LINKSYS NWR11B Wireless-B Broadband Router User Manual NWR11B user guide

LINKSYS LLC Wireless-B Broadband Router NWR11B user guide

Contents

User Manual Part 1

COPYRIGHT & TRADEMARKS Copyright © 2003 Network Everywhere, All Rights Reserved. Network Everywhere andLinksys are registered trademarks of Linksys. Microsoft, Windows, and the Windowslogo are registered trademarks of Microsoft Corporation. All other trademarks and brandnames are the property of their respective proprietors. LIMITED WARRANTY Network Everywhere guarantees that every Wireless-B Broadband Router will be freefrom physical defects in material and workmanship for one year from the date of pur-chase, when used within the limits set forth in the Specifications section of this UserGuide. If the product proves defective during this warranty period, call NetworkEverywhere Technical Support in order to obtain a Return Authorization number. BESURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. Whenreturning a product, mark the Return Authorization number clearly on the outside of thepackage and include a copy of your original proof of purchase. RETURN REQUESTSCANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. All customers locatedoutside of the United States of America and Canada shall be held responsible for ship-ping and handling charges.IN NO EVENT SHALL NETWORK EVERYWHERE’S LIABILITY EXCEED THE PRICE PAIDFOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSE-QUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOM-PANYING SOFTWARE, OR ITS DOCUMENTATION. NETWORK EVERYWHERE OFFERSNO REFUNDS FOR ITS PRODUCTS. Network Everywhere makes no warranty or repre-sentation, expressed, implied, or statutory, with respect to its products or the contents oruse of this documentation and all accompanying software, and specifically disclaims itsquality, performance, merchantability, or fitness for any particular purpose. NetworkEverywhere reserves the right to revise or update its products, software, or documenta-tion without obligation to notify any individual or entity. Please direct all inquiries to:Network Everywhere P.O. Box 18558, Irvine, CA 92623. FCC STATEMENTThe Wireless-B Broadband Router has been tested and complies with the specificationsfor a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits aredesigned to provide reasonable protection against harmful interference in a residentialinstallation. This equipment generates, uses, and can radiate radio frequency energyand, if not installed and used according to the instructions, may cause harmful interfer-ence to radio communications. However, there is no guarantee that interference will notoccur in a particular installation. If this equipment does cause harmful interference toradio or television reception, which is found by turning the equipment off and on, the useris encouraged to try to correct the interference by one or more of the following measures:• Reorient or relocate the receiving antenna• Increase the separation between the equipment or devices• Connect the equipment to an outlet other than the receiver’s• Consult a dealer or an experienced radio/TV technician for assistanceNWR11B-UG-31030NC BWTable of ContentsChapter 1: Introduction 1The Wireless Broadband Router 1Features 1An Introduction to LANs and WANs 2IP Addresses 2The Router’s Ports 4The Router’s LEDs 5Chapter 2: Planning Your Wireless Network 7Network Topology 7Roaming 7Chapter 3: Connecting the Router 8Before You Start 8Connecting Your Hardware Together and Booting Up 8Chapter 4: Configuring the PCs 10Overview 10Configuring Windows 98 SE and Millennium PCs 10Configuring Windows 2000 PCs 12Configuring Windows XP PCs 14Chapter 5: The Router’s Web-based Utility 16Overview 16Logging In 16Setup 17Password 22Status 23DHCP 24Log 25Help 26Advanced 27IP Filtering 28Forwarding 31Dynamic Routing 37Static Routing 38DMZ Host 40MAC Address Clone 41Wireless 42
Wireless-B Broadband RouterChapter 1: IntroductionThe Wireless Router lets you securely share your DSL or Cable ModemInternet connection with all the computers in the house, both wireless andwired. You can connect four computers directly to the Router by Ethernetcables, and daisy-chain out to more hubs and switches to create as big a net-work as you need.Or, use the Router's built-in Wireless Access Point to connect your PC to thenetwork without stringing any wires. Just plug a wireless network adapter intoyour notebook through a PC Card slot, and you're ready to go. Wireless net-working doesn't get any easier.Of course, you can connect more computers to the Router and your high-speedInternet link -- just provide a wired or wireless network adapter for each one.And once your computers are connected to the Router, they can communicatewith each other too, sharing resources like printers and all kinds of files --music, digital pictures, and documents. To protect your data and privacy, all wireless communications can be protect-ed by 128-bit encryption, while the Router helps keep Internet intruders out ofyour computers. It's all easier than you think -- the included Setup Wizardswalk you through configuring the Router, step by step.With the Wireless-B Broadband Router, you're ready to start sharing printers,files, and your Internet connection, the easy way.• 11 Mbps High-Speed Data Transfer Rate with Automatic Fallback• Plug-and-Play Operation Provides Easy Setup• 802.11b, DSSS, 2.4GHz-Compliant• Supports up to 128-bit WEP Encryption Security• Compatible with Virtually All Major Network Operating Systems• Free Driver Upgrades via Web• Remote administration and upgrade feature• Integrated Equalizer Recovers Weak Signals and Enhances Sensitivity• Sturdy Metal Design with Integrated Antenna• Works with All Standard Internet Applications• Clear Channel Assessment Increases Network Throughput• Hardware Buffer Chaining Provides High Performance While Reading andWriting BuffersThe Wireless Broadband RouterFeaturesNetwork Everywhere®SeriesAppendix A: Troubleshooting 45Common Problems and Solutions 45Frequently Asked Questions 57Appendix B: How to Ping Your ISP’s E-mail and Web Addresses 63Appendix C: Configuring Wireless Security 66Configuring Wireless Security in Windows XP 69Appendix D: Finding the MAC Addressand IP Address for Your Ethernet Adapter 74Appendix E: Glossary 78Appendix F: Specifications 87Environmental 87Appendix G: Warranty Information 88Appendix H: Contact Information 891
Wireless-B Broadband RouterNetwork Everywhere®Series2Dynamic IP AddressesA dynamic IP address is automatically assigned to a device on the network,such as PCs and print servers. These IP addresses are called “dynamic”because they are only temporarily assigned to the PC or device. After a certaintime period, they expire and may change. If a PC logs on to the network (or theInternet) and its dynamic IP address has expired, the DHCP server will assignit a new dynamic IP address.For DSL users, many ISPs may require you to log on with a user name andpassword to gain access to the Internet. This is called “Point to Point Protocolover Ethernet” or PPPoE. PPPoE is similar to a dial-up connection but does nothave a phone number to dial into, and PPPoE is a dedicated high-speed con-nection. PPPoE also will provide the Router with a dynamic IP address toestablish a connection to the Internet.DHCP (Dynamic Host Configuration Protocol) ServersDHCP frees you from having to assign IP addresses manually every time a newuser is added to your network. PCs and other network devices using dynamicIP addressing are assigned a new IP address by a DHCP server. The PC or net-work device obtaining an IP address is called the DHCP client. The Router’sInternet port is, by default, set as a DHCP client.DHCP servers can either be a designated PC on the network or another networkdevice, such as the Router. By default, a DHCP server is enabled on yourRouter’s LAN ports. If you already have a DHCP server running on your net-work, you must disable one of the two DHCP servers. If you run more than oneDHCP server on your network, you will experience network errors, such asconflicting IP addresses. To disable the Router’s DHCP function, see theDHCP section in Chapter 5: The Router’s Web-Based Utility.NNoottee::Even if you assign a static IP address to a PC, other PCs can still useDHCP’s dynamic IP addressing, as long as the static IP is not within theDHCP range of the LAN IP Address.If the Router’s DHCP function fails to provide a dynamic IP address for anyreason, please refer to Appendix A: Troubleshooting.NNoottee::Since the Router is a device that connects two networks, it needs twoIP addresses—one for the LAN side, and one for the Internet side. In thisUser Guide, you’ll see references to the “Internet IP address” and the “LANIP address.”Since the Router has firewall security (NAT), only the Router’s Internet IPaddress can be seen from the Internet.However, even the Internet IP address can be blocked, so that the Router andnetwork seem invisible to the Internet—This is shown in the Filters section in“Chapter 5: The Routers Web-Based Utility”. Simply put, a router is a network device that connects two networks together. In this instance, the Router connects your Local Area Network (LAN), or thegroup of PCs in your home or office, to the Wide Area Network (WAN) that isthe Internet. The Router processes and regulates the data that travels betweenthese two networks. Think of the Router as a network device with two sides. The first side is madeup of your private Local Area Network (LAN) of PCs. The other, public sideis the Internet, or the Wide Area Network (WAN), outside of your home oroffice. The Router’s firewall (NAT) protects your network of PCs so users on the pub-lic, Internet side cannot “see” your PCs. This is how your LAN, or network,remains private. The Router protects your network by inspecting the first pack-et coming in from the Internet port before delivery to the final destination onthe LAN port. The Router inspects Internet port services like the web server,ftp server, or other Internet applications, and, if allowed, it will forward thepacket to the appropriate PC on the LAN side.What’s an IP Address?IP stands for Internet Protocol. Every device on an IP-based network, includ-ing PCs, print servers, and routers, requires an IP address to identify its “loca-tion,” or address, on the network. This applies to both the Internet and LANconnections.There are two ways of assigning an IP address to your network devices. Static IP AddressesA static IP address is a fixed IP address that you assign manually to a PC orother device on the network. Since a static IP address remains valid until youdisable it, static IP addressing insures that the device assigned it will have thatsame IP address until you change it. Static IP addresses are commonly usedwith network devices such as server PCs or print servers.If you use the Router to share your cable or DSL Internet connection, contactyour ISP to find out if they have assigned a static IP address to your account.If so, you will need that static IP address when configuring the Router. You canget the information from your ISP.IP AddressesAn Introduction to LANs and WANs3
Network Everywhere®Series4Wireless-B Broadband Router5The LAN Indicators, shown in Figure 1-2, show the status of information beingtransmitted within your local networkWireless-B Green. This LED indicates that the Router’s wireless func-tions have been enabled through the Web-based utility andthere is wireless activity.Power Green. This LED indicates that the Router’s power is on.When blinking, this LED indicates that the Router is in self-diagnosis mode during boot-up and restart. It will stop blink-ing after completing the diagnosis. If this LED blinks formore than five seconds, refer to the TroubleshootingAppendix.Ethernet Green. This LED serves two purposes. When this LED is litcontinuously, this indicates that the Router is connected to adevice through the corresponding port (1, 2, 3, or 4). A blink-ing LED indicates that the Router is actively sending orreceiving data over that port. The Router’s LEDsTThhee RReesseett BBuuttttoonnPressing the Reset Button and holding it in for a few seconds will clear allof the Router’s data and restore the factory defaults. This should be doneonly if you are experiencing heavy routing problems, and only after youhave exhausted all of the other troubleshooting options. By resetting theRouter, you run the risk of creating conflicts between your PCs’ actual IPAddresses and what the Router thinks their IP Addresses should be. Youmay be forced to reboot each network PC.If the Router locks up, simply press the reset button or power it down forthree to five seconds by removing the power cable from the Router’sPower Port. Leaving the power off for too long could result in the loss ofnetwork connections.Figure 1-2The Router’s rear panel (as shown in Figure 1-1) is where all of its connectionsare made.Internet The Internet Port is where you will connect your cable orDSL modem with an Ethernet cable. Your modem con-nection will not work from any other port. Ports 1, 2, 3, 4 These four LAN (Local Area Network) ports are whereyou will connect networked devices, such as PCs, printservers, and any other Ethernet devices you want to puton your network. Power The Power Port is where you will connect the includedAC Power adapter.Figure 1-1The Router’s Ports
Wireless-B Broadband Router7Chapter 2: Planning Your WirelessNetworkA wireless LAN is exactly like a regular LAN, except that each computer in theLAN uses a wireless adapter to connect to the network through a wireless con-nection. Computers in a wireless LAN must be configured to share the sameradio channel.The wireless adapter provides LAN access for wireless workstations. An inte-grated wireless and wired LAN is called an Infrastructure configuration. Agroup of wireless adapter users and this Router compose a Basic Service Set(BSS). Each PC equipped with a wireless adapter in a BSS can talk to anycomputer in a wired LAN infrastructure via this Router.An infrastructure configuration extends the accessibility of a PC with a wire-less adapter to a wired LAN, and doubles the effective wireless transmissionrange for two PCs equipped with a wireless adapter Infrastructure mode also supports roaming capabilities for mobile users. Morethan one BSS can be configured as an Extended Service Set (ESS). This con-tinuous network allows users to roam freely within an ESS. All PCs that areequipped with a wireless adapter, and are within one ESS, must be configuredwith the same ESS ID.Before enabling an ESS with roaming capability, it is recommended to select afeasible radio channel and optimum Router position. Proper positioning com-bined with a clear radio signal will greatly enhance performance.RoamingNetwork TopologyNetwork Everywhere®Series6The Internet indicators, shown in Figure 1-2, show the status of informationbeing transmitted to and from the Internet.Internet Green. This LED indicates a connection between the Routerand your broadband device or network.
Wireless-B Broadband Router9Network Everywhere®Series84. Connect the Power Adapter (included) to the Router’s Power port and plugthe other end into a power outlet.• The Power LED will blink green as soon as the power adapter is con-nected.5. Power on the cable or DSL modem. Verify that the power is on by checkingthe Internet LED in the Internet column on the front of the Router. TheLink LED will be illuminated if the power is on and the modem is ready.6. Press the Reset button on the back of the Router. Hold the button in for threeseconds. This restores the Router’s default settings.7. Power on your PC.The Router is now connected.Continue to the next chapter to configure your PCs.For Wireless Connections: In addition to accessing the Router through anEthernet connection, a wireless connection can be used to access the Router.After powering on the Router and connecting it to your modem, enter theRouter’s IP Address in the Address field of your wireless PC’s web-browser asfollows: http://192.168.1.1 and press Enter.IImmppoorrttaanntt:: The Router is configured by default to work out of the box withall Network Everywhere Wireless Adapters. If you have changed thedefaults on your Network Everywhere Wireless Adapters, or are usingother wireless adapters, you must temporarily change your wirelessadapter settings to: (SSID = wireless) in order to initially access the Routerwirelessly. After you have accessed the Router with the default settings,you can change the Router’s settings to coincide with your Network set-tings and reset your adapters.IImmppoorrttaanntt:: Some ISPs—most notably some cable providers—configuretheir networks so that you do not have to enter a full Internet address intoyour web browser or e-mail application to reach your home page orreceive your e-mail. If your Internet home page address is something verysimple, such as “www”, rather than “www.networkeverywhere.com”, oryour e-mail server’s address is something similar to “e-mail” or “pop3”,rather than “pop.mail.networkeverywhere.com”, you won’t be able toproperly configure the Router until you determine the actual Internetaddresses of your Web and e-mail connections.You mmuussttobtain this information prior to connecting the Router to your net-work. You can obtain this information by contacting your ISP.Chapter 3: Connecting the RouterBefore plugging everything together, it’s always a good idea to have everythingyou’ll need to get the Router up and running. Depending upon how you con-figure the Router in Chapter 5: The Router’s Web-based Utility, you may needsome of the following values from your ISP:When connecting through a Static IP connection, be sure to have 1) Yourbroadband-configured PC’s fixed Internet IP Address, 2) Your broadband-configured PC’s Computer Name and Workgroup Name, 3) Your SubnetMask, 4) Your Default Gateway, and 5) Your Primary DNS IP address.When connecting through a PPPoE connection, be sure to have 1) YourPPPoE User Name and 2) Your PPPoE Password.The installation technician from your ISP should have left this information withyou after installing your broadband connection. If not, you can call your ISP torequest the data.Once you have the above values, you can begin the Router’s installation andsetup.Once you are sure that you have the above values on hand, you can begin theInstallation and Setup of the Router.1. Power everything down, including your PCs, your cable or DSL modem andthe Router.2. Connect an Ethernet cable from one of your PC’s Ethernet ports to one of theRouter’s Ethernet ports. Do the same with all the PCs you wish to connect tothe Router. In addition to accessing the Router through an Ethernet connection, a wire-less connection can be used to access the Router. See the “For WirelessConnections” note that follows these connection instructions.3. Connect another Ethernet cable from your cable or DSL modem to theRouter’s Internet port.Before You StartConnecting Your Hardware Together and Booting Up
Wireless-B Broadband Router112. Select the Configuration taband highlight the TCP/IPline for the applicableEthernet adapter (as shownin Figure 4-1). If the wordTCP/IP appears by itself,select that line. (Note: Ifthere is no TCP/IP line listed,refer to your Ethernetadapter’s documentation toinstall TCP/IP now.) Then,click the Properties button.3. Click the IP Address tab andselect Obtain an IP addressautomatically (as shown infigure 4-2).4. Click the Gateway tab and verify that the Installed Gateway field is blank.Click the OK button.Figure 4-1Figure 4-2Network Everywhere®Series10Chapter 4: Configuring the PCsThese instructions will help you configure each of your computers to commu-nicate with the Router.To do this, you will need to configure your PC’s network settings to obtain anIP (or TCP/IP) address automatically. Computers use IP addresses to commu-nicate with each other across a network or the Internet.You will need to know which operating system your computer is running, suchas Windows 98 SE, Millennium, 2000, or XP. You can find out by clicking theStart button and then selecting the Settings option. (If your Start menu does-n’t have a Settings option, you’re running Windows XP. You can select theControl Panel directly from the Start Menu.) Then, click Control Panel anddouble-click the System icon. Click the Cancel button when done.Once you know which Windows operating system you are running, follow thedirections in this step for your computer’s operating system. If you PC is notconfigured with the TCP/IP protocol, you will need to do this for each com-puter you are connecting to the Router.The next few pages tell you, step by step, how to configure your TCP/IP set-tings based on the type of Windows operating system you are using. Onceyou've configured your computers, continue to Chapter 5: The Router’s Web-based Utility.1. Click the Start button, click Settings and open the Control Panel. Fromthere, double-click the Network icon to open the Network screen.OverviewConfiguring Windows 98 SE and Millennium PCs
Wireless-B Broadband Router13Network Everywhere®Series124. Select Internet Protocol(TCP/IP) (as shown inFigure 4-4) and click theProperties button.5. Select Obtain an IPaddress automaticallyand verify that ObtainDNS server addressautomatically is selected(as shown in Figure 4-5).Then, click the OK but-ton and click the OK but-ton on the subsequentscreens to complete thePC’s configuration.Repeat steps 1-5 for each PC on your network. When all of your PCs areconfigured, proceed to Chapter 5: The Router’s Web-based Utility.Figure 4-4Figure 4-55. Click the OK button again. Windows may ask you for the originalWindows installation disk or additional files. Supply them by pointing tothe correct file location, e.g., D:\win98, D:\win9x,c:\windows\options\cabs, etc. (This assumes that “D” is the letter of yourCD-ROM drive).6. If Windows asks you to restart your PC, click the Ye s button. If Windowsdoes not ask you to restart, restart your computer anyway.Repeat steps 1-6 for each PC on your network. When all of your PCs areconfigured, proceed to Chapter 5: The Router’s Web-based Utility.1. Click the Start button, click Settings and open the Control Panel. Fromthere, double-click the Network and Dial-up Connections icon. This willdisplay the Network screen.2. Select the Local AreaConnection icon for theapplicable Ethernetadapter (usually it is thefirst Local AreaConnection listed).3. When the Local Area Connection Status screen appears, click theProperties button. (See Figure 4-3.)Configuring Windows 2000 PCsFigure 4-3
Wireless-B Broadband Router154. Select Internet Protocol(TCP/IP) (as shown inFigure 4-7) and click theProperties button.5. Select Obtain an IPaddress automatically andverify that Obtain DNSserver address automati-cally is selected (as shownin Figure 4-8). Then, clickthe OK button and click theOK button on the subse-quent screens to completethe PC’s configuration.Repeat steps 1-5 for each PC on your network. When all of your PCs areconfigured, proceed to Chapter 5: The Router’s Web-based Utility.Figure 4-7Figure 4-8Network Everywhere®Series14The following instructions assume you are running Windows XP’s defaultinterface. If you are using the Classic interface (where the icons and menuslook like previous Windows versions), please follow the instructions forWindows 2000.1. Click the Start button, open the Control Panel. and click the Network andInternet Connections icon. Then, click the Network Connections icon todisplay the Network screen.2. Select the Local AreaConnection icon for theapplicable Ethernetadapter (usually it is thefirst Local AreaConnection listed). 3. When the Local Area Connection Status screen appears, click theProperties button. (See Figure 4-6.)Configuring Windows XP PCsFigure 4-6
Wireless-B Broadband Router17Network Everywhere®SeriesChapter 5: The Router’s Web-based UtilityUse the Router’s web-based utility to administer it. This chapter will describeeach web page in the Utility and each page’s key functions. The utility can beaccessed via your web browser through use of a computer connected to theRouter.For a basic network setup, most users only have to use the following screens ofthe utility:• Setup Enter the settings provided by your ISP.• Password The Router’s default password is admin. To secure the Router,change the Password from its default.The WEP, Status, DHCP, Log, and Help tabs are also available for basic setup.For advanced setup, click the Advanced Setup tab to access these screens:Filters, Forwarding, Dynamic Routing, Static Routing, DMZ Host, MAC AddrClone, and Wireless.To access the web-based utility of the Router, launch Internet Explorer orNetscape Navigator, and enter the Router’s default IP address, 192.168.1.1, inthe Address field, as shown in Figure 5-1. Then, press Enter. 16Upon entering the address into the web browser, a password request page willpop up, as shown in Figure 5-2a. (Windows XP users will see a “Connect to192.168.1.1” window, shown in Figure 5-2b.)Leave the User Name field empty, and enter admin (the default password) inlowercase letters in the Password field. Then, click the OK button. To apply any of the settings you change on a page of the Utility, click the Applybutton. To cancel any values you’ve entered on any page of the Utility, clickthe Cancel button.The Setup screen, shown in Figure 5-3, is the first screen you see when youaccess the web-based utility. If you have already installed and set up the Router,you have already seen this screen and properly configured all of the screen’svalues. Some options on this screen remain the same while the InternetConnection option will change depending on how you connect to the Internet.The main options are described first, with all of the Internet Connection typesfollowing.Host Name/Domain Name These fields allow you to supply a host anddomain name for the Router. Some ISPs require these names as identification.You may have to check with your ISP to see if your broadband Internet servicehas been configured with a host and domain name. In most cases, leaving thesefields blank will work. SetupFigure 5-2aFigure 5-2bOverviewLogging InFigure 5-1Note: If your PC’s Windows operating system supports UniversalPlug and Play (UPnP), Windows will offer to create a desktop short-cut to the Router. Click the OK button to create the desktop icon, andthen double-click the icon to connect to the Router. Otherwise, con-nect to the Router manually, as directed in steps 1 and 2.
Wireless-B Broadband RouterWireless (Enable/Disable). In order to utilize the Router’s wireless functions,select Enable. If you do not wish to utilize any wireless functions, make sureDisable is selected. (Note: No other wireless functions will be available unlessyou enable this setting.)SSID: The SSID is a unique name for your wireless network. It is case sen-sitive and must not exceed 32 characters. The default SSID is "wireless "but you should change this to a personal wireless network name. All wire-less points in your network must use the same SSID. Verify that you areusing the correct SSID and click the Apply button to set it.SSID Broadcast - Allows the SSID to be broadcast on your network. Youmay want to enable this function while configuring the Router, but makesure that you disable it when you are finished. With this enabled, someonecould easily obtain the SSID information with site survey software and gainunauthorized access to your network. Click Enable to broadcast. ClickDisable to increase network security and prevent the SSID from being seenon networked PCs.Channel Select the appropriate channel from the list provided to corre-spond with your network settings, between 1 and 11. All points in yourwireless network must use the same channel in order to function correctly.Verify that the correct channel is selected and click the Apply button to setit.WEP (Mandatory/Disable). In order to utilize WEP encryption, selectEnable. If you do not wish to utilize WEP encryption, make sure Disableis selected.Internet Connection Type The Router supports three connection types:DHCP, PPPoE, and Static IP. Each Setup screen and available features will dif-fer depending on what kind of connection type you select.Obtain an IP Address AutomaticallyBy default, the Router’s Internet Connection is set to Obtain an IP auto-matically, as shown in Figure 5-3, and it should be used only if your ISPsupports DHCP.To apply any of the settings you’ve changed on this page, click the Applybutton. To cancel any values you’ve entered on this page, click the Cancelbutton. If you should need any further information about anything on thisscreen, click the Help button.19Network Everywhere®SeriesFirmware Version This entry shows the version and date of the firmware theRouter is using. Future versions of the Router’s firmware will be posted andavailable for download on the Network Everywhere website atwww.NetworkEverywhere.com.LAN IP Address The values for the Router’s IP Address and Subnet Mask areshown here. The default values are 192.168.1.1 for the Device IP Address and255.255.255.0 for the Subnet Mask.18Note: To configure WEP encryption, seeAppendix C: Configuring Wireless Security.Figure 5-3
Wireless-B Broadband Router21Network Everywhere®Series20PPPoESome DSL-based ISPsuse PPPoE (Point-to-Point Protocol overEthernet) to establishInternet connections. Ifyou are connected tothe Internet through aDSL line, check withyour ISP to see if theyuse PPPoE. If they do,you will have to enablePPPoE, shown inFigure 5-5.User Name andPassword Enter theUser Name andPassword provided byyour ISP.Connect on Demand: Max Idle Time You can configure the Router to cutthe connection with your ISP after a specified period of time (Max IdleTime). If you have been disconnected due to inactivity, Connect on Demandenables the Router to automatically re-establish your connection as soon asyou attempt to access the Internet again. If you wish to activate Connect onDemand, click the radio button. In the Max Idle Time field, enter the num-ber of minutes you want to have elapsed before your Internet access dis-connects.Keep Alive Option: Redial Period If you select this option, the Router willperiodically check your Internet connection. If you are disconnected, thenthe Router will automatically re-establish your connection. To use thisoption, click the radio button next to Keep Alive. In the Redial Period field,enter the number of seconds you want the Redial Period to last. The defaultRedial Period is 30 seconds.To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel but-ton. If you should need any further information about anything on this screen,click the Help button.Figure 5-5Important: If you enable PPPoE, remember to remove anyPPPoE applications that are already installed on any of your PCs. Note: Successfully connection to theInternet means these settings are correct.Static IPIf you are requiredto use a permanentIP address, thenselect Static(Fixed) IPaddress, shown inFigure 5-4.IP Address This is the Router’s IP address, when seen from the Internet, orthe Internet. Your ISP will provide you with the IP Address you need to spec-ify here. Subnet Mask This is the Router’s Subnet Mask, as seen by external users onthe Internet (including your ISP). Your ISP will provide you with the SubnetMask.Default Gateway Address Your ISP will provide you with the DefaultGateway Address, which is the ISP’s IP address.DNS (Required) 1-3 Your ISP will provide you with at least one DNS(Domain Name System)Server IP Address.To apply any of the settings you’ve changed on this page, click the Apply but-ton.. To cancel any values you’ve entered on this page, click the Cancel but-ton. If you should need any further information about anything on this screen,click the Help button.Figure 5-4Note: Successfully connection to theInternet means these settings are correct.
Wireless-B Broadband Router23Network Everywhere®Series22The Status screen,shown in Figure 5-7displays the Router’scurrent status; itreflects the data andselections you’veentered using theSetup screen. All of the informa-tion provided on thisscreen is read-only.To make changes,select the Setup tab. Host Name This field shows the Router’s name.Firmware Version This field shows the installed version and date of thefirmware.Login This indicates if you are using a dial-up style connection, e.g., PPPoE.For PPPoE only, there is a Connect button to click if you are disconnected andwant to re-establish a connection.LAN These fields display the Router’s current MAC Address, IP Address, andSubnet Mask, as seen by users on your local area network. The DHCP Serverfield shows the status of the Router’s DHCP server function, which is eitherenabled or disabled.Internet These fields display the Router’s current MAC Address, IP Address,Subnet Mask, and Default Gateway IP Address, as seen by external users on theInternet. The DNS (Domain Name System) fields show the IP address(es) of StatusFigure 5-7Note: The information provided and buttons available will vary depending onthe Router’s settings. The Password screen, shown in Figure 5-6, allows you to set up a password andUPnP Services. You can also restore default settings on the Router.Router Password Set a password for the Router. You can use up to 64 alphanu-meric characters. The default password is admin. If you don’t change the pass-word, all users on your network will be able to access the Router using thedefault password. For greater security, you should change the password from itsdefault setting.UPnP Services Universal Plug and Play (UPnP) allows Windows XP to auto-matically configure the Router for various Internet applications, such as gam-ing and videoconferencing. Click the radio button next to Enable to enableUPnP Services, or Disable to disable UPnP Services.Restore Factory Defaults If you select the Restore Factory Defaults optionand click the Apply button, you will clear all of the Router’s settings. Do notrestore the factory defaults unless you are having difficulties with the Routerand have exhausted all other troubleshooting measures. Once the Router isreset, you will have to re-enter all of your configuration data. To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.Figure 5-6Password
Wireless-B Broadband Router25Network Everywhere®Series24DHCP Server DHCP is already enabled by factory default. If you alreadyhave a DHCP server on your network, set the Router’s DHCP option toDisable. Click the Apply button. If you disable DHCP, remember to assign astatic IP address to the Router. Starting IP Address Enter a value for the DHCP server to start with whenissuing IP addresses. This value must be 192.168.1.2 or greater, because theRouter’s default IP address is 192.168.1.1.Number of DHCP Users (Optional) Enter the maximum number of PCs forthe DHCP server to assign IP addresses. This number cannot be greater than253.DNS 1-3 The Domain Name System (DNS) is how the Internet translatesdomain or website names into Internet addresses or URLs. Your ISP will pro-vide you with at least one DNS Server IP Address. If you wish to use another,type that IP Address in one of these fields. You can type up to three DNS ServerIP Addresses here. The Router will use these for quicker access to functioningDNS servers.DHCP Clients Table Click the DHCP Clients Table button to show the cur-rent DHCP Client data. (This data is stored in temporary memory and changesperiodically.)To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.The Log tab, shown in Figure 5-9, provides you with a log of all incoming andoutgoing URLs or IP addresses for your Internet connection. Access Log To access activity logs, select the Enable option next to AccessLog. This function can be disabled by clicking the Disable radio button.Temporary logs can be accessed from the Log screen by clicking either theIncoming Access Log or Outgoing Access Log button. The Incoming AccessLog gives you a log of all the incoming Internet traffic while the OutgoingAccess Log lists all the URLs and IP addresses of Internet sites that users onyour network have accessed.Logthe DNS server(s) currently used by the Router. Multiple DNS IP settings arecommon. In most cases, the first available DNS entry is used. The DHCPServer, DHCP leased Time, and DHCP Time Remaining are also shown.DHCP Release Available for a DHCP connection, click the DHCP Releasebutton to release the current IP address of the device connected to the Router’sInternet port.DHCP Renew Available for a DHCP connection, click the DHCP Renew but-ton to replace the current IP address of the device that is connected to theRouter’s Internet port with a new IP address.DHCP Clients Table Click the DHCP Clients Table button to view the list ofPCs that were given IP addresses by the Router.DHCPFrom the DHCP screen, shown in Figure 5-8, you can configure the settings toyour DHCP server. A Dynamic Host Configuration Protocol (DHCP) serverautomatically assigns an IP address to each PC on your network for you. Unlessyou already have one, it is highly recommended that you leave the Routerenabled as a DHCP server.DHCPFigure 5-8
Wireless-B Broadband Router27Network Everywhere®Series26Online manual in PDF format and Adobe Website Clicking the Online man-ual in PDF format link will take you to the latest version of the user guide forthis Router. The guide will be in Adobe Acrobat Portable Document File (.pdf)format. You will need the Adobe Acrobat Reader to view this pdf. If you do nothave the Acrobat Reader, click the Adobe Website link to download it. Theselinks work only if you are connected to the Internet.Upgrade Firmware New firmware versions are posted atwww.NetworkEverywhere.com and can be downloaded for free. If the Routercan access the Internet already, there’s no need to download a newer firmwareversion, unless that version has a new feature that you want to use. (To learnabout any new firmware with new features, visitwww.NetworkEverywhere.com.) Loading new firmware onto the Router doesnot always enhance the speed or the quality of your connection. To upgrade the Router’s firmware:1. Download the firmware upgrade file from www.NetworkEverywhere.com,and extract the file using archive software such as WinZip.2. Select the Help tab (see Figure 5-10).3. Click Upgrade Firmware to display a new window. 4. Click the Browse button to find the firmware upgrade file you extracted. 5. Double-click the firmware file you extracted. Click the Upgrade buttonand follow the on-screen instructions.The following instructions are for advanced users or users whose setup requirespecial configuration. When you click the Advanced Setup tab, you will be ableto set up these features. There are seven additional tabs available. •Filters - Filters block specific internal users from Internet access and enableVirtual Private Network (VPN) sessions.•Forwarding - Sets up public services on your network.Note: By upgrading the Router’s firmware, you may lose the Router’sconfiguration settings.Advanced SetupIf you should need any further information about anything on this screen, clickthe Help button.Under the Help tab, shown in Figure 5-10, you’ll find links to all of the utili-ty’s internal support documentation along the left margin, including the fol-lowing:Network Everywhere Website Clicking this link will take you to NetworkEverywhere’s website, www.NetworkEverywhere.com, provided you are con-nected to the Internet. Figure 5-9HelpFigure 5-10
Wireless-B Broadband Router29Network Everywhere®Series•Dynamic Routing - Sets up the Router so it will automatically adjust to phys-ical changes in the network’s layout.•Static Routing - Sets up static routes needed when network information musttravel to a specific host or network.•DMZ Host - Allows one local user to be exposed to the Internet for use of spe-cial-purpose services such as online gaming or videoconferencing.•MAC Address Cloning - Allows you to “clone” your Ethernet adapter’s MACaddress onto the Router.•Wireless - Allows you to set up advanced wireless settings.From the Filters screen, shown in Figure 5-11, you can block specific internalusers from accessing the Internet and enable Virtual Private Network (VPN)sessions. You can set up filters by using IP addresses or network port numbers(or a range of ports).Filtered Private IP Range To set up a filter using IP addresses, enter the rangeof IP addresses you wish to filter in the IP address fields. Users with filteredIP addresses will not be able to access the Internet at all. If you only want tofilter one IP address instead of a range of IP addresses, enter the same valueinto both fields. For instance, if you wish to filter the PC with the IP addressof 192.168.1.5, enter 5into both fields on one line: 192.168.1.5 ~ 192.168.1.5.Click the Apply button when finished. Filtered Private Port Range To filter users by network port number, enter anetwork port number or a range of network ports. Select the protocol for eachport number you want to filter, TCP or UDP. Enter the port numbers you wantto filter in the port numbers fields. Users connected to the Router will nolonger be able to access any port number listed there. Click the Apply buttonwhen you’re done. 28Private MAC Filter This feature filters the Ethernet adapter’s specific MACaddress from going out to the Internet. To check your Ethernet adapter’s MAC address, run winipcfg or ipconfig inthe command prompt, depending on which Windows operating system you areusing. To set the MAC filter, click the Edit MAC Filter Setting button. Whena second window appears (see Figure 5-14), select the range in the drop-downbox, and at the MAC number prompt, enter the 12-digit MAC address you wantto filter. Click the Apply button and the Continue button, before closing thewindow. For information on obtaining a MAC address, go to “Appendix D:Finding the MAC Address and IP Address for Your Ethernet Adapter.”Figure 5-11Filters
Wireless-B Broadband Router31Network Everywhere®Series30To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.UPnP ForwardingClicking the Forwarding tab will access the UPnP Forwarding screen, shown inFigure 5-12. This screen displays preset application settings as well as optionsfor customization of port services for other applications. ForwardingFigure 5-12Block WAN Requests By enabling the Block WAN Request feature, you canprevent your network from being “pinged,” or detected, by other Internetusers. The Block WAN Request feature also reinforces your network securityby hiding your network ports. Both functions of the Block WAN Request fea-ture make it more difficult for outside users to work their way into your net-work. This feature is enabled by default.IPSec Pass Through This feature lets you use IPSec Pass Through. IPSecPass Through is enabled by default. To disable IPSec Pass Through, click on Disable.PPTP Pass Through Point-to-Point Tunneling Protocol is the method used toenable VPN sessions. PPTP Pass Through is enabled by default.To disable this feature, click on Disable next to PPTP Pass Through.L2TP Pass Through This feature lets you use L2TP Pass Through. L2TP PassThrough is enabled by default. To disable this feature, click on Disable next to L2TP Pass Through.Remote Management This feature allows you to manage the Router from aremote location, via the Internet. To enable this feature, click on Enable, andenter the desired port number (default is 8080). Click the Apply button andthen the Continue button. Remote Management must be activated before youcan manage the Router from a remote location. If you wish to use this featureon the browser, enter http:\\<WAN IP Address>:8080. (Enter your specificInternet IP Address in place of <WAN IP Address>.) Remote Managementinvolves an inherent security risk and should not be enabled without firstchanging the Password (from the Setup screen) from its default settings.To disable this feature, click on Disable.Use default MTU (Maximum Transmission Unit) This feature specifies thelargest packet size permitted for network transmission. Select Enable and enterthe value desired. You should leave this value in the 1200 to 1500 range. MostDSL users should use the value 1492. For static and dynamic connections, thedefault MTU value is set at 1500 when disabled. For PPPoE connections, thedefault MTU value is set at 1492 when disabled.
Wireless-B Broadband Router33Network Everywhere®Series32• NNTP (Network News Transfer Protocol) The protocol used to connect toUsenet groups on the Internet. • SNMP (Simple Network Management Protocol) A widely used networkmonitoring and control protocol. Data is passed from SNMP agents, whichare hardware and/or software processes reporting activity in each networkdevice (switch, router, bridge, etc.) to the workstation console used to over-see the network. The agents return information contained in a MIB(Management Information Base), which is a data structure that defineswhat is obtainable from the device and what can be controlled (turned off,on, etc.). Enter the number of the internal port used by the server in the Int. Port col-umn. Check with the Internet application software documentation for moreinformation.Enter the IP address of the server that you want the Internet users to be able toaccess. For information about finding the IP address, go to “Appendix D:Finding the MAC Address and IP Address for Your Ethernet Adapter.”You must check the Enable box to enable the applications you have defined.To add a Customized Application using UPnP Forwarding:1. Enter the name of the application in the appropriate CustomizedApplications field. 2. Next to the name of the application, enter the number of the external portused by the server in the Ext. Port column. Check with the Internet appli-cation software documentation for more information.3. On the same line, select Protocol TCP or Protocol UDP. 4. Enter the number of the internal port used by the server in the Int. Port col-umn. Check with the Internet application software documentation for moreinformation.5. Enter the IP address of the server that you want the Internet users to be ableto access. For information about finding the IP address, go to “Appendix D:Finding the MAC Address and IP Address for Your Ethernet Adapter.”6. Check the Enable box to enable the services you have defined. UPnPForwarding will not function if the Enable button is left unchecked. This isdisabled (unchecked) by default.The Preset Applications at the top of the list are among the most widely usedInternet applications. They include the following:• FTP (File Transfer Protocol) A protocol used to transfer files over aTCP/IP network (Internet, UNIX, etc.). For example, after developing theHTML pages for a website on a local machine, web developers typicallyupload the files to the web server using FTP. FTP includes functions to logonto the network, list directories, and copy files. FTP operations can be per-formed by typing commands at a command prompt or via an FTP utilityrunning under a graphical interface such as Windows. FTP transfers canalso be initiated from within a web browser by entering the URL precededby ftp://.• Telnet A terminal emulation protocol commonly used on Internet andTCP/IP-based networks. It allows a user at a terminal or computer to logonto a remote device and run a program.• SMTP (Simple Mail Transfer Protocol) The standard e-mail protocol onthe Internet. It is a TCP/IP protocol that defines the message format and themessage transfer agent (MTA), which stores and forwards the mail. • DNS (Domain Name System) The way that Internet domain names arelocated and translated into IP addresses. A domain name is a meaningfuland easy-to-remember “handle” for an Internet address.• TFTP (Trivial File Transfer Protocol) A version of the TCP/IP FTP proto-col that has no directory or password capability.• Finger A UNIX command widely used on the Internet to find out infor-mation about a particular user, such as his or her telephone number, whetherthe user is currently logged on, and the last time the user was logged on. Theperson being “fingered” must have placed his or her profile on the systemin order for the information to be available. Fingering requires entering thefull user@domain address, for example, name@universityname.edu.• HTTP (HyperText Transport Protocol) The communications protocol usedto connect to servers on the World Wide Web. Its primary function is toestablish a connection with a web server and transmit HTML pages to theclient web browser. • POP3 (Post Office Protocol 3) A standard mail server commonly used onthe Internet. It provides a message store that holds incoming e-mail untilusers log on and download it. POP3 is a simple system with little selectivi-ty. All pending messages and attachments are downloaded at the same time.POP3 uses the SMTP messaging protocol. (SMTP may also need to be for-warded.)
Wireless-B Broadband Router35Network Everywhere®Series34Port Range Forwarding sets up public services on your network, such as webservers, ftp servers, e-mail servers, or other specialized Internet applications.(Specialized Internet applications are any applications that use Internet accessto perform functions such as videoconferencing or online gaming. SomeInternet applications may not require any forwarding.) When users send thistype of request to your network via the Internet, the Router will forward thoserequests to the appropriate PC. Before using Forwarding, the Router’s DHCPfunction must be disabled under the DHCP tab and the Router must be assigneda new static LAN IP address because the IP address may change when usingthe DHCP server.If you need to forward all ports to one PC, see the “DMZ” section.To add a Customized Application using Port Range Forwarding:1. Enter the name of the application in the appropriate CustomizedApplication field. 2. Next to the name of the application, enter the number of the external portused by the server in the Ext. Port column. Check with the Internet appli-cation software documentation for more information.3. On the same line, select Protocol TCP or Protocol UDP. 4. Enter the IP address of the server that you want the Internet users to be ableto access. For information about finding the IP address, go to “Appendix D:Finding the MAC Address and IP Address for Your Ethernet Adapter.”5. Check the Enable box to enable the services you have defined. Port RangeForwarding will not function if the Enable button is left unchecked. This isdisabled (unchecked) by default.6. Configure as many entries as needed—the Router supports up to 10 rangesof ports. Click the Apply button.To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.To apply any of the settings you’ve changed on this page, click the Apply but-ton.. To cancel any values you’ve entered on this page, click the Cancel but-ton. If you should need any further information about anything on this screen,click the Help button.Port Range ForwardingClick the View Port Range Forwarding button to access the Port RangeForwarding screen, shown in Figure 5-13. To return to the UPnP Forwardingscreen, click the View UPnP Forwarding button.Figure 5-13
Wireless-B Broadband Router37Network Everywhere®Series36From the Dynamic Routing screen, shown in Figure 5-15, you can enable theRouter to automatically adjust to physical changes in the network’s layout. TheRouter, using the RIP protocol, determines the network packets’ route based onthe fewest number of hops between the source and the destination. The RIP pro-tocol regularly broadcasts routing information to other routers on the network.To set up Dynamic Routing:1. Choose the correct Working Mode. Gateway mode should be used if theRouter is hosting your network’s connection to the Internet. Router modeshould be selected if the Router exists on a network with other routers. InRouter Mode, any computer connected to the Router will not be able to con-nect to the Internet unless you have another router functioning in theGateway mode.2. Choose a Dynamic Routing path protocol for either transmission (TX:) orreception (RX:) of network data by selecting Enabled.Click the Show Routing Table button to open a chart displaying how data isrouted through your LAN.Dynamic RoutingFigure 5-15Port TriggeringFrom the Port RangeForwarding or UPnPForwarding screens,click the PortTriggering button toaccess the PortTriggering screen,shown in Figure 5-14.This allows the Routerto watch outgoing datafor specific port num-bers. The IP address ofthe computer that sendsthe matching data isremembered by theRouter, so that whenthe requested datareturns through theRouter, the data ispulled back to the prop-er computer by way ofIP address and portmapping rules.1. Enter the Application Name of the trigger.2. Enter the Trigger Port Range used by the application. Check with theInternet application for the port number needed.3. Enter the Incoming Port Range used by the application. Check with theInternet application for the port number needed.4. Click the Apply button. Click the Cancel button to cancel any valuesyou’ve entered.Figure 5-14
Wireless-B Broadband Router39Network Everywhere®Series38To delete a Static Routing entry, select an entry, and click the Delete thisentry button.2. Enter the following data to create a new static route.Destination LAN IP: The Destination LAN IP is the address of the remotenetwork or host to which you want to assign a static route. Enter the IPaddress of the host for which you wish to create a static route here. If youare building a route to an entire network, be sure that the network portionof the IP address is set to 0. For example, the Router’s standard IP addressis 192.168.1.1. Based on this address, the address of the routed network is192.168.1.x, with the last digit “x” determining the Router’s place on thenetwork. Therefore you would enter the IP address 192.168.1.0 if you want-ed to route to the Router’s entire network, rather than just to the Router.Subnet Mask: The Subnet Mask determines which portion of an IPaddress is the network portion, and which portion is the host portion. Take,for example, a network in which the Subnet Mask is 255.255.255.0. Thisdetermines (by using the values 255) that the first three numbers of a net-work IP address identify this particular network, while the last digit (from1 to 254) identifies the specific host.Default Gateway: This IP address should be the IP address of the gatewaydevice that allows for contact between the Router and the remote networkor host.Hop Count: This determines the maximum number of steps between net-work nodes that data packets will travel. A node is any device on the net-work, such as PCs, print servers, routers, etc. The maximum metric, ormeasure, of hops is 15.Interface: Select LAN or WA N , depending on the location of the staticroute’s final destination.To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.If the Router is connected to more than one network, it may be necessary to setup a static route between them. This can be accomplished from the StaticRouting screen, shown in Figure 5-16. A static route is a pre-determined path-way that network information must travel to reach a specific host or network.From the Static Routing tab, click the Show Routing Table button to view thecurrent static routing configuration.To create a static route entry:1. Select a Static Route Entry from the drop-down list. The Router supportsup to 20 static route entries. Static RoutingFigure 5-16
Wireless-B Broadband Router41Network Everywhere®Series40The Router’s MAC address is a 12-digit code assigned to a unique piece ofhardware for identification, like a social security number. If your ISP requiresMAC address registration, find your adapter’s MAC address by following theinstructions in “Appendix D: Finding the MAC Address and IP Address forYour Ethernet Adapter.”Enter the 12 digits of your adapter’s MAC address in the on-screen fields (seeFigure 5-18). This “clones” your Ethernet adapter’s MAC address onto theRouter, so you do NOT have to call your ISP to change the registered MACaddress to the Router’s MAC address. To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.MAC Address CloneFigure 5-18From the DMZ Host screen, shown in Figure 5-17, you can expose one localuser to the Internet for a special-purpose service such as Internet gaming andvideoconferencing. Port Range Forwarding forwards a maximum of 10 ranges of ports, and DMZHosting forwards all the ports for one PC at the same time. DMZ Hosting isless secure.•To expose one PC, enter the computer’s IP address. For more informationabout finding a computer’s IP address, refer to “Appendix D: Finding theMAC Address and IP Address for Your Ethernet Adapter.”•Deactivate DMZ by entering 0in the field. (This is the default setting.)To apply any of the settings you’ve changed on this page, click the Apply but-ton. To cancel any values you’ve entered on this page, click the Cancel button.If you should need any further information about anything on this screen, clickthe Help button.DMZ HostFigure 5-17
Wireless-B Broadband Router• RTS Threshold. This value should remain at its default setting of 2,346.Should you encounter inconsistent data flow, only minor modifications arerecommended.• Fragmentation Threshold. This value indicates how much of the Router’sresources are devoted to recovering packet errors. The value should remainat its default setting of 2,346. If you have decreased this value and experi-ence high packet error rates, you can increase it again, but it will likelydecrease overall network performance. Only minor modifications of thisvalue are recommended.• DTIM Interval. This value indicates the interval of the Delivery TrafficIndication Message (DTIM). A DTIM field is a countdown field informingclients of the next window for listening to broadcast and multicast mes-sages. When the Router has buffered broadcast or multicast messages forassociated clients, it sends the next DTIM with a DTIM Interval value.Clients for the Router hear the beacons and awaken to receive the broadcastand multicast messages. • Basic Rates. The basic transfer rates should be set depending on the speedof your wireless network. You must select 1-2 (Mbps) if you have older802.11 compliant equipment on your network, such as wireless adaptersthat support only 1 or 2 Mbps. Selecting 1-2 (Mbps), however, does notlimit the basic transfer rates of faster adapters.• TX Rates. Select all the rate at which you wish the Router to communicatewithin your wireless network. • Preamble Type. The preamble defines the length of the CRC block forcommunication between the Router and the roaming Network Card. (Highnetwork traffic areas should use the shorter preamble type.) Select theappropriate preamble type and click the Apply button to set it.• Authentication Type. You may choose between Open System, SharedKey, and Both. The Authentication Type default is set to Open System, inwhich the sender and the recipient do NOT share a secret key. Each partygenerates its own key-pair and asks the receiver to accept the randomly-generated key. Once accepted, this key is used for a short time only. Thena new key is generated and agreed upon. Shared Key is when both thesender and the recipient share a secret key.43Network Everywhere®Series42Before making any changes to the Wireless tab, shown in Figure 5-19, pleasecheck the wireless settings for all your wireless PCs, as these changes will alterthe Router’s effectiveness. In most cases, these settings do not need to bechanged.• Beacon Interval. This value indicates the frequency interval of the beacon.A beacon is a packet broadcast by the Router to keep the network synchro-nized. A beacon includes the wireless LAN service area, the IP address, theBroadcast destination addresses, a time stamp, Delivery Traffic IndicatorMaps, and the Traffic Indicator Message (TIM).WirelessFigure 5-19

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