M-10146-01
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Contents
Backing Up, Restoring, or Erasing Your Settings
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7-9
How to Back Up the Configuration to a File
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7-9
How to Restore a Configuration from a File
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7-10
How to Erase the Configuration
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7-11
Running Diagnostic Utilities and Rebooting the Router
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7-11
How to Enable Remote Management
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7-12
How to Upgrade the Router’s Firmware
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7-13
Chapter 8
Troubleshooting
Basic Functions
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8-1
Power LED Not On
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8-2
Test LED Never Turns On or Test LED Stays On
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8-2
Local or Internet Port Link LEDs Not On
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8-2
Troubleshooting the Web Configuration Interface
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8-3
Troubleshooting the ISP Connection
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8-4
Troubleshooting a TCP/IP Network Using a Ping Utility
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8-5
Testing the LAN Path to Your Firewall
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8-6
Testing the Path from Your PC to a Remote Device
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8-6
Restoring the Default Configuration and Password
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8-7
Problems with Date and Time
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8-8
Appendix A
Technical Specifications
Technical Specifications
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A-1
Appendix B
Networks, Routing, and Firewall Basics
Related Publications
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B-1
Basic Router Concepts
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B-1
What is a Router?
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B-1
Routing Information Protocol
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B-2
IP Addresses and the Internet
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B-2
Netmask
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B-4
Subnet Addressing
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B-4
Private IP Addresses
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B-7
Single IP Address Operation Using NAT
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B-8
MAC Addresses and Address Resolution Protocol
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B-9