Linksys WRT120N manual

USER GUIDE Wir eless-N Home Router Model: WRT120N[...]

About This Guide i Wir eless-N Home Router 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: NO TE: This check mark indicates that there is a not e of interest and is something that y ou should pay special attention to while[...]

T able of Contents ii Wir eless-N Home Router Chapter 1: Product O verview 1 Fr ont Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 2: Wireless Security Checklist 3 Gener[...]

T able of Contents iii Wir eless-N Home Router Warranty Inf ormation 31 Limited W arranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Exclusions and Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Obtaining W arranty Ser vice . . . . . . . . . . . . . . [...]

Chapter 1 Produc t Over view 1 Wir eless-N Home Router Chapter 1: Pr oduc t O verview Thank you f or 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. Y ou can also use the Router to share resources such as computers, printers and files[...]

Chapter 1 Produc t Over view 2 Wir eless-N Home Router Wall-Mounting Placement The Router has two wall-mount slots on its bottom panel. The distance between the slots is 152 mm (6 inches). T wo screws ar e needed to mount the Router . Suggested Mounting Hardwar e 2.5-3.0 mm 4-5 mm 1-1.5 mm † Note: Mounting hardware illustrations ar e not true to [...]

Chapter 2 Wireless Security C hecklist 3 Wir eless-N Home Router Chapter 2: W ir eless S ecurity Checklist Wireless networks are conv enient and easy t o install, so homes with high-speed I nternet access are adopting them at a rapid pace. Because wireless network ing operates by sending information over radio waves , it can be more vulnerable to i[...]

Chapter 3 Advanced Configura tion 4 Wir eless-N Home Router Chapter 3: A dvanced C onfiguration After setting up the Router with the Setup Wizard (located on the CD -ROM), the Router will be ready for use. How ever , if you want to change its advanced settings, use the Router ’ s browser-based utility. This chapter describes each web page of the [...]

Chapter 3 Advanced Configura tion 5 Wir eless-N Home Router Automatic C onfiguration - DHCP By default, the R outer’ s Internet C onnec tion T ype is set to Automatic configuration - DHCP , which should be kept only if your ISP supports DHCP or y ou are connecting through a dynamic IP address. ( This option usually applies to cable connections.) [...]

Chapter 3 Advanced Configura tion 6 Wir eless-N Home Router s DNS 1-3 Y our ISP will provide you with at least one DNS (Domain Name System) server IP address. PPTP Server IP Address Y our ISP will pr ovide you with the IP address of the PPTP server . Username and Password Enter the Username and Passw ord provided b y your ISP . Connect on Demand: M[...]

Chapter 3 Advanced Configura tion 7 Wir eless-N Home Router Host Name and Domain Name These fields allow you to supply a host and domain name for the Router . Some ISPs , usually cable ISP s, require these names as identification. Y ou may have to check with your ISP to see if your broadband I nternet service has been configured with a host and dom[...]

Chapter 3 Advanced Configura tion 8 Wir eless-N Home Router addresses to . This number cannot be greater than 253. The default is 50 . IP Address Range Displayed here is the range of available IP addresses. Client Lease T ime The Client Lease Time is the amount of time a net work user will be allowed connec tion to the Router with their current dyn[...]

Chapter 3 Advanced Configura tion 9 Wir eless-N Home Router TZO .com Setup > DDNS > TZO E-mail Address , TZO Key , and Domain Name Enter the settings of the account you set up with TZO . Internet IP A ddress The Router ’ s Internet IP address is displayed her e. Because it is dynamic, it will change. Status The status of the DDNS service co[...]

Chapter 3 Advanced Configura tion 10 Wir eless-N Home Router Route Entries T o set up a static route between the Router and another network, select a number from the drop- down list. Click Delete This En tr y to delete a static rout e. Enter Route Name Enter a name for the Route here, using a maximum of 25 alphanumeric characters. Destination LAN I[...]

Chapter 3 Advanced Configura tion 11 Wir eless-N Home Router Wireless-N channel. Select any channel from the drop- down menu. If you are not sure which channel to select, keep the default, Auto . Standard Channel If 20MH z only is the Channel Width setting, then select the appropriate channel for your wireless network. If you are not sure which cha[...]

Chapter 3 Advanced Configura tion 12 Wir eless-N Home Router Method #3 Use this method if your client device asks for the Router ’ s PIN number . 1. Enter the PIN number listed on this screen. (It is also listed on the label on the bottom of the Router .) 2. After the client device has been configured, click OK . Then refer back to your client de[...]

Chapter 3 Advanced Configura tion 13 Wir eless-N Home Router WP A Ent erprise This option featur es WP A used with a RADIUS ser ver . ( This should only be used when a RADIUS ser ver is connected to the Router .) Security Mode > WP A Enterprise RADIUS Ser ver Enter the IP address of the server . RADIUS P or t Enter the port number of the ser ver[...]

Chapter 3 Advanced Configura tion 14 Wir eless-N Home Router WEP WEP is a basic encr yption method, which is not as secure as WP A. IMPORT ANT: If you are using WEP encryption, then each device in your wireless network MUST use the same WEP encryption method and key , or else the network will not function properly . Security Mode > WEP Encryptio[...]

Chapter 3 Advanced Configura tion 15 Wir eless-N Home Router Wireless Client List Wir eless Client List This screen shows computers and other devices on the wireless network . The list can be sor ted by Client Name, IP Addr ess, MA C Address, and Sta tus. Select S ave t o MAC Addr ess Filter List for an y device you want to add to the MAC Address F[...]

Chapter 3 Advanced Configura tion 16 Wir eless-N Home Router Wireless-G devices are experiencing severe problems and are not able to transmit to the R outer in an environment with heavy 802.11b traffic. This option boosts the Router’ s ability t o ca tch all Wireless-N and Wireless-G transmissions but severely decreases performance. T o use this [...]

Chapter 3 Advanced Configura tion 17 Wir eless-N Home Router this option to enable Java filtering. This option is disabled by default. ActiveX ActiveX is a programming language for websit es. If you deny ActiveX, you run the risk of not having access to Internet sites creat ed using this pr ogramming language. Select this option to enable ActiveX f[...]

Chapter 3 Advanced Configura tion 18 Wir eless-N Home Router Summary Status P olicies ar e disabled by default. T o enable a policy, select the polic y number from the drop -down menu, and select Enabled . T o create a polic y , follow steps 1-11. Repeat these steps to create additional policies , one at a time. 1. Select a number from the Access P[...]

Chapter 3 Advanced Configura tion 19 Wir eless-N Home Router T o delete a ser vice, select it from the Application list. Then click Delete . 11. Click Save Settings to sav e the policy ’ s settings , or click Cancel Changes t o clear the changes. Applications and Gaming > S ingle P or t F or warding The Single Por t F or warding screen allows [...]

Chapter 3 Advanced Configura tion 20 Wir eless-N Home Router Start~End P ort Enter the number or range of port(s) used by the ser ver or Internet applications. Check with the I nternet application documentation for more information. Protoc ol Selec t the protocol(s) used for this application, T CP , UDP , or Both . T o IP Address For each applicati[...]

Chapter 3 Advanced Configura tion 21 Wir eless-N Home Router by MAC address, select MAC Address and enter the MAC address in the field provided . T o retrieve this information, click DHCP Client T able . DMZ > DHCP Client T able DHCP Client T able The DHCP Client T able lists computers and other devices that have been assigned IP addresses by th[...]

Chapter 3 Advanced Configura tion 22 Wir eless-N Home Router Port Range Enter the port range tha t the application will be using. For example, if you want to allocate bandwidth for FTP , you can enter 21-21. If you need ser vices for an application that uses from 1000 to 1250, you enter 1000- 1250 as your settings. Y ou can have up to three ranges [...]

Chapter 3 Advanced Configura tion 23 Wir eless-N Home Router Priority This column displays the bandwidth pr iority of High, Medium, Normal, or Low . Name This column displa ys the application, devic e, or port name. Information This column displays the por t range or MAC address ent ered for your entr y . If a pre-configured application or game was[...]

Chapter 3 Advanced Configura tion 24 Wir eless-N Home Router UPnP Universal Plug and Play (UPnP) allows the appropriate Window s opera ting sy stem to aut omatically configure the Router for various Internet applications, such as gaming and videoconfer encing. UPnP T o use UPnP , keep the default, Enabled . O ther wise, select Disabled . Allow User[...]

Chapter 3 Advanced Configura tion 25 Wir eless-N Home Router Diagnostics Ping T est Ping checks the status of a connection. IP or URL Address Enter the address of the comput er whose connection you wish to test. Pack et Size Enter the packet size you want to use. The default is 32 bytes. Number to Ping Enter the number of times you wish to test the[...]

Chapter 3 Advanced Configura tion 26 Wir eless-N Home Router Firmw are Upgrade Before upg rading the firmwar e, download the Router ’ s firmware upgrade file from the Linksys w ebsite, ww w .linksysby cisco .com . Please selec t a file to upgr ade T o selec t the firmware upgrade file, click Browse and follo w the on-screen instructions. Start to[...]

Chapter 3 Advanced Configura tion 27 Wir eless-N Home Router DHCP Clients T able DHCP Client T able The DHCP Client T able lists computers and other devices that have been assigned IP addresses by the Router . The list can be sorted by IP Address, MAC Address , Interface, and Client Name. T o remove a DHCP client, click Delete . T o update the on-s[...]

Appendix A T roubleshooting 28 Wir eless-N Home Router Appendix A: T roubleshooting Y our computer c annot connect to the Internet. F ollow these instruc tions until your computer can c onnect to the Internet: s Make sure that the Router is powered on. The Pow er LED should be lit and not flashing. s If the Pow er LED is flashing, then pow er off a[...]

Appendix A T roubleshooting 29 Wir eless-N Home Router[...]

Appendix B Specific ations 30 Wir eless-N Home Router Appendix B: Specifications Model WRT120N Standards IEEE 802.3u, 802.11g, 802.11b, Draft 802.11n LEDs Power, Internet, Wireless, Wi-Fi Protected Setup™, Ethernet (1-4) Ports Internet, Ethernet (1-4), Power Buttons Reset, Wi-Fi Protected Setup™ Cabling Type Cat 5 # of Antennas 2 (internal) Det[...]