Xplore Technologies IX104-112 Tablet PC with GSM and WLAN radios User Manual Aironet Installation for Window

Xplore Technologies Tablet PC with GSM and WLAN radios Aironet Installation for Window

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Corporate HeadquartersCisco Systems, Inc.170 West Tasman DriveSan Jose, CA 95134-1706 USAhttp://www.cisco.comTel: 408 526-4000800 553-NETS (6387)Fax: 408 526-4100Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guidefor WindowsCustomer Order Number: Text Part Number: OL-1394-06

iiiCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06CONTENTSPreface xiAudience xiiPurpose xiiOrganization xiiConventions xiiiRelated Publications xvObtaining Documentation xvCisco.com xvDocumentation CD-ROM xvOrdering Documentation xviDocumentation Feedback xviObtaining Technical Assistance xviCisco.com xviTechnical Assistance Center xviiCisco TAC Website xviiCisco TAC Escalation Center xviiiObtaining Additional Publications and Information xviiiProduct Overview 1-1Introduction to the Client Adapters 1-2Terminology 1-3Hardware Components 1-3Radio 1-3Radio Antenna 1-4LEDs 1-4Software Components 1-5Radio Firmware 1-5Driver 1-5Client Utilities 1-6Overview of ACU 1-6Buttons on the ACU Screens 1-8

ContentsixCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Technical Specifications A-1Translated Safety Warnings B-1Explosive Device Proximity Warning B-2Dipole Antenna Installation Warning B-3Warning for Laptop Users B-4Declarations of Conformity and Regulatory Information C-1Manufacturer’s Federal Communication Commission Declaration of Conformity Statement C-2Department of Communications – Canada C-3Canadian Compliance Statement C-3European Community, Switzerland, Norway, Iceland, and Liechtenstein C-4Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC C-42.4-GHz Client Adapters C-55-GHz Client Adapters C-6Declaration of Conformity for RF Exposure C-6Guidelines for Operating Cisco Aironet Wireless LAN Client Adapters in Japan C-6Japanese Translation C-6English Translation C-7Channels, Power Levels, and Antenna Gains D-1Channels D-2IEEE 802.11a D-2IEEE 802.11b D-3Maximum Power Levels and Antenna Gains D-4IEEE 802.11a D-4IEEE 802.11b D-4Configuring the Client Adapter through Windows XP E-1Overview E-2Overview of Security Features E-2Static WEP Keys E-2EAP (with Dynamic WEP Keys) E-2Configuring the Client Adapter E-4Enabling EAP-TLS Authentication E-8Enabling PEAP Authentication E-10Enabling EAP-SIM Authentication E-14Associating to an Access Point Using Windows XP E-16Viewing the Current Status of Your Client Adapter E-17

ContentsxCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Performing a Site Survey F-1Overview F-2Guidelines F-2Additional Information F-2Specifying Signal Strength Units F-3Using Passive Mode F-3Using Active Mode F-7Forcing the Client Adapter to Reassociate F-13GLOSSARYINDEX

xiCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06PrefaceThe preface provides an overview of the Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows, references related publications, and explains how to obtain other documentation and technical assistance, if necessary.The following topics are covered in this section:•Audience, page xii•Purpose, page xii•Organization, page xii•Conventions, page xiii•Related Publications, page xv•Obtaining Documentation, page xv•Obtaining Technical Assistance, page xvi•Obtaining Additional Publications and Information, page xviii

xiiiCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Preface Conventions•Appendix C, “Declarations of Conformity and Regulatory Information,” provides declarations of conformity and regulatory information for the client adapters.•Appendix D, “Channels, Power Levels, and Antenna Gains,” lists the IEEE 802.11a and IEEE 802.11b channels supported by the world's regulatory domains as well as the maximum power levels and antenna gains allowed per domain.•Appendix E, “Configuring the Client Adapter through Windows XP,” explains how to configure and use your client adapter with Windows XP.•Appendix F, “Performing a Site Survey,” shows people who are responsible for conducting a site survey how they can use ACU to determine the best placement for infrastructure devices within a wireless network.ConventionsThis publication uses the following conventions to convey instructions and information:•Commands and keywords are in boldface.•Variables are in italics.•Configuration parameters are capitalized.•Notes, cautions, and warnings use the following conventions and symbols:Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.WarningThis warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. (To see translations of the warnings that appear in this publication, refer to the appendix “Translated Safety Warnings.”)WaarschuwingDit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico’s en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. (Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het aanhangsel “Translated Safety Warnings” (Vertalingen van veiligheidsvoorschriften) raadplegen.)VaroitusTämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. (Tässä julkaisussa esiintyvien varoitusten käännökset löydät liitteestä "Translated Safety Warnings" (käännetyt turvallisuutta koskevat varoitukset).)

xivCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06PrefaceConventionsAttentionCe symbole d’avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures. Avant d’accéder à cet équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures courantes de prévention des accidents. Pour obtenir les traductions des mises en garde figurant dans cette publication, veuillez consulter l’annexe intitulée « Translated Safety Warnings » (Traduction des avis de sécurité).WarnungDieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. (Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Anhang mit dem Titel “Translated Safety Warnings” (Übersetzung der Warnhinweise).)AvvertenzaQuesto simbolo di avvertenza indica un pericolo. Si è in una situazione che può causare infortuni. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nell’appendice, “Translated Safety Warnings” (Traduzione delle avvertenze di sicurezza).AdvarselDette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du være oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. (Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i vedlegget "Translated Safety Warnings" [Oversatte sikkerhetsadvarsler].)AvisoEste símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos fisicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. (Para ver as traduções dos avisos que constam desta publicação, consulte o apêndice “Translated Safety Warnings” - “Traduções dos Avisos de Segurança”).¡Advertencia!Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. (Para ver traducciones de las advertencias que aparecen en esta publicación, consultar el apéndice titulado “Translated Safety Warnings.”)Varning!Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. (Se förklaringar av de varningar som förekommer i denna publikation i appendix "Translated Safety Warnings" [Översatta säkerhetsvarningar].)

xvCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Preface Related PublicationsRelated PublicationsFor more information about Cisco Aironet Wireless LAN Client Adapters for Windows, refer to the following publications:•Release Notes for Cisco Aironet Client Adapter Install Wizard•Release Notes for Cisco Aironet Client Adapter FirmwareFor more information about related Cisco Aironet products, refer to the publications for your infrastructure device. You can access Cisco Aironet technical documentation at this URL:http://www.cisco.com/en/US/products/hw/wireless/index.htmlObtaining DocumentationCisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems.Cisco.comYou can access the most current Cisco documentation on the World Wide Web at this URL:http://www.cisco.com/univercd/home/home.htmYou can access the Cisco website at this URL:http://www.cisco.comInternational Cisco websites can be accessed from this URL:http://www.cisco.com/public/countries_languages.shtmlDocumentation CD-ROMCisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which may have shipped with your product. The Documentation CD-ROM is updated regularly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual or quarterly subscription.Registered Cisco.com users can order a single Documentation CD-ROM (product number DOC-CONDOCCD=) through the Cisco Ordering tool:http://www.cisco.com/en/US/partner/ordering/ordering_place_order_ordering_tool_launch.htmlAll users can order monthly or quarterly subscriptions through the online Subscription Store:http://www.cisco.com/go/subscription

xviCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06PrefaceObtaining Technical AssistanceOrdering DocumentationYou can find instructions for ordering documentation at this URL:http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htmYou can order Cisco documentation in these ways:•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:http://www.cisco.com/en/US/partner/ordering/index.shtml•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387). Documentation FeedbackYou can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click Feedback at the top of the page.You can e-mail your comments to bug-doc@cisco.com.You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:Cisco SystemsAttn: Customer Document Ordering170 West Tasman DriveSan Jose, CA 95134-9883We appreciate your comments.Obtaining Technical AssistanceCisco provides Cisco.com, which includes the Cisco Technical Assistance Center (TAC) website, as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from the Cisco TAC website. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC website, including TAC tools and utilities. Cisco.comCisco.com offers a suite of interactive, networked services that let you access Cisco information,networking solutions, services, programs, and resources at any time, from anywhere in the world. Cisco.com provides a broad range of features and services to help you with these tasks:•Streamline business processes and improve productivity •Resolve technical issues with online support•Download and test software packages

xviiCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Preface Obtaining Technical Assistance•Order Cisco learning materials and merchandise•Register for online skill assessment, training, and certification programsTo obtain customized information and service, you can self-register on Cisco.com at this URL:http://tools.cisco.com/RPF/register/register.doTechnical Assistance CenterThe Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available: the Cisco TAC website and the Cisco TAC Escalation Center. The type of support that you choose depends on the priority of the problem and the conditions stated in service contracts, when applicable.We categorize Cisco TAC inquiries according to urgency:•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration. There is little or no impact to your business operations.•Priority level 3 (P3)—Operational performance of the network is impaired, but most business operations remain functional. You and Cisco are willing to commit resources during normal business hours to restore service to satisfactory levels.•Priority level 2 (P2)—Operation of an existing network is severely degraded, or significant aspects of your business operations are negatively impacted by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.•Priority level 1 (P1)—An existing network is “down,” or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.Cisco TAC WebsiteThe Cisco TAC website provides online documents and tools to help troubleshoot and resolve technical issues with Cisco products and technologies. To access the Cisco TAC website, go to this URL:http://www.cisco.com/tacAll customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website require a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:http://tools.cisco.com/RPF/register/register.doIf you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC website, you can open a case online at this URL:http://www.cisco.com/tac/caseopenIf you have Internet access, we recommend that you open P3 and P4 cases online so that you can fully describe the situation and attach any necessary files.

xviiiCisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06PrefaceObtaining Additional Publications and InformationCisco TAC Escalation CenterThe Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:http://www.cisco.com/warp/public/687/Directory/DirTAC.shtmlBefore calling, please check with your network operations center to determine the Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.Obtaining Additional Publications and InformationInformation about Cisco products, technologies, and network solutions is available from various online and printed sources.•The Cisco Product Catalog describes the networking products offered by Cisco Systems, as well as ordering and customer support services. Access the Cisco Product Catalog at this URL:http://www.cisco.com/en/US/products/products_catalog_links_launch.html•Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL:http://www.ciscopress.com•Packet magazine is the Cisco quarterly publication that provides the latest networking trends, technology breakthroughs, and Cisco products and solutions to help industry professionals get the most from their networking investment. Included are networking deployment and troubleshooting tips, configuration examples, customer case studies, tutorials and training, certification information, and links to numerous in-depth online resources. You can access Packet magazine at this URL:http://www.cisco.com/go/packet•iQ Magazine is the Cisco bimonthly publication that delivers the latest information about Internet business strategies for executives. You can access iQ Magazine at this URL:http://www.cisco.com/go/iqmagazine•Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html•Training—Cisco offers world-class networking training. Current offerings in network training are listed at this URL:http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html

CHAPTER1-1Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-061Product OverviewThis chapter describes the Cisco Aironet Wireless LAN Client Adapters and illustrates their role in a wireless network.The following topics are covered in this chapter:•Introduction to the Client Adapters, page 1-2•Hardware Components, page 1-3•Software Components, page 1-5•Network Configurations Using Client Adapters, page 1-8

1-2Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 1 Product OverviewIntroduction to the Client AdaptersIntroduction to the Client AdaptersThe Cisco Aironet Wireless LAN Client Adapters are radio modules that provide transparent wireless data communications between fixed, portable, or mobile devices and other wireless devices or a wired network infrastructure. The client adapters are fully compatible when used in devices supporting Plug-and-Play (PnP) technology.The primary function of the client adapters is to transfer data packets transparently through the wireless infrastructure through an access point connected to a wired LAN. The adapters operate similarly to a standard network product except that the cable is replaced with a radio connection and an access point is required to make the connection to the wire. No special wireless networking functions are required, and all existing applications that operate over a network can operate using the adapters.This document covers the five client adapters described in Table 1-1.Table 1-1 Client Adapter TypesClient Adapter Model Number Description IllustrationPC card AIR-PCM3xx An IEEE 802.11b-compliant 2.4-GHz 11-Mbps PCMCIA card radio module that can be inserted into any device equipped with an externalType II or Type III PC card slot. Host devices can include laptops, notebook computers, personal digital assistants, and handheld or portable devices. The PC card is available in the 340 and 350 series.LM card AIR-LMC3xx An IEEE 802.11b-compliant 2.4-GHz 11-Mbps PCMCIA card radio module that is usually preinstalled in a device equipped with an internal Type II or Type III PC card slot. Host devices usually include handheld or portable devices. The LM card is available in the 340 and 350 series.PCI card AIR-PCI3xx An IEEE 802.11b-compliant 2.4-GHz 11-Mbps client adapter card radio module that can be inserted into any device equipped with an empty PCI expansion slot, such as a desktop personal computer. The PCI card is available in the 340 and 350 series.Mini PCI card AIR-MPI350 An IEEE 802.11b-compliant 2.4-GHz 11-Mbps client adapter card radio module that is preinstalled in a device equipped with an internalType IIIA mini PCI card slot, such as a laptop computer. The mini PCI card is available only in the 350 series.PC-Cardbus card AIR-CB20A An IEEE 802.11a-compliant 5-GHz 54-Mbps client adapter card radio module with a Cardbus interface that can be inserted into any device equipped with an external Type II or Type III Cardbus slot. Host devices can include laptops, notebook computers, personal digital assistants, and handheld or portable devices.CISCO AIRONET 340 SERIES11 Mbps WIRELESS LAN ADAPTER47519CISCO AIRONET 340 SERIES11 Mbps WIRELESS LAN ADAPTER47893651896519074795

1-3Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 1 Product Overview Hardware ComponentsNote In the first three product model numbers, the first x represents the client adapter series (340 or 350), and the second x indicates the wired equivalent privacy (WEP) level of the card, where 0 = no WEP capability, 1 = 40-bit WEP, and 2 = 128-bit WEP. If the last two product model numbers contain K9, the card is 128-bit WEP capable.TerminologyThe following terms are used throughout this document:•client adapter—Refers to all five types of adapters.•PC card, LM card,PCI card,mini PCI card, or PC-Cardbus card—Refers to a specific adapter.•workstation (or station)—Refers to a computing device with an installed client adapter.•infrastructure device—Refers to a device that connects client adapters to a wired LAN, such as an access point, bridge, or base station. Throughout this document, access point is used to represent infrastructure devices in general.Hardware ComponentsThe client adapter has three major hardware components: a radio, a radio antenna, and two LEDs.RadioDifferent radios are used for the 2.4-GHz and 5-GHz client adapters:•The Cisco Aironet 340 and 350 series PC, LM, PCI, and mini PCI cards are IEEE 802.11b-compliant client adapters. They contain a direct-sequence spread spectrum (DSSS) radio that operates in the 2.4-GHz Industrial Scientific Medical (ISM) license-free band. The 340 series 30-milliwatt (mW) radio and the 350 series 100-mW radio transmit data over a half-duplex radio channel operating at up to 11 Mbps. These cards operate with other IEEE 802.11b-compliant client devices in ad hoc (or peer-to-peer) mode or with Cisco Aironet 340, 350, 1100, and 1200 Series Access Points (with a 2.4-GHz radio) and other IEEE 802.11b-compliant infrastructure devices in infrastructure mode. They are approved for indoor and outdoor use.DSSS technology distributes a radio signal over a wide range of frequencies and then returns the signal to the original frequency range at the receiver. The benefit of this technology is its ability to protect the data transmission from interference. For example, if a particular frequency encounters noise or interference or both, enough redundancy is built into the signal on other frequencies that the client adapter usually will still be successful in its transmission.•The Cisco Aironet AIR-CB20A PC-Cardbus card is an IEEE 802.11a-compliant client adapter. It contains an orthogonal frequency division multiplexing (OFDM) radio that operates in the Unlicensed National Information Infrastructure (UNII) 1 and UNII 2 license-free bands located in the lower 5-GHz portion of the radio frequency spectrum. The 20-mW radio transmits data over a half-duplex radio channel operating at up to 54 Mbps. This card interoperates with other IEEE 802.11a-compliant client devices in ad hoc mode or with Cisco Aironet 1200 Series Access Points (with a 5-GHz radio) and other IEEE 802.11a-compliant infrastructure devices in infrastructure mode. It is approved for indoor use only except in the United States, which allows for outdoor use on channels 52 through 64.

1-4Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 1 Product OverviewHardware ComponentsRadio AntennaThe type of antenna used depends on your client adapter:•PC cards have an integrated, permanently attached diversity antenna. The benefit of the diversity antenna system is improved coverage. The system works by allowing the card to switch and sample between its two antenna ports in order to select the optimum port for receiving data packets. As a result, the card has a better chance of maintaining the radio frequency (RF) connection in areas of interference. The antenna is housed within the section of the card that hangs out of the PC card slot when the card is installed.•LM cards are shipped without an antenna; however, an antenna can be connected through the card’s external connector.•PCI cards are shipped with a 2-dBi dipole antenna that attaches to the card’s antenna connector. However, other types of antennas may be used. PCI cards can be operated through only the primary (or right) antenna port.•Mini PCI cards are designed to be used with either one or two antennas, which connect to the card’s two antenna connectors. If two antennas are used, the radio automatically selects the antenna that presents the best RF signal. If only one antenna is used, the radio finds and uses it regardless of which connector it is plugged into.•PC-Cardbus cards have an integrated, permanently attached non-diversity antenna that contains two antenna ports, one for transmitting and one for receiving. The card cannot switch and sample between the ports. The antenna is housed within the section of the card that hangs out of the Cardbus slot when the card is installed.Note Refer to the Antenna Mode (Transmit and Receive) parameters in Table 5-4 and Table 5-5 for information on setting the client adapter’s antenna mode.Note External antennas used in combination with a power setting resulting in a radiated power level above 100 mW equivalent isotropic radiated power (EIRP) are not allowed for use within the European community and other countries that have adopted the European R&TTE directive or the CEPT recommendation Rec 70.03 or both. For more details on legal combinations of power levels and antennas in those countries, refer to the “Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC” section on page C-4 and the “Maximum Power Levels and Antenna Gains” section on page D-4.LEDsThe client adapters have two LEDs that glow or blink to indicate the status of the adapter or to convey error messages. Refer to Chapter 10 for an interpretation of the LED codes.Note Mini PCI cards do not have LEDs.

1-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 1 Product Overview Software ComponentsSoftware ComponentsThe client adapter has three major software components: radio firmware, a driver, and client utilities. These components are installed together by running a single Install Wizard file that is available from Cisco.com. This file can be run on Windows 98, 98 SE, NT, 2000, Me, or XP and can be used with any of the following client adapter types:•340 and 350 series PC, LM, and PCI cards•350 series mini PCI cards•PC-Cardbus (CB20A) cardsChapter 3 provides instructions on using the Install Wizard to install or upgrade these software components.Note Prior to the release of the Install Wizard file, each software component had to be installed separately. This version of the Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows pertains specifically to versions of the software that are available through the Install Wizard. If you are using, installing, or upgrading to versions of client adapter software that do not use the Install Wizard, refer to version OL-1394-04 of this manual for information and instructions.Radio FirmwareThe firmware controls the client adapter’s radio. The client adapter is shipped with the firmware installed in Flash memory. However, Cisco recommends that you always use the latest version. You can upgrade the client adapter’s firmware in three ways:•Through the Install Wizard—The Install Wizard automatically upgrades the client adapter’s firmware to the version included in the Install Wizard file.•Through the driver—The driver included in the Install Wizard file is also bundled with client adapter firmware. Each time you insert a client adapter or reboot your computer, the driver loads and may install the firmware with which it is bundled (if that firmware is newer than the firmware that is currently installed in the adapter). You can use the Install Wizard’s Disable Firmware Checking parameter or ACU’s Automatically Load New Firmware When NDIS Driver Is Updated parameter to specify whether the driver upgrades the firmware. Refer to page 3-6 and page 9-10 for more information.•Through ACU—The Load Firmware icon or Load New Firmware menu option in ACU enables you to upgrade the client adapter’s firmware from an image (*.img) file that contains only firmware. Refer to the “Upgrading the Firmware” section on page 9-8 for more information.DriverThe driver provides an interface between a computer running a Windows operating system and the client adapter, thereby enabling Windows and the applications it runs to communicate with the adapter. The driver must be installed before the adapter can be used.

1-6Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 1 Product OverviewSoftware ComponentsClient UtilitiesTwo client utilities are available for use with Cisco Aironet client adapters: Aironet Client Utility (ACU) and Aironet Client Monitor (ACM). These utilities are optional applications that interact with the radio firmware to adjust client adapter settings and display information about the adapter.ACU enables you to create configuration profiles for your client adapter and perform user-level diagnostics. Because ACU performs a variety of functions, it is documented by function throughout this manual. However, an overview of the utility is provided below to familiarize you with its interface.ACM, which is accessible from an icon in the Windows system tray, provides a small subset of the features available through ACU. Specifically, it enables you to access status information about your client adapter and perform basic tasks. Chapter 8 provides detailed information and instructions on using ACM.Note If your computer is running Windows XP, you can configure your client adapter through the Windows operating system instead of through ACU. Refer to Appendix E for information. However, ACU is recommended for configuring the client adapter.Overview of ACUThe Aironet Client Utility screen (see Figure 1-1) is ACU’s primary screen.Figure 1-1 Aironet Client Utility Screen

1-8Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 1 Product OverviewNetwork Configurations Using Client AdaptersButtons on the ACU ScreensThe buttons on the ACU screens are used to perform specific functions. Table 1-2 describes the most common buttons.Network Configurations Using Client AdaptersClient adapters can be used in a variety of network configurations. In some configurations, access points provide connections to your network or act as repeaters to increase wireless communication range. The maximum communication range is based on how you configure your wireless network.This section describes and illustrates the two most common network configurations:•Ad hoc wireless local area network (LAN)•Wireless infrastructure with workstations accessing a wired LANFor examples of more complex network configurations involving client adapters and access points, refer to the documentation for your access point.Note Refer to Chapter 5 for information on setting the client adapter’s network mode.Table 1-2 Buttons on the ACU ScreensButton DescriptionApply Saves any changes without exiting the screenCancel Exits the screen without saving any changesDefaults Displays the default value of each parameterHelp Provides information on the screen and its parametersOK Saves any changes and exits the screenStart Initiates a testStop Stops a test that is running

1-9Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 1 Product Overview Network Configurations Using Client AdaptersAd Hoc Wireless LANAn ad hoc (or peer-to-peer) wireless LAN (see Figure 1-2) is the simplest wireless LAN configuration. In a wireless LAN using an ad hoc network configuration, all devices equipped with a client adapter can be linked together and communicate directly with each other. The use of an infrastructure device, such as an access point, is not required.Figure 1-2 Ad Hoc Wireless LAN47520

1-10Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 1 Product OverviewNetwork Configurations Using Client AdaptersWireless Infrastructure with Workstations Accessing a Wired LANA microcellular network can be created by placing two or more access points on a LAN. Figure 1-3shows a microcellular network with workstations accessing a wired LAN through several access points.This configuration is useful with portable or mobile stations because it allows them to be directly connected to the wired network even while moving from one microcell domain to another. This process is transparent, and the connection to the file server or host is maintained without disruption. The mobile station stays connected to an access point as long as it can. However, once the transfer of data packets needs to be retried or beacons are missed, the station automatically searches for and associates to another access point. This process is referred to as seamless roaming.Figure 1-3 Wireless Infrastructure with Workstations Accessing a Wired LANAccess Point(Root Unit)Access Point(Root Unit)5835Wired LAN

CHAPTER2-1Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-062Preparing for InstallationThis chapter provides information that you need to know before installing a client adapter.The following topics are covered in this chapter:•Safety information, page 2-2•Unpacking the Client Adapter, page 2-3•System Requirements, page 2-4•Site Requirements, page 2-5

2-2Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 2 Preparing for InstallationSafety informationSafety informationFollow the guidelines in this section to ensure proper operation and safe use of the client adapter.FCC Safety Compliance StatementThe FCC, with its action in ET Docket 96-8, has adopted a safety standard for human exposure to RF electromagnetic energy emitted by FCC-certified equipment. When used with approved Cisco Aironet antennas, Cisco Aironet products meet the uncontrolled environmental limits found in OET-65 and ANSI C95.1, 1991. Proper operation of this radio device according to the instructions in this publication will result in user exposure substantially below the FCC recommended limits.Safety Guidelines•Do not touch or move the antenna while the unit is transmitting or receiving.•Do not hold any component containing a radio such that the antenna is very close to or touching any exposed parts of the body, especially the face or eyes, while transmitting.•Do not operate the radio or attempt to transmit data unless the antenna is connected; otherwise, the radio may be damaged.•High-gain, wall-mount, or mast-mount antennas are designed to be professionally installed and should be located at a minimum distance of 12 inches (30 cm) or more from the body of all persons. Please contact your professional installer, VAR, or antenna manufacturer for proper installation requirements.•Use in specific environments:–The use of wireless devices in hazardous locations is limited to the constraints posed by the safety directors of such environments.–The use of wireless devices on airplanes is governed by the Federal Aviation Administration (FAA).–The use of wireless devices in hospitals is restricted to the limits set forth by each hospital.

2-3Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 2 Preparing for Installation Unpacking the Client AdapterWarningsObserve the following warnings when operating the client adapter:WarningDo not operate your wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use.WarningIn order to comply with FCC radio frequency (RF) exposure limits, dipole antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons.WarningIn order to comply with RF exposure limits established in the ANSI C95.1 standards, it is recommended when using a laptop with a PC card client adapter that the adapter’s integrated antenna is positioned more than 2 inches (5 cm) from your body or nearby persons during extended periods of transmitting or operating time. If the antenna is positioned less than 2 inches (5 cm) from the user, it is recommended that the user limit exposure time.Translated versions of these safety warnings are provided in Appendix B.Unpacking the Client AdapterFollow these steps to unpack the client adapter:Step 1 Open the shipping container and carefully remove the contents. Step 2 Return all packing materials to the shipping container and save it.Step 3 Ensure that all items listed in the “Package Contents” section below are included in the shipment. Check each item for damage.Note If any item is damaged or missing, notify your authorized Cisco sales representative. Any remote antenna and its associated wiring are shipped separately.Package ContentsEach client adapter is shipped with the following items:•Standard 2-dBi dipole antenna (PCI cards only)•Quick Start Guide: Cisco Aironet Wireless LAN Client Adapters•Cisco Aironet Wireless LAN Client Adapters CD (for 2.4-GHz client adapters) orCisco Aironet 5-GHz 54-Mbps Wireless Adapters CD (for 5-GHz client adapters)•Cisco product registration card

2-4Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 2 Preparing for InstallationSystem RequirementsSystem RequirementsIn addition to the items shipped with the client adapter, you also need the following in order to install and use the adapter:•One of the following computing devices running Windows 98, 98 SE, NT, 2000, Me, or XP:–Laptop, notebook, or portable or handheld device equipped with a Type II or Type III PC card slot or Cardbus slot–Desktop personal computer equipped with an empty PCI expansion slot–Handheld or portable device with an embedded LM card–Laptop or other computing device with an embedded mini PCI cardNote PC-Cardbus cards are not supported for use with Windows NT.Note Cisco recommends using a display with a minimum resolution of 800 x 600 pixels.Note All drivers and supporting software (Card and Socket Services) for the PC card slot or Cardbus slot must be loaded and configured.•35 MB of free hard disk space (minimum)•A maximum of eight network connections if your computer is running Windows 98 or 98 SENote Windows 98 and 98 SE limit your computer’s network connections. If you try to install a client adapter when eight network devices (such as a PCMCIA Ethernet card, dial-up adapter, VPN adapter, docking station Ethernet card, etc.) are already connected to your computer, the new adapter cannot establish a network connection.•Windows NT Service Pack 6 or greater if your computer is running Windows NT•A Phillips screwdriver (for PCI cards)•The Microsoft 802.1X supplicant, if your wireless network uses EAP-TLS, PEAP, or EAP-SIM authentication•If your wireless network uses PEAP authentication with a One-Time Password (OTP) user database: –SofToken version 1.3, 2.0, or greater from Secure Computing; SecurID version 2.5 from RSA; or hardware token from OTP vendors–Your software token PIN or hardware token password

2-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 2 Preparing for Installation Site Requirements•If your wireless network uses EAP-SIM authentication:–PCSC-compliant smartcard reader installed in your computer’s Type II or Type III PC card slot–Gemplus SIM+ smartcard inserted in the reader–The SIM card’s PINNote The EAP-SIM supplicant included in the Install Wizard file supports only Gemplus SIM+ cards; however, an updated supplicant is available that supports standard GSM-SIM cards as well as more recent versions of the EAP-SIM protocol. The new supplicant is available for download from the ftpeng FTP server at the following URL:ftp://ftpeng.cisco.com/ftp/pwlan/eapsim/CiscoEapSim.dll•The following information from your system administrator:–The logical name for your workstation (also referred to as client name)–The protocols necessary to bind to the client adapter–The case-sensitive service set identifier (SSID) for your RF network–If your computer is not connected to a DHCP server, the IP address, subnet mask, and default gateway address of your computer–The wired equivalent privacy (WEP) keys of the access points with which your client adapter will communicate, if your wireless network uses static WEP for security–The username and password for your network accountSite RequirementsThis section discusses the site requirements for both infrastructure and client devices.For Infrastructure DevicesBecause of differences in component configuration, placement, and physical environment, every network application is a unique installation. Therefore, before you install any wireless infrastructure devices (such as access points, bridges, and base stations, which connect your client adapters to a wired LAN), a site survey must be performed to determine the optimum placement of these devices to maximize range, coverage, and network performance. Appendix F, which is provided for people who are responsible for conducting a site survey, explains how ACU’s site survey tool can be used to determine the best placement for infrastructure devices within a wireless network.Note Infrastructure devices are installed and initially configured prior to client devices.

2-6Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 2 Preparing for InstallationSite RequirementsFor Client DevicesBecause the client adapter is a radio device, it is susceptible to RF obstructions and common sources of interference that can reduce throughput and range. Follow these guidelines to ensure the best possible performance:•Install the client adapter in an area where large steel structures such as shelving units, bookcases, and filing cabinets will not obstruct radio signals to and from the client adapter.•Install the client adapter away from microwave ovens. Microwave ovens operate on the same frequency as the client adapter and can cause signal interference.

CHAPTER3-1Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-063Installing the Client AdapterThis chapter provides instructions for installing the client adapter’s firmware, driver, utilities, and security modules.The following topics are covered in this chapter:•Installing or Upgrading the Client Adapter Software, page 3-2•Verifying Installation, page 3-22•Deciding How to Configure Your Client Adapter (Windows XP Only), page 3-22•Selecting Among Several Installed Client Adapters, page 3-24

3-2Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareInstalling or Upgrading the Client Adapter SoftwareThis section enables you to install or upgrade Cisco Aironet client adapter firmware, drivers, utilities, and security modules from a self-extracting executable file named Windows-Client-Installation-Wizard-v.exe, where vrepresents the version number.Follow the instructions below to install or upgrade client adapter software on a computer running Windows 98, 98 SE, 2000, Me, or XP. If your computer is running Windows NT, follow the instructions on page 3-12.Caution The Install Wizard automatically upgrades client adapter firmware to the version included in the Install Wizard file. Both of the client adapter’s LEDs light continuously while the firmware upgrade occurs. Do not eject the client adapter while the firmware is being upgraded.Note The Install Wizard file is not yet available on the CD that ships with Cisco Aironet client adapters. If you are installing or upgrading to versions of client adapter software that do not use the Install Wizard file, refer to version OL-1394-04 of this manual for installation, configuration, and operation instructions.Installing or Upgrading the Client Adapter Software on Windows 98, 98 SE, 2000, Me, or XPFollow the steps below to install or upgrade client adapter software components on a computer running Windows 98, 98 SE, 2000, Me, or XP.Note Windows Me and XP come with a driver that is installed automatically the first time you insert a PC, LM, or PCI card. Follow the procedure below to upgrade this driver to the latest one available.Step 1 Use your computer’s web browser to access the following URL:http://www.cisco.com/public/sw-center/sw-wireless.shtmlStep 2 Select Option #2: Aironet Wireless Software Display Tables.Note You can download software from the Software Selector tool instead of the display tables. To do so, select Option #1: Aironet Wireless Software Selector, follow the instructions on the screen, and go to Step 6.Step 3 Select Cisco Aironet Wireless LAN Client Adapters.Step 4 Under Aironet Client Adapter Installation Wizard (For Windows), select Aironet Client Adapter Installation Wizard for Windows.Step 5 Select the Install Wizard file with the greatest version number.Step 6 Read and accept the terms and conditions of the Software License Agreement.Step 7 Select the file again to download it.Step 8 Save the file to your computer’s hard drive.

3-3Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwareStep 9 Follow the instructions in Chapter 9 to insert the client adapter into your computer, if it is not already inserted. The instructions are different for PC cards, PC-Cardbus cards, and PCI cards.Caution Do not eject your client adapter at any time during the installation process, including during the reboot.Step 10 If a driver is not currently installed for your client adapter, the Found New Hardware Wizard screen appears. Click Cancel.Step 11 Find the Install Wizard file using Windows Explorer, double-click it, and extract its files to a folder.Note To extract the files, click Browse on the WinZip Self-Extractor screen, select the folder in which you want the files to be placed, and click OK and Unzip. After the files are extracted, click OKto close the screen.Step 12 Close Windows Explorer. The Cisco Aironet Wireless LAN Client Adapter Installation Wizard screen appears (see Figure 3-1).Figure 3-1 Cisco Aironet Wireless LAN Client Adapter Installation Wizard Screen

3-4Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareStep 13 Select one of the following options on the Cisco Aironet Wireless LAN Client Adapter Installation Wizard screen and click Next:Note To ensure compatibility among software components, Cisco recommends that you perform an express installation. If you perform a custom installation, Cisco recommends that you install all components.•Express Installation/Upgrade (recommended)—Silently installs the client adapter firmware, drivers, client utilities, and security modules using the default values listed in Table 3-1.•Custom Installation/Upgrade—Enables you to specify which software components are installed and to change the default values of certain parameters.Step 14 If a message appears indicating that you may be required to restart your computer at the end of the installation process, click OK.Note If you click Cancel, the installation process terminates.Step 15 If you selected an express installation, go to Step 17. If you selected a custom installation, the Custom Installation screen appears (see Figure 3-2).Figure 3-2 Custom Installation Screen

3-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwareStep 16 Follow the steps below to make selections on this screen.a. Make sure a check mark appears beside every software component that you want to install. For every component that is checked, the Install Wizard will install its version of that component. Every component that is not checked will remain as it currently is on your system.Note Click the + sign beside the Security Modules option to reveal the available security components.Note Some components are dependent on others. Therefore, when you select or deselect these components, the settings of other components may change. A dependency notice appears when this occurs.b. Click the + sign beside each component to view additional parameters. The current value of each parameter appears in the Value field.c. To change the value of any parameter, click its current value in the Value field. A screen appears that lets you change the existing value.d. Enter or select a new value and click OK.Table 3-1 describes each component and its parameters and lists any default value.

$3-6Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareTable 3-1 Software Components and Their ParametersComponent or Parameter DescriptionFirmware Installs the firmware version included in the Install Wizard file.Default: CheckedDisable Firmware Checking The Disable Firmware Checking parameter affects the firmware that is bundled with the driver, not the firmware that is included in the Install Wizard. This parameter controls whether the driver (whenever it loads) installs the firmware with which it is bundled.Note The driver loads each time you insert a client adapter or reboot your computer.Options: Yes or NoDefault: YesDisable Firmware Checking DescriptionYes Prevents the driver from installing the firmware with which it is bundled, enabling the client adapter to retain its current firmware version.No Causes the driver to install the firmware with which it is bundled if that firmware is newer than the firmware that is currently installed in the client adapter.Note The Disable Firmware Checking parameter is functionally equivalent to the Automatically Load New Firmware When NDIS Driver Is Updated parameter on the ACU Preferences screen. The parameter that is set last is the one that governs how the driver behaves. Refer to the “Preventing the Driver from Upgrading the Firmware” section on page 9-10 for additional information.Note The Disable Firmware Checking parameter is available in Install Wizard version 1.1 or greater.Drivers Installs the driver version included in the Install Wizard file.Default: CheckedAironet Client Utility Installs the ACU version included in the Install Wizard file.Default: CheckedInstallation Path Determines the path where the ACU software will be installed. You can change the default by entering a new path.Default: C:\Program Files\Cisco Systems\Aironet Client UtilityProgram Folder Determines the program folder where the ACU software will be installed. You can change the default by entering a new folder name.Default: Cisco Systems$

$3-7Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwarePlace Icon on Desktop Causes the installation program to add an ACU icon to your computer’s desktop to provide quick access to the utility.Options: Yes or NoDefault: YesAllow Non-Administrator Users to Save Settings to the RegistryEnables users without administrative rights to modify profiles in ACU and save them to the registry on computers running Windows 2000 or XP.Options: Yes or NoDefault: YesNote This option is not available for Windows 98, 98 SE, and Me because these versions of Windows do not support different classes of users.Aironet Client Monitor Installs the ACM version included in the Install Wizard file.Default: CheckedInstallation Path Determines the path where the ACM software will be installed. You can change the default by entering a new path.Default: C:\Program Files\Cisco Systems\Aironet Client MonitorProgram Folder Determines the program folder where the ACM software will be installed. You can change the default by entering a new folder name.Default: Cisco SystemsAuto Start Determines whether ACM starts automatically every time Windows boots.Options: Yes or NoDefault: YesNote If you select No, you can later activate ACM by using Windows Explorer to find the path where the ACM software is installed and double-clicking ACUMon.exe.Start After Install Determines whether ACM starts automatically after ACM is installed.Options: Yes or NoDefault: YesNote If you select No, you can later activate ACM by using Windows Explorer to find the path where the ACM software is installed and double-clicking ACUMon.exe.Table 3-1 Software Components and Their Parameters (continued)Component or Parameter Description$

3-10Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter Softwaree. When you are finished making selections, click Next.Step 17 The installation process begins, and you are notified as each component is installed. Perform one of the following:•If the following message appears, click OK and then reboot your computer: “The installation will complete and applications will be installed when a wireless LAN client adapter is inserted. If an adapter is already inserted, remove and reinsert the adapter or reboot the machine.”The Found New Hardware screen appears. Depending on your computer’s operating system, you may have to click Next. The driver and other software components are installed. Then an ACM icon appears in the Windows system tray (unless you changed the default value during installation). Perform one of the following:–If a message appears asking if you wish to reboot now, click Yes.Note To ensure that your client adapter software is installed properly, Cisco recommends that you click Yes to reboot your computer now.–If a message appears indicating that the system is about to reboot, click OK and allow your computer to restart.•If a message appears asking if you wish to reboot now, click Yes.Note To ensure that your client adapter software is installed properly, Cisco recommends that you click Yes to reboot your computer now.PEAP Installs the PEAP supplicant version included in the Install Wizard file. Installing the PEAP supplicant enables the client to support PEAP authentication. If this option is not selected now and you later want to use PEAP, you must run this installation program again and select this option.Default: UncheckedNote Refer to Chapter 5 for information on enabling PEAP.Note To enable Cisco PEAP authentication, your computer must run Windows 2000 with the Microsoft 802.1X supplicant installed or Windows XP.Note Service Pack 1 for Windows XP and the Microsoft 802.1X supplicant for Windows 2000 include Microsoft’s PEAP supplicant, which supports a Windows username and password only and does not interoperate with Cisco’s PEAP supplicant. To use Cisco’s PEAP supplicant, install the Install Wizard file after Service Pack 1 for Windows XP or the Microsoft 802.1X supplicant for Windows 2000. Otherwise, Cisco’s PEAP supplicant is overwritten by Microsoft’s PEAP supplicant.Table 3-1 Software Components and Their Parameters (continued)Component or Parameter Description

3-11Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter Software•If a message appears indicating that the system is about to reboot, click OK and allow your computer to restart.Step 18 If you want to install a second client adapter, allow your computer to reboot completely; then insert the second adapter into your computer. Depending on your computer’s operating system, one of the following scenarios occurs:•The Found New Hardware Wizard screen appears. Depending on your computer’s operating system, you may have to click Next. The driver and other software components are installed, and another ACM icon appears in the Windows system tray. Click Yes or OK when a message appears about rebooting your computer.Note To ensure that your client adapter software is installed properly, Cisco recommends that you reboot your computer now.•The driver and other software components are installed, and another ACM icon appears in the Windows system tray. Click Yes or OK when a message appears about rebooting your computer.Note To ensure that your client adapter software is installed properly, Cisco recommends that you reboot your computer now.Step 19 If your computer is not connected to a DHCP server and you plan to use TCP/IP, follow the steps below for your operating system. If you have more than one client adapter installed, repeat this step for each adapter.•Windows 98, 98 SE, and Me—Double-click My Computer,Control Panel, and Network. Select TCP/IP > Cisco Systems Wireless LAN Adapter. Click Properties, select Specify an IP address,and enter the IP address, subnet mask, and default gateway address of your computer (which can be obtained from your system administrator). Click OK. In the Network window, click OK.•Windows 2000—Double-click My Computer,Control Panel, and Network and Dial-up Connections. Right-click Local Area Connection x (where x represents the number of the connection). Click Properties,Internet Protocol (TCP/IP), and Properties. Click Use the following IP address and enter the IP address, subnet mask, and default gateway address of your computer (which can be obtained from your system administrator). Click OK. In the Local Area Connection Properties window, click OK.•Windows XP—Right-click Wireless Network Connection and click Properties. Select Internet Protocol (TCP/IP) and click Properties. Select Use the following IP address and enter the IP address, subnet mask, and default gateway address of your computer (which can be obtained from your system administrator). Click OKStep 20 If you are prompted to restart your computer, click Yes.Step 21 Go to the “Verifying Installation” section on page 3-22 to determine if the installation was successful. After you verify installation, go to Chapter 4 if you want to create profiles for your client adapter.

3-12Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareInstalling or Upgrading the Client Adapter Software on Windows NTFollow the steps below to install or upgrade client adapter software components on a computer running Windows NT.Note PC-Cardbus cards are not supported for use with Windows NT.Note This procedure requires that your computer has Windows NT Service Pack 6 or greater.Step 1 Use your computer’s web browser to access the following URL:http://www.cisco.com/public/sw-center/sw-wireless.shtmlStep 2 Select Option #2: Aironet Wireless Software Display Tables.Note You can download software from the Software Selector tool instead of the display tables. To do so, select Option #1: Aironet Wireless Software Selector, follow the instructions on the screen, and go to Step 6.Step 3 Select Cisco Aironet Wireless LAN Client Adapters.Step 4 Under Aironet Client Adapter Installation Wizard (For Windows), select Aironet Client Adapter Installation Wizard for Windows.Step 5 Select the Install Wizard file with the greatest version number.Step 6 Read and accept the terms and conditions of the Software License Agreement.Step 7 Select the file again to download it.Step 8 Save the file to your computer’s hard drive.Step 9 If you are installing a PC or LM card, follow the steps below to obtain an available interrupt request (IRQ):a. Select Start > Programs > Administrative Tools > Windows NT Diagnostics.b. Click the Resources tab.c. Click the IRQ button.d. The used IRQs are listed in numerical order along the left side of the Resources window. Write down the number of an IRQ that is not being used. You will need this IRQ for Step 21.Step 10 If you are installing a PC or LM card, double-click My Computer,Control Panel, and Devices. Scroll down and select Pcmcia. Click Startup, select Automatic, and click OK.Step 11 Follow the instructions in Chapter 9 to insert the client adapter into your computer if it is not already inserted. The instructions are different for PC cards and PCI cards.Caution Do not eject your client adapter at any time during the installation process, including during the reboot.Step 12 If the Windows NT Wizard screen appears, click Exit.

3-13Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwareStep 13 Find the Install Wizard file using Windows Explorer, double-click it, and extract its files to a folder.Note To extract the files, click Browse on the WinZip Self-Extractor screen, select the folder in which you want the files to be placed, and click OK and Unzip. After the files are extracted, click OKto close the screen.Step 14 Close Windows Explorer. The Cisco Aironet Wireless LAN Client Adapter Installation Wizard screen appears (see Figure 3-3).Figure 3-3 Cisco Aironet Wireless LAN Client Adapter Installation Wizard ScreenStep 15 Select one of the following options and click Next:Note To ensure compatibility among software components, Cisco recommends that you perform an express installation. If you perform a custom installation, Cisco recommends that you install all components.•Express Installation/Upgrade (recommended)—Silently installs the client adapter firmware, drivers, client utilities, and security modules using the default values listed in Table 3-2.•Custom Installation/Upgrade—Enables you to specify which software components are installed and to change the default values of certain parameters.Step 16 A screen appears with a list of available drivers (see Figure 3-4).

3-14Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareFigure 3-4 Installable Drivers ScreenStep 17 Select the driver that corresponds to your client adapter type and click Next.Note You must select a driver even if one is not being installed.Step 18 If you selected an express installation, go to Step 20. If you selected a custom installation, the Custom Installation screen appears (see Figure 3-5).Figure 3-5 Custom Installation Screen

3-15Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwareStep 19 Follow the steps below to make selections on this screen.a. Make sure a check mark appears beside every software component that you want to install. For every component that is checked, the Install Wizard will install its version of that component. Every component that is not checked will remain as it is on your system.Note Click the + sign beside the Security Modules option to reveal the available security components.Note Some components are dependent on others. Therefore, when you select or deselect these components, the settings of other components may change. A dependency notice appears when this occurs.b. Click the + sign beside each component to view additional parameters. The current value of each parameter appears in the Value field.c. To change the value of any parameter, click its current value in the Value field. A screen appears that lets you change the existing value.d. Enter or select a new value and click OK.Table 3-2 describes each component and its parameters and lists any default value.

$3-16Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareTable 3-2 Software Components and Their ParametersComponent or Parameter DescriptionFirmware Installs the firmware version included in the Install Wizard file.Default: CheckedDisable Firmware Checking The Disable Firmware Checking parameter affects the firmware that is bundled with the driver, not the firmware that is included in the Install Wizard. This parameter controls whether the driver (whenever it loads) installs the firmware with which it is bundled.Note The driver loads each time you insert a client adapter or reboot your computer.Options: Yes or NoDefault: YesDisable Firmware Checking DescriptionYes Prevents the driver from installing the firmware with which it is bundled, enabling the client adapter to retain its current firmware version.No Causes the driver to install the firmware with which it is bundled if that firmware is newer than the firmware that is currently installed in the client adapter.Note This parameter is functionally equivalent to the Automatically Load New Firmware When NDIS Driver Is Updated parameter on the ACU Preferences screen. The parameter that is set last is the one that governs how the driver behaves. Refer to the “Preventing the Driver from Upgrading the Firmware” section on page 9-10 for additional information.Note The Disable Firmware Checking parameter is available in Install Wizard version 1.1 or greater.Drivers Installs the driver version included in the Install Wizard file.Default: CheckedAironet Client Utility Installs the ACU version included in the Install Wizard file.Default: CheckedInstallation Path Determines the path where the ACU software will be installed. You can change the default by entering a new path.Default: C:\Program Files\Cisco Systems\Aironet Client UtilityProgram Folder Determines the program folder where the ACU software will be installed. You can change the default by entering a new folder name.Default: Cisco Systems$

$3-17Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwarePlace Icon on Desktop Causes the installation program to add an ACU icon to your computer’s desktop to provide quick access to the utility.Options: Yes or NoDefault: YesAllow Non-Administrator Users to Save Settings to the RegistryEnables users without administrative rights to modify profiles in ACU and save them to the registry.Options: Yes or NoDefault: YesAironet Client Monitor Installs the ACM version included in the Install Wizard file.Default: CheckedInstallation Path Determines the path where the ACM software will be installed. You can change the default by entering a new path.Default: C:\Program Files\Cisco Systems\Aironet Client MonitorProgram Folder Determines the program folder where the ACM software will be installed. You can change the default by entering a new folder name.Default: Cisco SystemsAuto Start Determines whether ACM starts automatically every time Windows boots.Options: Yes or NoDefault: YesStart After Install Determines whether ACM starts automatically after ACM is installed.Options: Yes or NoDefault: YesTable 3-2 Software Components and Their Parameters (continued)Component or Parameter Description$

3-20Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterInstalling or Upgrading the Client Adapter SoftwareStep 20 The wizard starts to copy files, and the Cisco Aironet Wireless LAN Adapter Setup screen appears (see Figure 3-6).Figure 3-6 Cisco Aironet Wireless LAN Adapter Setup ScreenStep 21 If you are installing a PC or LM card, select Interrupt in the Property list and an unused interrupt (from Step 9) in the Value field and click OK. If you are installing a PCI or mini PCI card, click OK.Step 22 Messages appear as binding configurations are stored. Then the Microsoft TCP/IP Properties screen appears (see Figure 3-7).

3-21Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Installing or Upgrading the Client Adapter SoftwareFigure 3-7 Microsoft TCP/IP Properties ScreenStep 23 On the IP Address tab, find and select the client adapter that you are installing under Adapter.Step 24 Perform one of the following:•If your computer is connected to a DHCP server, select Obtain an IP address from a DHCP server.When asked if you want to enable DHCP, click Yes and OK.•If your computer is not connected to a DHCP server and you plan to use TCP/IP, select Specify an IP address and enter the IP address, subnet mask, and default gateway address of your computer (which can be obtained from your system administrator). Click OK.The installation process begins, and you are notified as each component is installed.Step 25 Windows NT must be rebooted in order for your changes to take effect. Click Yes when a message appears asking if you wish to reboot now.Caution To prevent unpredictable results, Cisco recommends that you click Yes to reboot your computer now.

3-22Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterVerifying InstallationStep 26 If you want to install a second client adapter, allow your computer to completely reboot; then repeat the steps in this section for the second adapter.Note In Step 13, find the Install Wizard files using Windows Explorer. Then double-click the Setup.exe file.Step 27 Go to the “Verifying Installation” section below to determine if the installation was successful. After you verify installation, go to Chapter 4 if you want to create profiles for your client adapter.Verifying InstallationTo verify that you have properly installed the client adapter software, check the client adapter’s LEDs. If the installation was successful, the client adapter’s green LED blinks.Note If your installation was unsuccessful or you experienced problems during or after installation, refer to Chapter 10 for troubleshooting information.Now that your client adapter is properly installed, you are ready to go to Chapter 4 to create profiles for your client adapter, unless you are running Windows XP or have more than one client adapter installed.•If you are running Windows XP, go to the “Deciding How to Configure Your Client Adapter (Windows XP Only)” section below.•If you have more than one client adapter installed, go to the “Selecting Among Several Installed Client Adapters” section on page 3-24.Deciding How to Configure Your Client Adapter(Windows XP Only)Windows XP is the only operating system that enables you to configure your client adapter without using ACU. Therefore, if your computer is running Windows XP, you must decide whether to configure your client adapter through Windows XP or ACU. To help you with your decision, Table 3-3 compares the Windows XP and ACU client adapter features.Table 3-3 Comparison of Windows XP and ACU Client Adapter FeaturesFeature Windows XP ACUConfiguration parameters Limited ExtensiveCapabilitiesCreate profiles No YesUpgrade radio firmware No YesRestart client adapter without rebooting or ejecting card No YesTurn radio on or off No Yes

3-23Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 3 Installing the Client Adapter Deciding How to Configure Your Client Adapter (Windows XP Only)Perform one of the following:•If you are planning to configure your client adapter through ACU instead of through Windows XP, follow the steps below:a. Double-click My Computer,Control Panel, and Network Connections.b. Right-click Wireless Network Connection and click Properties.c. Select the Wireless Networks tab and uncheck the Use Windows to configure my wireless network settings check box.d. Select the Authentication tab.Note In Service Pack 1 for Windows XP, the Authentication tab has moved from its previous location. To access it, click the Wireless Networks tab, select the network that you are configuring in the Preferred network list, and click Properties.e. Uncheck the Enable network access control using IEEE 802.1X check box.f. Follow the instructions in Chapter 4 and Chapter 5 to configure your client adapter through ACU.•If you are planning to configure your client adapter through Windows XP instead of through ACU, go to Appendix E and follow the instructions there.•If you are planning to configure your client adapter through Windows XP but you want to use ACU’s diagnostic tools, go to Appendix E to configure the adapter through Windows XP; then follow the instructions in Chapter 7 to use ACU’s diagnostic tools.SecurityStatic WEP Yes YesLEAP authentication with dynamic WEP No YesHost-based EAP authentication with static or dynamic WEP Yes YesDiagnostics Status screen Limited ExtensiveStatistics screen (transmit & receive) No YesSite survey tool No YesRF link test tool No YesLink status meter (graphical display) No YesTable 3-3 Comparison of Windows XP and ACU Client Adapter Features (continued)Feature Windows XP ACU

3-24Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 3 Installing the Client AdapterSelecting Among Several Installed Client AdaptersSelecting Among Several Installed Client AdaptersIf more than one client adapter is installed in your computer, follow the instructions below to specify the one for which you want to set up profiles in ACU.Step 1 Double-click the Aironet Client Utility (ACU) icon on your desktop or double-click My Computer > Control Panel > Aironet Client Utility to open ACU. The Select A Wireless LAN Adapter Card screen appears (see Figure 3-8).Note The Select A Wireless LAN Adapter Card screen appears when you start ACU if more than one card is inserted in your computer or no cards are inserted but more than one card is installed.Figure 3-8 Select A Wireless LAN Adapter Card ScreenStep 2 Select the card you wish to configure from the list of available cards and click OK.Step 3 Go to Chapter 4 to create profiles for this card.

5-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting System ParametersPower Save Mode Sets your client adapter to its optimum power consumption setting.Options: CAM, Max PSP, or Fast PSPDefault: CAM (Constantly Awake Mode)Power Save Mode DescriptionCAM (Constantly Awake Mode) Keeps the client adapter powered up continuously so there is little lag in message response time.Consumes the most power but offers the highest throughput. Is recommended for desktop computers and devices that use AC power.Max PSP (Max Power Savings) Causes the access point to buffer incoming messages for the client adapter, which wakes up periodically and polls the access point to see if any buffered messages are waiting for it. The adapter can request each message and then go back to sleep.Conserves the most power but offers the lowest throughput. Is recommended for devices for which power consumption is the ultimate concern (such as small battery-powered devices).Note When you set Max PSP mode and close ACU, the following message appears the next time you open ACU: “Maximum Power Save Mode will be temporarily disabled while you are running this application.” While ACU is open, Fast PSP mode is active. When you close ACU, the card returns to Max PSP mode.Fast PSP (Power Save Mode) Switches between PSP mode and CAM mode, depending on network traffic. This mode switches to CAM when retrieving a large number of packets and switches back to PSP after the packets have been retrieved.Is recommended when power consumption is a concern but you need greater throughput than that allowed by Max PSP.Table 5-2 System Parameters (continued) Parameter Description

5-7Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting RF Network ParametersSetting RF Network ParametersThe RF Network screen (see Figure 5-2) enables you to set parameters that control how and when the client adapter transmits and receives data. To access this screen, select the RF Network tab from the Properties screens.Figure 5-2 RF Network Screen

5-8Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting RF Network ParametersTable 5-3 lists and describes the client adapter’s RF network parameters. Follow the instructions in the table to change any parameters.Table 5-3 RF Network ParametersParameter DescriptionData Rate Specifies the rate at which your client adapter should transmit or receive packets to or from access points (in infrastructure mode) or other clients (in ad hoc mode).Auto Rate Selection is recommended for infrastructure mode; setting a specific data rate is recommended for ad hoc mode.Options: Auto Rate Selection, 1 Mbps Only, 2 Mbps Only, 5.5 Mbps Only, or 11 Mbps Only (2.4-GHz client adapters);Auto Rate Selection, 6 Mbps Only, 9 Mbps Only, 12 Mbps Only, 18 Mbps Only, 24 Mbps Only, 36 Mbps Only, 48 Mbps Only, or 54 Mbps Only (5-GHz client adapters)Default: Auto Rate SelectionData RateDescription2.4-GHz Client Adapters 5-GHz Client AdaptersAuto Rate Selection Auto Rate Selection Uses the 11-Mbps (for 2.4-GHz client adapters) or 54-Mbps (for 5-GHz client adapters) data rate when possible but drops to lower rates when necessary.1 Mbps Only 6 Mbps Only Offers the greatest range but the lowest throughput.2 Mbps Only and 5.5 Mbps Only9 Mbps Only to 48 Mbps OnlyProgressively offers less range but greater throughput than the 1 Mbps Only (for 2.4-GHz client adapters) or 6 Mbps Only (for 5-GHz client adapters) option.11 Mbps Only 54 Mbps Only Offers the greatest throughput but the lowest range.Note Your client adapter’s data rate must be set to Auto Rate Selection or must match the data rate of the access point (in infrastructure mode) or the other clients (in ad hoc mode) with which it is to communicate. Otherwise, your client adapter may not be able to associate to them.

5-9Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting RF Network ParametersUse Short Radio Headers Checking this check box sets your client adapter to use short radio headers. However, the adapter can use short radio headers only if the access point is also configured to support them and is using them. If any clients associated to an access point are using long headers, then allclients in that cell must also use long headers, even if both this client and the access point have short radio headers enabled.Short radio headers improve throughput performance; long radio headers ensure compatibility with clients and access points that do not support short radio headers.Default: CheckedNote This parameter is available only for 2.4-GHz client adapters.Note This parameter is referred to as Preambles on the access point screens.World Mode Checking this check box enables the client adapter to adopt the maximum transmit power level and the frequency range of the access point to which it is associated, provided the access point is also configured for world mode. This parameter is available only in infrastructure mode and is designed for users who travel between countries and want their client adapters to associate to access points in different regulatory domains.Default: UncheckedNote This parameter is available only for 2.4-GHz client adapters.Note When World Mode is enabled, the client adapter is limited to the maximum transmit power level allowed by the country of operation’s regulatory agency.Scan For A Better Access Point Checking this check box causes the client to look for a better access point if the signal strength of its associated access point is less than the specified value after the specified time and to switch associations if it finds one.Example: If the default values of 20 seconds and 50% are used, the client begins monitoring the strength of the signal received from its associated access point 20 seconds after becoming associated. The monitoring continues once per second. If the client detects a signal strength reading below 50%, it scans for a better access point.Range: 5 to 255 seconds; 0 to 75% signal strengthDefaults:Checked, 20 seconds, 50% signal strengthNote The ability to specify the time and signal strength is available in ACU version 6.1 or greater, which is included in Install Wizard version 1.1 or greater.Table 5-3 RF Network Parameters (continued)Parameter Description

5-10Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting RF Network ParametersChannel Specifies the frequency that your client adapter will use as the channel for communications. These channels conform to the IEEE 802.11 Standard for your regulatory domain.•In infrastructure mode, this parameter is set automatically and cannot be changed. The client adapter listens to the entire spectrum, selects the best access point to associate to, and uses the same frequency as that access point.•In ad hoc mode, the channel of the client adapter must be set to match the channel used by the other clients in the wireless network. If the client adapter does not find any other ad hoc adapters, this parameter specifies the channel with which the adapter will start its cell.Range: Dependent on client adapter radio and regulatory domainExample for 2.4-GHz client adapters:1 to 11 (2412 to 2462 MHz) in North AmericaExample for 5-GHz client adapters:36, 40, 44, 48, 52, 56, 60, and 64 (5180, 5200, 5220, 5240, 5260, 5280, 5300, and 5320 MHz) in North AmericaDefault: Dependent on client adapter radio and regulatory domainExample for 2.4-GHz client adapters:6 (2437 MHz) in North AmericaExample for 5-GHz client adapters:36 (5180 MHz) in North AmericaNote Refer to Appendix D for a list of channel identifiers, channel center frequencies, and regulatory domains for each channel.Table 5-3 RF Network Parameters (continued)Parameter Description

5-11Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting RF Network ParametersTransmit Power Defines the power level at which your client adapter transmits. This value must not be higher than that allowed by your country’s regulatory agency (FCC in the U.S., DOC in Canada, ETSI in Europe, MKK in Japan, etc.).Options: Dependent on the power table programmed into the client adapter; see the table belowDefault: The maximum power level programmed into the client adapter and allowed by your country’s regulatory agencyPossible Power Levels Client Adapter Type30 mW or 1 mW 340 series PC cards30 mW, 15 mW, 5 mW, or1 mW 340 series LM cards and PCI cards100 mW, 50 mW, 30 mW, 20 mW, 5 mW, or 1 mW 350 series client adapters20 mW, 10 mW, or 5 mW PC-Cardbus cardNote Reducing the transmit power level conserves battery power but decreases radio range.Note When World Mode is enabled, the client adapter is limited to the maximum transmit power level allowed by the country of operation’s regulatory agency.Note If you are using an older version of a 340 or 350 series client adapter, your power level options may be different than those listed here.Table 5-3 RF Network Parameters (continued)Parameter Description

5-12Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting RF Network ParametersClear Channel Assessment Specifies the method that determines whether the channel on which your client adapter will operate is clear prior to the transmission of data.Options: Firmware Default (XXX), Carrier/Correlation (Car/Cor), Energy Detect (ED), or ED or Car/CorDefault: Firmware Default (XXX)Method DescriptionFirmware Default (XXX) The Clear Channel Assessment (CCA) mechanism will report that the channel is busy based on the default value of the client adapter’s firmware. The firmware’s CCA default value is shown in parentheses.Note The CCA default value for PCM, LMC, and PCI card firmware is Car/Cor; the default value for mini PCI card firmware is ED.Carrier/Correlation (Car/Cor) The CCA mechanism will report that the channel is busy upon detection of a direct-sequence spread spectrum (DSSS) signal. This signal may be above or below the ED threshold.Energy Detect (ED) The CCA mechanism will report that the channel is busy upon detection of any energy above the ED threshold.ED or Car/Cor The CCA mechanism will report that the channel is busy upon detection of a DSSS signal or any energy above the ED threshold.Note This parameter is available only for 2.4-GHz client adapters.Table 5-3 RF Network Parameters (continued)Parameter Description

5-14Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Advanced Infrastructure ParametersSetting Advanced Infrastructure ParametersNote You can set advanced infrastructure parameters only if your client adapter has been set to operate in an infrastructure network. See the Network Type parameter in Table 5-2.The Advanced (Infrastructure) screen (see Figure 5-3) enables you to set parameters that control how the client adapter operates within an infrastructure network. To access this screen, select the Advanced (Infrastructure) tab from the Properties screens.Figure 5-3 Advanced (Infrastructure) Screen

5-15Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Advanced Infrastructure ParametersTable 5-4 lists and describes the client adapter’s advanced infrastructure parameters. Follow the instructions in the table to change any parameters.Table 5-4 Advanced (Infrastructure) ParametersParameter DescriptionAntenna Mode (Receive) Specifies the antenna that your client adapter uses to receive data.•PC card—The PC card’s integrated, permanently attached antenna operates best when used in diversity mode. Diversity mode allows the card to use the better signal from its two antenna ports.Options: Diversity (Both), Primary Antenna Only, Secondary Antenna OnlyDefault: Diversity (Both)•LM card—The LM card is shipped without an antenna; however, an antenna can be connected through the card’s external connector. If a snap-on antenna is used, diversity mode is recommended. Otherwise, select the mode that corresponds to the antenna port to which the antenna is connected.Options: Diversity (Both), Primary Antenna Only, Secondary Antenna OnlyDefault: Diversity (Both)•PCI card—The PCI card must use the Primary Antenna Only option.Default: Primary Antenna Only•Mini PCI card—The mini PCI card, which can be used with one or two antennas, operates best in diversity mode. Diversity mode allows the card to use the better signal from its two antenna connectors.Options: Diversity (Both), Primary Antenna Only, Secondary Antenna OnlyDefault: Diversity (Both)Note This parameter is available only for 2.4-GHz client adapters.Note The Primary Antenna Only and Secondary Antenna Only options were formerly named Right Antenna Only and Left Antenna Only, respectively.Antenna Mode (Transmit) Specifies the antenna that your client adapter uses to transmit data. See the Antenna Mode (Receive) parameter above for information on the options available for your client adapter.Note This parameter is available only for 2.4-GHz client adapters.

5-17Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Advanced Ad Hoc ParametersSetting Advanced Ad Hoc ParametersNote You can set advanced ad hoc parameters only if your client adapter has been set to operate in an ad hoc network. See the Network Type parameter in Table 5-2.The Advanced (Ad Hoc) screen (see Figure 5-4) enables you to set parameters that control how the client adapter operates within an ad hoc network. To access this screen, select the Advanced (Ad Hoc) tab from the Properties screens.Figure 5-4 Advanced (Ad Hoc) Screen

5-18Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Advanced Ad Hoc ParametersTable 5-5 lists and describes the client adapter’s advanced ad hoc parameters. Follow the instructions in the table to change any parameters.Table 5-5 Advanced (Ad Hoc) ParametersParameter DescriptionAntenna Mode (Receive) Specifies the antenna that your client adapter uses to receive data.•PC card—The PC card’s integrated, permanently attached antenna operates best when used in diversity mode. Diversity mode allows the card to use the better signal from its two antenna ports.Options: Diversity (Both), Primary Antenna Only, Secondary Antenna OnlyDefault: Diversity (Both)•LM card—The LM card is shipped without an antenna; however, an antenna can be connected through the card’s external connector. If a snap-on antenna is used, diversity mode is recommended. Otherwise, select the mode that corresponds to the antenna port to which the antenna is connected.Options: Diversity (Both), Primary Antenna Only, Secondary Antenna OnlyDefault: Diversity (Both)•PCI card—The PCI card must use the Primary Antenna Only option.Default: Primary Antenna Only•Mini PCI card—The mini PCI card, which can be used with one or two antennas, operates best in diversity mode. Diversity mode allows the card to use the better signal from its two antenna connectors.Options: Diversity (Both), Primary Antenna Only, Secondary Antenna OnlyDefault: Diversity (Both)Note This parameter is available only for 2.4-GHz client adapters.Note The Primary Antenna Only and Secondary Antenna Only options were formerly named Right Antenna Only and Left Antenna Only, respectively.Antenna Mode (Transmit) Specifies the antenna that your client adapter uses to transmit data. See the Antenna Mode (Receive) parameter above for information on the options available for your client adapter.Note This parameter is available only for 2.4-GHz client adapters.

5-19Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Advanced Ad Hoc ParametersRTS Threshold Specifies the size of the data packet that the low-level RF protocol issues to a request-to-send (RTS) packet.Setting this parameter to a small value causes RTS packets to be sent more often. When this occurs, more of the available bandwidth is consumed and the throughput of other network packets is reduced, but the system is able to recover faster from interference or collisions, which may be caused from a high multipath environment characterized by obstructions or metallic surfaces.Range: 0 to 2312Default: 2312Note Refer to the IEEE 802.11 Standard for more information on the RTS/CTS mechanism.RTS Retry Limit Specifies the number of times the client adapter resends a request-to-send (RTS) packet if it does not receive a clear-to-send (CTS) packet from the previously sent RTS packet.Setting this parameter to a large value decreases the available bandwidth whenever interference is encountered but makes the system more immune to interference and collisions, which may be caused from a high multipath environment characterized by obstructions or metallic surfaces.Range: 1 to 128Default: 16 (2.4-GHz client adapters) or 32 (5-GHz client adapters)Note Refer to the IEEE 802.11 Standard for more information on the RTS/CTS mechanism.Wake Duration (Kµs) Specifies the amount of time following a beacon that the client adapter stays awake to receive announcement traffic indication message (ATIM) packets, which are sent to the adapter to keep it awake until the next beacon.Refer to the Power Save Mode parameter in Table 5-2.Range: 0 Kµs (in CAM mode); 5 to 60 Kµs (in Max PSP or Fast PSP mode)Default: 5 KµsNote If your client adapter is set to CAM mode, you must set the wake duration to 0 Kµs. If your client adapter is set to Max PSP or Fast PSP mode, you must set the wake duration to a minimum of 5 Kµs.Note Kµs is a unit of measurement in software terms. K = 1024,µ = 10-6, and s = seconds, so Kµs = .001024 seconds, 1.024 milliseconds, or 1024 microseconds.Table 5-5 Advanced (Ad Hoc) Parameters (continued)Parameter Description

5-23Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersNote If the LEAP security module was not selected during installation, the LEAP option is unavailable in ACU. If you want to be able to enable and disable LEAP, you must run the installation program again and select LEAP.•Host Based EAP—Selecting this option enables you to use any 802.1X authentication type for which your operating system has support. For example, if your operating system uses the Microsoft 802.1X supplicant, it provides native support for EAP-TLS authentication and general support for PEAP and EAP-SIM authentication.Note To use EAP-TLS, PEAP, or EAP-SIM authentication, you must install the Microsoft 802.1X supplicant, ACU, and the PEAP or EAP-SIM security module; configure your client adapter using ACU; enable the authentication type in Windows; and enable Network-EAP on the access point.–EAP-TLS—EAP-TLS is enabled or disabled through the operating system and uses a dynamic session-based WEP key, which is derived from the client adapter and RADIUS server, to encrypt data. Once enabled, a few configuration parameters must be set within the operating system.RADIUS servers that support EAP-TLS include Cisco Secure ACS version 3.0 or greater and Cisco Access Registrar version 1.8 or greater.Note EAP-TLS requires the use of a certificate. Refer to Microsoft’s documentation for information on downloading and installing the certificate.–Protected EAP (or PEAP)—PEAP authentication is designed to support One-Time Password (OTP), Windows NT or 2000 domain, and LDAP user databases over a wireless LAN. It is based on EAP-TLS authentication but uses a password or PIN instead of a client certificate for authentication. PEAP is enabled or disabled through the operating system and uses a dynamic session-based WEP key, which is derived from the client adapter and RADIUS server, to encrypt data. If your network uses an OTP user database, PEAP requires you to enter either a hardware token password or a software token PIN to start the EAP authentication process and gain access to the network. If your network uses a Windows NT or 2000 domain user database or an LDAP user database (such as NDS), PEAP requires you to enter your username, password, and domain name in order to start the authentication process.RADIUS servers that support PEAP authentication include Cisco Secure ACS version 3.1 or greater.Note Service Pack 1 for Windows XP and the Microsoft 802.1X supplicant for Windows 2000 include Microsoft’s PEAP supplicant, which supports a Windows username and password only and does not interoperate with Cisco’s PEAP supplicant. To use Cisco’s PEAP supplicant, install the Install Wizard file after Service Pack 1 for Windows XP or the Microsoft 802.1X supplicant for Windows 2000. Otherwise, Cisco’s PEAP supplicant is overwritten by Microsoft’s PEAP supplicant.

5-25Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersRefer to the “Enabling LEAP” section on page 5-31 for instructions on enabling LEAP or to the “Enabling Host-Based EAP” section on page 5-34 for instructions on enabling EAP-TLS, PEAP, or EAP-SIM.Note Refer to the IEEE 802.11 Standard for more information on 802.1X authentication and to the following URL for additional information on RADIUS servers: http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/secur_c/scprt2/scrad.htmAdditional WEP Key Security FeaturesThe three security features discussed in this section (MIC, TKIP, and broadcast key rotation) are designed to prevent sophisticated attacks on your wireless network’s WEP keys. These features do not need to be enabled on the client adapter; they are supported automatically in the firmware and driver versions included in the Install Wizard file. However, they must be enabled on the access point.Note Access point firmware version 11.10T or greater is required to enable these security features. Refer to the documentation for your access point for instructions on enabling these security features.Message Integrity Check (MIC)MIC prevents bit-flip attacks on encrypted packets. During a bit-flip attack, an intruder intercepts an encrypted message, alters it slightly, and retransmits it, and the receiver accepts the retransmitted message as legitimate. The MIC adds a few bytes to each packet to make the packets tamper-proof.The Status screen indicates if MIC is being used, and the Statistics screen provides MIC statistics.Note If you enable MIC on the access point, your client adapter’s driver must support these features; otherwise, the client cannot associate.Temporal Key Integrity Protocol (TKIP)This feature, also referred to as WEP key hashing, defends against an attack on WEP in which the intruder uses the initialization vector (IV) in encrypted packets to calculate the WEP key. TKIP removes the predictability that an intruder relies on to determine the WEP key by exploiting IVs. It protects both unicast and broadcast WEP keys.Note If you enable TKIP on the access point, your client adapter’s firmware must support these features; otherwise, the client cannot associate.Broadcast Key RotationEAP authentication provides dynamic unicast WEP keys for client devices but uses static broadcast, or multicast, keys. When you enable broadcast WEP key rotation, the access point provides a dynamic broadcast WEP key and changes it at the interval you select. When you enable this feature, only wireless client devices using LEAP, EAP-TLS, PEAP, or EAP-SIM authentication can associate to the access point. Client devices using static WEP (with open or shared key authentication) cannot associate.

5-27Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersNote If the Microsoft 802.1X supplicant is installed on your computer, you must disable one or two Windows parameters in order for this feature to operate correctly. Refer to Step 10 in the “Enabling LEAP” section for details.Synchronizing Security FeaturesIn order to use any of the security features discussed in this section, both your client adapter and the access point to which it will associate must be set appropriately. Table 5-6 indicates the client and access point settings required for each security feature. This chapter provides specific instructions for enabling the security features on your client adapter. Refer to the documentation for your access point for instructions on enabling any of these features on the access point.Table 5-6 Client and Access Point Security SettingsSecurity Feature Client Setting Access Point SettingStatic WEP with open authentication Create a WEP key and enable Use Static WEP Keys and Open AuthenticationSet up and enable WEP and enable Open AuthenticationStatic WEP with shared key authentication Create a WEP key and enable Use Static WEP Keys and Shared Key AuthenticationSet up and enable WEP and enable Shared Key AuthenticationLEAP authentication Enable LEAP Set up and enable WEP and enable Network-EAPEAP-TLS authenticationIf using ACU to configure card Enable Host Based EAP and Use Dynamic WEP Keys in ACU and select Enable network access control using IEEE 802.1X and Certificates (or Smart Card or Other Certificate) as the EAP Type in WindowsSet up and enable WEP and enable Network-EAPIf using Windows XP to configure card Select Enable network access control using IEEE 802.1X and Smart Card or other Certificate as the EAP TypeSet up and enable WEP and enable Require EAP and Open AuthenticationPEAP authenticationIf using ACU to configure card Enable Host Based EAP and Use Dynamic WEP Keys in ACU and select Enable network access control using IEEE 802.1X and PEAP as the EAP Type in Windows Set up and enable WEP and enable Network-EAPIf using Windows XP to configure card Select Enable network access control using IEEE 802.1X and PEAP as the EAP TypeSet up and enable WEP and enable Require EAP and Open Authentication

5-28Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Network Security ParametersEAP-SIM authenticationIf using ACU to configure card Enable Host Based EAP and Use Dynamic WEP Keys in ACU and select Enable network access control using IEEE 802.1X and SIM Authentication as the EAP Type in WindowsSet up and enable WEP with full encryption and enable Network-EAPIf using Windows XP to configure card Select Enable network access control using IEEE 802.1X and SIM Authentication as the EAP TypeSet up and enable WEP with full encryption and enable Require EAP and Open AuthenticationMIC No settings required; automatically enabled by the driver included in the Install Wizard fileSet up and enable WEP with full encryption, set MIC to MMH, and set Use Aironet Extensions to YesTKIP No settings required; automatically enabled by the firmware included in the Install Wizard fileSet up and enable WEP, set TKIP to Cisco, and set Use Aironet Extensions to YesBroadcast key rotation Enable LEAP, EAP-TLS, PEAP, or EAP-SIM and use the firmware included in the Install Wizard fileSet up and enable WEP and set Broadcast WEP Key Rotation Interval to any value other than zero (0)Reporting access points that fail LEAP authenticationNo settings required; automatically enabled in firmware version 5.02.20 or greaterNo settings required; automatically enabled in the following firmware versions: 12.00T or greater (340, 350, and 1200 series access points) or 12.2(4)JA or greater (1100 series access points)Fast secure roaming Enable LEAP and use firmware version 5.20.17 or greater Use firmware version 12.2(11)JA or greater, select a cipher suite, and enable open authentication with EAP and CCKMNote To allow both 802.1X clients and non-802.1X clients to use the SSID, enable optional CCKM.Table 5-6 Client and Access Point Security Settings (continued)Security Feature Client Setting Access Point Setting

5-32Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Network Security ParametersStep 2 Click Configure to the right of the Network Security Type drop-down box. The LEAP Settings screen appears (see Figure 5-6).Figure 5-6 LEAP Settings ScreenStep 3 Select one of the following LEAP username and password setting options:•Use Temporary User Name and Password—Requires you to enter the LEAP username and password each time the computer reboots in order to authenticate and gain access to the network.•Use Saved User Name and Password—Does not require you to enter a LEAP username and password each time the computer reboots. Authentication occurs automatically as needed using a saved username and password (which are registered with the RADIUS server).Note The Use Saved User Name and Password option is available only if the Allow Saved LEAP User Name and Password option was enabled (set to Yes) during installation.

5-36Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Network Security ParametersFigure 5-7 Wireless Network Connection Properties Screen (Authentication Tab) - Windows 2000 and XP OnlyStep 7 Check the Enable network access control using IEEE 802.1X check box.Step 8 Perform one of the following, depending on the authentication type you want to use:•If you are planning to use EAP-TLS, go to the “Enabling EAP-TLS” section below.•If you are planning to use PEAP, go to the “Enabling PEAP” section on page 5-39.•If you are planning to use EAP-SIM, go to the “Enabling EAP-SIM” section on page 5-41.Enabling EAP-TLSFollow the steps below to enable EAP-TLS.Step 1 For EAP type, select Certificates (on Windows 98, 98 SE, NT, or Me) or Smart Card or other Certificate (on Windows 2000 or XP).Step 2 Click Properties. The Certificate Properties screen (see Figure 5-8) or the Smart Card or other Certificate Properties screen appears (see Figure 5-9).

5-37Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersFigure 5-8 Certificate Properties Screen - Windows 98, 98 SE, NT, and Me OnlyFigure 5-9 Smart Card or other Certificate Properties Screen - Windows 2000 and XP Only

5-38Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Network Security ParametersStep 3 Select the Use a certificate on this computer option.Step 4 If your computer is running Windows 98, 98 SE, NT, or Me, make sure the Use simple certificate selection (Recommended) check box is selected.Step 5 Check the Validate server certificate check box if server certificate validation is required.Step 6 If you want to specify the name of the server to connect to, check the Connect to these servers or Connect only if server name ends with check box and enter the appropriate server name or server name suffix in the field below. Note If you enter a server name and the client adapter connects to a server that does not match the name you entered, you are prompted to accept or cancel the connection during the authentication process.Note If you leave this field blank, the server name is not verified, and a connection is established as long as the certificate is valid.Step 7 Perform one of the following:•If your computer is running Windows 98, 98 SE, NT, or Me, select the certificate authority from which the server certificate was downloaded in the Trusted Root Certification Authorities field.•If your computer is running Windows 2000 or XP, make sure that the name of the certificate authority from which the server certificate was downloaded appears in the Trusted root certificate authority field.Note If you leave this field blank, you are prompted to accept a connection to the root certification authority during the authentication process.Step 8 Click OK twice to save your settings. The configuration is complete.Step 9 Refer to Chapter 6 for instructions on authenticating using EAP-TLS.

5-39Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersEnabling PEAPFollow the steps below to enable PEAP.Step 1 For EAP type, select PEAP.Step 2 Click Properties. The PEAP Properties screen appears (see Figure 5-10).Figure 5-10 PEAP Properties ScreenStep 3 Check the Validate server certificate check box if server certificate validation is required (recommended).Step 4 If you want to specify the name of the server to connect to, check the Connect only if server name ends with check box and enter the appropriate server name suffix in the field below. Note If you enter a server name and the client adapter connects to a server that does not match the name you entered, you are prompted to accept or cancel the connection during the authentication process.Note If you leave this field blank, the server name is not verified, and a connection is established as long as the certificate is valid.

5-40Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Network Security ParametersStep 5 Make sure that the name of the certificate authority from which the server certificate was downloaded appears in the Trusted root certificate authority (CA) field. If necessary, click the arrow on the drop-down menu and select the appropriate name.Note If you leave this field blank, you are prompted to accept a connection to the root certification authority during the authentication process.Step 6 Check the Connect only if server is signed by specified trusted root CA check box if you want to ensure that the certificate server uses the trusted root certificate specified in the field above. This prevents the client from establishing connections to rogue access points.Step 7 Currently Generic Token Card is the only second phase EAP type available. Click Properties. The Generic Token Card Properties screen appears (see Figure 5-11).Figure 5-11 Generic Token Card Properties ScreenStep 8 Select either the Static Password (Windows NT/2000, LDAP) or the One Time Password option, depending on your user database.Step 9 Perform one of the following:•If you selected the Static Password (Windows NT/2000, LDAP) option in Step 8, go to Step 10.•If you selected the One Time Password option in Step 8, check one or both of the following check boxes to specify the type of tokens that will be supported for one-time passwords:–Support Hardware Token—A hardware token device obtains the one-time password. You must use your hardware token device to obtain the one-time password and enter the password when prompted for your user credentials.–Support Software Token—The PEAP supplicant works with a software token program to retrieve the one-time password. You have to enter only the PIN, not the one-time password. If you check this check box, you must also select from the Supported Type drop-down box the software token software that is installed on the client (such as Secure Computing SofToken Version 1.3, Secure Computing SofToken II 2.0, or RSA SecurID Software Token v 2.5), and if Secure Computing SofToken Version 1.3 is selected, you must locate the software program path using the Browse button.

5-41Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersNote The SofToken Program Path field is unavailable if a software token program other than Secure Computing SofToken Version 1.3 is selected.Step 10 Click OK three times to save your settings. The configuration is complete.Step 11 Refer to Chapter 6 for instructions on authenticating using PEAP.Enabling EAP-SIMFollow the steps below to enable EAP-SIM.Step 1 For EAP type, select SIM Authentication.Step 2 Click Properties. The SIM Authentication Properties screen appears (see Figure 5-12).Figure 5-12 SIM Authentication Properties ScreenStep 3 To access any resources (data or commands) on the SIM, the EAP-SIM supplicant must provide a valid PIN to the SIM card, which must match the PIN stored on the SIM. Select one of the following options to specify how the EAP-SIM supplicant should handle the SIM card’s PIN:•Ask for my PIN once after I turn my computer on (recommended)—The software does not permanently store the PIN. It prompts you for the PIN once, on the first authentication of every session, where a session is defined as the time between power-up and shutdown or reboot.•Ask for my PIN every time the network asks for authentication—The software never stores the PIN; it prompts you for the PIN every time an EAP-SIM authentication is performed. This option is not recommended if your client will be roaming between access points or if session timeouts are implemented (such as for accounting and security purposes).

5-43Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 5 Configuring the Client Adapter Setting Network Security ParametersStep 4 Click the Authentication tab.Note In Service Pack 1 for Windows XP, the Authentication tab has moved from its previous location. To access it, click the Wireless Networks tab, select the network that you are configuring in the Preferred network list, and click Properties.Step 5 Uncheck the Enable network access control using IEEE 802.1X check box.Step 6 Click OK.

5-44Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 5 Configuring the Client AdapterSetting Network Security Parameters

6-4Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 6 Using EAP AuthenticationUsing LEAP with the Windows Username and PasswordIf the authentication attempt fails, an error message appears after the LEAP timeout period has expired. Refer to the “LEAP Authentication Error Messages” section on page 10-18 for the necessary action to take.After a Reboot or LogonAfter your computer reboots or you log on, follow the steps below to LEAP authenticate.Step 1 When the Windows login screen appears (see Figure 6-2 and Figure 6-3), enter your Windows username and password and click OK. The domain name is optional.Note If your computer is running Windows NT, 2000, or XP and has Novell Client 32 software installed, a separate LEAP login screen appears before the Novell login screen. If this occurs, enter your Windows and Novell username and password in the login screens and click OK.Figure 6-2 Windows Login Screen (Windows 98, 98 SE, and Me)Figure 6-3 Windows Login Screen (Windows NT)

6-7Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 6 Using EAP Authentication Using LEAP with an Automatically Prompted LoginAfter a Reboot or LogonAfter your computer reboots or you log on, follow the steps below to LEAP authenticate.Step 1 When the LEAP login screen appears (see Figure 6-5), enter your LEAP username and password and click OK. The domain name is optional.Figure 6-5 LEAP Login ScreenNote The LEAP login screen shown above appears on computers running Windows NT, 2000, or XP. The LEAP login screen looks slightly different on computers running other Windows operating systems.Note The LEAP login screen should appear before the Windows login screen on computers running Windows 98, 98 SE, or Me. If the Windows screen appears first, follow the instructions in the “LEAP Login Screen Does Not Appear Before Windows Login Screen (Windows 98, 98 SE, and Me Only)” section on page 10-13. On computers running Windows NT, 2000, or XP, the LEAP login screen appears after the Windows login screen.The LEAP Authentication Status screen appears.Step 2 If your client adapter authenticates, the screen shows that each stage was successful and then disappears. ACM now shows Authenticated, and the Server Based Authentication field on the ACU Status screen shows LEAP Authenticated.If the authentication attempt fails, an error message appears after the LEAP timeout period has expired. Refer to the “LEAP Authentication Error Messages” section on page 10-18 for the necessary action to take.Step 3 When the network login screen appears (see Figure 6-6 and Figure 6-7), enter your network username and password and click OK.

6-8Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 6 Using EAP AuthenticationUsing LEAP with an Automatically Prompted LoginNote Figure 6-6 shows an example network login screen that may appear on computers running Windows 98, 98 SE, and Me. Your screen may look different. Figure 6-7 shows the network login screen that appears on Windows 2000 systems. The login screen looks slightly different on computers running Windows NT and XP.Figure 6-6 Network Login Screen (Windows 98, 98 SE, and Me)Figure 6-7 Network Login Screen (Windows 2000)

6-11Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 6 Using EAP Authentication Using LEAP with a Manually Prompted LoginFigure 6-9 Commands Drop-Down MenuWhen the LEAP login screen appears (see Figure 6-8), enter your LEAP username and password and click OK. The domain name is optional.Step 2 The LEAP Authentication Status screen appears. If your client adapter authenticates, the screen shows that each stage was successful and then disappears. ACM now shows Authenticated, and the Server Based Authentication field on the ACU Status screen shows LEAP Authenticated.If the authentication attempt fails, an error message appears after the LEAP timeout period has expired. Refer to the “LEAP Authentication Error Messages” section on page 10-18 for the necessary action to take.After a Reboot, Logon, or Card InsertionAfter your computer reboots, you log on, or you eject and reinsert the client adapter, the adapter does not automatically attempt to authenticate. You must manually invoke the authentication process. To do so, follow the steps below.Step 1 If you rebooted your computer or logged on, complete your standard Windows login.Step 2 Open ACU.Step 3 Select the Manual LEAP Login option from the Commands drop-down menu (see Figure 6-10).

6-12Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 6 Using EAP AuthenticationUsing LEAP with a Manually Prompted LoginFigure 6-10 Commands Drop-Down MenuStep 4 When the LEAP login screen appears (see Figure 6-11), enter your LEAP username and password and click OK. The domain name is optional.Figure 6-11 LEAP Login ScreenNote The LEAP login screen shown above appears on computers running Windows NT, 2000, or XP. The LEAP login screen looks slightly different on computers running other Windows operating systems.

6-17Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 6 Using EAP Authentication Using PEAPStep 7 Click OK. The client adapter should now EAP authenticate. To verify authentication, double-click My Computer,Control Panel, and Network Connections. The status appears to the right of your Wireless Network Connection. Click View and Refresh to obtain the current status. If the client adapter is authenticated, the status reads Authentication succeeded.Step 8 If you also have a locally cached Windows password, you must change it manually in Windows to synchronize your passwords. To do so, press Ctrl-Alt-Delete, select Change Password, and enter your old password once and your new password twice.OTP Databases OnlyStep 1 If your computer is running Windows XP, a pop-up message appears above the Windows system tray informing you that you need to select a certificate or other credentials to access the network. Click this message.Step 2 If a message appears indicating the root certification authority for the server’s certificate and it is the correct certification authority, click OK to accept the connection. Otherwise, click Cancel.Step 3 If a message appears indicating the server to which your client adapter is connected and it is the correct server to connect to, click OK to accept the connection. Otherwise, click Cancel.Step 4 Perform one of the following:•If your computer is running Windows 2000, the One Time Password screen appears (see Figure 6-13).•If your computer is running Windows XP, a pop-up message appears above the Windows system tray prompting you to process your logon information for your wireless network. Click this message. The One Time Password screen appears (see Figure 6-13).Figure 6-13 One Time Password ScreenStep 5 Enter your PEAP authentication username in the User Name field.

6-18Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 6 Using EAP AuthenticationUsing PEAPStep 6 Select either the Hardware Token or Software Token option. If you select the Software Token option, the Password field on the One Time Password screen changes to the PIN field.Note The Hardware Token and Software Token options are available only if you selected both of them on the Generic Token Card Properties screen during configuration. Otherwise, only the option you selected will be available.Step 7 Enter either your hardware token password or your software token PIN.Step 8 Click OK. The client adapter should now EAP authenticate. To verify authentication, double-click My Computer,Control Panel, and Network Connections. The status appears to the right of your Wireless Network Connection. Click View and Refresh to obtain the current status. If the client adapter is authenticated, the status reads Authentication succeeded.After Your Password Expires (Windows NT or 2000 Domain Databases Only)If you are using a Windows NT or 2000 domain database with PEAP and the password for your current user ID expires, follow the steps below to change your password.Step 1 When the Change Password screen appears (see Figure 6-14) to indicate that your password has expired, enter your old password in the Old Password field.Figure 6-14 Change Password ScreenStep 2 Enter your new password in both the New Password and Confirm New Password fields.Note The password is also changed in the Windows NT or 2000 domain user database.Step 3 Click OK. The client adapter should authenticate using your new password. To verify authentication, double-click My Computer,Control Panel, and Network Connections. The status appears to the right of your Wireless Network Connection. Click View and Refresh to obtain the current status. If the client adapter is authenticated, the status reads Authentication succeeded.

6-22Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 6 Using EAP AuthenticationRestarting the Authentication Process

CHAPTER7-1Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-067Performing DiagnosticsThis chapter explains how to use ACU to perform user-level diagnostics.The following topics are covered in this chapter:•Overview of ACU Diagnostic Tools, page 7-2•Setting Parameters that Affect ACU Diagnostic Tools, page 7-3•Viewing the Current Status of Your Client Adapter, page 7-4•Viewing Statistics for Your Client Adapter, page 7-11•Viewing the Link Status Meter, page 7-16•Running an RF Link Test, page 7-17

7-2Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsOverview of ACU Diagnostic ToolsOverview of ACU Diagnostic ToolsIn addition to enabling you to configure your client adapter for use in various types of networks, ACU provides tools that enable you to assess the performance of the client adapter and other devices on the wireless network. ACU diagnostic tools perform the following functions:•Display your client adapter’s current status and configured settings•Display statistics pertaining to your client adapter’s transmission and reception of data•Display a graphical image of your client adapter’s RF link•Run an RF link test to assess the performance of the RF link between your client adapter and its associated access pointTable 7-1 enables you to quickly locate instructions for using each of the diagnostic tools.Table 7-1 Locating Diagnostic InstructionsDiagnostic Tool Page NumberStatus 7-4Statistics 7-11Link status meter 7-16RF link test 7-17

7-3Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Setting Parameters that Affect ACU Diagnostic ToolsSetting Parameters that Affect ACU Diagnostic ToolsSeveral parameters affect the operation of ACU diagnostic tools. Follow the steps below to set these parameters.Step 1 Open ACU.Step 2 Click the Preferences icon or select Preferences from the Options drop-down menu. The Aironet Client Utility Preferences screen appears (see Figure 7-1).Figure 7-1 Aironet Client Utility Preferences Screen

7-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Viewing the Current Status of Your Client AdapterFigure 7-2 Status Screen (with Signal Strength as a Percentage)Figure 7-3 Bottom of Status Screen (with Signal Strength in dBm)

7-8Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsViewing the Current Status of Your Client AdapterAntenna Selection The antenna mode that your client adapter is currently using.Value: Diversity, Primary Only, Secondary Only(Primary Only is the only option available for PCI client adapters)Note This setting appears only for 2.4-GHz client adapters.Note The Primary Only and Secondary Only values were formerly named Right Only and Left Only, respectively. Refer to the Antenna Mode (Receive) and Antenna Mode (Transmit) parameters in Table 5-4 and Table 5-5 for information on setting the antenna mode.Channel Set The regulatory domain for which your client adapter is currently configured, such as Americas. (For the Japan channel set, the Call ID is also displayed.) This value is not user selectable.Note Refer to Appendix D for a list of channel identifiers, channel center frequencies, and regulatory domains for each channel.Client Name The name your client adapter uses when it associates to an access point.Note Refer to the Client Name parameter in Table 5-2 for information on setting the client name.MAC Address The MAC address assigned to your client adapter at the factory.IP Address The IP address of your client adapter.Current Link Speed The rate at which your client adapter is currently transmitting data packets.Value: 1, 2, 5.5, or 11 Mbps (2.4-GHz client adapters);6, 9, 12, 18, 24, 36, 48, or 54 Mbps (5-GHz client adapters)Data Rate The rate at which your client adapter has been configured to transmit or receive data packets.Value: 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, or Auto Rate Selection (2.4-GHz client adapters);6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24 Mbps, 36 Mbps,48 Mbps, 54 Mbps, or Auto Rate Selection (5-GHz client adapters)Note Refer to the Data Rate parameter in Table 5-3 for information on setting the client adapter’s data rate.Current Power Level The power level at which your client adapter is currently transmitting. The maximum level is dependent upon the radio installed in your client adapter and your country’s regulatory agency.Value: 1, 5, 15, or 30 mW (340 series client adapters);1, 5, 20, 30, 50, or 100 mW (350 series client adapters);5, 10, or 20 mW (5-GHz client adapters)Note Refer to the Transmit Power parameter in Table 5-3 for information on setting the client adapter’s power level.Table 7-3 Client Adapter Status (continued)Status Description

7-9Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Viewing the Current Status of Your Client AdapterAvailable Power Levels The power levels at which your client adapter is capable of transmitting. The maximum level is dependent upon the radio installed in your client adapter and your country’s regulatory agency.Value: 1, 5, 15, or 30 mW (340 series client adapters);1, 5, 20, 30, 50, or 100 mW (350 series client adapters);5, 10, or 20 mW (5-GHz client adapters)Note Refer to the Transmit Power parameter in Table 5-3 for information on the client adapter’s available power levels.Channel (Frequency) The frequency that your client adapter is currently using as the channel for communications.Value: Dependent on client adapter radio and regulatory domainNote Refer to the Channel parameter in Table 5-3 for information on selecting the frequency for your client adapter.Status The operational mode of your client adapter.Value: Error, Not Associated, Associated, Authenticating, Authenticated, Authentication Failed, or Ad Hoc ModeSSID The name of the network to which your client adapter is currently associated. Note Refer to the SSID1 parameter in Table 5-2 for information on the client adapter’s SSID.Network Type The type of network in which your client adapter is being used.Value: Infrastructure or Ad HocNote Refer to the Network Type parameter in Table 5-2 for information on setting the network type.Power Save Mode The client adapter’s current power consumption setting.Value: CAM, Max PSP, or Fast PSPNote Refer to the Power Save Mode parameter in Table 5-2 for information on setting the client adapter’s power save mode.Associated Access Point Name The name of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode, the access point was configured with a name, and Aironet Extensions are enabled (on access points running Cisco IOS release 12.2(4)JA or greater).Associated Access Point IP Address The IP address of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode, the access point was configured with an IP address, and Aironet Extensions are enabled (on access points running Cisco IOS release 12.2(4)JA or greater).Note If Aironet Extensions are disabled, the IP address of the associated access point is shown as 0.0.0.0.Table 7-3 Client Adapter Status (continued)Status Description

7-10Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsViewing the Current Status of Your Client AdapterAssociated Access Point MAC Address The MAC address of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode.Note This field displays the MAC address of the access point’s Ethernet port (for access points that do not run Cisco IOS) or the MAC address of the access point’s radio (for access points that run Cisco IOS). The MAC address of the Ethernet port on access points that run Cisco IOS is printed on a label on the back of the device.Beacon Period Specifies the duration between beacon packets, which are used to help clients find each other in ad hoc mode.Range: Approximately 20 to 999 milliseconds (ms)Note The beacon period is shown only if your client adapter is in ad hoc mode.Up Time (hh:mm:ss) The amount of time (in hours:minutes:seconds) that the client adapter has been receiving power. If the adapter has been running for more than 24 hours, the time is displayed in days, hours:minutes:seconds.Current Signal Strength The signal strength for all received packets. The higher the value and the more green the bar graph is, the stronger the signal.Range: 0 to 100% or –95 to –45 dBmCurrent Signal Quality (2.4-GHz client adapters) The signal quality for all received packets. The higher the value and the more green the bar graph is, the clearer the signal.Range: 0 to 100%Note This setting appears only for 2.4-GHz client adapters and only if you selected signal strength to be displayed as a percentage. See the Signal Strength Display Units parameter in Table 7-2for information.Current Noise Level (2.4-GHz client adapters) The level of background radio frequency energy in the 2.4-GHz band. The lower the value and the more green the bar graph is, the less background noise present.Range: –100 to –45 dBmNote This setting appears only for 2.4-GHz client adapters and only if you selected signal strength to be displayed in dBm. See the Signal Strength Display Units parameter in Table 7-2 for information.Table 7-3 Client Adapter Status (continued)Status Description

7-12Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsViewing Statistics for Your Client AdapterFigure 7-4 Statistics ScreenThe statistics are calculated as soon as your client adapter is started or the Reset button is selected and are continually updated at the rate specified by the Screen Update Timer. Instructions for changing the Screen Update Timer setting are provided in Table 7-2.Table 7-4 describes each statistic that is displayed for your client adapter.Table 7-4 Client Adapter StatisticsStatistic DescriptionReceive StatisticsMulticast Packets Received The number of multicast packets that were received successfully.Broadcast Packets Received The number of broadcast packets that were received successfully.Unicast Packets Received The number of unicast packets that were received successfully.Bytes Received The number of bytes of data that were received successfully.Beacons Received The number of beacon packets that were received successfully.Total Packets Received OK The number of all packets that were received successfully.Duplicate Packets Received The number of duplicate packets that were received successfully.

7-13Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Viewing Statistics for Your Client AdapterOverrun Errors The number of packets received when no receive buffers were available. These errors usually occur when the host does not read the received packets from the client adapter fast enough.PLCP CRC Errors The number of times the client adapter started to receive an 802.11 physical layer convergence protocol (PLCP) header but the rest of the packet was ignored due to a cyclic redundancy check (CRC) error in the header.Note CRC errors can be attributed to packet collisions caused by a dense population of client adapters, overlapping access point coverage on a channel, high multipath conditions from bounced signals, or the presence of other 2.4-GHz signals from devices such as microwave ovens, wireless handset phones, etc.PLCP Format Errors The number of times an 802.11 PLCP header was received with a valid CRC but the rest of the packet was ignored due to an unknown value in the header.PLCP Length Errors The number of times an 802.11 PLCP header was received but the rest of the packet was ignored due to an illegal header length.MAC CRC Errors The number of packets that had a valid 802.11 PLCP header but contained a CRC error in the data portion of the packet.Note CRC errors can be attributed to packet collisions caused by a dense population of client adapters, overlapping access point coverage on a channel, high multipath conditions from bounced signals, or the presence of other 2.4-GHz signals from devices such as microwave ovens, wireless handset phones, etc.Partial Packets Received The number of fragments that were discarded because the entire packet was not received successfully.SSID Mismatches The number of times the client adapter tried to associate to an access point but was unable to because the adapter’s SSID was not the same as the access point’s.AP Mismatches The number of times the client adapter tried to associate to an access point but was unable to because the access point was not the adapter’s specified access point.Note Refer to the Specified Access Point 1- 4 parameter in Table 5-4 for information on specifying access points.Data Rate Mismatches The number of times the client adapter tried to associate to an access point but was unable to because the adapter’s data rate was not supported by the access point.Note Refer to the Data Rate parameter in Table 5-3 for information on supported data rates.Authentication Rejects The number of times the client adapter tried to authenticate to an access point but was rejected.Table 7-4 Client Adapter Statistics (continued)Statistic Description

7-14Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsViewing Statistics for Your Client AdapterAuthentication Time-out The number of times the client adapter tried to authenticate to an access point but was unable to because the access point did not respond fast enough (timed out).Association Rejects The number of times the client adapter tried to associate to an access point but was rejected.Association Time-out The number of times the client adapter tried to associate to an access point but was unable to because the access point did not respond fast enough (timed out).Packets Aged The number of packets received successfully but discarded by the client adapter because either all fragments were not received within 10 seconds or the host did not read the packet from the adapter within 10 seconds.Packets MIC OK The number of packets that were received successfully with a valid message integrity check (MIC).Note This field is not displayed if MIC is not enabled on the access point.Packets No MIC The number of packets that were discarded due to no MIC being found.Note This field is not displayed if MIC is not enabled on the access point.Packets Incorrect MIC The number of packets that were discarded due to an incorrect MIC value. Note This field is not displayed if MIC is not enabled on the access point.Packets No MIC Seed The number of packets that were discarded due to no MIC seed being received.Note This field is not displayed if MIC is not enabled on the access point.Packets Wrong MIC Sequence The number of packets that were discarded due to the MIC sequence number being wrong.Note This field is not displayed if MIC is not enabled on the access point.Up Time (hh:mm:ss) The amount of time (in hours:minutes:seconds) since the Reset button was selected. If the client adapter has been running for more than 24 hours, the time is displayed in days, hours:minutes:seconds.Total Up Time (hh:mm:ss) The amount of time (in hours:minutes:seconds) that the client adapter has been receiving power. The total up time continues to increment even if the Reset button is selected. If the adapter has been running for more than 24 hours, the time is displayed in days, hours:minutes:seconds.Table 7-4 Client Adapter Statistics (continued)Statistic Description

7-15Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Viewing Statistics for Your Client AdapterTransmit StatisticsMulticast Packets Transmitted The number of multicast packets that were transmitted successfully.Broadcast Packets Transmitted The number of broadcast packets that were transmitted successfully.Unicast Packets Transmitted The number of unicast packets that were transmitted successfully.Bytes Transmitted The number of bytes of data that were transmitted successfully.Beacons Transmitted The number of beacon packets that were transmitted successfully (in ad hoc mode only).Ack Packets Transmitted The number of acknowledgment (Ack) packets that were transmitted in response to successfully received unicast packets.RTS Packets Transmitted The number of request-to-send (RTS) packets that were transmitted successfully.CTS Packets Transmitted The number of clear-to-send (CTS) packets that were transmitted in response to a successfully received RTS packet.Single Collisions The number of packets that had to be retransmitted once due to a collision.Multiple Collisions The number of packets that had to be retransmitted more than once due to additional collisions.Packets No Deferral The number of packets that were able to be transmitted immediately without being delayed due to energy detect or protocol deferral.Packets Deferred Protocol The number of packets that were delayed due to 802.11 protocol reasons (such as not enough time left to send the packet).Packets Deferred Energy Detect The number of packets that were delayed because RF energy was already detected. This condition is usually caused by another radio transmitting a packet or by some other RF source jamming the signal (such as a microwave oven).Packets Retry Long The number of normal data packets that were retransmitted.Packets Retry Short The number of request-to-send (RTS) packets that were retransmitted.Packets Max Retries The number of packets that failed to be transmitted successfully after exhausting the maximum number of retries.Packets Ack Received The number of transmitted packets that had their corresponding acknowledgment (Ack) packet received successfully.Packets No Ack Received The number of transmitted packets that did not have their corresponding Ack packet received successfully.Packets CTS Received The number of clear-to-send (CTS) packets that were received in response to an RTS packet.Table 7-4 Client Adapter Statistics (continued)Statistic Description

7-17Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Running an RF Link TestThe Link Status Meter screen provides a graphical display of the following:•Signal strength—The strength of the client adapter’s radio signal at the time packets are being received. It is displayed as a percentage along the vertical axis.•Signal quality—The quality of the client adapter’s radio signal at the time packets are being received. It is displayed as a percentage along the horizontal axis.The combined result of the signal strength and signal quality is represented by a diagonal line (see Figure 7-5). Where the line falls on the graphical display determines whether the RF link between your client adapter and its associated access point is poor, fair, good, or excellent. The name, IP address, and MAC address of the access point that is associated to your client adapter are indicated at the bottom of the display.Note The access point name and IP address are shown only if the client adapter is in infrastructure mode, the access point was configured with a name and an IP address, and Aironet Extensions are enabled (on access points running Cisco IOS release 12.2(4)JA or greater).Note The access point MAC address is shown only if the client adapter is in infrastructure mode. This field displays the MAC address of the access point’s Ethernet port (for access points that do not run Cisco IOS) or the MAC address of the access point’s radio (for access points that run Cisco IOS). The MAC address of the Ethernet port on access points that run Cisco IOS is printed on a label on the back of the device.Note ACU’s Status screen also shows signal strength and signal quality. However on the Status screen, these data are represented by histograms.If you want to see a recent history of the RF performance between your client adapter and its associated access point, check the Show History check box on the Aironet Client Utility Preferences screen. Black dots on the graphical display show the performance of the last 50 signals.Running an RF Link TestACU’s link test tool sends out pings to assess the performance of the RF link. The test is designed to be performed multiple times at various locations throughout your area and is run at the data rate set on ACU’s RF Network Properties screen (see the Data Rate parameter in Table 5-3). The results of the link test can be used to determine RF network coverage and ultimately the required number and placement of access points in your network. The test also helps you to avoid areas where performance is weak, thereby eliminating the risk of losing the connection between your client adapter and its associated access point.Because the link test operates above the RF level, it does more than test the RF link between two network devices. It also checks the status of wired sections of the network and verifies that TCP/IP and the proper drivers have been loaded.

7-19Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Running an RF Link TestStep 2 In the IP Address of Access Point field, enter the IP address of the access point or other wireless device with which you want to test the RF link.Step 3 You can set the link test to run until it has attempted to send a specific number of packets or to run until you stop it. Follow one of the steps below to determine how long the link test will run:•Select the number of packets that the link test should attempt to send. You can type a number in the Number of Packets field or use the slider to select this value. (The Number of Packets parameter is ignored if the Continuous Linktest check box is checked.)Range: 1 to 1000Default: 4•Check the Continuous Linktest check box to allow the link test to run continuously.Default: UncheckedStep 4 Select the size of the data packet that is to be sent to the access point. You can type a number in the Packet Size field or use the slider to select this value.Range: 64 to 2048Default: 100Note The Windows TCP/IP stack fragments (splits up) packets that are greater than 512 bytes. Therefore, the number of transmitted packets does not match the number of received packets (even if none are lost) if the packet size is greater than 512 bytes.Step 5 Click the Start button to run the link test. While the test is running, statistics are displayed and updated periodically.Figure 7-7 shows the Linktest screen with the signal strength values displayed as percentages, and Figure 7-8 shows the bottom of the same screen with the signal strength values displayed in dBm.

7-20Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsRunning an RF Link TestFigure 7-7 Linktest Screen (with Test Running and Signal Strength as a Percentage)Figure 7-8 Bottom of Linktest Screen (with Test Running and Signal Strength in dBm)

7-21Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 7 Performing Diagnostics Running an RF Link TestTable 7-5 interprets the statistics that are displayed on the Linktest screen while the link test is running.Table 7-5 Linktest StatisticsLinktest Statistic DescriptionPackets Received OK The number of packets of the specified size that have been received successfully.Packets Transmitted OK The number of packets of the specified size that have been transmitted successfully.Status The operational mode of your client adapter.Value: Error, Configured, Associated, Not Associated, orAd Hoc ModeCurrent Link Speed The rate at which your client adapter is currently transmitting data packets.Value: 1, 2, 5.5, or 11 Mbps (2.4-GHz client adapters);6, 9, 12, 18, 24, 36, 48, or 54 Mbps (5-GHz clientadapters)Associated Access Point Name The name of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode, the access point was configured with a name, and Aironet Extensions are enabled (on access points running Cisco IOS release 12.2(4)JA or greater).Associated Access Point MAC Address The MAC address of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode.Note This field displays the MAC address of the access point’s Ethernet port (for access points that do not run Cisco IOS) or the MAC address of the access point’s radio (for access points that run Cisco IOS). The MAC address of the Ethernet port on access points that run Cisco IOS is printed on a label on the back of the device.Current Signal Strength The signal strength for all received packets. The higher the value and the more green the bar graph is, the stronger the signal.Range: 0 to 100% or –95 to –45 dBmCurrent Signal Quality(2.4-GHz client adapters) The signal quality for all received packets. The higher the value and the more green the bar graph is, the clearer the signal.Range: 0 to 100%Note This setting appears only for 2.4-GHz client adapters and only if you selected signal strength to be displayed as a percentage. See the Signal Strength Display Units parameter in Table 7-2 for information.

7-22Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 7 Performing DiagnosticsRunning an RF Link TestStep 6 If you did not set the link test to run continuously, the test ends after the specified number of packets is sent, and the Stop button changes back to the Start button. To stop the link test at any time, click Stop,OK, or Cancel.Current Noise Level(2.4-GHz client adapters) The level of background radio frequency energy in the 2.4-GHz band. The lower the value and the more green the bar graph is, the less background noise present.Range: –100 to –45 dBmNote This setting appears only for 2.4-GHz client adapters and only if you selected signal strength to be displayed in dBm. See the Signal Strength Display Units parameter in Table 7-2 for information.Current Beacons Received (5-GHz client adapters)The percentage of beacon packets received versus those expected to be received. The higher the value and the more green the bar graph is, the clearer the signal.Example: The access point sends out 10 beacons per second, soyou would expect the client adapter to receive 50beacon packets in 5 seconds. If it receives only 40packets, the percentage of beacons received would be80%.Range: 0 to 100%Note This setting appears only for 5-GHz client adapters.Overall Link Quality The client adapter’s ability to communicate with the access point, which is determined by the combined result of the adapter’s signal strength and signal quality.Value: Not Associated, Poor, Fair, Good, or ExcellentNote This setting appears for 2.4-GHz client adapters (but only if you selected signal strength to be displayed as a percentage) and for 5-GHz client adapters. See the Signal Strength Display Units parameter in Table 7-2 for information.Signal to Noise Ratio(2.4-GHz client adapters) The difference between the signal strength and the current noise level. The higher the value, the better the client adapter’s ability to communicate with the access point.Range: 0 to 90 dBNote This setting appears only for 2.4-GHz client adapters and only if you selected signal strength to be displayed in dBm. See the “Signal Strength Display Units” parameter in Table 7-2 for information.Table 7-5 Linktest Statistics (continued)Linktest Statistic Description

CHAPTER8-1Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-068Using the Aironet Client Monitor (ACM)This chapter explains how to use the Aironet Client Monitor (ACM) to access status information about your client adapter and perform basic tasks.The following topics are covered in this chapter:•Overview of ACM, page 8-2•The ACM Icon, page 8-2•Tool Tip Window, page 8-3•Pop-Up Menu, page 8-5

8-2Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM)Overview of ACMOverview of ACMACM is an optional application that provides a small subset of the features available through ACU. Specifically, it enables you to access status information about your client adapter and perform basic tasks. ACM is accessible from an icon in the Windows system tray, making it easily accessible and convenient to use.The ACM icon appears only if a client adapter is installed in your computer and you did not disable ACM during installation. If more than one client adapter is installed, an ACM icon appears in the system tray for each adapter.ACM provides information and options in the following ways:•In the appearance of the icon itself•Through a tool tip window that appears when you hover the cursor over the icon•Through a pop-up menu that appears when you right-click the iconThe ACM IconThe appearance of the ACM icon indicates the connection status of your client adapter. ACM reads the client adapter status and updates the icon every 2 seconds. Table 8-1 interprets the different appearances of the ACM icon.Note Windows 98, 98 SE, 2000, and XP may display their own wireless network connection status icon in the system tray. Cisco recommends that you turn off the Windows icon and use the ACM icon to monitor your wireless connection.Table 8-1 Interpreting the ACM IconIcon DescriptionThe client adapter’s radio is turned off.The client adapter is not associated to an access point.The client adapter is associated to an access point, but the user is not authenticated.The client adapter is associated to an access point, and the link quality is excellent or good.The client adapter is associated to an access point, and the link quality is fair.The client adapter is associated to an access point, and the link quality is poor.

8-4Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM)Tool Tip WindowConnection status The operational mode of your client adapter.Value: Radio Off, Not Associated, Associated, Authenticating, Authenticated, or Authentication FailedConnection Status DescriptionRadio Off The client adapter’s radio is turned off.Not Associated The client adapter has not established a connection to an access point.Associated The client adapter has established a connection to an access point.Authenticating The client adapter is associated to an access point, and the authentication process has begun but not yet succeeded.Authenticated The client adapter is associated to an access point, and the user is authenticated.Authentication Failed The client adapter is associated to an access point, but the attempt to authenticate the user has failed.Note This status may appear very briefly or not all as the authentication failure may result in the client adapter becoming disassociated, in which case the status reads “Not Associated.”Link quality The client adapter’s ability to communicate with the access point, which is determined by the combined result of the adapter’s signal strength and signal quality.Value: Excellent, Good, Fair, or PoorLink speed The rate at which your client adapter is currently transmitting data packets.Value: 1, 2, 5.5, or 11 Mbps (2.4-GHz client adapters);6, 9, 12, 18, 24, 36, 48, or 54 Mbps (5-GHz client adapters)Client adapter type A description of your client adapter.Client adapter IP address The IP address of your client adapter.Table 8-2 Tool Tip Window Elements (continued)Status Element Description

8-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM) Pop-Up MenuPop-Up MenuWhen you right-click the ACM icon, the ACM pop-up menu appears (see Figure 8-2).Figure 8-2 ACM Pop-Up MenuThe following sections describe each ACM pop-up menu option.Note If you used the Aironet Client Monitor Preferences screen or your system administrator used an administrative tool to deactivate certain ACM menu options, these options do not appear in the menu and therefore cannot be selected.AboutWhen you select this option, the About screen appears (see Figure 8-3).Figure 8-3 ACM About ScreenThe About screen displays the version number of ACM that your computer is running and enables you to access the online help. To access the online help, click the Help button. An overview of ACM appears.

$8-6Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM)Pop-Up MenuExitThis option closes ACM for all client adapters.Note To reactivate ACM, use Windows Explorer to find the path where the ACM software is installed. (The default location is C:\Program Files\Cisco Systems\Aironet Client Monitor.) Then double-click ACUMon.exe.Launch Aironet Client UtilityThis option activates ACU. It is available only if ACU is installed. If more than one ACM icon appears in the Windows system tray, ACU initializes itself to use the client adapter associated with the icon that initiated the launch.TroubleshootingThis option activates the Cisco Wireless LAN Adapter Troubleshooting Utility, which enables you to identify and resolve configuration and association problems with your client adapter. Refer to the “Using the Troubleshooting Utility” section on page 10-4 for detailed instructions on using this utility.PreferencesWhen you select this option, the Aironet Client Monitor Preferences screen appears (see Figure 8-4).Figure 8-4 Aironet Client Monitor Preferences Screen$

$8-7Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM) Pop-Up MenuThis screen enables you to determine when ACM runs and to select the options that appear on the ACM pop-up menu. The selections you make apply to every instance of ACM. For example, if you deselect the Troubleshooting option, it will not appear in the pop-up menu for any ACM icon.Follow the steps below to make your selections.Step 1 If you want ACM to run automatically when Windows starts, make sure the Run the program automatically when Windows starts check box is checked. Otherwise, uncheck this check box.Note If you do not select this option and later want to run ACM, you must use Windows Explorer to find the path where the ACM software is installed. (The default location is C:\Program Files\Cisco Systems\Aironet Client Monitor.) Then double-click ACUMon.exe.Step 2 In the Menu Options portion of the screen, make sure the check boxes of all the options that you want to appear in the ACM pop-up menu are checked. Any options that are not checked will not be included in the menu.Note The Preferences option cannot be deselected. It always appears in the ACM pop-up menu.Step 3 Click OK to save your changes.Turn Radio On/OffThis option enables you to turn the client adapter’s radio on or off. Turning the radio off prevents the adapter from transmitting RF energy. You might want to turn off the client adapter’s radio in the following situations:•You are not transmitting data and want to conserve battery power.•You have EAP-SIM authentication set up to occur transparently (the SIM card is left in the reader and the PIN is stored in the computer), and you do not want to be billed for air time upon entering an area that enables the client to authenticate.•You are using a laptop on an airplane and want to prevent the adapter’s transmissions from potentially interfering with the operation of certain devices.When the radio is on, it periodically sends out probes even if it is not associated to an access point, as required by the 802.11 specification. Therefore, it is important to turn it off around devices that are susceptible to RF interference.Note Your client adapter is not associated while the radio is off.Note If your client adapter’s radio is turned off before your computer enters standby or hibernate mode or before you reboot the computer, the radio remains off when the computer resumes. You must turn the radio back on to resume operation.$

8-11Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM) Pop-Up MenuSSID The name of the network to which your client adapter is currently associated. Note Refer to the SSID1 parameter in Table 5-2 for information on setting the client adapter’s SSID.Access Point Name The name of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode, the access point was configured with a name, and Aironet Extensions are enabled (on access points running Cisco IOS release 12.2(4)JA or greater).Access Point IP Address The IP address of the access point to which your client adapter is associated. It is shown only if the client adapter is in infrastructure mode, the access point was configured with an IP address, and Aironet Extensions are enabled (on access points running Cisco IOS release 12.2(4)JA or greater).Note If Aironet Extensions are disabled, the IP address of the associated access point is shown as 0.0.0.0.Link Speed The rate at which your client adapter is currently transmitting data packets.Value: 1, 2, 5.5, or 11 Mbps (2.4-GHz client adapters);6, 9, 12, 18, 24, 36, 48, or 54 Mbps (5-GHz client adapters)Client Adapter IP Address The IP address of your client adapter.Table 8-3 Connection Status Screen Elements (continued)Status Element Description

8-12Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 8 Using the Aironet Client Monitor (ACM)Pop-Up Menu

CHAPTER9-1Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-069Routine ProceduresThis chapter provides procedures for common tasks related to the client adapter.The following topics are covered in this chapter:•Inserting and Removing a Client Adapter, page 9-2•Client Adapter Software Procedures, page 9-5•Restarting the Client Adapter, page 9-15•Turning Your Client Adapter’s Radio On or Off, page 9-15•Uninstalling the Microsoft Hot Fix, page 9-16

9-3Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Inserting and Removing a Client AdapterFigure 9-1 Inserting a PC Card or PC-Cardbus Card into a Computing DeviceNote The profiles for PC-Cardbus cards are tied to the slot in which the card is inserted. Therefore, you must always insert your PC-Cardbus card into the same slot or create profiles for both slots.Inserting a PCI CardStep 1 Turn off the PC and all its components.Step 2 Remove the computer cover.Note On most Pentium PCs, PCI expansion slots are white. Refer to your PC documentation for slot identification.Step 3 Remove the screw from the top of the CPU back panel above an empty PCI expansion slot. This screw holds the metal bracket on the back panel.Caution Static electricity can damage your PCI card. Before removing the adapter from the anti-static packaging, discharge static by touching a metal part of a grounded PC.Step 4 Examine the PCI card. The antenna connector and the LEDs face out of your computer and are visible when you put the cover back on. The bottom edge of the card is the connector you will insert into an empty expansion slot in your computer. See Figure 9-2.

9-4Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresInserting and Removing a Client AdapterFigure 9-2 Inserting a PCI Card into a PCStep 5 Tilt the card to allow the antenna connector and LEDs to slip through the opening in the CPU back panel.Step 6 Press the card into the empty slot until the connector is firmly seated.Caution Do not force the card into the expansion slot as this could damage both the card and the slot. If the card does not insert easily, remove it and reinsert it.Step 7 Reinstall the screw on the CPU back panel and replace the computer cover.Step 8 Attach the 2-dBi antenna to the card’s antenna connector until it is finger-tight. Do not overtighten.Step 9 For optimal reception, position the antenna so it is straight up.Step 10 Boot up your PC.Removing a Client AdapterFollow the instructions in one of the sections below to remove a PC card, PC-Cardbus card, or PCI card from a computing device, when necessary.Removing a PC Card or PC-Cardbus CardTo remove a PC card or PC-Cardbus card after it is successfully installed and configured (such as when your laptop is to be transported), completely shut down your computer and pull the card directly out of the PC card slot or Cardbus slot. When the card is reinserted and the computer is rebooted, your connection to the network should be re-established.Note If you need to remove your PC card or PC-Cardbus card but do not want to shut down your computer, double-click the Unplug or Eject Hardware icon in the Windows system tray, select the Cisco Aironet client adapter you want to remove under Hardware devices, click Stop, and click OK twice. Then pull the card directly out of the card slot.AntennaconnectorLEDs Card edgeconnectorStandard 2 dBidipole antenna47521

9-5Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Client Adapter Software ProceduresRemoving a PCI CardBecause PCI client adapters are installed inside desktop computers, which are not designed for portable use, you should have little reason to remove the adapter. However, instructions are provided below in case you ever need to remove your PCI card.Step 1 Completely shut down your computer.Step 2 Disconnect the client adapter’s antenna.Step 3 Remove the computer cover.Step 4 Remove the screw from the top of the CPU back panel above the PCI expansion slot that holds your client adapter.Step 5 Pull up firmly on the client adapter to release it from the slot and carefully tilt the adapter to allow it to clear the opening in the CPU back panel.Step 6 Reinstall the screw on the CPU back panel and replace the computer cover.Client Adapter Software ProceduresThis section provides instructions for the following procedures:•Finding the Install Wizard version, see below•Upgrading the client adapter software, page 9-6•Uninstalling the client adapter software, page 9-6•Finding the driver version, page 9-7•Firmware procedures, page 9-8•ACU procedures, page 9-12•ACM procedures, page 9-15Finding the Install Wizard VersionFollow the instructions in this section to find the version of the Install Wizard that is currently installed for your client adapter.Step 1 Open Windows Explorer.Step 2 Find the Install Wizard files.Step 3 Right-click the Setup.exe file.Step 4 Click Properties.Step 5 Click the Version tab. The version of the currently installed Install Wizard file is shown in the File version field.

9-6Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresClient Adapter Software ProceduresUpgrading the Client Adapter SoftwareThe same procedure that is used to initially install client adapter software can also be used to upgrade to a more recent version. Refer to Chapter 3 for instructions on upgrading your client adapter’s software.Note The client adapter’s firmware can also be upgraded through ACU. Refer to the “Upgrading the Firmware” section on page 9-8 for details.Uninstalling the Client Adapter SoftwareThis section provides instructions for uninstalling any Cisco Aironet client adapter drivers, utilities, and security modules that are installed on your computer. Only the client adapter’s firmware remains installed. This procedure is necessary if you want to remove any installed client adapter software components from your computer or downgrade to previous versions.Note If you want to downgrade to earlier versions of client adapter software, follow the steps below to uninstall the current software components. Then install the older software.Note When you uninstall the client adapter software, any existing profiles are removed. If you want to save your profiles for later use, follow the instructions in Chapter 4 to export your profiles before uninstalling the software components.Note This procedure does not uninstall the PC, LM, or PCI card driver that was bundled with Windows Me and XP. It uninstalls only drivers to which you have upgraded. When you follow the steps below to uninstall an upgraded driver and then eject and reinsert the card, Windows finds the original driver and reinstalls it automatically.Step 1 Perform one of the following:•If you want to remove the client adapter from your computer, shut down your computer, remove the client adapter, and reboot your computer.•If you want to leave your client adapter inserted in your computer or if your client adapter is an LM or mini PCI card and cannot be removed, go to Step 2.Step 2 Select Start > Run.Step 3 Browse to the location of the Install Wizard software, select the Setup.exe file, and click Open and OK.The Cisco Aironet Wireless LAN Client Adapter Installation Wizard screen appears (see Figure 9-3).

9-7Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Client Adapter Software ProceduresFigure 9-3 Cisco Aironet Wireless LAN Client Adapter Installation Wizard screenStep 4 Select Uninstall All Components and click Next.Step 5 When prompted to confirm your decision, click Yes. The process to uninstall the files begins. You are notified throughout the process as each component is uninstalled.Step 6 When the process completes, you are notified that the system is about to reboot. Close any open applications and click OK.Step 7 If you did not remove the client adapter from your computer, the Found New Hardware Wizard screen appears after your computer reboots. Click Cancel.Note The Found New Hardware Wizard screen does not appear on computers running Windows NT.Step 8 This procedure does not remove the Install Wizard file or its uncompressed files. If you want to remove them from your computer, find the files using Windows Explorer and delete them.Finding the Driver VersionFollow the instructions in this section to find the version of the driver that is currently installed for your client adapter.Step 1 Open ACU.Step 2 Click the Status icon or select Status from the Commands drop-down menu. The Status screen displays the current version of your client adapter’s driver in the NDIS Driver Version field.

9-8Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresClient Adapter Software ProceduresFirmware ProceduresThis section provides instructions for the following procedures:•Finding the Firmware Version, see below•Upgrading the Firmware, see below•Preventing the Driver from Upgrading the Firmware, page 9-10Finding the Firmware VersionFollow the instructions in this section to find the version of firmware that is currently installed for your client adapter.Step 1 Open ACU.Step 2 Click the Status icon or select Status from the Commands drop-down menu. The Status screen displays the current version of your client adapter’s firmware in the Firmware Version field.Upgrading the FirmwareCaution To minimize the risk of a power failure during the firmware flashing process, which could render your client adapter inoperable, Cisco recommends that your computer be plugged into AC power or have a fully charged battery at the start of flashing. If a power failure does occur, follow the instructions in the “Technical Assistance Center” section of the Preface to contact TAC for assistance.You can upgrade your client adapter’s firmware using either the Install Wizard or ACU. If you use the wizard, the firmware loads from the Install Wizard file and is installed along with other software components. If you use ACU, the firmware installs from an image (*.img) file that contains only firmware.Note To ensure compatibility between software components, Cisco recommends that you use the Install Wizard to upgrade the firmware along with the other software components.Using the Install WizardTo upgrade the firmware using the Install Wizard, follow the instructions in the “Installing or Upgrading the Client Adapter Software” section on page 3-2.

9-9Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Client Adapter Software ProceduresUsing ACUNote When you upgrade your client adapter’s firmware using ACU, the Automatically Load New Firmware When NDIS Driver Is Updated parameter on the Aironet Client Utility Preferences screen becomes disabled (or unchecked) automatically to prevent the newly loaded firmware from being overwritten by the driver. If you ever want to enable this parameter, you must recheck the check box.To upgrade the firmware using ACU, follow the steps below.Step 1 Use the computer’s web browser to access the following URL:http://www.cisco.com/public/sw-center/sw-wireless.shtmlStep 2 Select Option #2: Aironet Wireless Software Display Tables.Note You can download software from the Software Selector tool instead of the display tables. To do so, select Option #1: Aironet Wireless Software Selector, follow the instructions on the screen, and go to Step 7.Step 3 Select Cisco Aironet Wireless LAN Client Adapters.Step 4 Under Individual Files, find the client adapter firmware.Step 5 Click the link that corresponds to your client adapter’s model number (such as 340 or 350 series).Step 6 Select the latest firmware file for your specific client adapter type (such as CB or MPI).Note The firmware for PC, LM, and PCI cards is labeled PCMCIA-LMC-PCI, the firmware for mini PCI cards is labeled mini PCI or MPI, and the firmware for PC-Cardbus cards is labeled CB.Note If your wireless network uses EAP authentication, access points to which your client adapter will attempt to authenticate must use the following firmware versions or greater: 11.23T (340 and 350 series access points), 12.2(4)JA (1100 series access points), or 11.54T (1200 series access points).Step 7 Read and accept the terms and conditions of the Software License Agreement.Step 8 Select the firmware file again to download it.Step 9 Save the file to a floppy disk or to your computer’s hard drive.Step 10 Find the file using Windows Explorer, double-click it, and extract the image file to a folder.Note To extract the file, click Browse on the WinZip Self-Extractor screen, select the folder in which you want the file to be placed, and click OK and Unzip. After the file is extracted, click OK to close the screen.Step 11 Make sure the client adapter is installed in your computer and is operational.Step 12 Open ACU; click the Load Firmware icon or select Load New Firmware from the Commands drop-down menu. The Load New Firmware screen appears (see Figure 9-4).

9-10Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresClient Adapter Software ProceduresFigure 9-4 Load New Firmware ScreenStep 13 Find the location of the new firmware in the Look in box.Step 14 Click the firmware image file (*.img) so that it appears in the File name box at the bottom of the screen.Step 15 Click the Open button. A progress bar appears while the selected image is loaded into the client adapter’s Flash memory.Step 16 Click OK when the “Firmware Upgrade Complete!” message appears. The OK button cannot be selected until the process is complete or an error occurs. If an error occurs, refer to the “Error Messages” section in Chapter 10.Preventing the Driver from Upgrading the FirmwareThe Automatically Load New Firmware When NDIS Driver Is Updated parameter on the Aironet Client Utility Preferences screen affects the firmware that is bundled with the driver, not the firmware that is included in the Install Wizard. This parameter controls whether the driver (whenever it loads) installs the firmware with which it is bundled. (The driver loads each time you insert a client adapter or reboot your computer.)Note To complete this procedure, you must have used the Install Wizard to install ACU.Note The Automatically Load New Firmware When NDIS Driver Is Updated parameter is functionally equivalent to the Disable Firmware Checking parameter in the Install Wizard. The parameter that is set last is the one that governs how the driver behaves. Refer to Chapter 3 for additional information.Step 1 Open ACU.Step 2 Click the Preferences icon or select Preferences from the Options drop-down menu. The Aironet Client Utility Preferences screen appears (see Figure 9-5).

9-11Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Client Adapter Software ProceduresFigure 9-5 Aironet Client Utility Preferences ScreenStep 3 If you want to prevent the driver (when it loads) from installing the firmware with which it is bundled, thereby allowing the client adapter to retain its current firmware version, make sure the Automatically Load New Firmware When NDIS Driver Is Updated check box is not checked.Note If you want the driver (when it loads) to install the firmware with which it is bundled if it is newer than the firmware that is currently installed in the client adapter, make sure the Automatically Load New Firmware When NDIS Driver Is Updated check box is checked.Note When you upgrade your client adapter’s firmware using ACU, the Automatically Load New Firmware When NDIS Driver Is Updated parameter becomes unchecked automatically to prevent the newly loaded firmware from being overwritten by the driver. If you want to enable this parameter, you must recheck the check box.

9-12Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresClient Adapter Software ProceduresNote The Automatically Load New Firmware When NDIS Driver Is Updated parameter is dependent on the radio type (and the Cardbus slot for PC-Cardbus cards). Therefore, if you insert a client adapter of a different card type (such as a 340 instead of a 350) or insert the same PC-Cardbus card into a different slot, whether or not the driver installs the firmware with which it is bundled depends on how this parameter (or the Disable Firmware Checking parameter) was last set for that card type or card slot.Step 4 Click OK.ACU ProceduresThis section provides instructions for the following procedures:•Opening ACU, below•Exiting ACU, page 9-13•Modifying ACU installation settings, page 9-13•Finding the version of ACU, page 9-13•Adding the ACU icon to or removing it from the desktop, page 9-14•Accessing online help, page 9-14Opening ACUTo open ACU, perform one of the following:•Double-click the Aironet Client Utility (ACU) icon on your desktop.•Select Aironet Client Utility (ACU) from the folder in the Windows Start Menu that you chose during installation [the default location is Start > Program Files > Cisco Systems > Aironet Client Utility (ACU)].•Double-click My Computer > Control Panel > Aironet Client Utility.

9-13Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Client Adapter Software ProceduresExiting ACUTo exit ACU, select Exit from the Commands drop-down menu (see Figure 9-6).Figure 9-6 Commands Drop-Down MenuModifying ACU Installation SettingsIf you need to change any of the settings that you selected during installation (for example, placing the ACU icon on the desktop or allowing a saved LEAP username and password), you must run the Install Wizard again and modify the parameter values. Refer to Chapter 3 for instructions.Finding the Version of ACUFollow the instructions in this section to find the version of ACU that is currently installed.Step 1 Open ACU.Step 2 Click the About icon or select the About Aironet Client Utility option from the Help drop-down menu. The About Aironet Client Utility screen appears (see Figure 9-7).

9-14Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresClient Adapter Software ProceduresFigure 9-7 About Aironet Client Utility ScreenAdding the ACU Icon to or Removing it from the DesktopBy default, an ACU icon is added to your computer’s desktop when you install the Install Wizard.•If you wish to remove the ACU icon from the desktop, run the Install Wizard again and set the Place Icon on Desktop parameter to No or right-click the icon, click Delete, and click Yes to confirm your decision.•If you want to add the ACU icon to the desktop, set the Place Icon on Desktop parameter to Yes in the Install Wizard.Accessing Online HelpTo access ACU’s online help, open ACU. Then click the Help icon or select Contents from the Help drop-down menu. An overview of ACU appears.From the Overview of the Aironet Client Utility screen, you can access additional information.•To access information on specific menu options, click Contents. Double-click Aironet Client Utility Commands, the desired menu (such as Options Menu), and the desired topic (such as Preferences).•To access information on specific parameters, click Contents. Double-click Configurable Parameters, the client adapter, a parameter category (such as System Parameters), and the desired parameter (such as SSID).•To access information on specific diagnostic topics, click Contents. Double-click Run Time Diagnostic Information, a diagnostic category (such as Running a Linktest), and the desired topic (such as Packet Size).•To search for a specific topic, click Index, select an index entry, and click Display.•To search for a specific word or phrase, click Contents or Index, click the Find tab, and follow the instructions in the Find Setup Wizard window.

9-15Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for WindowsOL-1394-06Chapter 9 Routine Procedures Restarting the Client AdapterACM ProceduresRefer to Chapter 8 for instructions on using ACM.Restarting the Client AdapterACU enables you to reinitialize (or restart) the client adapter without having to reboot your computer or eject and reinsert the adapter. For instance, if your client adapter is experiencing poor throughput, you might want to restart the client adapter to try to force it to disassociate from the access point to which it is currently associated in the hope that it reassociates to an access point with a stronger signal.Note Restarting the client adapter may cause you to lose your wireless network connection.Follow the steps below to restart the client adapter.Step 1 Open ACU.Step 2 Select the Restart Card option from the Commands drop-down menu (see Figure 9-6).Step 3 When prompted to confirm your decision, click Yes. The driver stops the client adapter’s radio, writes the configuration (although no parameter settings have been changed), and restarts the radio. The status bar at the bottom of the ACU screen shows the client adapter losing association and then reassociating.Turning Your Client Adapter’s Radio On or OffYour client adapter’s radio can be turned on or off. Turning the radio off prevents the adapter from transmitting RF energy. You might want to turn off the client adapter’s radio in the following situations:•You are not transmitting data and want to conserve battery power.•You have EAP-SIM authentication set up to occur transparently (the SIM card is left in the reader and the PIN is stored in the computer), and you do not want to be billed for air time upon entering an area that enables the client to authenticate.•You are using a laptop on an airplane and want to prevent the adapter’s transmissions from potentially interfering with the operation of certain devices.When the radio is on, it periodically sends out probes even if it is not associated to an access point, as required by the 802.11 specification. Therefore, it is important to turn it off around devices that are susceptible to RF interference.Note Your client adapter is not associated while its radio is off.Note If your client adapter’s radio is turned off before your computer enters standby or hibernate mode or before you reboot the computer, the radio remains off when the computer resumes. You must turn the radio back on to resume operation.

$9-16Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows OL-1394-06Chapter 9 Routine ProceduresUninstalling the Microsoft Hot FixYou can use ACU or ACM to turn the client adapter’s radio on or off. Follow the instructions below to use ACU or refer to the “Turn Radio On/Off” section on page 8-7 to use ACM.If your client adapter’s radio is on, open ACU and select Turn Radio Off from the Commands drop-down menu (see Figure 9-6) to turn off the radio. The status bar at the bottom of the ACU screen indicates that the radio is turned off.If your client adapter’s radio is off, open ACU and select Turn Radio On from the Commands drop-down menu (see Figure 9-6) to turn on the radio.Uninstalling the Microsoft Hot FixWhen LEAP is selected during installation on a Windows 98 or 98 SE device, a Microsoft hot fix is also installed to fix two problems related to the use of LEAP. If you ever need to uninstall the hot fix, select Start > Run, enter C:\Windows\Inf\Qfe\W98.se\241052un.inf, and click OK.$