LINKSYS WAP54GV2 Wireless-G Access Point User Manual WAP54G ug 30713B

LINKSYS LLC Wireless-G Access Point WAP54G ug 30713B

Users Manual

Wireless-G Access PointUse this guide to install:WAP54G v2 User Guide
COPYRIGHT & TRADEMARKS Specifications are subject to change without notice. Linksys is a registered trademark ortrademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other coun-tries. Copyright © 2003 Cisco Systems, Inc. All rights reserved. Other brands and prod-uct names are trademarks or registered trademarks of their respective holders.LIMITED WARRANTYLinksys warrants to the original end user purchaser ("You") that, for a period of three years, (the"Warranty Period”). Your Linksys product will be free of defects in materials and workmanshipunder normal use. Your exclusive remedy and Linksys's entire liability under this warranty willbe for Linksys at its option to repair or replace the product or refund Your purchase price lessany rebates.If the product proves defective during the Warranty Period call Linksys Technical Support inorder to obtain a Return Authorization Number. BE SURE TO HAVE YOUR PROOF OF PUR-CHASE ON HAND WHEN CALLING. When returning a product, mark the Return AuthorizationNumber clearly on the outside of the package and include a copy of your original proof of pur-chase. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE.You are responsible for shipping defective products to Linksys. Linksys pays for UPS Groundshipping from Linksys back to You only. Customers located outside of the United States ofAmerica and Canada are responsible for all shipping and handling charges. ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD. ALLOTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,INCLUDING ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Somejurisdictions do not allow limitations on how long an implied warranty lasts, so the above limi-tation may not apply to You. This warranty gives You specific legal rights, and You may alsohave other rights which vary by jurisdiction.TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FORANY LOST DATA, REVENUE OR PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL,INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED REGARDLESS OF THE THEORYOF LIABILITY, ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THEPRODUCT, EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAM-AGES. IN NO EVENT WILL LINKSYS' LIABILITY EXCEED THE AMOUNT PAID BY YOU FORTHE PRODUCT. The foregoing limitations will apply even if any warranty or remedy provided under this Sectionfails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of inci-dental or consequential damages, so the above limitation or exclusion may not apply to You.Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.FCC STATEMENTThis (WAP54G v2) has been tested and complies with the specifications fora Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designedto provide reasonable protection against harmful interference in a residential installation.This equipment generates, uses, and can radiate radio frequency energy and, if notinstalled and used according to the instructions, may cause harmful interference to radiocommunications. However, there is no guarantee that interference will not occur in a par-ticular installation. If this equipment does cause harmful interference to radio or televisionreception, which is found by turning the equipment off and on, the user is encouraged totry 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 device• Connect the equipment to an outlet other than the receiver’s• Consult a dealer or an experienced radio/TV technician for assistance
Federal Communication Commission Interference StatementThis equipment has been tested and found to comply with the limits for a Class B digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonableprotection against harmful interference in a residential installation. This equipment generates,uses and can radiate radio frequency energy and, if not installed and used in accordance withthe instructions, may cause harmful interference to radio communications. However, there is noguarantee that interference will not occur in a particular installation. If this equipment does causeharmful interference to radio or television reception, which can be determined by turning theequipment off and on, the user is encouraged to try to correct the interference by one of thefollowing measures:- Reorient or relocate the receiving antenna.- Increase the separation between the equipment and receiver.- Connect the equipment into an outlet on a circuit different from that to which the receiver isconnected.- Consult the dealer or an experienced radio/TV technician for help.FCC Caution: To assure continued compliance, any changes or modifications not expresslyapproved by the party responsible for compliance could void the user’s authority to operate thisequipment.This device complies with Part 15 of the FCC Rules. Operation is subject to the following twoconditions: (1) This device may not cause harmful interference, and (2) this device must acceptany interference received, including interference that may cause undesired operation.IMPORTANT NOTE:FCC Radiation Exposure Statement:This equipment complies with FCC radiation exposure limits set forth for an uncontrolledenvironment. This equipment should be installed and operated with minimum distance 20cmbetween the radiator & your body.This transmitter must not be co-located or operating in conjunction with any other antenna ortransmitter.
Wireless-G Access PointTable of ContentsChapter 1: Introduction 1The Instant Wireless Wireless-G Access Point 1Features 1Chapter 2: Planning Your Wireless Network 2Network Topology 2Roaming 2Chapter 3: Getting to Know the Wireless-GAccess Point 3The Wireless-G Access Point’s Back Panel 3The Wireless-G Access Point’s Front Panel 4Chapter 4: Connecting the Wireless-G Access Point 5Chapter 5: Setting Up the Wireless-G Access Point 6Chapter 6: Configuring the Wireless-G Access Point 14The Setup Tab 14The Password Tab 18The AP Mode Tab 19The Status Tab 21The Log Tab 23The Help Tab 24The Filter Tab 25The Advanced Wireless Tab 27The SNMP Tab 29Appendix A: Troubleshooting 30Frequently Asked Questions 30INDUSTRY CANADA (CANADA)This Class B digital apparatus complies with Canadian ICES-003.Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.The use of this device in a system operating either partially or completely outdoors may requirethe user to obtain a license for the system according to the Canadian regulations.EC DECLARATION OF CONFORMITY (EUROPE)Linksys Group declares that the Instant Wireless™ Series products included in the InstantWireless™ Series conform to the specifications listed below, following the provisions of the EMCDirective 89/336/EEC and Low Voltage Directive 73/23/EEC:ETS 300-826, 301 489-1 General EMC requirements for Radio equipment.EN 609 50 SafetyETS 300-328-2 Technical requirements for Radio equipment.Note: This equipment is intended to be used in all EU and EFTA countries. Outdoor use maybe restricted to certain frequencies and/or may require a license for operation. For moredetails, contact Linksys Corporate Compliance.Note: Combinations of power levels and antennas resulting in a radiated power level of above100 mW are considered as not compliant with the above mentioned directive and are notallowed for use within the European community and countries that have adopted the EuropeanR&TTE directive 1999/5/EC and/or the CEPT recommendation Rec 70.03. For more details onlegal combinations of power levels and antennas, contact Linksys Corporate Compliance.Linksys Group vakuuttaa täten että Instant Wireless IEEE 802.11 PC Card tyyppinen laite ondirektiivin 1999/5/EY, direktiivin 89/336/EEC ja direktiivin 73/23/EEC oleellisten vaatimusten jasitä koskevien näiden direktiivien muiden ehtojen mukainen.Linksys Group déclare que la carte PC Instant Wireless IEEE 802.11 est conforme aux condi-tions essentielles et aux dispositions relatives à la directive 1999/5/EC, la directive 89/336/EEC,et à la directive 73/23/EEC.Belgique B L’utilisation en extérieur est autorisé sur le canal 11 (2462 MHz), 12 (2467 MHz), et13 (2472 MHz).Dans le cas d’une utilisation privée, à l’extérieur d’un bâtiment, au-dessus d’un espace public,aucun enregistrement n’est nécessaire pour une distance de moins de 300m. Pour une dis-tance supérieure à 300m un enregistrement auprès de l’IBPT est requise. Pour une utilisationpublique à l’extérieur de bâtiments, une licence de l’IBPT est requise. Pour les enregistrementset licences, veuillez contacter l’IBPT.France F: Bande de fréquence restreinte: seuls les canaux 10, 11, 12, 13 (2457, 2462, 2467,et 2472 MHz respectivement) doivent être utilisés en France.Toute utilisation, qu'elle soit intérieure ou extérieure, est soumise à autorisation. Vous pouvezcontacter l'Autorité de Régulation des Télécommuniations (<http://www.art-telecom.fr>) pour la procédure à suivre.France F: Restricted frequency band: only channels 10, 11, 12, 13 (2457, 2462, 2467, and2472 MHz respectively) may be used in France. License required for every indoor and outdoorinstallations. Please contact ART for procedure to follow.Deutschland D: Anmeldung im Outdoor-Bereich notwending, aber nicht genehmi-gungspflichtig. Bitte mit Händler die Vorgehensweise abstimmen.Germany D: License required for outdoor installations. Check with reseller for procedure to fol-lowItalia I: E' necessaria la concessione ministeriale anche per l'uso interno. Verificare con i riven-ditori la procedura da seguire. L'uso per installazione in esterni non e' permessa.Italy I: License required for indoor use. Use with outdoor installations not allowed.the Netherlands NL License required for outdoor installations. Check with reseller for proce-dure to follow.Nederlands NL Licentie verplicht voor gebruik met buitenantennes. Neem contact op metverkoper voor juiste procedure
Wireless-G Access PointChapter 1: IntroductionWireless-G Access PointWireless-G is the upcoming 54Mbps wireless networking standard that'salmost five times faster than the widely deployed Wireless-B (802.11b) prod-ucts found in homes, businesses, and public wireless hotspots around the coun-try — but since they share the same 2.4GHz radio band, Wireless-G devicescan also work with existing 11Mbps Wireless-B equipment. The Linksys Wireless-G Access Point lets you connect Wireless-G or Wireless-B devices to the network. Since both standards are built in, you can protect yourinvestment in existing 802.11b infrastructure, and migrate your network clientsto the new screaming fast Wireless-G standard as your needs grow.To protect your data and privacy, the Wireless-G Access Point can encrypt allwireless transmissions. The MAC Address filter lets you decide exactly whohas access to your wireless network. Configuration is a snap with the webbrowser-based configuration utility.Future-proof your wireless network with the Linksys Wireless-G Access Point.You'll enjoy Wireless-B connectivity today, and be prepared for a high-speedWireless-G tomorrow.• Set up a high-speed Wireless-G (802.11g) network in your home or office• Data rates up to 54Mbps -- 5 times faster than Wireless-B (802.11b)• Also interoperates with Wireless-B networks (at 11Mbps)• Advanced wireless security with 128-bit WEP encryption, WPA, and MACfiltering• Free Technical Support—24 Hours a Day, 7 Days a Week, Toll-Free U.S.Calls• 3-Year Limited Warranty1FeaturesAppendix B: Setting Up the TCP/IP and IPX Protocols 35Setting Up TCP/IP in Windows 35TCP/IP Setup for Windows 98 and Millennium 36IPX Setup for Windows 98 and Millennium 36TCP/IP Setup for Windows NT 4.0 37IPX Setup for Windows NT 4.0 37TCP/IP Setup for Windows 2000 38IPX Setup for Windows 2000 38TCP/IP Setup for Windows XP 39Appendix C: Glossary 40Appendix D: Specifications 48Environmental 49Appendix E: Warranty Information 50Appendix F: Contact Information 51
Wireless-G Access PointChapter 3: Getting to Know theWireless-G Access PointThe Access Point’s ports, where a network cable is connected, are located onthe Access Point’s back panel.Reset Button There are two ways to Reset the Access Point’s factorydefaults. Either press the Reset Button using a small,pointed object like a ball-point pen, for approximately tenseconds, or restore the defaults from the password tab inthe Access Point’s Web-Based Utility.LAN This LAN (Local Area Network) port connects toEthernet network devices, such as a hub, switch, orrouter.Power The Power port is where you will connect the poweradapter.32The Wireless-G Access Point’s Back PanelFigure 3-1Important: Resetting the Access Point will erase all of your settings(WEP Encryption, Wireless and LAN settings, etc.) and replacethem with the factory defaults. Do not reset the Access Point if youwant to retain these settingsChapter 2: Planning YourWireless NetworkA wireless LAN is a group of computers, each equipped with one InstantWireless Series adapter. Computers in a wireless LAN must be configured toshare the same radio channel.The Instant Wireless Series adapters provide access to a wired LAN for wire-less workstations. An integrated wireless and wired LAN is called an infra-structure configuration. A group of Instant Wireless Series adapter users andan Instant Wireless Wireless-G Access Point compose a Basic Service Set(BSS). Each Instant Wireless Series adapter PC in a BSS can talk to any com-puter in a wired LAN infrastructure via the Wireless-G Access Point.An infrastructure configuration extends the accessibility of an Instant WirelessSeries adapter PC to a wired LAN, and doubles the effective wireless trans-mission range for two Instant Wireless Series adapter PCs. Since the Wireless-G Access Point is able to forward data within its BSS, the effective transmis-sion range in an infrastructure LAN is doubled.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 equippedwith an Instant Wireless Series adapter within one ESS must be configuredwith the same ESS ID and use the same radio channel.Before enabling an ESS with roaming capability, choosing a feasible radiochannel and optimum Wireless-G Access Point position is recommended.Proper Access Point positioning combined with a clear radio signal will great-ly enhance performance.RoamingNetwork Topology
Wireless-G Access PointChapter 4: Connecting theWireless-G Access Point 1. Locate an optimum location for the Access Point. The best place for theAccess Point is usually at the center of your wireless network, with line ofsight to all of your mobile stations.2. Fix the direction of the antenna. Try to place it in a position that can bestcover your wireless network. Normally, the higher you place the antenna,the better the performance will be. The antenna’s position enhances thereceiving sensitivity.3. Connect a standard Ethernet network cable to the Access Point. Then,connect the other end of the Ethernet cable to a switch or hub. The AccessPoint will then be connected to your 10/100 Network.4. Connect the AC Power Adapter to the Access Point’s Power port andplug the other end into an electrical outlet. Only use the power adaptersupplied with the Access Point. Use of a different adapter may result inproduct damage. Now that the hardware installation is complete, proceed to Chapter 5: SettingUp the Wireless-G Access Point for directions on how to set up the AccessPoint.54Note: In order for all other wireless devices to communicate withthe Access Point, those devices must be operating inInfrastructure Mode. If any wireless devices are configured inAd Hoc Mode, they will not be recognized by the Access Point.TPower Green. The Power LED lights up when the Access Point ispowered on.54g Act Green. If the Act LED is flickering, the Access Point is activeand ready for sending or receiving data to or from one of thedevices on the network.Link Green. The Link LED lights whenever there is a successfulwireless connection.The Wireless-G Access Point’s Front PanelFigure 3-2
Wireless-G Access Point3. The following screen, shown in Figure 5-2, displays how the Access Pointis configured in this Setup Wizard. Optimally, you should perform thissetup through a PC on your wired network. Click the Next button to con-tinue or Exit to exit the Setup Wizard.7Chapter 5: Setting Up theWireless-G Access PointNow that you’ve connected the Access Point to your wired network, you areready to begin setting it up. This Setup Wizard will take you through all thenecessary steps to configure the Access Point.1. Insert the Setup Wizard CD into your PC’s CD-ROM drive. Your PC mustbe on your wired network to set up the Access Point. 2. The Setup Wizard should run automatically, and the screen in Figure 5-1should appear on your monitor. If it does not, start the Setup Wizard man-ually by clicking the Start button, selecting Run, and typing d:\setup.exe(where “D” is your PC’s CD-ROM drive). Click the Setup button to con-tinue this Setup Wizard. Clicking the User Guide button opened this UserGuide. To exit this Setup Wizard, click the Exit button.6Figure 5-2Figure 5-1Have You: Connected the Access Point to a hub, switch or routeron your wired network as shown in Chapter 4: Connecting theWireless-G Access Point? The Access Point can only be set upthrough your wired network.Note: The Access Point has been designed to work correctly rightout of the box, but setting it up on a wireless computer will requireyou to use the Linksys default settings. These settings can then bechanged with the Setup Wizard or Web-based Browser Utility.
Wireless-G Access Point6. As shown in Figure 5-5, the IP Settings screen will appear next. Enter anIP Address, Subnet Mask, and enter a unique name for the Access Point thatis appropriate to your network. Then, click the Next button to continue orBack to return to the previous page.• IP Address. This IP address must be unique to your network. (Thedefault IP address is 192.168.1.245.) • Subnet Mask. The Access Point’s Subnet Mask must be the same as yourEthernet network.• AP Name. Assign a name to the Access Point. Unique, memorable namesare helpful, especially if you are employing multiple access points on thesame network.984. The next screen to appear, shown in Figure 5-3, will display a list of accesspoints on your network along with the status information for each accesspoint. If this is the only access point on your network, it will be the only onedisplayed. If there are more than one displayed, select the Access Point byclicking on it and click the Ye s button to continue or No to exit the SetupWizard.5. You will be asked to sign on to the Access Point you’ve selected, as shownin Figure 5-4. Enter the Password you’ve assigned. If none has beenassigned, enter the default password: admin. Then, click the OK button.(This password can be changed at the Web-based Utility’s Password tab.)Figure 5-3Figure 5-4Figure 5-5
Wireless-G Access Point8. The Security Settings screen (Figure 5-7) will appear next. From thisscreen, you will set the Wired Equivalent Privacy (WEP) encryption foryour wireless network. Select a WEP configuration method and apassphrase. Click the Next button to continue or Back to return to the pre-vious page.• WEP (Disable/64 bits (10 hex digits)/128 bits (26 hex digits)). In orderto utilize WEP encryption, select the WEP setting from the pull-downmenu, 64 bits (10 hex digits) or 128 bits (26 hex digits). If you do notwish to utilize WEP encryption, make sure Disabled is selected. TheAccess Point’s WEP encryption is unique to Linksys and may conflictwith other vendors’ WEP encryption.• Passphrase. Instead of manually entering WEP keys, you can enter aPassphrase. This Passphrase is used to generate one or more WEP keys.It is case-sensitive and should not be longer than 16 alphanumeric char-acters. (The Passphrase function is compatible with Linksys wirelessproducts only. If you want to communicate with non-Linksys wirelessproducts, you will need to enter your WEP keys manually on the non-Linksys wireless products.)1110Figure 5-77. As shown in Figure 5-6, the Basic Settings screen will appear. Enter yourwireless network’s SSID and select the channel at which the network broad-casts its wireless signal. Then, click the Next button to continue or Back toreturn to the previous page.• SSID. The SSID is the unique name shared among all devices in a wire-less network. The SSID must be the same for all devices in the wirelessnetwork. It is case sensitive, must not exceed 32 characters, and may beany keyboard character. • Channel. Select the appropriate channel from the list provided to corre-spond with your network settings, between 1 and 11 (in North America).All points in your wireless network must use the same channel in orderto function correctly. All points in your wireless network must use thesame channel in order to function correctly.Figure 5-6Note: The passphrase function doesn’t work when mixing othermanufacturers’ products into your wireless network. Linksys prod-ucts should always be used for optimum functionality. If usinganother company’s wireless product, set the WEP key manually.Note:WEP encryption should be used when communicating over awireless network. Wireless transmissions are unprotected and WEPencryption helps to make your wireless network safer to use.Note:Cisco-Linksys declares that WAP54G v2 (FCC ID: Q87-WAP54GV2) is limited in CH1-CH11 by specifiedfirmware controlled in USA.
1312Wireless-G Access Point9. The second Security Settings screen, shown in Figure 5-8, shows the WEPkey. If you entered a passphrase, then the Key 1 field will display the auto-matically generated WEP key. If you did not enter a passphrase, then entera WEP key in the Key 1 field. Each point in your wireless network must usethe same WEP key for the network to function properly. Click the Next but-ton to continue or Back to return to the previous page.• Key 1. WEP keys enable you to create an encryption scheme for wire-less networks. If the WEP key hasn’t been automatically generated, thenmanually enter a set of values. (Do not leave the field blank, and do notenter all zeroes, because they are not valid key values.) If you are using64-bit WEP encryption, then each key must consist of exactly 10 hexa-decimal characters in length. If you are using 128-bit WEP encryption,then each key must consist of exactly 26 hexadecimal characters inlength. Valid hexadecimal characters are “0”-“9” and “A”-“F”.Figure 5-810. The next screen (Figure 5-9) will allow you to review your settings. If thesettings are correct, click the Ye s button to save them. Click the No buttonto exit the Setup Wizard and not save the settings.11. At this point, the configuration performed with the Setup Wizard is com-plete, as shown in Figure 5-10. To configure any other access points in yournetwork, you can run this Setup Wizard again. Click the Exit button to exitthe Setup Wizard.The installation and configuration of the Access Point is complete. Formore advanced configuration, proceed to Chapter 5: Configuring theWireless-G Access Point.Figure 5-10Figure 5-9Note: WEP encryption should be used when communicating over awireless network. Wireless transmissions are unprotected and WEPencryption helps to make your wireless network safer to use.
Wireless-G Access Point1514LAN• MAC Address. The MAC Address of the LAN (Local Area Network)interface is displayed here.• Configuration Type. Select Static IP Address if your ISP provided you withthe IP Address, Subnet Mask, and default Gateway address or SelectAutomatic Configuration - DHCP if your ISP assigns IP addresses viaDHCP.• IP Address. The IP address must be unique to your network. We suggestyou use the default IP address of 192.168.1.245. This is a private IP address,so there is no need to purchase a separate IP address from your serviceprovider. Verify the address and click the Apply button to save your changes.• Subnet Mask. The Access Point’s Subnet Mask (or IP Mask) must be thesame as your Ethernet network. Verify this is correct and click the Applybutton to set it. • Gateway. If you have assigned a static IP address to the Access Point, thenenter the IP address of your network’s Gateway, such as a router, in the Gatewayfield. If your network does not have a Gateway, then leave this field blank.Figure 6-2Chapter 6: Configuring theWireless-G Access PointThe Access Point has been designed to be functional right out of the box, withthe default settings in the Setup Wizard. However, if you’d like to change thesesettings, the Access Point can be configured through your web browser with theWeb-Based Utility. This chapter explains how to configure the Access Point inthis manner.Open your web browser and typethe IP Address you entered in theSetup Wizard (the default IPaddress is 192.168.1.245). Pressthe Enter key and the followingscreen, shown in Figure 6-1, willappear. Leave the User Namefield blank. The first time youopen the Web-based Utility, usethe default password admin. Youcan set a new password on thePassword screen shown in Figure6-5.The first screen that appears, shown in Figure 6-2, is the Setup tab. This allowsyou to change the Access Point’s general settings. Change these settings asdescribed here, and click the Apply button to apply your changes or Cancel tocancel your changes. If you require online help, click the Help button.• Firmware Version. This displays the current version of the Access Point’sfirmware. Firmware should only be upgraded if you experience problemswith the Access Point and can be upgraded from the Help tab.• AP Name. You may assign any name to the Access Point. Unique, memo-rable names are helpful, especially if you are employing multiple accesspoints on the same network. Verify this is the name you wish to use andclick the Apply button to set it.Figure 6-1The Setup TabNote: The Access Point is designed to function properly afterusing the Setup Wizard. This chapter is provided solely for thosewho wish to perform more advanced configuration or monitoring.
Wireless-G Access Point1716Wireless• MAC Address. The MAC Address of the wireless (2.4 GHz, Draft802.11g) interface is displayed here.• Mode. Select Mixed and both Wireless-G and Wireless-B computers will beallowed on the network, but the speed will be reduced. Select G-Only formaximum speed, but no Wireless-B users will be allowed on the network.Select B-Only mode for Wireless-B speed.• SSID. The SSID is the unique name shared among all points in a wirelessnetwork. The SSID must be identical for all points in the wireless network.It is case-sensitive and must not exceed 32 alphanumeric characters, whichmay be any keyboard character. Make sure this setting is the same for alldevices in your wireless network. For added security, Linksys recommendsthat you change the SSID from the default linksys to a unique name.• SSID Broadcast. Allows the SSID to be broadcast on your network. You maywant to enable this function while configuring your network, but make surethat you disable it when you are finished. With this enabled, someone couldeasily obtain the SSID information with site survey software and gain unau-thorized access to your network. Click Enable to broadcast. Click Disable toincrease network security and prevent the SSID from being seen on networkedPCs.• Channel. Select the appropriate channel from the list provided to corre-spond with your network settings, between 1 and 11 (in North America). Alldevices in your wireless network must use the same channel in order tofunction correctly.• Wireless Security. The Wireless Security is set to Disable by default. Toenable Wireless Security, click the Enable radio button, and then click theEdit Security Settings button to configure the WEP settings.SETTING WIRELESS SECURITY ENCRYPTION:If the Disable radio button isselected and you click the EditSecurity Settings button, then thescreen shown in Figure 6-3 willappear. Click the OK button toenable Security encryption orCancel to return to the Setupscreen.Set Wireless Security through the Web-based Utility by clicking the EditSecurity Settings button on the Setup screen as shown in Figure 6-2. Figure 6-3This will open the Security Settings screen, Figure 6-4. From this screen, you canselect from four types of security settings for your network: Wi-Fi ProtectedAccess (WPA) Pre-Shared key, WPA Remote Access Dial In User Service(RADIUS), RADIUS, or Wire Equivalence Protection (WEP).• Security Mode. Select Wi-Fi Protected Access (WPA) Pre-Shared key,WPA Remote Access Dial In User Service (RADIUS), RADIUS, or WireEquivalence Protection (WEP) from the drop-down menu. • Pre-Shared Key. There are two encryption options for WPA Pre-SharedKey, TKIP and AES. TKIP stands for Temporal Key Integrity Protocol.TKIP utilizes a stronger encrytption method and incorporates MessageIntegrity Code (MIC) to provide protection against hackers. AES stands forAdvanced Encryption System, which utilizes a symmetric 128-Bit blockdata encryption. To use WPA Pre-Shared Key, enter a password in the WPAShared Key field between 8 and 63 characters long. You may also enter aGroup Key Renewal Interval time between 0 and 99,999 seconds. • WPA RADIUS. WPA RADIUS uses an external RADIUS server to per-form user authentication. To use WPA RADIUS, enter the IP address of theRADIUS server, the RADIUS Port (default is 1812) and the shared secretfrom the RADIUS server.• RADIUS. RADIUS utilizes either a RADIUS server for authentication orWEP for data encryption. To utilize RADIUS, enter the IP address of theRADIUS server and its shared secret. Select the desired encryption bit (64or 128) for WEP and enter either a passphrase or a manual WEP key.• WEP encryption. From the pull-down menu, select 64 bits 10 hex digitsor 128-bit 26 hex digits for WEP encryption. Higher encryption levelsoffer higher levels of security, but may decrease the network speed. Selectthe desired encryption bit (64 or 128) for WEP and enter either a passphraseor a manual WEP key.Click the Apply button to apply your changes, or click Cancel to cancel yourmost recent change, or click the Help button for more information.Figure 6-4
Wireless-G Access PointSETTING THE AP MODE:The Access Point offers two modes of operation: Access Point and WirelessBridge. For all bridging modes, make sure the channel, SSID, and WEP key set-tings are the same.• Access Point - The operational mode is set to Access Point by default. Thisconnects your wireless PCs to a wired network. In most cases, no change isnecessary.• Wireless Bridge - If you are trying to make a wireless connection betweentwo or more wired networks, as shown in Figure 6-7, select WirelessBridge. This mode connects two physically separated wired networks withtwo access points. To configure a Wireless Bridge environment, click Wireless Bridge andenter the LAN MAC address of the remote access point in the RemoteWireless Bridge’s LAN MAC Addresses field. The remote access point alsoneeds to be set up as a Wireless Bridge.Note: All devices on each wired network must be connected through a hubor switch. Click the Apply button to apply your changes or Cancel to cancel yourchanges. If you require online help, click the Help button.1918The Password tab, shown in Figure 6-5, allows you to change the Access Point’spassword and restore factory defaults.• AP Password. Changing the password for the Access Point is as easy astyping the password into the AP Password field. Then, type it again into thesecond field to confirm.• Restore Factory Defaults. To restore the Access Point’s factory default set-tings, click the Ye s button beside Restore Factory Defaults. You will loseany settings you have saved.• Backup/Restore Setting. To back up your Access Point configuration,click the Backup button. To restore your Access Point configuration, clickthe Restore button.Click the Apply button to apply your changes or Cancel to cancel yourchanges. If you require online help, click the Help button.The Password TabImportant: Restoring the Access Point’s factory defaults will eraseall of your settings (WEP Encryption, Wireless and LAN settings,etc.), replacing them with the factory defaults. Do not reset theAccess Point if you want to retain these settingsFigure 6-5Figure 6-6The AP Mode Tab
Wireless-G Access Point21The Status tab, shown in Figure 6-8, will display current information on theAccess Point, its settings, and its performance.• Firmware Version. The current version of the Access Point’s firmware isdisplayed. Firmware should only be upgraded from the Help tab if youexperience problems with the Access Point.• AP Name. This displays the name you assigned to the Access Point.Figure 6-8The Status Tab20Note: In Wireless Bridge mode, the Access Point can ONLY beaccessed by another access point that is in Wireless Bridge mode. Inorder for your other wireless devices to access the Access Point, youmust reset it to Access Point mode. The two modes are mutuallyexclusive. Figure 6-7
Wireless-G Access Point2322To view a log of the Access Point’s activity, select the Log tab, shown in Figure6-9.Log. To enable permanent logging activity, select Enable from the drop-downmenu beside Log. The default setting for this function is Disable.If you have chosen to monitor the Access Point’s traffic, then you can designatea PC that will receive permanent log files periodically. In the Send Log to field,enter the IP address of this PC. To view these permanent logs, you must useLogviewer software, which can be downloaded free of charge fromwww.linksys.com.To see a temporary log of the Access Point’s most recent activities, click theView Log button.Click the Apply button to apply your changes or Cancel to cancel yourchanges. If you require online help, click the Help button.The Log TabFigure 6-9LAN • MAC Address. The MAC Address of the LAN interface is displayed here.• Configuration Type. This displays how the Access Point is assigned an IPaddress, either Automatic Configuration - DHCP, if assigned by DHCPserver, or Static IP Address and its IP Address, Subnet Mask, and DefaultGateway address, if assigned by Static IP Address server. • IP Address. This IP address is the unique IP address of the Access Point.• Subnet Mask. The Access Point’s Subnet Mask (also known as an IPMask), matches the Subnet Mask of your Ethernet network.Wireless• MAC Address. The MAC Address of the LAN interface is displayed here.• SSID. The unique name shared among all points in your wireless networkis displayed here.• Mode. The Access Point’s mode is displayed here.• Channel. The wireless channel shared by all wireless devices connected tothis Access Point is displayed here.• Encryption Function. The encryption method you chose in the SetupWizard or changed from the Setup tab of this Web-based Utility is displayedhere.• Send and Receive. The Send and Receive fields display the number of suc-cessful or dropped packets that have been sent or received. Some packetloss is normal in wireless networking.
Wireless-G Access Point2524To upgrade the Access Point’s firmware:1. Download the firmware upgrade file from the Linksys website.2. Extract the firmware upgrade file.3. Click the Upgrade Firmware button on the Help screen.4. Enter the location of the firmware upgrade file in the File Path field, orclick the Browse button to find the firmware upgrade file.5. Double-click the firmware upgrade file.6. Click the Upgrade button, and follow the on-screen instructions.Click the Cancel button to cancel the firmware upgrade.To access the Filters tab, first click the Advanced tab. The Filters tab, shownin Figure 6-12, allows you to control which computers may or may not com-municate with the Access Point—depending on their MAC addresses.To enable filtering of computers by their MAC Addresses, select Enable fromthe drop-down menu. To disable this feature, select the default Disable.Next, determine if the Access Point will Prevent or Permit access to the PCsyou will specify. If you want to block specific PCs from communicating withwith the Access Point, click the radio button next to Prevent PCs listed belowfrom accessing the wireless network. If you want to allow specific PCs fromcommunicating with the Access Point, click the radio button next to PermitPCs listed below to access the wireless network.The Filter TabFor help on the various tabs in this Web-based Utility, along with upgrading theAccess Point’s firmware and viewing this User Guide, click the Help tab,shown in Figure 6-10.The help files for the various tabs in this Web-based Utility are listed by tabname on the lefthand side of the screen.Click the Linksys Website link to connect to the Linksys home page forKnowledgebase help files and information about other Linksys products, pro-vided you have an active Internet connection.For an Online manual in PDF format, click that text link. The User Guide willappear in Adobe pdf format. If you do not have the Adobe PDF Reader installedon your computer, click the Adobe Website link or go to the Setup Wizard CD-ROM to download this software. (To access the Adobe website, you will need anactive Internet connection.) To download from the CD-ROM, click the Start but-ton and select Run. Type D:\Acrobat (if “D” is the letter of your CD-ROM drive).New firmware versions are posted at www.linksys.com and can be downloadedfor free. If the Access Point is not experiencing difficulties, then there is noneed to download a more recent firmware version, unless that version has anew feature that you want to use. Loading new firmware does not alwaysenhance the speed or quality of your Internet connection.The Help TabFigure 6-10Figure 6-11Note: When you upgrade the Access Point’s firmware, you maylose the Access Point’s current configuration settings.
Wireless-G Access Point2726Before making any changes to the Advanced Wireless tab, shown in Figure 6-13, please check your wireless settings on your other systems, because thesechanges will alter the effectiveness of the Access Point. In most cases, thesewireless settings do not need to be changed.• Authentication Type. The default is set to Auto, where it auto-detects forShared Key or Open System. Shared Key is when both the sender and therecipient share a WEP key for authentication. Open Key is when the senderand the recipient do not share a WEP key for authentication. All points onyour network must use the same authentication type. • Transmission Rates. The default setting is Auto. The range is from 1 to54Mbps. The rate of data transmission should be set depending on the speedof your wireless network. You can select from a range of transmissionspeeds, or you can keep the default setting, Auto, to have the Access Pointautomatically use the fastest possible data rate and enable the Auto-Fallbackfeature. Auto-Fallback will negotiate the best possible connection speedbetween the Access Point and a wireless client. • CTS Protection Mode. The default value is set to Disabled. When set toAuto, a protection mechanism will ensure that your Wireless-B devices willconnect to the Access Point when many Wireless-G devices are present.However, performance of your Wireless-G devices may be decreased.Figure 6-13Above the MAC Address fields, there is a pull-down menu. This drop-downmenu is for selecting the number of computers on your wireless network. Forcomputers one through twenty on your wireless network, 1~20 is selected bydefault. If you have more than twenty computers on your wireless network, usethis pull-down menu to select 21~40.Then, type the MAC Address(es) you wish to filter in the MAC Address fields.Do not use colons when entering the digits. Use a xxxxxxxxxxxx format withthe x’s representing the actual characters of the MAC address. If you want toclear the MAC addresses you entered, click the Clear button.When you’ve completed making any changes on this tab, click the Apply but-ton to save those changes or Cancel to cancel your changes. For more infor-mation on this tab, click the Help button.Figure 6-12The Advanced Wireless Tab
Wireless-G Access Point2928The SNMP screen allows you to customize the Simple Network ManagementProtocol (SNMP) settings. SNMP is a popular network monitoring and man-agement protocol. The Identification settings let you designate the Contact, Device Name, andLocation information for the Access Point. The SNMP Community settingsallow names to be assigned to any SNMP communities that have been set up inthe network. You can define two different SNMP communities, with the defaultnames being Public and Private.• SNMP. To enable the SNMP support feature, select Enable. Otherwise,select Disable.• Identification. In the Contact field, enter contact information for theAccess Point. In the Device Name field, enter the name of the Access Point.In the Location field, specify the area or location where the Access Pointresides.• SNMP Community. You may change the name from its default, Public.Enter a new name in the Public field. Then configure the community'saccess as either Read-Only or Read-Write.You may change the name fromits default, Private. Enter a new name in the Private field. Then configurethe community's access as either Read-Only or Read-Write.When you’ve completed making any changes on this tab, click the Apply but-ton to save those changes or Cancel to cancel your changes. For more infor-mation on this tab, you can click the Help button.• Basic Rate. The default value is set to Default. Depending on the wirelessmode you have selected, a default set of supported data rates will be select-ed. The default setting will ensure maximum compatibility with all devices.You may also choose to enable all data rates by selecting ALL. For com-patibility with older Wireless-B devices, select 1-2Mbps. • Antenna Selection. The default value is set to Diversity. In Diversity mode,both antennas will be enabled. Otherwise, you can set to have wirelesstransmission operate only on the Left or Right antenna. • Beacon Interval. This value indicates the frequency interval of the beacon.The default value is 100. Enter a value between 20 and 1000 milliseconds.The Beacon Interval value indicates the frequency interval of the beacon. Abeacon is a packet broadcast by the Access Point to synchronize the wire-less network. • RTS Threshold. This value should remain at its default setting of 2346.Should you encounter inconsistent data flow, only minor reductions are rec-ommended.• Fragmentation Threshold. This value specifies the maximum size for apacket before data is fragmented into multiple packets. It should remain atits default setting of 2346. A smaller setting means smaller packets, whichwill create more packets for each transmission. Only minor reductions ofthis value are recommended.• DTIM Interval. The default value is 3. This value, between 1 and 255 mil-liseconds, indicates the interval of the Delivery Traffic Indication Message(DTIM). A DTIM field is a countdown field informing clients of the nextwindow for listening to broadcast and multicast messages. When the AccessPoint has buffered broadcast or multicast messages for associated clients, itsends the next DTIM with a DTIM Interval value. Access Point Clientshear the beacons and awaken to receive the broadcast and multicast mes-sages. When you’ve completed making any changes on this tab, click the Apply but-ton to save those changes or Cancel to cancel your changes. For more infor-mation on this tab, you can click the Help button.The SNMP TabFigure 6-14
Wireless-G Access PointWhat is Roaming?Roaming is the ability of a portable computer user to communicate continu-ously while moving freely throughout an area greater than that covered by asingle Access Point. Before using the roaming function, the workstation mustmake sure that it is the same channel number as the Access Point of the dedi-cated coverage area. To achieve true seamless connectivity, the wireless LAN must incorporate anumber of different functions. Each node and Access Point, for example, mustalways acknowledge receipt of each message. Each node must maintain contactwith the wireless network even when not actually transmitting data. Achievingthese functions simultaneously requires a dynamic RF networking technologythat links Access Points and nodes. In such a system, the user’s end node under-takes a search for the best possible access to the system. First, it evaluates suchfactors as signal strength and quality, as well as the message load currentlybeing carried by each Access Point and the distance of each Access Point to thewired backbone. Based on that information, the node next selects the rightAccess Point and registers its address. Communications between end node andhost computer can then be transmitted up and down the backbone.As the user moves on, the end node’s RF transmitter regularly checks the sys-tem to determine whether it is in touch with the original Access Point orwhether it should seek a new one. When a node no longer receives acknowl-edgment from its original Access Point, it undertakes a new search. Upon find-ing a new Access Point, it then re-registers, and the communication processcontinues.What is BSS ID?A specific Ad-hoc LAN is called a Basic Service Set (BSS). Computers in aBSS must be configured with the same BSS ID.What is ESSID?An Infrastructure configuration could also support roaming capability formobile workers. More than one BSS can be configured as an Extended ServiceSet (ESS). Users within an ESS could roam freely between BSSs while main-taining a continuous connection to the wireless network stations and AccessPoints.What is ISM band?The FCC and their counterparts outside of the U.S. have set aside bandwidthfor unlicensed use in the ISM (Industrial, Scientific and Medical) band.Spectrum in the vicinity of 2.4 GHz, in particular, is being made available31Appendix A: TroubleshootingThis chapter provides solutions to problems usually encountered during theinstallation and operation of the Access Point. Read the description below tosolve your problems. If you can’t find an answer here, check the Linksys web-site at www.linksys.com.Can the Access Point act as my DHCP Server?No. The Access Point is nothing more than a wireless hub, and as such cannotbe configured to handle DHCP capabilities.Can I run an application from a remote computer over the wireless net-work?This will depend on whether or not the application is designed to be used overa network. Consult the application’s user guide to determine if it supports oper-ation over a network.Can I play multiplayer games with other users of the wireless network?Yes, as long as the game supports multiple players over a LAN (local area net-work). Refer to the game’s user guide for more information.What IEEE 802.11b features are supported?The product supports the following IEEE 802.11 functions: • CSMA/CA plus Acknowledge protocol • Multi-Channel Roaming • Automatic Rate Selection • RTS/CTS feature • Fragmentation • Power Management What is Ad-hoc?An Ad-hoc wireless LAN is a group of computers, each with a WLAN adapter,connected as an independent wireless LAN. An Ad-hoc wireless LAN is appli-cable at a departmental scale for a branch or SOHO operation.What is Infrastructure?An integrated wireless and wired LAN is called an Infrastructure configura-tion. Infrastructure is applicable to enterprise scale for wireless access to a cen-tral database, or wireless application for mobile workers.30Frequently Asked Questions
Wireless-G Access PointWhat is WEP?WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40-bitshared-key algorithm, as described in the IEEE 802.11 standard. What is a MAC Address?The Media Access Control (MAC) address is a unique number assigned by themanufacturer to any Ethernet networking device, such as a network adapter,that allows the network to identify it at the hardware level. For all practical pur-poses, this number is usually permanent. Unlike IP addresses, which canchange every time a computer logs on to the network, the MAC address of adevice stays the same, making it a valuable identifier for the network.How do I avoid interference?Using multiple Access Points on the same channel and in close proximity toone another will generate interference. When employing multiple AccessPoints, be sure to operate each one on a different channel (frequency).How do I reset the Access Point?Press the Reset button on the back of the Access Point for about ten seconds.This will reset the unit to its default settings.How do I resolve issues with signal loss?There is no way to know the exact range of your wireless network without test-ing. Every obstacle placed between an Access Point and wireless PC will cre-ate signal loss. Leaded glass, metal, concrete floors, water and walls will inhib-it the signal and reduce range. Start with your Access Point and your wirelessPC in the same room and move it away in small increments to determine themaximum range in your environment. You may also try using different channels, as this may eliminate interferenceaffecting only one channel. Also, due to FCC regulations, more power may betransmitted, using 802.11a, on channels 52, 56, 60 and 64, than on the lowerchannels. Lastly, check the Advanced tab of the Web-Based Utility and makesure that FULL is selected in the Transmission Rate field.Does the Access Point function as a firewall?No. The Access Point is only a bridge from wired Ethernet to wireless clients. I have excellent signal strength, but I cannot see my network.WEP is probably enabled on the Access Point, but not on your wireless adapter(or vice versa). Verify that the same WEP Keys and levels (64 or 128 ) arebeing used on all nodes on your wireless network. 33worldwide. This presents a truly revolutionary opportunity to place convenienthigh speed wireless capabilities in the hands of users around the globe. What is Spread Spectrum?Spread Spectrum technology is a wideband radio frequency technique devel-oped by the military for use in reliable, secure, mission-critical communica-tions systems. It is designed to trade off bandwidth efficiency for reliability,integrity, and security. In other words, more bandwidth is consumed than in thecase of narrowband transmission, but the trade-off produces a signal that is, ineffect, louder and thus easier to detect, provided that the receiver knows theparameters of the spread-spectrum signal being broadcast. If a receiver is nottuned to the right frequency, a spread-spectrum signal looks like backgroundnoise. There are two main alternatives, Direct Sequence Spread Spectrum(DSSS) and Frequency Hopping Spread Spectrum (FHSS).What is DSSS? What is FHSS? And what are their differences?Frequency Hopping Spread Spectrum (FHSS) uses a narrowband carrier thatchanges frequency in a pattern that is known to both transmitter and receiver.Properly synchronized, the net effect is to maintain a single logical channel. Toan unintended receiver, FHSS appears to be short-duration impulse noise.Direct Sequence Spread Spectrum (DSSS) generates a redundant bit pattern foreach bit to be transmitted. This bit pattern is called a chip (or chipping code).The longer the chip, the greater the probability that the original data can berecovered. Even if one or more bits in the chip are damaged during transmis-sion, statistical techniques embedded in the radio can recover the original datawithout the need for retransmission. To an unintended receiver, DSSS appearsas low power wideband noise and is rejected (ignored) by most narrowbandreceivers. Would the information be intercepted while transmitting on air?WLAN features two-fold protection in security. On the hardware side, as withDirect Sequence Spread Spectrum technology, it has the inherent security fea-ture of scrambling. On the software side, the WLAN series offers the encryp-tion function (WEP) to enhance security and access control. Users can set it updepending upon their needs.Can Instant WirelessTM products support file and printer sharing?Instant WirelessTM products perform the same function as LAN products.Therefore, Instant WirelessTM products can work with Netware, WindowsNT/2000, or other LAN operating systems to support printer or file sharing.32
Wireless-G Access PointAppendix B: Setting Up the TCP/IP andIPX ProtocolsBefore a computer can communicate with the Access Point, it must be config-ured with the TCP/IP protocol. If you know how to set up TCP/IP on your com-puters, do so now. Otherwise, use the guidelines below to help get TCP/IPinstalled on all of the computers that need to communicate with the AccessPoint. If you are unable to successfully install TCP/IP on one or more comput-ers after following the directions, contact the manufacturer of your computers'network operating system for further assistance. Check with your networkadministrator for your TCP/IP settings. The directions below provide general guidelines for coming up with IP address-es and subnet masks. Check with your network administrator to see if you needto use specific IP addresses or DHCP settings.First, each computer on the network will require an IP address, which is a seriesof numbers, separated by periods, identifying the PC on the network. To makethings simple, you should use the following numbering scheme: 192.168.1.X In this example, X is a unique, arbitrarily assigned number from 1 to 254. Eachcomputer must have its own unique X number. Note: Never use 0, 250 or 255for X. These numbers are reserved by TCP/IP for other uses. For example, if you have three computers, you could number them as follows: 192.168.1.17192.168.1.44192.168.1.126In this case, 17, 44, and 126 are arbitrary numbers between 1 and 254. Each computer will also require a subnet mask, which is a numerical “filter”that tells a computer what kinds of TCP/IP data packets to accept. If you’re notsure which mask to use, the following mask is recommended:255.255.255.0 35What is the maximum number of users the Access Point facilitates?No more than 65, but this depends on the volume of data and may be less ifmany users create a large amount of network traffic. How many channels/frequencies are available with the Access Point?Using 802.11b or draft 802.11g, there are eleven available channels, rangingfrom 1 to 11. 34Setting Up TCP/IP in Windows
Wireless-G Access Point1. Click the Start button, select Settings, and open the Control Panel. Insidethe Control Panel, double-click the Network icon.2. When the Network window appears, click the Protocols tab. Then, clickthe Add button.3. Find the TCP/IP protocol in the Select Network Protocol field. Click itonce and then click the OK button.4. When asked if you want to use DHCP, choose No.5. If asked to supply your Windows NT CD, do so. NT will copy the neces-sary files to your system. You may have to switch between the AccessPoint’s Setup CD and the NT CD.6. When TCP/IP appears in the Network Protocols window, click theBindings tab. Windows will store your new bindings. 7. Click the Protocols tab. Then, select TCP/IP.8. Click the Properties button. Select the type of network adapter you havefrom the Adapters box and select Specify an IP Address. 9. Enter the computer’s IP Address and Subnet Mask. Check with your net-work administrator for your settings.10. Enter your Default Gateway if you have one.11. When you finish, click the OK button. If NT asks about WINS, ignore it. 12. When the Network window reappears, click the Close button. Restart yourcomputer when prompted. TCP/IP has now been successfully installed. 1. Click the Start button, select Settings, and open the Control Panel. Insidethe Control Panel, double-click the Network icon.37The following instructions are provided as examples for reference only. Forcomplete instructions on installing and troubleshooting TCP/IP and IPX, con-sult your Windows operating system documentation.1. Click the Start button, select Settings, and open the Control Panel. Insidethe Control Panel, double-click the Network icon.2. If the TCP/IP Protocol is listed for your network adapter, go to step five.Otherwise, click the Add button.3. When the Component Type window appears, select Protocol and click theAdd button.4. Select Microsoft in the Manufacturers list and choose TCP/IP in theNetwork Protocols list. Then, click the OK button.5. When the Network window reappears, click TCP/IP. Then, click theProperties button.6. Select Specify an IP Address. 7. Enter an IP Address for the computer, along with a Subnet Mask. Click theOK button. If you do not have these values, consult your network adminis-trator.8. When the Network window reappears, click the OK button. Restart yourmachine. TCP/IP has now been successfully installed.1. Click the Start button, select Settings, and open the Control Panel. Insidethe Control Panel, double-click the Network icon.2. If the TCP/IP Protocol is listed for your network adapter, go to step four.Otherwise, click the Add button.3. When the Component Type window appears, select Protocol and click theAdd button.4. Select Microsoft in the Manufacturers list and choose IPX/SPX protocolin the Network Protocols list. Then, click the OK button.36TCP/IP Setup for Windows NT 4.0NNoottee::a Default Gateway is not required. Check with your network administrator.IPX Setup for Windows NT 4.0TCP/IP Setup for Windows 98 and MillenniumIPX Setup for Windows 98 and Millennium
Wireless-G Access Point4. Select NWLink IPX/SPX/NetBIOS Compatible Transport Protocolfrom the list and click the OK button. 5. When the Network window reappears, click the OK button. Restart yourcomputer. NWLink IPX/SPX/NetBIOS Compatible Transport Protocol hasnow been successfully installed.1. Click the Start button and open the Control Panel.2. Double click the Network and Internet Connections icon.3. Double click the Network Connections icon.4. Right click the Local Area Connection icon and select Properties.5. If the TCP/IP Protocol is listed for your network adapter, go to step five.Otherwise, click the Install button.6. When the Component Type window appears, select Protocol, and click theAdd button.7. Select Internet Protocol (TCP/IP) from the list and click the OK button.8. When the Local Area Connection Properties window reappears, selectTCP/IP, and click the Properties button.9. Select Use the following IP Address. 10. Enter an IP Address for the computer, along with a Subnet Mask andDefault Gateway. Then, click the OK button. If you do not have these val-ues, consult your network administrator.11. When the Local Area Connection Properties window reappears, click theOK button. TCP/IP has now been successfully installed..392. When the Network window appears, click the Protocols tab. Then, clickthe Add button.3. Find the IPX/SPX protocol in the Select Network Protocol field. Click itonce and click the OK button.1. At the Windows 2000 desktop, right click My Network Places and selectProperties. Then, right click Local Area Connection. Choose Properties.2. If the TCP/IP Protocol is listed for your network adapter, go to step five.Otherwise, click the Install button.3. When the Component Type window appears, select Protocol, and click theAdd button.4. Select Internet Protocol (TCP/IP) from the list and click the OK button.5. When the Local Area Connection Properties window reappears, selectTCP/IP, and click the Properties button.6. Select Use the following IP Address. 7. Enter an IP Address for the computer, along with a Subnet Mask andDefault Gateway. Then, click the OK button. If you do not have these val-ues, consult your network administrator.8. When the Local Area Connection Properties window reappears, click theOK button. TCP/IP has now been successfully installed.1. At the Windows 2000 desktop, right click My Network Places. Then rightclick Local Area Connection. Choose Properties.2. If the NWLink IPX/SPX/NetBIOS Compatible Transport Protocol is listedfor your network adapter, click the Cancel button. Otherwise, click theInstall button.3. When the Component Type window appears, select Protocol and click theInstall button.38TCP/IP Setup for Windows XPTCP/IP Setup for Windows 2000IPX Setup for Windows 2000
Wireless-G Access Point4140Browser - A browser is an application program that provides a way to look atand interact with all the information on the World Wide Web or PC. The word"browser" seems to have originated prior to the Web as a generic term for userinterfaces that let you browse text files online. BSS (Basic Service Set) - A group of wireless Network PC Card users and anAccess Point.Buffer - A buffer is a shared or assigned memory area used by hardwaredevices or program processes that operate at different speeds or with differentsets of priorities. The buffer allows each device or process to operate withoutbeing held up by the other. In order for a buffer to be effective, the size of thebuffer and the algorithms for moving data into and out of the buffer need to beconsidered by the buffer designer. Like a cache, a buffer is a "midpoint holdingplace" but exists not so much to accelerate the speed of an activity as to sup-port the coordination of separate activities. CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) - In localarea networking, this is the CSMA technique that combines slotted time-divi-sion multiplexing with carrier sense multiple access/collision detection(CSMA/CD) to avoid having collisions occur a second time. This works best ifthe time allocated is short compared to packet length and if the number of sit-uations is small.CSMA/CD (Carrier Sense Multiple Access/Collision Detection) - The LANaccess method used in Ethernet. When a device wants to gain access to the net-work, it checks to see if the network is quiet (senses the carrier). If it is not, itwaits a random amount of time before retrying. If the network is quiet and twodevices access the line at exactly the same time, their signals collide. When thecollision is detected, they both back off and each wait a random amount of timebefore retrying. CTS (Clear To Send) - An RS-232 signal sent from the receiving station to thetransmitting station that indicates it is ready to accept data.Database - A database is a collection of data that is organized so that its con-tents can easily be accessed, managed, and updated. DHCP (Dynamic Host Configuration Protocol) - A protocol that lets networkadministrators manage centrally and automate the assignment of InternetProtocol (IP) addresses in an organization's network. Using the Internet's set ofprotocol (TCP/IP), each machine that can connect to the Internet needs aAppendix C: Glossary802.11b - One of the IEEE standards for wireless networking hardware.Products that adhere to a specific IEEE standard will work with each other,even if they are manufactured by different companies. The 802.11b standardspecifies a maximum data transfer rate of 11Mbps, an operating frequency of2.4GHz, and WEP encryption for security. 802.11b networks are also referredto as Wi-Fi networks.802.11g - A proposed, but as yet unratified extension of the IEEE 802.11 stan-dard for wireless networking hardware. The draft 802.11g specifications usedby Linksys specify a maximum data transfer rate of 54Mbps using OFDMmodulation, an operating frequency of 2.4GHz, backward compatibility withIEEE 802.11b devices and WEP encryption for security.Adapter - Printed circuit board that plugs into a PC to add to capabilities orconnectivity to a PC. In a networked environment, a network interface card isthe typical adapter that allows the PC or server to connect to the intranet and/orInternet.Ad-hoc Network - An ad-hoc network is a wireless network or other small net-work in which some of the network devices are part of the network only for theduration of a communications session while in some close proximity to the restof the network.Backbone - The part of a network that connects most of the systems and net-works together and handles the most data.Bandwidth - The transmission capacity of a given facility, in terms of howmuch data the facility can transmit in a fixed amount of time; expressed in bitsper second (bps).Beacon Interval - A beacon is a packet broadcast by the Access Point to keepthe network synchronized. A beacon includes the wireless LAN service area,the AP address, the Broadcast destination addresses, a time stamp, DeliveryTraffic Indicator Maps, and the Traffic Indicator Message (TIM).Bit - A binary digit. The value - 0 or 1-used in the binary numbering system.Also, the smallest form of data.
Wireless-G Access Point4342Dynamic IP Address - An IP address that is automatically assigned to a clientstation in a TCP/IP network, typically by a DHCP server. Network devices thatserve multiple users, such as servers and printers, are usually assigned static IPaddresses. Encryption - A security method that applies a specific algorithm to data inorder to alter the data's appearance and prevent other devices from reading theinformation. ESS - More than one BSS in a network.Ethernet - IEEE standard network protocol that specifies how data is placedon and retrieved from a common transmission medium. Has a transfer rate of10 Mbps. Forms the underlying transport vehicle used by several upper-levelprotocols, including TCP/IP and XNS.FHSS (Frequency Hopping Spread Spectrum) - FHSS continuously changesthe center frequency of a conventional carrier several times per second accord-ing to a pseudo-random set of channels, while chirp spread spectrum changesthe carrier frequency. Because a fixed frequency is not used, illegal monitoringof spread spectrum signals is extremely difficult, if not downright impossibledepending on the particular method.Firmware - Code that is written onto read-only memory (ROM) or program-mable read-only memory (PROM). Once firmware has been written onto theROM or PROM, it is retained even when the device is turned off. Fragmentation - Breaking a packet into smaller units when transmitting overa network medium that cannot support the original size of the packet. Gateway - A device that interconnects networks with different, incompatiblecommunications protocols. Hardware - Hardware is the physical aspect of computers, telecommunica-tions, and other information technology devices. The term arose as a way to dis-tinguish the "box" and the electronic circuitry and components of a computerfrom the program you put in it to make it do things. The program came to beknown as the software.Hub - The device that serves as the central location for attaching wires fromworkstations. Can be passive, where there is no amplification of the signals; oractive, where the hubs are used like repeaters to provide an extension of thecable that connects to a workstation.unique IP address. When an organization sets up its computer users with a con-nection to the Internet, an IP address must be assigned to each machine.Without DHCP, the IP address must be entered manually at each computer and,if computers move to another location in another part of the network, a new IPaddress must be entered. DHCP lets a network administrator supervise and dis-tribute IP addresses from a central point and automatically sends a new IPaddress when a computer is plugged into a different place in the network. DHCP uses the concept of a "lease" or amount of time that a given IP addresswill be valid for a computer. The lease time can vary depending on how long auser is likely to require the Internet connection at a particular location. It's espe-cially useful in education and other environments where users change fre-quently. Using very short leases, DHCP can dynamically reconfigure networksin which there are more computers than there are available IP addresses. DHCP supports static addresses for computers containing Web servers thatneed a permanent IP address. Download - To receive a file transmitted over a network. In a communicationssession, download means receive, upload means transmit. Driver - A workstation or server software module that provides an interfacebetween a device and the upper-layer protocol software running in the comput-er; it is designed for a specific device, and is installed during the initial instal-lation of a network-compatible client or server operating system.DSSS (Direct-Sequence Spread-Spectrum) - DSSS generates a redundant bitpattern for each bit to be transmitted. This bit pattern is called a chip (or chip-ping code). The longer the chip, the greater the probability that the original datacan be recovered. Even if one or more bits in the chip are damaged duringtransmission, statistical techniques embedded in the radio can recover the orig-inal data without -the need for retransmission. To an unintended receiver, DSSSappears as low power wideband noise and is rejected (ignored) by most nar-rowband receivers. DTIM (Delivery Traffic Indication Message) - A DTIM field is a countdownfield informing clients of the next window for listening to broadcast and mul-ticast messages. When the AP has buffered broadcast or multicast messages forassociated clients, it sends the next DTIM with a DTIM Interval value. APClients hear the beacons and awaken to receive the broadcast and multicastmessages.
Wireless-G Access PointMulticasting - Sending data to a group of nodes instead of a single destination.Network - A system that transmits any combination of voice, video and/or databetween users. Node - A network junction or connection point, typically a computer or workstation.OFDM - OFDM (Orthogonal Frequency Division Muliplexing) works bybreaking one high-speed data stream into a number of lower-speed datastreams, which are then transmitted in parallel. Each lower speed stream is usedto modulate a subcarrier. Essentially, this creates a multi-carrier transmissionby dividing a wide frequency band or channel into a number of narrower fre-quency bands or sub-channels.Packet - A unit of data routed between an origin and a destination in a network.Passphrase - Used much like a password, a passphrase simplifies the WEPencryption process by automatically generating the WEP encryption keys forLinksys products.PC Card - A credit-card sized removable module that contains memory, I/O,or a hard disk. Port - A pathway into and out of the computer or a network device such as aswitch or router. For example, the serial and parallel ports on a personal com-puter are external sockets for plugging in communications lines, modems andprinters. RJ-45 (Registered Jack-45) - A connector similar to a telephone connector thatholds up to eight wires, used for connecting Ethernet devices.Roaming - The ability to use a wireless device and be able to move from oneaccess point's range to another without losing the connection.Router - Protocol-dependent device that connects subnetworks together.Routers are useful in breaking down a very large network into smaller subnet-works; they introduce longer delays and typically have much lower throughputrates than bridges. RTS (Request To Send) - An RS-232 signal sent from the transmitting stationto the receiving station requesting permission to transmit. 45IEEE (The Institute of Electrical and Electronics Engineers) - The IEEEdescribes itself as "the world's largest technical professional society, promotingthe development and application of electrotechnology and allied sciences forthe benefit of humanity, the advancement of the profession, and the well-beingof our members." The IEEE fosters the development of standards that often become national andinternational standards. The organization publishes a number of journals, hasmany local chapters, and several large societies in special areas, such as theIEEE Computer Society.Infrastructure - An infrastructure network is a wireless network or other smallnetwork in which the wireless network devices are made a part of the networkthrough the Access Point which connects them to the rest of the network.IP Address - In the most widely installed level of the Internet Protocol (IP)today, an IP address is a 32-binary digit number that identifies each sender orreceiver of information that is sent in packet across the Internet. When yourequest an HTML page or send e-mail, the Internet Protocol part of TCP/IPincludes your IP address in the message (actually, in each of the packets if morethan one is required) and sends it to the IP address that is obtained by lookingup the domain name in the Uniform Resource Locator you requested or in thee-mail address you're sending a note to. At the other end, the recipient can seethe IP address of the Web page requestor or the e-mail sender and can respondby sending another message using the IP address it received. ISM band - The FCC and their counterparts outside of the U.S. have set asidebandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical)band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made avail-able worldwide. This presents a truly revolutionary opportunity to place con-venient high-speed wireless capabilities in the hands of users around the globe.LAN - A local area network (LAN) is a group of computers and associateddevices that share a common communications line and typically share theresources of a single processor or server within a small geographic area (forexample, within an office building). MAC (Media Access Control) Address - A unique number assigned by themanufacturer to any Ethernet networking device, such as a network adapter,that allows the network to identify it at the hardware level.Mbps (MegaBits Per Second) - One million bits per second; unit of measure-ment for data transmission.44
Wireless-G Access Pointunits of data (called packet) that a message is divided into for efficient routingthrough the Internet. TCP/IP (Transmission Control Protocol/Internet Protocol) - The basic com-munication language or protocol of the Internet. It can also be used as a com-munications protocol in a private network (either an intranet or an extranet).When you are set up with direct access to the Internet, your computer is pro-vided with a copy of the TCP/IP program just as every other computer that youmay send messages to or get information from also has a copy of TCP/IP.Throughput - The amount of data moved successfully from one place to anoth-er in a given time period.Topology - A network's topology is a logical characterization of how thedevices on the network are connected and the distances between them. Themost common network devices include hubs, switches, routers, and gateways.Most large networks contain several levels of interconnection, the most impor-tant of which include edge connections, backbone connections, and wide-areaconnections.Upgrade - To replace existing software or firmware with a newer version. Upload - To transmit a file over a network. In a communications session,upload means transmit, download means receive. UTP - Unshielded twisted pair is the most common kind of copper telephonewiring. Twisted pair is the ordinary copper wire that connects home and manybusiness computers to the telephone company. To reduce crosstalk or electro-magnetic induction between pairs of wires, two insulated copper wires aretwisted around each other. Each signal on twisted pair requires both wires.Since some telephone sets or desktop locations require multiple connections,twisted pair is sometimes installed in two or more pairs, all within a singlecable. WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit, 128-bit, or 256-bit shared key algorithm, as described in the IEEE 802.11standard. 47Server - Any computer whose function in a network is to provide user accessto files, printing, communications, and other services. Software - Instructions for the computer. A series of instructions that performsa particular task is called a "program." The two major categories of software are"system software" and "application software." System software is made up ofcontrol programs such as the operating system and database management sys-tem (DBMS). Application software is any program that processes data for theuser.A common misconception is that software is data. It is not. Software tells thehardware how to process the data.SOHO (Small Office/Home Office) - Market segment of professionals whowork at home or in small offices.Spread Spectrum - Spread Spectrum technology is a wideband radio frequen-cy technique developed by the military for use in reliable, secure, mission-crit-ical communications systems. It is designed to trade off bandwidth efficiencyfor reliability, integrity, and security. In other words, more bandwidth is con-sumed than in the case of narrowband transmission, but the trade off producesa signal that is, in effect, louder and thus easier to detect, provided that thereceiver knows the parameters of the spread-spectrum signal being broadcast.If a receiver is not tuned to the right frequency, a spread-spectrum signal lookslike background noise. There are two main alternatives, Direct SequenceSpread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).Static IP Address - A permanent IP address that is assigned to a node in an IPor a TCP/IP network. Subnet Mask - The method used for splitting IP networks into a series of sub-groups, or subnets. The mask is a binary pattern that is matched up with the IPaddress to turn part of the host ID address field into a field for subnets. Switch - 1. A data switch connects computing devices to host computers,allowing a large number of devices to share a limited number of ports. 2. Adevice for making, breaking, or changing the connections in an electrical cir-cuit.TCP (Transmission Control Protocol) - A method (protocol) used along withthe Internet Protocol (Internet Protocol) to send data in the form of messageunits between computers over the Internet. While IP takes care of handling theactual delivery of the data, TCP takes care of keeping track of the individual46
Wireless-G Access Point49Appendix D: SpecificationsStandards IEEE 802.11g, IEEE 802.11bChannels 11 Channels (USA)13 Channels (Europe)14 Channels (Japan) Port One 10/100,Auto-Crossover (MDI/MDI-X) PortCabling Type Category 5 or betterData Rate Up to 54Mbps (Wireless),10/100Mbps (Ethernet)LEDs Power, Link,ActTransmit Power12.5 dBmReceive Sensitivity 11Mbps: -80 dBm(typical) 54Mbps: -65 dBmModulation CCK, DQPSK, DBPSK, OFDMNetwork Protocols TCP/IP, IPX, NetBEUI48Dimensions 7.32" x 6.89" x 1.89" (186 mm x 175 mm x 48 mm)Unit Weight 18.25 oz. (0.51 kg)Certifications FCC Class BOperating Temp. 32ºF to 104ºF (0ºC to 40ºC)Storage Temp. -4ºF to 158ºF (-20ºC to 70ºC)Operating Humidity 10% to 80%, Non-CondensingStorage Humidity 5% to 90%, Non-CondensingEnvironmental
Wireless-G Access Point5150Appendix F: Contact InformationFor help with the installation or operation of this product, contact LinksysTechnical Support at one of the phone numbers or Internet addresses below.Sales Information 800-546-5797 (LINKSYS)Technical Support 800-326-7114RMA (Return MerchandiseAuthorization) Issues www.linksys.com (or call 949-271-5461)Fax 949-261-8868Email support@linksys.comWeb http://www.linksys.comFTP Site ftp.linksys.comAppendix E: Warranty InformationBE SURE TO HAVE YOUR PROOF OF PURCHASE AND A BARCODEFROM THE PRODUCT’S PACKAGING ON HAND WHEN CALLING.RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OFPURCHASE. IN NO EVENT SHALL LINKSYS’S LIABILITY EXCEED THE PRICEPAID FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL, INCI-DENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THEUSE OF THE PRODUCT, ITS ACCOMPANYING SOFTWARE, OR ITSDOCUMENTATION. LINKSYS DOES NOT OFFER REFUNDS FOR ANYPRODUCT. LINKSYS OFFERS CROSS SHIPMENTS, A FASTER PROCESS FOR PRO-CESSING AND RECEIVING YOUR REPLACEMENT. LINKSYS PAYSFOR UPS GROUND ONLY. ALL CUSTOMERS LOCATED OUTSIDE OFTHE UNITED STATES OF AMERICA AND CANADA SHALL BE HELDRESPONSIBLE FOR SHIPPING AND HANDLING CHARGES. PLEASECALL LINKSYS FOR MORE DETAILS.
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