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Linksys WRT120N User Manual

Linksys WRT120N
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USER GUIDE
Wireless-N Home Router
Model: WRT120N

Table of Contents

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Linksys WRT120N Specifications

General IconGeneral
xDSL connectionNo
Dimensions (WxDxH)203 x 160 x 35 mm
Power requirements12 V, 1.0 A
Maximum data transfer rate0.3 Gbit/s
Compatible operating systemsWindows XP, Vista Mac OS X 10.4 +
Receiver sensitivity-94dBm @ 1Mbps -90dBm @ 11Mbps -75dBm @ 54Mbps -66dBm @ 270Mbps
Antenna gain level (max)2 dBi
Reset buttonYes
Ethernet LAN (RJ-45) ports4
Security algorithmsWEP, WPA2
CertificationFCC, UL/cUL, ICES-003, RSS210, CE, Wi-Fi (IEEE 802.11b/g), WPA, WMM
Product colorBlack
Modulation16-QAM, 64-QAM, BPSK, OFDM
Storage temperature (T-T)-20 - 60 °C
Operating temperature (T-T)0 - 40 °C
Storage relative humidity (H-H)5 - 90 %
Operating relative humidity (H-H)10 - 80 %
Weight and Dimensions IconWeight and Dimensions
Weight238 g

Summary

About This Guide

Icon Descriptions

Explains icons used in the guide for notes, warnings, and web links.

Online Resources

Lists website addresses for Linksys resources like support and glossary.

Copyright and Trademarks

Details trademarks and copyright information for Linksys and Cisco.

Chapter 1: Product Overview

Front Panel

Details the LEDs and buttons on the front of the router.

Back Panel

Describes the ports and buttons on the back of the router.

Horizontal Placement

Instructions on how to place the router horizontally.

Chapter 1: Product Overview (continued)

Wall-Mounting Placement

Instructions and hardware suggestions for mounting the router on a wall.

Chapter 2: Wireless Security Checklist

Change Default Network Name and SSID

Guide to changing the default SSID for better security.

Change Default Password

Instructions to change the default admin password for security.

Enable MAC Address Filtering

Explains how to enable MAC address filtering for network access control.

Enable Encryption

Discusses enabling encryption (WPA/WPA2/WEP) for wireless security.

Network Security Guidelines

Provides general advice for securing the wireless network.

Additional Security Tips

Offers extra tips for improving wireless network security.

Chapter 3: Advanced Configuration

Access the Browser-Based Utility

How to access and log into the router's configuration interface.

Setup > Basic Setup

Configuration of basic router settings like language and internet connection.

Chapter 3: Advanced Configuration (continued)

Automatic Configuration - DHCP

Explanation of DHCP for automatic IP address assignment.

Static IP Configuration

How to configure a static IP address for internet connection.

PPPoE Connection Setup

Steps for configuring PPPoE connection for DSL internet.

Chapter 3: Advanced Configuration (continued)

PPTP Connection Setup

Configuration for PPTP connections, typically used in Europe.

L2TP Connection Setup

Configuration for L2TP connections, typically used in Israel.

Telstra Cable Connection Setup

Configuration for Telstra Cable internet connections in Australia.

Optional Network Settings

Explains optional settings like Host Name and Domain Name.

Chapter 3: Advanced Configuration (continued)

Host Name and Domain Name Configuration

How to set Host Name and Domain Name for the router.

MTU Settings

Configuration of Maximum Transmission Unit for network packets.

DHCP Server Configuration

Configuration of the router's built-in DHCP server.

DHCP Reservation

How to assign static IP addresses to specific devices using MAC addresses.

Chapter 3: Advanced Configuration (continued)

DDNS Service Setup

Configuration of Dynamic DNS service for remote access.

Chapter 3: Advanced Configuration (continued)

MAC Address Cloning

How to clone a MAC address to avoid ISP registration issues.

Advanced Routing Configuration

Configuration of advanced routing options like NAT and Dynamic Routing.

Chapter 3: Advanced Configuration (continued)

Advanced Routing Options

Explains NAT, Dynamic Routing (RIP), and Static Routing.

Basic Wireless Settings

Configuration of basic wireless network settings like mode and SSID.

Chapter 3: Advanced Configuration (continued)

Wireless Network Mode and SSID

Details Network Mode, Network Name (SSID), and Channel Width.

Wi-Fi Protected Setup (WPS)

Explains methods for configuring wireless security using WPS.

Chapter 3: Advanced Configuration (continued)

Wi-Fi Protected Setup Methods

Describes three methods for setting up Wi-Fi Protected Setup.

Wireless Security Modes

Configuration of wireless security modes like WPA, WPA2, and WEP.

WPA Personal Security

Configuration details for WPA Personal security mode.

WPA2 Personal Security

Configuration details for WPA2 Personal security mode.

Chapter 3: Advanced Configuration (continued)

WPA Enterprise Security

Configuration for WPA Enterprise security with RADIUS server.

RADIUS Server Security

Configuration for WEP security with a RADIUS server.

WPA2 Enterprise Security

Configuration for WPA2 Enterprise security with RADIUS server.

Chapter 3: Advanced Configuration (continued)

WEP Security Configuration

Configuration details for WEP security mode.

Wireless MAC Address Filtering

Setting up MAC address filtering for wireless access control.

Chapter 3: Advanced Configuration (continued)

Wireless Client List

Displays a list of connected wireless clients.

Advanced Wireless Settings

Advanced tuning options for wireless performance.

Chapter 3: Advanced Configuration (continued)

Advanced Wireless Features

Configuration for AP Isolation, Frame Burst, and Authentication Type.

Firewall Configuration

Configuration of SPI Firewall and Internet Filter settings.

Chapter 3: Advanced Configuration (continued)

Internet Filter and Web Filter

Details on Internet Filter and Web Filter options.

VPN Passthrough Settings

Enabling VPN tunnels (IPSec, PPTP, L2TP) through the firewall.

Internet Access Restrictions

Setting up policies to block or allow internet access by time and type.

Chapter 3: Advanced Configuration (continued)

Internet Access Policy Management

How to manage access policies for internet usage.

Policy Summary

Overview of created internet access policies.

Chapter 3: Advanced Configuration (continued)

Single Port Forwarding

Configuring port forwarding for specific applications.

Port Range Forwarding

Setting up port forwarding for a range of ports.

Chapter 3: Advanced Configuration (continued)

Port Range Forwarding Details

Details on configuring port forwarding for applications.

Port Range Triggering

Configuring port triggering for specific applications.

DMZ Hosting Setup

Configuring DMZ hosting for exposing a computer to the internet.

Chapter 3: Advanced Configuration (continued)

DMZ Configuration

Explanation and configuration of DMZ hosting.

Quality of Service (QoS) Setup

Configuring Quality of Service for network traffic prioritization.

Chapter 3: Advanced Configuration (continued)

QoS Settings Overview

Settings for QoS support and No Acknowledgement.

QoS by MAC Address

Setting bandwidth priority for devices based on MAC address.

QoS for Online Games

Setting bandwidth priority for online games.

QoS for Ethernet Port

Setting bandwidth priority for specific Ethernet ports.

QoS for Voice Device

Setting bandwidth priority for voice devices.

Chapter 3: Advanced Configuration (continued)

Administration > Management

Managing router access and security settings.

Router Access Control

Settings for local and remote management access.

Chapter 3: Advanced Configuration (continued)

Log Management

Configuring and viewing router logs for traffic monitoring.

Diagnostic Tests

Running diagnostic tests like Ping and Traceroute.

Chapter 3: Advanced Configuration (continued)

Performing Diagnostic Tests

Details on performing Ping and Traceroute tests.

Factory Default Reset

Restoring the router to its original factory default settings.

Firmware Upgrade Process

Instructions for upgrading the router's firmware.

Chapter 3: Advanced Configuration (continued)

Firmware Upgrade Instructions

Steps to download and install new firmware for the router.

Router Status Information

Displays information about the router's current status and settings.

Local Network Status

Displays information about the local wired network.

Chapter 3: Advanced Configuration (continued)

Local Network Details

Details on MAC Address, Router IP, and Subnet Mask.

DHCP Server Status

Shows the status of the router's DHCP server function.

Wireless Network Status

Displays information about the wireless network status.

Appendix A: Troubleshooting

Computer Cannot Connect to Internet

Steps to troubleshoot internet connectivity issues.

Modem Requirements

Explains requirement for cable/DSL modem, not dial-up.

DSL Manual Connection

Router auto-connects to ISP, manual connection not needed.

DSL Telephone Line Connection

Router requires a separate DSL modem; telephone line connects to modem.

Browser Login Prompt

How to prevent automatic dial-up prompts from the browser.

Coaxial Port Absence

Router requires a separate cable modem.

Wireless Connection Issues

Troubleshooting wireless connection issues.

Appendix D: Regulatory Information

Safety Notices

Warnings regarding water and electrical storms.

Appendix D: Regulatory Information (continued)

FCC Compliance Statement

Compliance information with FCC Part 15 rules.

FCC Radiation Exposure Statement

Compliance with FCC limits for radiation exposure.

Industry Canada Compliance

Compliance with Canadian ICES-003 and RSS210 standards.

Industry Canada Radiation Exposure

Compliance with IC radiation exposure limits.

Wireless Performance Disclaimer

Information on actual wireless performance vs. specifications.

Appendix D: Regulatory Information (continued)

EU Directive 1999/5/EC Declaration

EU compliance information for wireless products.

Product Usage Restrictions

Notes on product usage restrictions, e.g., indoor only.

Appendix D: Regulatory Information (continued)

Wireless Equipment Standards

Standards applied for wireless equipment assessment.

CE Marking Information

Explanation of the CE mark and notified body.

National Regulatory Restrictions

Lists countries with specific restrictions for the product.

Appendix D: Regulatory Information (continued)

2.4 GHz Band Restrictions

Details on restrictions for 2.4 GHz band usage.

Third-Party Software Warning

Warning about using unsupported software.

Accessing Technical Documents

How to access additional technical documentation online.

Appendix D: Regulatory Information (continued)

EU WEEE Directive Information

Information on proper disposal and recycling of electronic equipment.

Appendix D: Regulatory Information (continued)

EU Environmental Information (English)

Environmental information for EU customers regarding WEEE.

Appendix D: Regulatory Information (continued)

EU Environmental Information (English)

Detailed environmental information for EU customers.

Appendix D: Regulatory Information (continued)

EU Environmental Information (English)

More environmental info for EU customers.

Appendix E: Software End User License Agreement

Cisco Software Information

Describes software origin and licensing terms for Cisco products.

Software License Locations

Information on where to find applicable software licenses.

Appendix E: Software End User License Agreement (continued)

Cisco Software License Agreement

The primary license agreement for Cisco software.

Software License Restrictions

Limitations on using and distributing the software.

Appendix E: Software End User License Agreement (continued)

Software Ownership Details

Details on ownership of the software and documentation.

Links and Advertising Policy

Cisco's policy on links to third-party sites and advertisers.

Data Collection and Processing

Cisco's practices for collecting user data for services.

Appendix E: Software End User License Agreement (continued)

Network Magic Features and License

Specific features and license terms for Network Magic.

Open Source and Third-Party Licenses

Licenses for open source and third-party software used.

Appendix E: Software End User License Agreement (continued)

GNU General Public License

The GNU General Public License terms for open source software.

GPL Copying, Distribution, Modification

Detailed conditions for copying, distributing, and modifying GPL software.

Appendix E: Software End User License Agreement (continued)

GPL Terms: Modifications and Distribution

Further conditions for GPL software modifications and distribution.

Appendix E: Software End User License Agreement (continued)

GPL Terms: Patents and Warranty

More terms for GPL distribution, patents, and warranty.

GPL No Warranty Clause

Disclaimer of warranties for the GPL software.

Appendix E: Software End User License Agreement (continued)

GNU Lesser General Public License

The GNU Lesser General Public License for libraries.

LGPL Copying, Distribution, Modification

Conditions for copying, distributing, and modifying LGPL software.

Appendix E: Software End User License Agreement (continued)

LGPL Terms: Modifications and Distribution

More terms for LGPL modifications, executables, and source code.

Appendix E: Software End User License Agreement (continued)

LGPL Terms: Executables and Source Code

More terms for LGPL executables and source code distribution.

Appendix E: Software End User License Agreement (continued)

LGPL Terms: Patents and Warranty

More terms for LGPL distribution, patents, and warranty.

Appendix E: Software End User License Agreement (continued)

OpenSSL License

The OpenSSL license terms for cryptographic software.

Appendix E: Software End User License Agreement (continued)

OpenSSL License Conditions

License conditions for redistribution and use of OpenSSL software.

Original SSLeay License

License terms for the original SSLeay SSL implementation.

Appendix E: Software End User License Agreement (continued)

SSLeay License Disclaimer

Disclaimer of warranties and liability for SSLeay software.

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