending Documents ......................................................................................... 421
Prohibiting Sequential Broadcasting ............................................................................................................. 423
Disabling HTTP Communication .......................................................................................................................... 424
Disabling Remote UI ......................................................................................................................................... 425
Implementing Robust Security Features ................................................................................................................ 426
Enabling TLS Encrypted Communication for the Remote UI ................................................................................... 427
Conguring IEEE 802.1X Authentication ............................................................................................................... 430
Conguring Settings for Key Pairs and Digital Certicates ...................................................................................... 435
Generating Key Pairs ................................................................................................................................... 437
Using CA-issued Key Pairs and Digital Certicates ........................................................................................... 444
Verifying Key Pairs and Digital Certicates ..................................................................................................... 447
Using Remote UI ........................................................................................................................................ 450
Starting Remote UI ............................................................................................................................................... 451
Remote UI Screens ................................................................................................................................................ 453
Managing Documents and Checking the Machine Status ........................................................................................ 457
Setting Up Menu Options from Remote UI ............................................................................................................. 462
Saving/Loading Address Book from Remote UI ....................................................................................................... 464
Registering Address Book from Remote UI ............................................................................................................. 468
V
