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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

NETGEAR RT311 User Manual

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