viii Contents
Backing Up and Restoring the Configuration with a Serial Connection ...................9-8
Backing Up and Restoring the Configuration Using FTP .........................................9-9
Software Update ....................................................................................... ...... ................9-9
Updating Router Software Using a Serial Connection .............................................9-9
Updating Router Software Using FTP ...................................................... ..............9-10
Command Interpreter Mode .........................................................................................9-11
Chapter 10
Configuring Filters
Router Filter Structure ....... ...........................................................................................10-1
Configuring a Filter Set .......................................................... .......................................10-2
Configuring a Filter Rule ................................................. ..............................................10-6
TCP/IP Filter Rule .................... ..............................................................................10-6
Generic Filter Rule ................................ ...... ....... ...... ....... ...... ...... ....... ...... ....... .......10-9
Applying a Filter Set ...................................................................................................10-10
Default Filters .............................................................................................................10 -11
Filter 1: NetBIOS_WAN ........................................................................................ 10-11
Filter 2: NetBIOS_LAN ....................................... ..................................................10-11
Filter 3: TEL_FTP_WEB_WAN .............................................................................10 -11
Chapter 11
Troubleshooting
Basic Functioning . ...... ....... ...... ....... ...... ....... ...... ....... ....................................................11-1
PWR LED Not On ..................................................................................................11-1
Test LED Never Blinks or LED Stays On ................. ..............................................11-2
LNK/ACT LEDs Not On ...................................................................... ....................11-2
Troubleshooting the Web Configuration Interface ........................................................11-2
Troubleshooting the ISP Connection .............................. ..............................................11-3
Troubleshooting a TCP/IP Network Using a Ping Utility ........ .......................................11-5
Testing the LAN Path to Your Router ..................................................................... 11-5
Testing the Path from Your PC to a Remote Device .............................................. 11-7
Troubleshooting the Manager Interface ................................................................. .......11-7
Restoring the Default Configuration and Password ..................................................... .11-8
Using a Serial Connection ..................................................................................... .11-8
Using FTP ......................... .....................................................................................11-9