USER GUIDE Wireless-N Home Router Model: WRT120N About This Guide About This Guide Icon Descriptions While reading through the User Guide you may see various icons that call attention to specific items. Below is a description of these icons: NOTE: This check mark indicates that there is a note of interest and is something that you should pay special attention to while using the product. WARNING: This exclamation point indicates that there is a caution or warning and it is something that could damage your property or product. WEB: This globe icon indicates a noteworthy website address or e-mail address. Online Resources Website addresses in this document are listed without http:// in front of the address because most current web browsers do not require it. If you use an older web browser, you may have to add http:// in front of the web address. Resource Linksys Linksys International Glossary Network Security Website www.linksysbycisco.com www.linksysbycisco.com/international www.linksysbycisco.com/glossary www.linksysbycisco.com/security Copyright and Trademarks Linksys, Cisco and the Cisco Logo are registered trademarks or trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Other brands and product names are trademarks or registered trademarks of their respective holders. Copyright © 2009 Cisco Systems, Inc. All rights reserved. Wireless-N Home Router i Table of Contents Chapter 1: Product Overview 1 Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 2: Wireless Security Checklist 3 General Network Security Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Additional Security Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Chapter 3: Advanced Configuration 4 Setup > Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Setup > DDNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Setup > MAC Address Clone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Setup > Advanced Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Wireless > Basic Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Wireless > Wireless Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Wireless > Wireless MAC Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Wireless > Advanced Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Security > Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Security > VPN Passthrough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Access Restrictions > Internet Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Applications and Gaming > Single Port Forwarding. . . . . . . . . . . . . . . . . . . . . . . .19 Applications and Gaming > Port Range Forwarding . . . . . . . . . . . . . . . . . . . . . . .19 Applications & Gaming > Port Range Triggering . . . . . . . . . . . . . . . . . . . . . . . . . .20 Applications and Gaming > DMZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Applications and Gaming > QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Administration > Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Administration > Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Administration > Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Administration > Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Administration > Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Status > Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Status > Local Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Status > Wireless Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Appendix A: Troubleshooting Appendix B: Specifications Appendix C: Warranty Information 28 29 30 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Wireless-N Home Router ii Table of Contents Appendix D: Regulatory Information 32 FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 FCC Radiation Exposure Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Safety Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Industry Canada Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Avis d'Industrie Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Wireless Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Avis de non-responsabilité concernant les appareils sans fil . . . . . . . . . . . . . . . . . .33 User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic Equipment (WEEE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Appendix E: Software End User License Agreement 38 Cisco Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Software Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Wireless-N Home Router iii Chapter 1 Product Overview Wireless (Blue) The Wireless LED lights up when the wireless feature is enabled. If the LED is flashing, the Router is sending or receiving data over the network. Internet (Blue) The Internet LED lights up when there is a connection made through the Internet port. It flashes to indicate network activity over the Internet port. Power (Blue) The Power LED lights up and will stay on while the Router is powered on. When the Router goes through its self-diagnostic mode during every boot-up, this LED will flash. When the diagnostic is complete, the LED will be solidly lit. Chapter 1: Product Overview Thank you for choosing the Linksys by Cisco Wireless-N Home Router. The Router lets you access the Internet via a wireless connection or through one of its four switched ports. You can also use the Router to share resources such as computers, printers and files. A variety of security features help to protect your data and your privacy while you are online. Security features include WPA2 security, a Stateful Packet Inspection (SPI) firewall, and NAT technology. Configuring the Router is easy using the provided browser­based utility. Front Panel Back Panel 1, 2, 3, 4 (Blue) These numbered LEDs, corresponding with the numbered ports on the Router's back panel, serve two purposes. If the LED is continuously lit, the Router is successfully connected to a device through that port. A flashing LED indicates network activity over that port. Wi-Fi Protected Setup Button If you have client devices, such as wireless adapters, that support Wi-Fi Protected Setup, then you can use Wi-Fi Protected Setup to automatically configure wireless security for your wireless network. To use Wi-Fi Protected Setup, run the Setup Wizard, or refer to Wi-Fi Protected Setup, page 11. Wi-Fi Protected Setup LED (Blue/ Amber) The LED lights up blue when wireless security is enabled. It flashes blue for two minutes during Wi-Fi Protected Setup. The LED lights up amber if there is an error during the Wi-Fi Protected Setup process. Make sure the client device supports Wi-Fi Protected Setup. Wait until the LED is off, and then try again. The LED flashes when a Wi-Fi Protected Setup session is active. The Router supports one session at a time. Wait until the LED is solidly lit, or off before starting the next Wi-Fi Protected Setup session. Internet The Internet port is where you will connect your cable or DSL Internet connection. 4, 3, 2, 1 These Ethernet ports (4, 3, 2, 1) connect the Router to computers on your wired network and other Ethernet network devices. Reset The Reset button is located on the right side of the product label. There are two ways to reset the Router to its factory defaults. Either press and hold the Reset button for approximately five seconds, or restore the defaults from the Administration > Factory Defaults screen of the Router's browser-based utility. Power The Power port connects to the included power adapter. Horizontal Placement The Router has four rubber feet on its bottom panel. Place the Router on a level surface near an electrical outlet. Wireless-N Home Router 1 Chapter 1 Product Overview Wall-Mounting Placement The Router has two wall-mount slots on its bottom panel. The distance between the slots is 152 mm (6 inches). Two screws are needed to mount the Router. Suggested Mounting Hardware 2.5-3.0 mm 4-5 mm true to scale. 1-1.5 mm Note: Mounting hardware illustrations are not NOTE: Linksys is not responsible for damages incurred by insecure wall-mounting hardware. Follow these instructions: 1. Determine where you want to mount the Router. Make sure that the wall you use is smooth, flat, dry, and sturdy. Also make sure the location is within reach of an electrical outlet. 2. Drill two holes into the wall. Make sure the holes are 152 mm (6 inches) apart. 3. Insert a screw into each hole and leave 3 mm (0.12 inches) of its head exposed. 4. Maneuver the Router so the wall-mount slots line up with the two screws. 5. Place the wall-mount slots over the screws and slide the Router down until the screws fit snugly into the wall-mount slots. 152 mm Print this page at 100% size. Cut along the dotted line, and place on the wall to drill precise spacing. Wall-Mounting Template Wireless-N Home Router 2 Chapter 2 Wireless Security Checklist Chapter 2: Wireless Security Checklist Wireless networks are convenient and easy to install, so homes with high-speed Internet access are adopting them at a rapid pace. Because wireless networking operates by sending information over radio waves, it can be more vulnerable to intruders than a traditional wired network. Like signals from your cellular or cordless phones, signals from your wireless network can also be intercepted. Since you cannot physically prevent someone from connecting to your wireless network, you need to take some additional steps to keep your network secure. 4. Enable encryption Encryption protects data transmitted over a wireless network. Wi-Fi Protected Access (WPA/WPA2) and Wired Equivalent Privacy (WEP) offer different levels of security for wireless communication. A network encrypted with WPA/WPA2 is more secure than a network encrypted with WEP, because WPA/WPA2 uses dynamic key encryption. To protect the information as it passes over the airwaves, you should enable the highest level of encryption supported by your network equipment. WEP is an older encryption standard and may be the only option available on some older devices that do not support WPA. 1. Change the default wireless network name or SSID Wireless devices have a default wireless network name or Service Set Identifier (SSID) set by the factory. This is the name of your wireless network, and can be up to 32 characters in length. Linksys wireless products use linksys as the default wireless network name. You should change the wireless network name to something unique to distinguish your wireless network from other wireless networks that may exist around you, but do not use personal information (such as your Social Security number) because this information may be available for anyone to see when browsing for wireless networks. General Network Security Guidelines Wireless network security is useless if the underlying network is not secure. · · · · Password protect all computers on the network and individually password protect sensitive files. Change passwords on a regular basis. Install anti-virus software and personal firewall software. Disable file sharing (peer-to-peer). Some applications may open file sharing without your consent and/or knowledge. 2. Change the default password For wireless products such as access points and routers, you will be asked for a password when you want to change their settings. These devices have a default password set by the factory. The Linksys default password is admin. Hackers know these defaults and m ...