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Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide

OL-4211-03

A P P E N D I X

Technical Specifications

This appendix provides technical specifications for the Cisco Aironet CB21AG and PI21AG Wireless
LAN Client Adapters.

The following topics are covered in this appendix:

•

Physical Specifications,

page A-2

•

Radio Specifications,

page A-2

•

Power Specifications,

page A-6

•

Safety and Regulatory Compliance Specifications,

page A-6

Summary of Contents for AIRONET CB21AG

Page 1: ...ive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide Customer Order Number Text Part Number OL 4211 03 ...

Page 2: ...evision or radio antenna until the interference stops Move the equipment to one side or the other of the television or radio Move the equipment farther away from the television or radio Plug the equipment into an outlet that is on a different circuit from the television or radio That is make certain the equipment and the television or radio are on circuits controlled by different circuit breakers ...

Page 3: ...ecurity Problems in Cisco Products xvii Obtaining Technical Assistance xvii Cisco Technical Support Website xvii Submitting a Service Request xviii Definitions of Service Request Severity xviii Obtaining Additional Publications and Information xix C H A P T E R 1 Product Overview 1 1 Introduction to the Client Adapters 1 2 Terminology 1 2 Hardware Components 1 3 Radio 1 3 Radio Antenna 1 3 LEDs 1 ...

Page 4: ...er 3 1 Inserting a Client Adapter 3 2 Inserting a PC Cardbus Card 3 2 Inserting a PCI Card 3 3 Changing the Bracket 3 3 Inserting the Card 3 4 Assembling the Antenna 3 5 Mounting the Antenna 3 6 Installing the Client Adapter Software 3 9 Installing a Microsoft Hot Fix for Group Policy Delay 3 20 C H A P T E R 4 Using the Profile Manager 4 1 Overview of Profile Manager 4 2 Opening Profile Manager 4...

Page 5: ...sphrase 5 26 Enabling LEAP 5 27 Enabling EAP FAST 5 31 Deleting a Manually Provisioned PAC File 5 38 Enabling EAP TLS or PEAP 5 39 Enabling EAP TLS 5 40 Enabling PEAP EAP GTC 5 42 Enabling PEAP EAP MSCHAP V2 5 46 Enabling PEAP EAP MSCHAP V2 Machine Authentication with Machine Credentials 5 49 Disabling Static WEP WPA WPA2 Passphrase or EAP 5 51 Enabling Wi Fi Multimedia 5 51 Enabling the QoS Packe...

Page 6: ...or Logon 6 12 After Your EAP FAST Password Expires 6 13 Using EAP TLS 6 13 Using PEAP EAP GTC 6 14 Windows NT or 2000 Domain Databases or LDAP Databases Only 6 14 OTP Databases Only 6 14 Using PEAP EAP MSCHAP V2 6 15 Restarting the Authentication Process 6 15 C H A P T E R 7 Viewing Status and Statistics 7 1 Overview of ADU Status and Statistics Tools 7 2 Setting Parameters that Affect ADU Status ...

Page 7: ...ng 10 1 Accessing the Latest Troubleshooting Information 10 2 Interpreting the Indicator LEDs 10 2 Troubleshooting the Client Adapter 10 3 Using the Troubleshooting Utility 10 3 Diagnosing Your Client Adapter s Operation 10 3 Saving the Detailed Report to a Text File 10 7 Disabling the Microsoft Wireless Configuration Manager Windows XP Only 10 8 Disabling the Microsoft 802 1X Supplicant Windows 2...

Page 8: ...Declaration of Conformity with Regard to the R TTE Directive 1999 5 EC C 3 Declaration of Conformity Statement C 5 Cisco Aironet CB21AG Wireless LAN Client Adapter C 5 Cisco Aironet PI21AG Wireless LAN Client Adapter C 6 Declaration of Conformity for RF Exposure C 7 Guidelines for Operating Cisco Aironet Wireless LAN Client Adapters in Japan C 7 Japanese Translation C 7 English Translation C 7 Adm...

Page 9: ...g to an Access Point Using Windows XP E 18 Viewing the Current Status of Your Client Adapter E 18 A P P E N D I X F Performing a Site Survey F 1 Overview F 2 Guidelines F 2 Additional Information F 2 Opening the Site Survey Utility F 3 Selecting the Client Adapter F 3 Using the Associated AP Status Tab F 4 Specifying Display Units F 4 Viewing the Access Point s Status F 5 Using the AP Scan List Ta...

Page 10: ...Contents x Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 ...

Page 11: ...onfiguration Guide 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 Cisco Product Security Overview page xvi Obtaining Technical Assistance pag...

Page 12: ...e components and illustrates two common network configurations Chapter 2 Preparing for Installation provides information that you need to know before installing a client adapter such as safety information and system requirements Chapter 3 Installing the Client Adapter provides instructions for installing the client adapter Chapter 4 Using the Profile Manager explains how to use the Aironet Desktop...

Page 13: ...is publication uses the following conventions to convey instructions and information Commands 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 t...

Page 14: ... 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 Advarsel Dette 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 far...

Page 15: ...o obtain technical assistance and other technical resources These sections explain how to obtain technical information from Cisco Systems Cisco com You can access the most current Cisco documentation at this URL http www cisco com univercd home home htm You can access the Cisco website at this URL http www cisco com You can access international Cisco websites at this URL http www cisco com public ...

Page 16: ...m 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 Systems Attn Customer Document Ordering 170 West Tasman Drive San Jose CA 95134 9883 We appreciate your comments Cisco Product Security Overview Cisco provides a free online Security Vulnerability Policy portal at this URL http www cisco com en US pro...

Page 17: ...tp pgp mit edu 11371 pks lookup search psirt 40cisco com op index exact on In an emergency you can also reach PSIRT by telephone 1 877 228 7302 1 408 525 6532 Obtaining Technical Assistance For all customers partners resellers and distributors who hold valid Cisco service contracts Cisco Technical Support provides 24 hour a day award winning technical assistance The Cisco Technical Support Website...

Page 18: ...is URL http www cisco com techsupport servicerequest For S1 or S2 service requests or if you do not have Internet access contact the Cisco TAC by telephone S1 or S2 service requests are those in which your production network is down or severely degraded Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly To open a servic...

Page 19: ...ughs and Cisco products and solutions as well as network deployment and troubleshooting tips configuration examples customer case studies certification and training information and links to scores of in depth online resources You can access Packet magazine at this URL http www cisco com packet iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how ...

Page 20: ...xx Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Preface Obtaining Additional Publications and Information ...

Page 21: ...oduct Overview This chapter describes the Cisco Aironet CB21AG and PI21AG 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 4 Network Configurations Using Client Adapters page 1 5 ...

Page 22: ...ate over a network can operate using the adapters This document covers the two client adapters described in Table 1 1 Terminology The following terms are used throughout this document client adapter Refers to both types of adapters PC Cardbus card or PCI card Refers to a specific adapter workstation or station Refers to a computing device with an installed client adapter infrastructure device Refe...

Page 23: ...t infrastructure devices in infrastructure mode Radio Antenna The type of antenna used depends on your client adapter PC Cardbus cards have an integrated permanently attached 0 dBi gain dual band 2 4 5 GHz diversity antenna The benefit of the diversity antenna system is improved coverage The system works by enabling the card to sample and switch between its two antenna ports in order to select the...

Page 24: ...ient Utilities Two client utilities are available for use with the client adapters Aironet Desktop Utility ADU and Aironet System Tray Utility ASTU These utilities are optional applications that interact with the client adapter s radio to adjust settings and display information ADU enables you to create configuration profiles for your client adapter and perform user level diagnostics Because ADU p...

Page 25: ...the two most common network configurations Ad hoc wireless local area network LAN Wireless infrastructure with workstations accessing a wired LAN For 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 type Ad Hoc Wireless LAN An a...

Page 26: ...l with portable or mobile stations because it enables 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 when the transfer of data packets needs to be retried...

Page 27: ...uration Guide OL 4211 03 2 Preparing for Installation This 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 ...

Page 28: ...h 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 Use in specific environments The use of wireless devices in hazardous locations is limited to the constraints posed by the safety directors of such environ...

Page 29: ...ts antenna must not be co located or operated in conjunction with any other antenna or transmitter Translated versions of these safety warnings are provided in Appendix B Unpacking the Client Adapter Follow 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 En...

Page 30: ...on Certificate Authority CA and user certificates for EAP TLS authentication or CA certificate for PEAP authentication If your wireless network uses PEAP EAP GTC authentication with a One Time Password OTP user database A hardware token device from OTP vendors or the Secure Computing SofToken program version 2 1 or later Your hardware or software token password The following information from your ...

Page 31: ...erage and network performance Appendix F which is provided for people who are responsible for conducting a site survey explains how the site survey utility 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 For Client Devices Because the client adapter is a radio...

Page 32: ...2 6 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 2 Preparing for Installation Site Requirements ...

Page 33: ...tion Guide OL 4211 03 3 Installing the Client Adapter This chapter provides instructions for installing the client adapter The following topics are covered in this chapter Inserting a Client Adapter page 3 2 Installing the Client Adapter Software page 3 9 Installing a Microsoft Hot Fix for Group Policy Delay page 3 20 ...

Page 34: ...one way into the Cardbus slot Note The Cardbus slot is on the left or right side of the computer depending on the model Step 2 Turn on your computer and let the operating system boot up completely Step 3 Hold the card with the Cisco label facing up and insert it into the Cardbus slot applying just enough pressure to make sure it is fully seated see Figure 3 1 The green LED lights when the card is ...

Page 35: ...tware section on page 3 9 Inserting a PCI Card You must perform the following procedures in the order listed below to insert a PCI card Change the bracket if required see below Insert the card page 3 4 Assemble the antenna page 3 5 Mount the antenna page 3 6 Changing the Bracket The PCI card is shipped with a full profile bracket attached If the PC into which you are inserting the PCI card require...

Page 36: ...card near the bracket see Figure 3 2 and tighten Inserting the Card Follow the steps below to insert a PCI card into your PC Step 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 expansio...

Page 37: ...tor is firmly seated Caution Do not force the card into the expansion slot this could damage both the card and the slot If the card does not insert easily remove it and reinsert it Step 8 Reinstall the screw on the CPU back panel and replace the computer cover Assembling the Antenna Follow the steps below to assemble the PCI card s antenna Step 1 Slide the antenna through the opening in the bottom...

Page 38: ...ntenna Because the PCI card 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 Place the PCI card s antenna in an area where large steel structures such as shelving units bookcases and filing cabinets will not obstruct radio signals being transmitted or receiv...

Page 39: ...nna so it is pointing straight up Then go to Step 7 If you want to mount the antenna to a wall go to Step 2 Step 2 Drill two holes in the wall that are 1 09 in 2 8 cm apart Figure 3 5 shows the distance between the mounting holes on the bottom of the antenna base Figure 3 5 Bottom of Antenna Base Step 3 Tap the two supplied wall anchors into the holes Step 4 Drive the two supplied screws into the ...

Page 40: ... the Antenna Step 6 The antenna rotates 90 degrees from its base For optimal reception position the antenna so it is pointing straight up see Figure 3 7 Figure 3 7 Rotating the Antenna Step 7 Boot up your PC The green LED lights when the card is inserted properly Step 8 If the Found New Hardware Wizard window appears click Cancel Step 9 Go to the Installing the Client Adapter Software section belo...

Page 41: ...B21AG or PI21AG client adapter software is installed on your computer If this software is already installed on your computer follow the instructions in Chapter 9 to upgrade the client adapter software Note Only one wireless client adapter can be installed and used at a time The software does not support the use of multiple cards Step 1 Make sure the client adapter is inserted in your computer Note...

Page 42: ...Adapter Software Step 8 Click the file again to download it Step 9 Save the file to your computer s hard drive Step 10 Use Windows Explorer to find the file Step 11 Double click the file The Starting InstallShield Wizard message appears followed by the Preparing Setup window see Figure 3 8 and the Cisco Aironet Installation Program window see Figure 3 9 Figure 3 8 Preparing Setup Window ...

Page 43: ...CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 3 Installing the Client Adapter Installing the Client Adapter Software Figure 3 9 Cisco Aironet Installation Program Window Step 12 Click Next The Setup Type window appears see Figure 3 10 ...

Page 44: ...ents Cisco recommends that you install the client utilities and driver Install Client Utilities and Driver Installs the client adapter driver and client utilities Install Driver Only Installs only the client adapter driver If you choose this option click Next and go to Step 26 Make Driver Installation Diskette s Enables you to create driver installation diskettes that can be used to install driver...

Page 45: ...ote The site survey utility is a stand alone application separate from ADU that runs from an executable file If you check the Install Site Survey Utility check box the Install Wizard installs the site survey executable file in the C Program Files Cisco Aironet directory unless you specify a different directory in Step 17 See Appendix F for instructions on using the utility Step 16 If a message app...

Page 46: ...ility files in the C Program Files Cisco Aironet directory Note If you want to install the client utilities in a different directory click Browse choose a different directory click OK and click Next If you chose the Make Driver Installation Diskette s option in Step 13 insert a floppy disk into your computer and click Next to copy the driver to the diskette Go to Step 26 Note If you want to copy t...

Page 47: ...rogram Folder Window Step 19 Click Next to add program icons to the Cisco Aironet program folder Note If you want to specify a different program folder choose a folder from the Existing Folders list or type a new folder name in the Program Folder field and click Next Step 20 If your computer is running Windows 2000 go to Step 26 If your computer is running Windows XP the IMPORTANT Please Read wind...

Page 48: ...nstallation and Configuration Guide OL 4211 03 Chapter 3 Installing the Client Adapter Installing the Client Adapter Software Figure 3 14 IMPORTANT Please Read Window Step 21 Read the information displayed and click Next The Choose Configuration Tool window appears see Figure 3 15 ...

Page 49: ...co Aironet Desktop Utility ADU Enables you to configure your client adapter using ADU Third Party Tool Enables you to configure your client adapter using a third party tool such as the Microsoft Wireless Configuration Manager in Windows XP Table 3 1 compares Windows XP and ADU client adapter features Table 3 1 Comparison of Windows XP and ADU Client Adapter Features Feature Windows XP ADU Configur...

Page 50: ...ed to disable it whenever ADU is activated Step 23 Click Next Step 24 If you chose Cisco Aironet Desktop Utility ADU in Step 22 go to Step 26 If you chose Third Party Tool the Enable Tray Icon window appears see Figure 3 16 Figure 3 16 Enable Tray Icon Window Security Static WEP Yes Yes LEAP or EAP FAST authentication with dynamic WEP No Yes EAP TLS or PEAP authentication Yes Yes Status and statis...

Page 51: ...ins and you are notified as each software component is installed Step 27 When a message appears indicating that your computer needs to be rebooted click OK and allow your computer to restart Step 28 If the Windows Found New Hardware Wizard appears after your computer reboots click Next allow the wizard to install the software for the client adapter and click Finish Step 29 If your network setup do...

Page 52: ...re your client adapter through ADU go to Chapter 4 to create configuration profiles If you are planning to configure your client adapter through the Windows XP Wireless Configuration Manager go to Appendix E If you are planning to configure your client adapter through another third party tool refer to the documentation for that application Note If you want to be able to use ADU s Group Policy Dela...

Page 53: ...lebuild pl aironet_hotfix Step 2 Click the hot fix file userenv zip Step 3 Complete the encryption authorization form and click Submit Step 4 Click the file again to download it Step 5 Save the file to your computer s hard drive Step 6 Find the file using Windows Explorer double click it and extract its files to a folder Step 7 Reboot your computer and press F8 while your computer is booting Step ...

Page 54: ...o Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 3 Installing the Client Adapter Installing a Microsoft Hot Fix for Group Policy Delay ...

Page 55: ...the ADU profile manager feature to create and manage profiles for your client adapter The following topics are covered in this chapter Overview of Profile Manager page 4 2 Opening Profile Manager page 4 2 Creating a New Profile page 4 4 Including a Profile in Auto Profile Selection page 4 7 Selecting the Active Profile page 4 9 Modifying a Profile page 4 10 Importing and Exporting Profiles page 4 ...

Page 56: ...in the registry and are lost if you uninstall the client adapter s software To prevent your profiles from becoming lost Cisco recommends that you back up your profiles using the profile manager s import export feature See the Importing and Exporting Profiles section on page 4 10 for details Opening Profile Manager Step 1 To open the ADU profile manager double click the Aironet Desktop Utility icon...

Page 57: ...alue Infrastructure or Ad Hoc Note Refer to the Network Type parameter in Table 5 3 for instructions on setting the network type Security Mode The type of security that is configured for the selected profile Value None Pre Shared Key WPA WPA2 Passphrase LEAP EAP FAST EAP TLS PEAP EAP GTC PEAP EAP MSCHAP V2 or Host Based EAP Note Refer to Chapter 5 for instructions on setting client adapter securit...

Page 58: ...Cisco Aironet Desktop Utility Profile Management window The Available Infrastructure and Ad Hoc Networks window appears see Figure 4 2 Figure 4 2 Available Infrastructure and Ad Hoc Networks Window This window displays a list of all available networks Click the Refresh button when you want to refresh the window and update the list of available networks Note The SSID of a Cisco IOS access point app...

Page 59: ...dapter is currently associated An available ad hoc network The ad hoc network to which your client adapter is currently associated Key icon SSIDs that are designated with a key icon are being advertised as secure networks Signal to Noise Ratio SNR 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 ...

Page 60: ...ility Profile Management window If you want to change any of the configuration parameter settings follow the instructions in Chapter 5 The profile is added to the profiles list on the Cisco Aironet Desktop Utility Profile Management window Note 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 sl...

Page 61: ...ction feature Then when auto profile selection is enabled the client adapter automatically selects a profile from the list of profiles that were included in auto profile selection and uses it to establish a connection to the network Follow these steps to include any of your profiles in auto profile selection and to establish the order in which the profiles will be selected for use Step 1 Open ADU ...

Page 62: ...he profile is removed from the Auto Selected Profiles box Step 4 The first profile in the Auto Selected Profiles box has the highest priority while the last profile has the lowest priority To change the order and priority of your auto selectable profiles select the profile that you want to move and click Move up or Move down to move the profile up or down respectively Step 5 Click OK to save your ...

Page 63: ...uded in auto profile selection If the client adapter loses association for more than 10 seconds or for more than the time specified by the LEAP EAP FAST authentication timeout value on the LEAP EAP FAST Settings window if LEAP EAP FAST is enabled the driver switches automatically to another profile that is included in auto profile selection The adapter does not switch profiles as long as it remain...

Page 64: ...le Step 1 Open ADU and click the Profile Management tab The Cisco Aironet Desktop Utility Profile Management window appears see Figure 4 1 Step 2 In the profiles list select the profile that you want to delete Note You cannot delete the active profile Step 3 Click Remove The profile is deleted Importing and Exporting Profiles This section provides instructions for importing and exporting profiles ...

Page 65: ...In the Look in drop down box find the directory containing the profile Step 5 Select the profile that you want to import so it appears in the File name box at the bottom of the window Step 6 Click Open The imported profile appears in the profiles list on the Cisco Aironet Desktop Utility Profile Management window Exporting a Profile Note PACs are not exported with EAP FAST profiles Step 1 Insert a...

Page 66: ...name appears in the File name box Step 5 Choose a directory such as your computer s floppy disk drive or a location on the network from the Save in drop down box Note The default location is the directory where ADU is installed such as C Program Files Cisco Aironet Step 6 Click Save The profile is exported to the specified location Step 7 Follow the instructions in the Importing a Profile section ...

Page 67: ...pter This chapter explains how to set the configuration parameters for a specific profile The following topics are covered in this chapter Overview page 5 2 Setting General Parameters page 5 3 Setting Advanced Parameters page 5 6 Setting Security Parameters page 5 13 Enabling Wi Fi Multimedia page 5 51 Setting Roaming Parameters in the Windows Control Panel page 5 55 ...

Page 68: ...file Management windows listed below contains parameters that affect a specific aspect of the client adapter General Prepares the client adapter for use in a wireless network Advanced Controls how the client adapter operates within an infrastructure or ad hoc network Security Controls how a client adapter associates to an access point authenticates to the wireless network and encrypts and decrypts...

Page 69: ...ofile Management General window see Figure 5 1 enables you to set parameters that prepare the client adapter for use in a wireless network This window appears after you click New or Modify on the Cisco Aironet Desktop Utility Profile Management window Figure 5 1 Profile Management General Window Table 5 2 lists and describes the client adapter s general parameters Follow the instructions in the ta...

Page 70: ...tically but can be changed Range You can key in up to 16 ASCII characters Default The name of your computer Note Each computer on the network should have a unique client name SSID1 The service set identifier SSID identifies the specific wireless network that you want the client adapter to access Range You can key in up to 32 ASCII characters case sensitive Default A blank field Note If you leave t...

Page 71: ...k field Note If a profile specifies more than one SSID it cannot be included in auto profile selection Note This field is unavailable for any profiles that are included in auto profile selection or configured for use in an ad hoc network SSID3 An optional SSID that identifies a third distinct network and enables the client adapter to roam to that network without having to be reconfigured Range You...

Page 72: ...e Profile Management Advanced window see Figure 5 2 enables you to set parameters that control how the client adapter operates within an infrastructure or ad hoc network To open this window click the Advanced tab from any Profile Management window Figure 5 2 Profile Management Advanced Window Table 5 3 lists and describes the client adapter s advanced parameters Follow the instructions in the tabl...

Page 73: ...ntry s regulatory agency FCC in the U S DOC in Canada ETSI in Europe TELEC in Japan etc Options Dependent on the radio band used and the power table programmed into the client adapter see the table below Default The maximum power level programmed into the client adapter and allowed by your country s regulatory agency Radio Band Transmit Power Level 802 11b g 10 20 30 50 63 or 100 mW 802 11a 10 13 ...

Page 74: ...n 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 Max PSP Max Power Saving Causes the access point to buffer incoming messages for the client adapter whic...

Page 75: ... your wireless network is connected to a wired Ethernet network through an access point 802 11b Preamble Determines whether your client adapter uses both short and long radio headers or only long radio headers 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...

Page 76: ...and scans all wireless modes for an available network Using this method the client does not need to drop the current connection nor change the current profile while looking for networks in other profiles Note Your client adapter s wireless mode must match that of the access points with which it is to communicate Otherwise your client adapter may not be able to associate to them Wireless Mode When ...

Page 77: ...ter does not find any other ad hoc clients this parameter specifies the channel with which the adapter will start its cell Range Dependent on regulatory domain Example 1 to 11 2412 to 2462 MHz in North America Default Auto the client automatically determines the channel on which to start communications Note This parameter is available only when 2 4 GHz 11 Mbps is selected for the Wireless Mode Whe...

Page 78: ...nt adapter to authenticate and communicate only with access points that have the same WEP key During shared key authentication the access point sends an unencrypted challenge packet to the client adapter which encrypts the packet and sends it back to the access point The access point attempts to decrypt the encrypted packet and sends an authentication response packet indicating the success or fail...

Page 79: ... of up to four preferred access points to which the client adapter can associate then click OK The MAC address should consist of 12 hexadecimal characters If the specified access points are not found or the client adapter roams out of range the adapter may associate to another access point Go to the next section to set additional parameters or click OK to save your changes and return to the Cisco ...

Page 80: ...crypting it through the use of wired equivalent privacy WEP encryption keys With WEP encryption the transmitting device encrypts each packet with a WEP key and the receiving device uses that same key to decrypt each packet The WEP keys used to encrypt and decrypt transmitted data can be statically associated with your adapter or dynamically created as part of the EAP authentication process The inf...

Page 81: ...authentication types are available in ADU for use with Windows 2000 or XP EAP Cisco Wireless or LEAP This authentication type leverages Cisco Key Integrity Protocol CKIP and MMH message integrity check MIC for data protection ADU offers a variety of LEAP configuration options including how a username and password are entered to begin the authentication process The username and password are used by...

Page 82: ... In option Private PACs can be accessed and used only by the user who provisioned them or the system administrator Note Global PACs are stored on C Document and Settings All Users Application Data Cisco cscostore and private PACs are stored on C Document and Settings user Application Data Cisco cscostore If automatic PAC provisioning is enabled and it occurs after the user is logged on the PAC is ...

Page 83: ...ure ACS release 3 2 or later When you configure your access point as indicated in Table 5 4 on page 5 20 and configure your client adapter for LEAP EAP FAST EAP TLS PEAP EAP GTC or PEAP EAP MSCHAP V2 authentication to the network occurs in the following sequence 1 The client associates to an access point and begins the authentication process Note The client does not gain full access to the network...

Page 84: ... FAST with WPA WPA2 page 5 31 EAP TLS with WPA WPA2 page 5 40 PEAP EAP GTC with WPA WPA2 page 5 42 PEAP EAP MSCHAP V2 with WPA WPA2 page 5 46 Note WPA must also be enabled on the access point To use WPA access points must use Cisco IOS Release 12 2 11 JA or later To use WPA2 access points must use Cisco IOS Release 12 3 2 JA or later Refer to the documentation for your access point for instruction...

Page 85: ... Access Points that Fail LEAP Authentication The CB21AG and PI21AG client adapters and the following access point firmware versions support a feature that is designed to detect access points that fail LEAP authentication 12 00T or later access points running VxWorks Cisco IOS Release 12 2 4 JA or later 1100 series access points Cisco IOS Release 12 2 8 JA or later 1200 series access points Cisco I...

Page 86: ...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 TKIP is enabled automatically when WPA is enabled and it is disabled when WPA is disabled Broadcast Key Rotation When you enable broadcast WEP key rotation the access poi...

Page 87: ...ose a cipher suite that includes AES CCMP and enable Network EAP and Open with EAP Authentication and WPA for the SSID Note To allow both WPA and non WPA clients to use the SSID enable optional WPA EAP FAST authentication Choose 802 1x and EAP FAST set EAP FAST settings and enable automatic provisioning or import a PAC file Set up and enable WEP and enable both Network EAP and Open with EAP Authen...

Page 88: ...then enable WPA and Open with EAP Authentication for the SSID Note To allow both WPA and non WPA clients to use the SSID enable optional WPA If using Windows XP to configure card Enable WPA and choose Enable network access control using IEEE 802 1X and Smart Card or other Certificate as the EAP Type Note WPA2 is not yet available in the Microsoft Wireless Configuration Manager in Windows XP For WP...

Page 89: ...ID enable optional WPA CCKM fast secure roaming Choose WPA WPA2 CCKM and LEAP EAP FAST EAP TLS PEAP EAP GTC or PEAP EAP MSCHAP V2 then set the EAP authentication settings Note If you want to enable CCKM you must choose WPA WPA2 CCKM regardless of whether you want the client adapter to use WPA or WPA2 The configuration of the access point to which your client adapter associates determines whether C...

Page 90: ...igure The Define Pre Shared Keys window appears see Figure 5 5 Figure 5 5 Define Pre Shared Keys Window TKIP No settings required automatically enabled Set up and enable WEP set TKIP to Cisco or check the Enable Per Packet Keying check box and set Use Aironet Extensions to Yes Broadcast key rotation Enable LEAP EAP FAST EAP TLS PEAP EAP GTC or PEAP EAP MSCHAP V2 Set up and enable WEP and set Broad...

Page 91: ...you are creating Follow the guidelines below to enter a new static WEP key WEP keys must contain the following number of characters 10 hexadecimal characters or 5 ASCII text characters for 40 bit keys Example 5A5A313859 hexadecimal or ZZ18Y ASCII 26 hexadecimal characters or 13 ASCII text characters for 128 bit keys Example 5A583135333554595549333534 hexadecimal or ZX1535TYUI354 ASCII Note You mus...

Page 92: ...lt setting Note For security reasons Cisco recommends that WEP enabled and WEP disabled clients not be allowed in the same cell because broadcast packets are sent unencrypted even to clients running WEP However you can enable VLANs on the access point to separate WEP enabled and WEP disabled clients Step 9 Click OK to save your settings and return to the Cisco Aironet Desktop Utility Profile Manag...

Page 93: ...l wireless network authentication occurs The value that you set for this parameter goes into effect after the computer reboots with this profile set as the active profile Note A Microsoft hot fix is required in order to use this parameter on computers running Windows 2000 Refer to the Installing a Microsoft Hot Fix for Group Policy Delay section on page 3 20 for information on obtaining and instal...

Page 94: ... EAP Type drop down box If you want to enable LEAP with WPA or WPA2 choose WPA WPA2 CCKM under Set Security Options and LEAP in the WPA WPA2 CCKM EAP Type drop down box Note If you want to enable CCKM on the client adapter you must choose the WPA WPA2 CCKM security option regardless of whether you want the adapter to use WPA or WPA2 The configuration of the access point to which your client adapte...

Page 95: ...as needed using the Manual Login option in the Action drop down menu or ASTU You are not prompted to enter a LEAP username and password during the Windows login This option might be used to support a software token one time password system or other systems that require additional software that is not available at login If you chose Use Saved User Name and Password in Step 3 follow these steps a En...

Page 96: ... because broadcast packets are sent unencrypted even to clients running WEP However you can enable VLANs on the access point to separate WEP enabled and WEP disabled clients Step 10 If you want to change the value of the Group Policy Delay parameter enter a new value or use the up and down arrows to select a value between 0 and 65535 seconds Microsoft supports only values between 30 and 600 second...

Page 97: ...e 5 19 Note The access point to which your client adapter will associate must be configured for both Network EAP and Open authentication All necessary infrastructure devices such as access points servers gateways and user databases must be properly configured for EAP FAST authentication Follow these steps to enable EAP FAST authentication for this profile Step 1 Perform one of the following on the...

Page 98: ...T username and password setting options Use Temporary User Name and Password Requires you to enter the EAP FAST 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 an EAP FAST username and password each time the computer reboots Authentication occurs automatically as needed using...

Page 99: ...to specify a domain name that will be passed to the RADIUS server along with your username enter it in the Domain field Step 5 If you work in an environment with multiple domains and therefore want your Windows login domain to be passed to the RADIUS server along with your username check the Include Windows Logon Domain with User Name check box The default setting is checked Note If you chose to u...

Page 100: ...from which you have previously provisioned a PAC If the PAC authority drop down box is empty or does not contain the name of a desired PAC authority go to Step 10 to import a PAC file Note This step is required for manual PAC provisioning but optional for automatic PAC provisioning If automatic provisioning is enabled automatic provisioning will be initiated during the authentication process of th...

Page 101: ...are stored in the global PAC store can be accessed and used by any user at any logon stage Global PACs are available before or during logon or after the user is logged off if the profile is not configured with the No Network Connection Unless User Is Logged In option Private PACs that are stored in the private store can be accessed and used only by the user who provisioned them or the system admin...

Page 102: ...k in box The default location is C Program Files Cisco Aironet e Click the PAC file pac so that it appears in the File name box at the bottom of the window Note The filename and extension of a PAC file is determined by the PAC authority that issues it but the standard file extension is pac f Click Open g If the Enter Password window appears see Figure 5 11 enter the PAC file password which can be ...

Page 103: ...ox is unchecked a message appears indicating that the PAC may not be accessible during the domain logon process or when you are logged off If you want a copy of the PAC to be added to the global store so that it will be available when you are not logged on click Yes If you do not want a copy of the PAC to be added to the global store click No then click OK when a message appears indicating that yo...

Page 104: ...value that you set for this parameter goes into effect after the computer reboots with this profile set as the active profile Note A Microsoft hot fix is required in order to use this parameter on computers running Windows 2000 Refer to the Installing a Microsoft Hot Fix for Group Policy Delay section on page 3 20 for information on obtaining and installing the hot fix Step 14 Click OK to save you...

Page 105: ...permissions http support microsoft com default aspx scid kb en us Q278381 Note If you ever change permissions on higher level directories and those settings are applied to all subdirectories you may need to reset the permissions for the MachineKeys folder To use WPA2 with EAP TLS or PEAP authentication client adapters must use the software included in Install Wizard 2 0 or later Access points to w...

Page 106: ...2 1x EAP Type drop down box If you want to enable EAP TLS with WPA or WPA2 choose WPA WPA2 CCKM under Set Security Options and EAP TLS in the WPA WPA2 CCKM EAP Type drop down box Note If you want to enable CCKM on the client adapter you must choose the WPA WPA2 CCKM security option regardless of whether you want the adapter to use WPA or WPA2 The configuration of the access point to which your cli...

Page 107: ...ep 7 Perform one of the following Leave the Server Domain Name field blank to allow the client to accept a certificate from any server that supplies a certificate signed by the certificate authority listed in the Trusted Root Certification Authorities drop down box This is the recommended option In the Server Domain Name field enter the domain name of the server from which the client will accept a...

Page 108: ...ng a Microsoft Hot Fix for Group Policy Delay section on page 3 20 for information on obtaining and installing the hot fix Step 12 Click OK to save your settings and return to the Cisco Aironet Desktop Utility Profile Management window Step 13 Refer to Chapter 6 for instructions on authenticating using EAP TLS Enabling PEAP EAP GTC Follow the steps below to enable PEAP EAP GTC for this profile Ste...

Page 109: ...default setting is checked Note If you do not check the Use Machine Information For Domain Logon check box machine authentication is not performed Authentication does not occur until you log on Step 4 Choose the certificate authority from which the server certificate was downloaded in the Trusted Root Certification Authorities drop down box Step 5 Choose either Token or Static Password depending o...

Page 110: ...nd chose the Static Password option in Step 5 enter your PEAP authentication password which is registered with the RADIUS server in both the Password and Confirm Password fields Step 8 If the Use Windows User Name and Password check box is unchecked and you want to implement added security by further refining the network certificate that will be accepted and controlling the string used to set up t...

Page 111: ...ause broadcast packets are sent unencrypted even to clients running WEP However you can enable VLANs on the access point to separate WEP enabled and WEP disabled clients Step 11 If you want to change the value of the Group Policy Delay parameter enter a new value or use the up and down arrows to select a value between 0 and 65535 seconds Microsoft supports only values between 30 and 600 seconds Th...

Page 112: ... to enable PEAP EAP MSCHAP V2 with WPA or WPA2 choose WPA WPA2 CCKM under Set Security Options and PEAP EAP MSCHAP V2 in the WPA WPA2 CCKM EAP Type drop down box Note If you want to enable CCKM on the client adapter you must choose the WPA WPA2 CCKM security option regardless of whether you want the adapter to use WPA or WPA2 The configuration of the access point to which your client adapter assoc...

Page 113: ...heck the Use Windows User Name and Password check box If you want to use a distinct username and password which are registered with the RADIUS server to start the PEAP authentication process follow these steps a Enter your PEAP username and password in the corresponding fields Note Your Windows username is filled in automatically Simply delete your Windows username and enter your separate PEAP use...

Page 114: ... assigned does not have WEP set to Optional This is the default setting Note This parameter is available only if the 802 1x security option is selected Note For security reasons Cisco recommends that WEP enabled and WEP disabled clients not be allowed in the same cell because broadcast packets are sent unencrypted even to clients running WEP However you can enable VLANs on the access point to sepa...

Page 115: ...re on a computer running Windows 2000 your computer must have the Microsoft 802 1X supplicant installed Note Host Based EAP is not included in the list of WPA WPA2 CCKM EAP Type options on the Profile Management Security window in ADU because this feature is not supported for use with WPA or WPA2 Step 1 Choose 802 1x under Set Security Options and Host Based EAP in the 802 1x EAP Type drop down bo...

Page 116: ...bling PEAP EAP MSCHAP V2 section on page E 14 if you need help configuring the PEAP EAP MSCHAP V2 settings Step 11 After you have finished the configuration PEAP authentication should begin Depending on the configuration settings you selected you may be prompted for your PEAP username password and domain name Note that you may need to minimize ADU in order to access the pop up window that prompts ...

Page 117: ...ket contents or size Implementing QoS in a wireless LAN makes network performance more predictable and bandwidth usage more effective Cisco recommends that you enable WMM if your computer is running a time sensitive application for QoS aware clients such as voice or video for example Cisco IP SoftPhone QoS and WMM must be enabled on the access point to which the client will associate These feature...

Page 118: ...abling Wi Fi Multimedia Figure 5 17 Wireless Cisco Connection Properties Window Step 4 If the QoS Packet Scheduler is already installed it is included in the list of components that this connection uses If it appears in the list go to Step 8 Otherwise go to the next step to install it Step 5 Click Install The Select Network Component Type window appears see Figure 5 18 ...

Page 119: ...twork Component Type Window Step 6 Choose Service and click Add The Select Network Service window appears see Figure 5 19 Figure 5 19 Select Network Service Window Step 7 Click QoS Packet Scheduler and OK The Wireless Cisco Connection Properties window reappears and the QoS Packet Scheduler is included in the list of connections Step 8 Check the QoS Packet Scheduler check box if it is not checked ...

Page 120: ...enable the QoS Packet Scheduler on a computer running Windows XP Step 1 Click Control Panel Step 2 Double click Network Connections Step 3 Right click your wireless network connection Step 4 Click Properties The Wireless Network Connection Properties window appears see Figure 5 20 Figure 5 20 Wireless Network Connection Properties Window Step 5 Check the QoS Packet Scheduler check box which appear...

Page 121: ...eters that regulate the client adapter s roaming capabilities Figure 5 21 Cisco Aironet 802 11a b g Wireless Adapter Properties Window Follow these steps to access the roaming parameters Step 1 Double click My Computer Control Panel and System Step 2 Click the Hardware tab and Device Manager Step 3 Double click Network Adapters Step 4 Right click Cisco Aironet 802 11a b g Wireless Adapter Step 5 C...

Page 122: ...t the BSS Aging Interval to twice the value of the Scan Valid Interval For example if the Scan Valid Interval is 50 the BSS Aging Interval would be 100 Scan Valid Interval The amount of time in seconds before the client starts scanning for a better access point after reaching the roaming threshold or missing beacons See the threshold criteria in the table below The higher the value the less time t...

Page 123: ...vated The following topics are covered in this chapter Overview page 6 2 Using LEAP or EAP FAST page 6 2 Using LEAP or EAP FAST with the Windows Username and Password page 6 3 Using LEAP or EAP FAST with an Automatically Prompted Login page 6 5 Using LEAP or EAP FAST with a Manually Prompted Login page 6 8 Using LEAP or EAP FAST with a Saved Username and Password page 6 12 Using EAP TLS page 6 13 ...

Page 124: ...word page 6 3 LEAP or EAP FAST with an automatically prompted login page 6 5 LEAP or EAP FAST with a manually prompted login page 6 8 LEAP or EAP FAST with a saved username and password page 6 12 EAP TLS page 6 13 PEAP EAP GTC page 6 14 PEAP EAP MSCHAP V2 page 6 15 Also provided are an overview of LEAP and EAP FAST authentication below and instructions for restarting the authentication process whe...

Page 125: ...e Show minimized next time check box The LEAP or EAP FAST Authentication Status window should now appear for all future LEAP or EAP FAST authentication attempts Using LEAP or EAP FAST with the Windows Username and Password After Profile Activation or Card Insertion After you or auto profile selection activate a profile that uses your Windows username and password for LEAP or EAP FAST authenticatio...

Page 126: ...n windows and click OK The LEAP or EAP FAST Authentication Status window appears Step 2 If your profile is configured for EAP FAST and a message appears asking if you want to auto provision a PAC click Yes Step 3 If your client adapter authenticates the window shows that each stage was successful and then disappears If the authentication attempt fails an error message appears after the authenticat...

Page 127: ...o update your local cached account with your new password Using LEAP or EAP FAST with an Automatically Prompted Login After Profile Activation or Card Insertion After you or auto profile selection activate a profile that uses a separate username and password for LEAP or EAP FAST authentication or you eject and reinsert the client adapter while this profile is active follow these steps to authentic...

Page 128: ... each stage was successful and then disappears ASTU and the Link Status field on the ADU Current Status window show Authenticated If the authentication attempt fails an error message appears after the authentication timeout period has expired Refer to the Error Messages section on page 10 12 for the necessary action to take After a Reboot or Logon After your computer reboots or you log on follow t...

Page 129: ...4 If your client adapter authenticates the window shows that each stage was successful and then disappears The logon or boot up process completes If the authentication attempt fails an error message appears after the authentication timeout period has expired Refer to the Error Messages section on page 10 12 for the necessary action to take After Your EAP FAST Password Expires If the EAP FAST passw...

Page 130: ...llow these steps to authenticate Note If auto profile selection is enabled this procedure is applicable the first time auto profile selection activates a manual LEAP or manual EAP FAST profile After you follow these steps to enter your LEAP or EAP FAST credentials you can switch profiles without having to re enter your credentials until you reboot your computer eject and reinsert your client adapt...

Page 131: ...ASTU and the Link Status field on the ADU Current Status window show Authenticated If the authentication attempt fails an error message appears after the authentication timeout period has expired Refer to the Error Messages section on page 10 12 for the necessary action to take After a Reboot Logon or Card Insertion After your computer reboots you log on or you eject and reinsert the client adapte...

Page 132: ...ication Using LEAP or EAP FAST with a Manually Prompted Login Figure 6 7 Action Drop Down Menu Step 3 When the Enter Wireless Network Password window appears see Figure 6 8 enter your LEAP or EAP FAST username and password and click OK The domain name can be entered in the Log On To field it is optional Figure 6 8 Enter Wireless Network Password Window ...

Page 133: ...ent Status window show Authenticated If the authentication attempt fails an error message appears after the authentication timeout period has expired Refer to the Error Messages section on page 10 12 for the necessary action to take After Your EAP FAST Password Expires If the EAP FAST password for your current profile expires or becomes invalid follow these steps to change your password Step 1 Whe...

Page 134: ...ears after the authentication timeout period has expired Refer to the Error Messages section on page 10 12 for the necessary action to take After a Reboot or Logon After your computer reboots or you log on the following events occur 1 After you enter your Windows username and password the authentication process begins automatically using your saved LEAP or EAP FAST username and password Note If yo...

Page 135: ...new password in both the New Password and Verify New Password fields Step 3 Click OK The client adapter should authenticate using your new password Step 4 Edit the profile in ADU by changing the saved username and password on the EAP FAST Settings window Using EAP TLS After you or auto profile selection activate a profile that uses EAP TLS authentication or you eject and reinsert the client adapte...

Page 136: ... and password entered in the Define PEAP EAP GTC Configuration window If your client adapter authenticates ASTU and the Link Status field on the ADU Current Status window show Authenticated If the authentication attempt fails ASTU and ADU show Authentication Failed OTP Databases Only Step 1 Use your hardware token device or SofToken program to obtain the one time password Step 2 When the Token Con...

Page 137: ...uration window If your client adapter authenticates ASTU and the Link Status field on the ADU Current Status window show Authenticated If the authentication attempt fails ASTU and ADU show Authentication Failed Restarting the Authentication Process To force your client adapter to try to reauthenticate using the username and password of the current profile choose Reauthenticate from the ASTU pop up...

Page 138: ...6 16 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 6 Using EAP Authentication Restarting the Authentication Process ...

Page 139: ...explains how to use ADU to view the client adapter s status and its transmit and receive statistics The following topics are covered in this chapter Overview of ADU Status and Statistics Tools page 7 2 Setting Parameters that Affect ADU Status and Statistics Tools page 7 2 Viewing the Current Status of Your Client Adapter page 7 4 Viewing Statistics for Your Client Adapter page 7 12 ...

Page 140: ...wing functions Display your client adapter s current status and configured settings Display statistics pertaining to your client adapter s transmission and reception of data Table 7 1 enables you to quickly find instructions for using ADU status and statistics tools Setting Parameters that Affect ADU Status and Statistics Tools Several parameters affect the operation of ADU status and statistics t...

Page 141: ...r dBm Default dBm Units Description Displays the signal strength and signal to noise ratio as a percentage dBm Displays the signal strength in decibels with respect to milliwatts dBm and the signal to noise ratio in decibels dB Refresh Interval Specifies how often the ADU status and statistics windows and the ASTU icon are updated Range 1 to 5 seconds between updates in 1 second increments Default...

Page 142: ...ent Adapter Viewing the Current Status of Your Client Adapter ADU enables you to view the current status of your client adapter as well as many of the settings that have been configured for the adapter To view your client adapter s status and settings open ADU The Current Status window appears see Figure 7 2 Figure 7 2 Current Status Window Table 7 3 interprets each element of the Current Status w...

Page 143: ...ure mode or another client in ad hoc mode Authenticating The client adapter is associated to an access point and the EAP authentication process has begun but not yet succeeded Authenticated The client adapter is associated to an access point and the user is EAP authenticated Authentication Failed The client adapter is associated to an access point but the user has failed to EAP authenticate Authen...

Page 144: ...apter is currently using for communications This field displays Scanning while the client adapter searches for a channel Value Dependent on radio band and regulatory domain Note Refer to the Channel parameter in Table 5 3 for information on setting the channel for your client adapter Note Refer to Appendix D for a list of channel identifiers channel center frequencies and regulatory domains for ea...

Page 145: ...in Table 5 2 for information on setting the client adapter s SSID Server Based Authentication The method by which authentication to a back end server is being performed to establish secure connectivity Value None LEAP EAP FAST EAP TLS PEAP EAP GTC PEAP EAP MSCHAP V2 or Host Based EAP Refer to the Overview of Security Features section on page 5 14 for details on these server based authentication ty...

Page 146: ... page 5 6 for information on setting the 802 11 authentication mode Message Integrity Check Indicates whether your client adapter is using message integrity check MIC to protect packets sent to and received from the access point 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 recei...

Page 147: ...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 later Note This field shows up to 15 characters although the name of the access point may be longer Associated AP IP Address The IP address of the access point to which your client adapter is associated It ...

Page 148: ...y agency Value 10 13 20 25 or 40 mW 802 11a band 10 20 30 50 63 or 100 mW 802 11b g band Note Refer to the Transmit Power Level parameter in Table 5 3 for information on the client adapter s available power levels Current Signal Strength The signal strength for all received packets The higher the value the stronger the signal Range 0 to 100 or 0 to 100 dBm Current Signal Quality The signal quality...

Page 149: ... that your client adapter is currently using for communications This field displays Scanning while the client adapter searches for a channel Value Dependent on radio band and regulatory domain Note Refer to the Channel parameter in Table 5 3 for information on setting the channel for your client adapter Note Refer to Appendix D for a list of channel identifiers channel center frequencies and regul...

Page 150: ...b The Cisco Aironet Desktop Utility Diagnostics window appears see Figure 7 4 Figure 7 4 Cisco Aironet Desktop Utility Diagnostics Window This window displays basic transmit and receive statistics for your client adapter The statistics are calculated on a relative or cumulative basis as specified by the Data Display parameter and are continually updated at the rate specified by the Refresh Interva...

Page 151: ... Basic Client Adapter Statistics Statistic Description Transmit Statistics Multicast Packets The number of multicast packets that were transmitted Broadcast Packets The number of broadcast packets that were transmitted Unicast Packets The number of unicast packets that were transmitted successfully Total Bytes The number of bytes of data that were transmitted successfully Receive Statistics Multic...

Page 152: ...s This field keeps track of each time the client does not receive a CTS back from the access point Retried RTS Frames The number of request to send RTS frames that were retransmitted Retried Data Frames The number of normal data frames that were retransmitted Receive Statistics Beacons Received The number of beacon frames that were received successfully Frames Received OK The number of all frames ...

Page 153: ...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 Standard MIC OK The number of frames that were received with the correct message integrity check MIC value Standard MIC Errors The number of frames that were discarded due to an incorrect message integrity check MIC value C...

Page 154: ...6 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 7 Viewing Status and Statistics Viewing Statistics for Your Client Adapter ...

Page 155: ...3 8 Using the Aironet System Tray Utility ASTU This chapter explains how to use the Aironet System Tray Utility ASTU to access status information about your client adapter and perform basic tasks The following topics are covered in this chapter Overview of ASTU page 8 2 The ASTU Icon page 8 2 Tool Tip Window page 8 3 Pop Up Menu page 8 5 ...

Page 156: ...icon indicates the connection status of your client adapter ASTU reads the client adapter status and updates the icon every 1 to 5 seconds depending on the value entered for the Refresh Interval on the Display Settings window Table 8 1 interprets the different appearances of the ASTU icon Note Windows 2000 and XP may display their own wireless network connection status icon in the system tray Cisc...

Page 157: ...tion and the signal strength is fair A red icon indicates that the client adapter is associated to an access point in infrastructure mode or another client in ad hoc mode the user is authenticated if the client adapter is configured for EAP authentication and the signal strength is poor Table 8 1 Interpreting the ASTU Icon continued Icon Description Table 8 2 Tool Tip Window Elements Status Elemen...

Page 158: ...ted to an access point and the EAP authentication process has begun but not yet succeeded Authenticated The client adapter is associated to an access point and the user is EAP authenticated Authentication Failed The client adapter is associated to an access point but the user has failed to EAP authenticate Note This status may appear very briefly or not at all as the authentication failure may res...

Page 159: ...nu options these options do not appear in the menu and therefore cannot be selected Help This option enables you to access the online help Link quality The client adapter s signal strength for all received packets Value Excellent Good Fair Poor or No Link Link speed and 802 11 mode The rate at which your client adapter is currently transmitting data packets and the 802 11 mode that your client ada...

Page 160: ...y Icon option from the ADU Action drop down menu Open Aironet Desktop Utility This option activates ADU Troubleshooting This option activates the 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 3 for detailed instructions on using this utility Preferen...

Page 161: ...ble or enable the client adapter s radio Disabling the radio prevents the adapter from transmitting RF energy You might want to disable the client adapter s radio in the following situations You are not transmitting data and want to conserve battery power You are using a laptop on an airplane and want to prevent the adapter s transmissions from potentially interfering with the operation of certain...

Page 162: ...ars indicating that the current profile will be disabled until you choose the Reauthenticate option reboot your computer or eject and reinsert the client adapter Select Profile This option enables you to select the active profile for your client adapter When you choose this option a profiles submenu appears see Figure 8 4 Figure 8 4 Profiles Submenu From this menu you can choose between the follow...

Page 163: ...mode or another client in ad hoc mode using the parameters that were configured for that profile If the client adapter cannot associate to the access point or other client or loses association while using the selected profile the adapter does not attempt to associate using another profile To get it to associate you must select a different profile or select Use Auto Profile Selection Simply click t...

Page 164: ...ssociated The client adapter has established a connection to an access point in infrastructure mode or another client in ad hoc mode Authenticating The client adapter is associated to an access point and the EAP authentication process has begun but not yet succeeded Authenticated The client adapter is associated to an access point and the user is EAP authenticated Authentication Failed The client ...

Page 165: ... 12 2 4 JA or later Note This field shows up to 15 characters although the name of the access point may be longer 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 IO...

Page 166: ...8 12 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 8 Using the Aironet System Tray Utility ASTU Pop Up Menu ...

Page 167: ...iguration Guide OL 4211 03 9 Routine Procedures This chapter provides procedures for common tasks related to the client adapter The following topics are covered in this chapter Removing a Client Adapter page 9 2 Client Adapter Software Procedures page 9 3 Enabling or Disabling Your Client Adapter s Radio page 9 9 ...

Page 168: ... your connection to the network should be re established Note If you need to remove your 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 choose the Cisco Aironet client adapter you want to remove under Hardware devices click Stop and click OK to close each open window Then pull the card directly out of the card sl...

Page 169: ...1AG client adapter software to a more recent release using the settings that were selected during the last installation Note If you want to upgrade your client adapter software using new installation settings uninstall the previous installation see the instructions on page 9 6 then install the new software see the instructions on page 3 9 Step 1 Make sure the client adapter is inserted in your com...

Page 170: ...ess LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 9 Routine Procedures Client Adapter Software Procedures Figure 9 1 Preparing Setup Window Figure 9 2 Previous Installation Detected Window ...

Page 171: ...estart your computer at the end of the installation process click Yes Note If you click No you are asked to confirm your decision If you proceed the installation process terminates The Setup Status window appears see Figure 9 3 Figure 9 3 Setup Status Window The upgrade process begins and you are notified as each software component is installed Step 6 When a message appears indicating that your co...

Page 172: ...le Note If you do not have the Install Wizard s setup exe file you can access the client adapter software by clicking Control Panel Add Remove Programs Cisco Aironet Installation Program Remove Then follow the steps below beginning with the Preparing Setup window in Step 3 Step 3 Double click the file The Starting InstallShield Wizard message appears followed by the Preparing Setup window see Figu...

Page 173: ...page 9 9 Opening ADU To open ADU perform one of the following Double click the Aironet Desktop Utility icon on your desktop Choose Aironet Desktop Utility from the folder in the Windows Start Menu that you chose during installation the default location is Start Programs Cisco Aironet Aironet Desktop Utility Right click the ASTU icon in the Windows system tray and choose Open Aironet Desktop Utilit...

Page 174: ...ps to find the current version of ADU Step 1 Open ADU Step 2 Choose the About Aironet Desktop Utility option from the Help drop down menu The About window appears see Figure 9 5 Figure 9 5 About Window Viewing Client Adapter Information To view information about your client adapter open ADU Click the Diagnostics tab and Adapter Information The Adapter Information window appears see Figure 9 6 Figu...

Page 175: ...vent the adapter s transmissions from potentially interfering with the operation of certain devices When the radio is enabled it periodically sends out probes even if it is not associated to an access point in infrastructure mode or another client in ad hoc mode as required by the 802 11 specification Therefore it is important to disable it around devices that are susceptible to RF interference No...

Page 176: ...emains disabled when the computer resumes You must enable the radio to resume operation You can use ADU or ASTU to enable or disable the client adapter s radio Follow the instructions below to use ADU or refer to the Enable Disable Radio section on page 8 7 to use ASTU If your client adapter s radio is enabled open ADU and choose Disable Radio from the Action drop down menu see Figure 9 4 to disab...

Page 177: ...his chapter provides information for diagnosing and correcting common problems that may occur when you install and operate the client adapter The following topics are covered in this chapter Accessing the Latest Troubleshooting Information page 10 2 Interpreting the Indicator LEDs page 10 2 Troubleshooting the Client Adapter page 10 3 Error Messages page 10 12 ...

Page 178: ...ing Interpreting the Indicator LEDs The client adapter shows messages through its two LEDs Table 10 1 interprets the LED operating messages Table 10 1 LED Operating Messages Status LED green Activity LED amber Condition Off Off Client adapter is not receiving power Blinking slowly Off Client adapter is in power save mode On Off Client adapter has awakened from power save mode Alternating blink Cli...

Page 179: ... s operation save a detailed report to a text file or access online help Diagnosing Your Client Adapter s Operation Step 1 Perform one of the following to activate the troubleshooting utility Open ADU choose Troubleshooting from the Action drop down menu Open ADU click the Diagnostics tab and Troubleshooting Right click the ASTU icon choose Troubleshooting from the pop up menu The Troubleshooting ...

Page 180: ...hooting Utility Window Step 2 Click Run Test The utility performs the following series of seven tests to check the operation of your client adapter and to identify specific problems if they exist 1 Driver installation test 2 Card insertion test 3 Card enable test 4 Radio test 5 Association test 6 Authentication test 7 Network test The utility runs and then displays the results for each test see Fi...

Page 181: ...ssed The test completed successfully Test bypassed The test was skipped because it was not required for the active profile Test failed The test failed Follow the instructions in Step 3 to obtain more details Note You can click Stop Test at any time to stop the testing process or you can click Start Test after the testing process has stopped to run the test again Step 3 To view more detailed inform...

Page 182: ...ty Window Detailed Report Note The report contains valuable information that if necessary could be used by your system administrator or TAC to analyze any problems Follow the instructions in the next section if you want to save the report to a text file Step 4 If a problem is discovered the report provides some possible repair suggestions Follow the repair instructions carefully and run the troubl...

Page 183: ...rive Step 1 Click Save Report The Save Report window appears see Figure 10 4 Figure 10 4 Save Report Window Step 2 Enter a name for the detailed report in the File name field The report is saved as a txt file Step 3 Use the Save in box at the top of the window to specify the location on your computer s hard drive where the file will be saved Note The default location is the directory where ADU is ...

Page 184: ...s Disabling the Microsoft 802 1X Supplicant Windows 2000 Only The Microsoft 802 1X supplicant can be installed on a computer running Windows 2000 through either a Microsoft hot fix or Windows 2000 Service Pack 4 If any conflicts arise between ADU and the Microsoft 802 1X supplicant follow these steps to disable the Microsoft supplicant on a Windows 2000 computer Note The Microsoft 802 1X supplican...

Page 185: ...System Step 2 Click the Hardware tab and Device Manager Step 3 Double click Network Adapters and the Cisco Systems Wireless LAN Adapter Step 4 In the General window the Device Status field indicates if a resource problem exists If a problem is indicated click the Resources tab Step 5 Uncheck the Use automatic settings check box Step 6 Under Resource Settings or Resource Type click Input Output Ran...

Page 186: ... Step 9 Click OK Step 10 Under Resource Settings click IRQ Step 11 Look in the Conflicting Device list at the bottom of the window If it indicates that the IRQ is being used by another device click the Change Setting button Step 12 Scroll through the IRQs in the Value dialog box and choose one that does not conflict with another device The Conflict Information window at the bottom of the window in...

Page 187: ...tion at the top of the window Step 4 Click Advanced Settings Your network connections are listed in the Connections box on the Adapters and Bindings tab Step 5 Use the arrows beside the Connections box to move the network connection that you want to use to the top Step 6 Click OK Parameters Missing from Profile Management Windows If some parameters are unavailable on the Profile Management windows...

Page 188: ...les that use this PAC once the PAC is deleted Explanation You are about to delete a PAC from either the Global or Private PAC store Recommended Action If you want to delete the PAC click Yes Otherwise click No Error Message At least one wireless checkbox must be selected Explanation You clicked OK or selected another Profile Management tab before selecting any Wireless Mode options on the Profile ...

Page 189: ...icate Recommended Action Contact your system administrator Error Message Authentication failed due to invalid server domain name Explanation The domain logon failed because of an invalid server domain name Recommended Action Make sure the Specific Server or Domain field is blank on the Advanced Configuration window for PEAP EAP GTC or PEAP EAP MSCHAP V2 Then follow the instructions in the Enabling...

Page 190: ...be used to control your client adapter Recommended Action If you want to switch control from the Microsoft Wireless Configuration Manager to ADU click Yes Otherwise click No Error Message Entry must be xx characters long Please enter xx more characters Explanation The static WEP key that you entered on the Define Pre Shared Keys window does not contain the correct number of characters Recommended ...

Page 191: ...ntication but no certificates are installed on your computer Recommended Action Modify the profile s configuration settings Error Message Make sure the same new password is entered twice Explanation You did not enter the same EAP FAST password in both the New Password and Verify New Password fields on the Please Change Password window Recommended Action Carefully re enter your new EAP FAST passwor...

Page 192: ... on the Preferred Access Points window Recommended Action Leave the fields on the Preferred Access Points window empty or re enter the MAC address for the specified access point which must be exactly 12 characters Error Message The configuration name you entered is already being used Enter a unique name Explanation While creating a new profile you entered a profile name on the Profile Management G...

Page 193: ...ile with the same PAC ID as a previously imported PAC file Recommended Action Click Yes to replace the existing PAC with the new one from the imported file or click No to cancel the operation Error Message The new password must be different from the old password Explanation You entered your old EAP FAST password in the New Password and or Verify New Password fields on the Please Change Password wi...

Page 194: ...gs window and save your changes If you click Yes the profile is disabled until you choose Reauthenticate from ASTU or the Action drop down menu in ADU reboot your system or eject and reinsert the card Error Message The specified path does not exist Please enter another path Explanation You chose the Make Driver Installation Diskette s option during installation but a diskette was not inserted in t...

Page 195: ...ing the existing profile Make sure to enter your username and password correctly If the authentication attempt fails again import a new PAC or delete the old PAC is automatic PAC provisioning is enabled Error Message Unable to copy PAC data Make sure you have access rights Explanation Your attempt to copy a PAC from the private store to the global store failed You may not have the necessary permis...

Page 196: ...ys window contains non hexadecimal characters even though Hexadecimal is specified as the Key Entry type Recommended Action Re enter the static WEP key following the guidelines in the Enabling Static WEP section on page 5 24 Error Message x is not a hexadecimal character Explanation The character you entered on the Define Pre Shared Keys window is not a hexadecimal character Recommended Action Re ...

Page 197: ...you have a current valid PAC Recommended Action If you want to attempt to auto provision a PAC from the server click Yes Otherwise click No If you choose No a message appears indicating that the client adapter was unable to EAP FAST authenticate Error Message You failed to change your EAP FAST domain network password Make sure you enter a new password that complies with the password policy and try...

Page 198: ...keys and WPA WPA2 Explanation You chose the WPA WPA2 Passphrase option on the Profile Management Security window and clicked OK without entering a Passphrase Recommended Action Enter a WPA WPA2 Passphrase on the Define WPA WPA2 Pre Shared Key window Error Message You must set at least one Pre Shared Key Explanation You chose the Pre Shared Key Static WEP option on the Profile Management Security w...

Page 199: ...logon process Confirm if you want to copy the selected PAC into the global PAC store Explanation You selected a private PAC and the No Network Connection Unless User Is Logged In check box is unchecked Therefore the PAC may not be accessible during domain logon or when you are logged off Recommended Action If you want a copy of the PAC to be added to the global store so that it will be available w...

Page 200: ...10 24 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Chapter 10 Troubleshooting Error Messages ...

Page 201: ...A Technical Specifications This appendix provides technical specifications for the Cisco Aironet CB21AG and PI21AG Wireless LAN Client Adapters The following topics are covered in this appendix Physical Specifications page A 2 Radio Specifications page A 2 Power Specifications page A 6 Safety and Regulatory Compliance Specifications page A 6 ...

Page 202: ... 1 8 cm W x 7 9 cm H Weight PC Cardbus card 1 55 oz 44 g PCI card Standard PCI card with antenna 3 6 oz 103 g Standard PCI card without antenna 1 9 oz 55 g Low profile PCI card with antenna 3 5 oz 98 g Low profile PCI card without antenna 1 7 oz 49 g Enclosure PC Cardbus card Type II Cardbus PCI card Standard or low profile Type II PCI Connector PC Cardbus card 68 pin Cardbus PCI card 62 pin PCI S...

Page 203: ...Note The maximum power setting varies according to individual country regulations Operating frequency 802 11a 5 15 to 5 25 GHz in the UNII 1 band 5 25 to 5 35 GHz in the UNII 2 band 5 470 to 5 725 GHz in the European band 5 725 to 5 825 GHz in the UNII 3 band Depending on the regulatory domain in which the client adapter is used 802 11b g 2 400 to 2 497 GHz depending on the regulatory domain in wh...

Page 204: ...s 85 dBm 18 Mbps 82 dBm 24 Mbps 79 dBm 36 Mbps 74 dBm 48 Mbps 72 dBm 54 Mbps 5470 to 5725 MHz 87 dBm 6 9 12 and 18 Mbps 82 dBm 24 Mbps 79 dBm 36 Mbps 74 dBm 48 Mbps 72 dBm 54 Mbps 5725 to 5805 MHz 84 dBm 6 9 and 12 Mbps 83 dBm 18 Mbps 82 dBm 24 Mbps 79 dBm 36 Mbps 72 dBm 48 Mbps 65 dBm 54 Mbps 802 11b g 94 dBm 1 Mbps 93 dBm 2 Mbps 92 dBm 5 5 Mbps 90 dBm 11 Mbps 86 dBm 6 9 12 and 18 Mbps 84 dBm 24 ...

Page 205: ...ss Point with a 3 5 dBi dipole antenna Different range characteristics are likely when using the client adapter with a different access point or a Cisco Aironet 1200 Series Access Point with a different antenna 802 11b g Indoor typical Outdoor typical 410 ft 125 m 1 Mbps 700 ft 213 m 1 Mbps 300 ft 91 m 6 Mbps 650 ft 198 m 6 Mbps 220 ft 67 m 11 Mbps 490 ft 149 m 11 Mbps 180 ft 55 m 18 Mbps 400 ft 1...

Page 206: ...mum 802 11g 530 mA maximum Sleep mode steady state 203 mA average Safety and Regulatory Compliance Specifications Safety Designed to meet UL 60950 CSA 22 2 No 60950 IEC 60950 Second Ed including Amendments 1 4 with all national deviations EN 60950 Second Ed including Amendments 1 4 EMI and susceptibility FCC Part 15 107 15 109 Class B ICES 003 Class B Canada VCCI Japan EN 301 489 1 and EN 301 489 ...

Page 207: ...his appendix provides translations of the safety warnings that appear in this publication The second warning pertains to the PI21AG client adapter and the third warning pertains to the CB21AG client adapter The following topics are covered in this appendix Explosive Device Proximity Warning page B 2 Antenna Installation Warning page B 3 Warning for Laptop Users page B 4 ...

Page 208: ... si l équipement a été modifié à cet effet Warnung Benutzen Sie Ihr drahtloses Netzwerkgerät nicht in der Nähe ungeschützter Sprengkapseln oder anderer explosiver Stoffe es sei denn Ihr Gerät wurde eigens für diesen Gebrauch modifiziert und bestimmt Avvertenza Non utilizzare la periferica di rete senza fili in prossimità di un detonatore non protetto o di esplosivi a meno che la periferica non sia...

Page 209: ... de 20 cm de toute personne Warnung Um die in den FCC Richtlinien festgelegten Expositionshöchstgrenzen für Radiofrequenzen RF nicht zu überschreiten sollten antennen mindestens 20 cm 7 9 Zoll vom Körper aller Person entfernt aufgestellt werden Avvertenza Per conformarsi ai limiti FCC di esposizione a radiofrequenza RF le antenne a devono stare ad una distanza minima di 20 cm dal corpo di ogni per...

Page 210: ...re antennes of zenders worden gebruikt en ook niet in de buurt van andere antennes of zenders worden geplaatst Varoitus Tämä laite on testattu ja se noudattaa FCC n määrittämiä radiotaajuussäteilylle altistumisen SAR raja arvoja tyypillisissä kannettavien tietokoneiden kokoonpanoissa Tätä laitetta voidaan käyttää pöytä tai kannettavissa tietokoneissa joiden sivussa on PC korttipaikka Korttipaikass...

Page 211: ...ar kortplass på siden og der det er minst 1 cm avstand mellom antennen og brukeren eller andre personer Ved bruk av flate bærbare PCer må du være ekstra påpasselig med antenneavstanden Denne enheten kan ikke brukes sammen med håndholdte PDAer personal digital assistant Det er ikke sikkert at bruk i andre konfigurasjoner vil være i samsvar med retningslinjene for FCC RF eksponering Denne enheten og...

Page 212: ...torer med sidmonterade PC kortöppningar som kan tillhandahålla minst 1 cm med separationsavstånd mellan antennen och användarens kropp eller annan person i närheten Tunna bärbara datorer kan behöva speciell uppmärksamhet för att upprätthålla antennavståndet under användning Den här enheten kan inte användas med handdator PDA Vid användning i andra konfigurationer går det inte att garantera att FCC...

Page 213: ... Wireless LAN Client Adapters The following topics are covered in this appendix Manufacturer s Federal Communication Commission Declaration of Conformity Statement page C 2 Department of Communications Canada page C 3 European Community Switzerland Norway Iceland and Liechtenstein page C 3 Declaration of Conformity for RF Exposure page C 7 Guidelines for Operating Cisco Aironet Wireless LAN Client...

Page 214: ...tion distance from the antenna to the body of the user or a nearby person Thin laptop computers may need special attention to maintain antenna spacing while operating The PI21AG client adapter has been tested and complies with FCC RF Exposure SAR limits in typical desktop computer configurations A separation distance of 7 9 in 20 cm must be maintained between this device s antenna and the body of ...

Page 215: ...ire the user to obtain a license for the system according to the Canadian regulations For further information contact your local Industry Canada office European Community Switzerland Norway Iceland and Liechtenstein Declaration of Conformity with Regard to the R TTE Directive 1999 5 EC English This equipment is in compliance with the essential requirements and other relevant provisions of Directiv...

Page 216: ...dapters Note This equipment is intended to be used in all EU and EFTA countries Outdoor use may be restricted to certain frequencies and or may require a license for operation For more details contact your customer service representative Nederlands Deze apparatuur voldoet aan de belangrijkste eisen en andere voorzieningen van richtlijn 1999 5 EC Norsk Dette utstyret er i samsvar med de grunnleggen...

Page 217: ...d PI21AG Installation and Configuration Guide OL 4211 03 Appendix C Declarations of Conformity and Regulatory Information European Community Switzerland Norway Iceland and Liechtenstein Declaration of Conformity Statement Cisco Aironet CB21AG Wireless LAN Client Adapter ...

Page 218: ...Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Appendix C Declarations of Conformity and Regulatory Information European Community Switzerland Norway Iceland and Liechtenstein Cisco Aironet PI21AG Wireless LAN Client Adapter ...

Page 219: ...ish Note The use of 5 GHz devices is limited to indoor use in Japan Japanese Translation English Translation This equipment operates in the same frequency bandwidth as industrial scientific and medical devices such as microwave ovens and mobile object identification RF ID systems licensed premises radio stations and unlicensed specified low power radio stations used in factory production lines 1 B...

Page 220: ... English Translation Administrative Rules for Low power Radio Frequency Devices Article 14 For those low power radio frequency devices that have already received a type approval companies business units or users should not change its frequencies increase its power or change its original features and functions Article 17 The operation of the low power radio frequency devices is subject to the condi...

Page 221: ...ronet Wireless LAN Client Adapters in Taiwan The operation of the low power radio frequency devices is subject to the interference caused by the operation of an authorized radio station by another intentional or unintentional radiator by industrial scientific and medical ISM equipment or by an incidental radiator 5 GHz Client Adapters Chinese Translation English Translation This equipment is limit...

Page 222: ...reless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Appendix C Declarations of Conformity and Regulatory Information Administrative Rules for Cisco Aironet Wireless LAN Client Adapters in Taiwan ...

Page 223: ...D I X D Channels Power Levels and Antenna Gains This appendix lists the IEEE 802 11a b and g channels supported by the world s regulatory domains as well as the maximum power levels and antenna gains allowed per data rate The following topics are covered in this appendix Channels page D 2 Maximum Power Levels and Antenna Gains page D 4 ...

Page 224: ...r usage except America A which allows for indoor and outdoor use on channels 52 through 161 in the United States Table D 1 Channels for IEEE 802 11a Channel Identifier Frequency in MHz Regulatory Domains America A EMEA E Japan J Rest of World W 34 5170 X 36 5180 X X X 38 5190 X 40 5200 X X X 42 5210 X 44 5220 X X X 46 5230 X 48 5240 X X X 52 5260 X X X 56 5280 X X X 60 5300 X X X 64 5320 X X X 100...

Page 225: ...1 through 8 are for indoor use only while channels 9 through 11 can be used indoors and outdoors Users are responsible for ensuring that the channel set configuration is in compliance with the regulatory standards of Mexico Note In Japan channel 14 is not supported for 802 11g mode Table D 2 Channels for IEEE 802 11b g Channel Identifier Frequency in MHz Regulatory Domains America A EMEA E Japan J...

Page 226: ... 11b An improper combination of power level and antenna gain can result in equivalent isotropic radiated power EIRP above the amount allowed per regulatory domain Table D 4 indicates the maximum EIRP allowed for each data rate in the IEEE 802 11b regulatory domains Table D 3 Maximum EIRP for IEEE 802 11a Data Rate Maximum EIRP for PC Cardbus Card with 0 dBi Antenna Gain and PCI Card with 1 dBi Ant...

Page 227: ...nna gain can result in equivalent isotropic radiated power EIRP above the amount allowed per regulatory domain Table D 5 indicates the maximum EIRP allowed for each data rate in the IEEE 802 11g regulatory domains Table D 5 Maximum EIRP for IEEE 802 11g Data Rate Maximum EIRP for PC Cardbus Card with 0 dBi Antenna Gain and PCI Card with 1 dBi Antenna Gain mW dBm 6 Mbps 50 17 9 Mbps 50 17 12 Mbps 5...

Page 228: ...sco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 Appendix D Channels Power Levels and Antenna Gains Maximum Power Levels and Antenna Gains ...

Page 229: ...lient Adapter through the Windows XP Operating System This appendix explains how to configure and use the client adapter with Windows XP The following topics are covered in this appendix Overview page E 2 Configuring the Client Adapter page E 5 Associating to an Access Point Using Windows XP page E 18 Viewing the Current Status of Your Client Adapter page E 18 ...

Page 230: ...ion keys With WEP encryption the transmitting device encrypts each packet with a WEP key and the receiving device uses that same key to decrypt each packet The WEP keys used to encrypt and decrypt transmitted data can be statically associated with your adapter or dynamically created as part of the EAP authentication process The information in the Static WEP Keys and EAP with Dynamic WEP Keys secti...

Page 231: ... authentication is based on EAP TLS authentication but uses a password instead of a client certificate for authentication PEAP EAP MSCHAP V2 uses a dynamic session based WEP key derived from the client adapter and RADIUS server to encrypt data RADIUS servers that support PEAP EAP MSCHAP V2 authentication include Cisco Secure ACS release 3 2 or later PEAP EAP GTC Although this authentication type i...

Page 232: ...n them 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 en US products sw iosswrel ps1835 products_configuration_guide_chapter0918 6a00800ca7ab html WPA Wi Fi Protected Access WPA is a standards based security solution from the Wi Fi Alliance that provides data protection an...

Page 233: ...ate certificates must be installed on your computer if you are planning to enable EAP TLS or PEAP authentication EAP TLS requires both a Certificate Authority CA certificate and a user certificate while PEAP requires only a CA certificate Contact your system administrator if you need help obtaining and importing the necessary certificates Step 1 Make sure the client adapter s driver has been insta...

Page 234: ...work settings check box is checked Step 7 Choose the SSID of the access point to which you want the client adapter to associate from the list of available networks and click Configure If the SSID of the access point you want to use is not listed or you are planning to operate the client adapter in an ad hoc network a computer to computer network without access points click Add Note The Allow Broad...

Page 235: ...e of the following If you chose an SSID from the list of available networks make sure the SSID appears in the Network name SSID field If you clicked Add enter the case sensitive SSID of the access point or the ad hoc network to which you want the client adapter to associate in the Network name SSID field Step 9 Check the This is a computer to computer ad hoc mode network wireless access points are...

Page 236: ...key authentication because shared key authentication requires the use of a WEP key and a WEP key is not set for EAP TLS until after the completion of EAP authentication WPA Enables WPA which enables your client adapter to associate to access points using WPA WPA PSK Enables WPA pre shared key WPA PSK which enables your client adapter to associate to access points using WPA PSK Note The WPA None op...

Page 237: ...ers if your client adapter will be used with these access points Your client adapter s WEP key must match the WEP key used by the access point in infrastructure mode or clients in ad hoc mode with which you are planning to communicate c In the Key index advanced field choose the number of the WEP key you are creating 1 2 3 or 4 Note The WEP key must be assigned to the same number on both the clien...

Page 238: ...on follow the instructions in the Enabling EAP TLS Authentication section on page E 10 If you are planning to use PEAP authentication follow the instructions in the Enabling PEAP Authentication section on page E 13 Enabling EAP TLS Authentication Follow the steps below to prepare the client adapter to use EAP TLS authentication provided you have completed the initial configuration Step 1 Click the...

Page 239: ...ck box if you did not enable WPA on the Association window Step 3 For EAP type choose Smart Card or other Certificate Step 4 Click Properties The Smart Card or other Certificate Properties window appears see Figure E 4 Figure E 4 Smart Card or other Certificate Properties Window Step 5 Choose the Use a certificate on this computer option Step 6 Check the Use simple certificate selection Recommende...

Page 240: ...ration is complete Step 11 If a pop up message appears above the system tray informing you that you need to accept a certificate to begin the EAP authentication process click the message and follow the instructions provided to accept the certificate Note You should not be prompted to accept a certificate for future authentication attempts After you accept one the same certificate is used subsequen...

Page 241: ... Wireless Network Properties Window Authentication Tab Step 2 Check the Enable IEEE 802 1x authentication for this network check box if you did not enable WPA on the Association window Step 3 For EAP type choose one of the following depending on the software that is installed on your computer Protected EAP PEAP This option appears for PEAP EAP MSCHAP V2 PEAP This option appears for PEAP EAP GTC No...

Page 242: ...ted EAP PEAP follow the instructions in the Enabling PEAP EAP MSCHAP V2 section below If you chose PEAP follow the instructions in the Enabling PEAP EAP GTC section on page E 16 Enabling PEAP EAP MSCHAP V2 Follow the steps below to enable PEAP EAP MSCHAP V2 Step 1 Click Properties The Protected EAP Properties window appears see Figure E 8 Figure E 6 Protected EAP Properties Window Step 2 Check the...

Page 243: ...usted Root Certification Authorities field choose the certificate authority from which the server certificate was downloaded Step 5 In the Select Authentication Method drop down box choose Secured password EAP MSCHAP v2 Step 6 Click Configure The EAP MSCHAPv2 Properties window appears see Figure E 7 Figure E 7 EAP MSCHAPv2 Properties Window Step 7 Make sure the Automatically use my Windows logon n...

Page 244: ...er 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 lon...

Page 245: ...ndows NT 2000 LDAP option in Step 7 go to Step 9 If you chose the One Time Password option in Step 7 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...

Page 246: ...ses the client adapter s driver to automatically attempt to associate to the first network in the list of preferred networks see Figure E 1 If the adapter fails to associate or loses association it automatically switches to the next network in the list of preferred networks The adapter does not switch networks as long as it remains associated to the access point To force the client adapter to asso...

Page 247: ...used when conducting a site survey The following topics are covered in this appendix Overview page F 2 Opening the Site Survey Utility page F 3 Selecting the Client Adapter page F 3 Using the Associated AP Status Tab page F 4 Using the AP Scan List Tab page F 8 Finding the Version of the Site Survey Utility page F 15 Accessing Online Help page F 15 Exiting the Site Survey Utility page F 15 Uninsta...

Page 248: ...preparing to perform a site survey Perform the site survey when the RF link is functioning with all other systems and noise sources operational Execute the site survey entirely from the mobile station Additional Information Also consider the following operating and environmental conditions when performing a site survey Data rates Sensitivity and range are inversely proportional to data bit rates T...

Page 249: ...ation of the client adapter software If you did not check this check box and want to use the site survey utility uninstall the client adapter software and reinstall it making sure to check the site survey check box Selecting the Client Adapter Note The site survey utility is supported for use with only CB21AG and PI21AG client adapters When the site survey utility starts it scans for client adapte...

Page 250: ...ng used with the utility and its current association status Associated Not Associated or Device Not Present Figure F 2 Site Survey Utility Top of Main Window Using the Associated AP Status Tab You can perform two functions from the Associated AP Status tab Specify display units page F 4 View the access point s status page F 5 Follow the instructions on the pages indicated to perform these function...

Page 251: ...ss Point s Status The Associated AP Status tab shows the status of the access point to which your client adapter is associated Figure F 3 shows the tab with display units shown in dBm and Figure F 4 shows the tab with display units shown as a percentage Figure F 3 Site Survey Utility Associated AP Status Tab with Display Units in dBm Figure F 4 Site Survey Utility Associated AP Status Tab with Dis...

Page 252: ...and or IP address Aironet Extensions are enabled on access points running Cisco IOS release 12 2 4 JA or greater and the access point transmits this information Note This field shows up to 15 characters for the access point name although the name may be longer Note If Aironet Extensions are disabled the IP address of the associated access point is shown as 0 0 0 0 Note This field displays the MAC ...

Page 253: ... quality over time Differences in signal quality are indicated by the following colors green highest quality yellow average and red lowest quality Range 0 to 100 Note This parameter appears only if the Display in Percent check box is checked Beacons Received The percentage of beacon packets received from the access point versus those expected to be received The higher the value and the wider the b...

Page 254: ... Good Excellent 0 to 50 dB Note This parameter appears only if the Display in Percent check box is unchecked Overall Link Quality A combination of signal strength and signal quality The higher the value and the wider the bar graph the better the client adapter s ability to communicate with the access point The trend graph to the right of the bar graph provides a visual interpretation of the overal...

Page 255: ...view the AP scan list click the AP Scan List tab The AP scan list appears see Figure F 5 Figure F 5 Site Survey Utility AP Scan List To view the entire list of access points and all their information perform one of the following Click the resize tab in the lower right corner of the main window and drag it until the window reaches the desired size Use the vertical and horizontal scroll bars Click t...

Page 256: ...access point for additional information MAC Address The access point s MAC address Note This field displays the MAC address of the access point s Ethernet port for access points that do not run Cisco IOS software or the MAC address of the access point s radio for access points that run Cisco IOS software The MAC address of the Ethernet port on access points that run Cisco IOS software is printed o...

Page 257: ... status and the information that it transmits Values Ad Hoc Power Qos RM Normal RM Source and Ssidl Value Description Ad Hoc Indicates that the device is not an access point but another client adapter operating in ad hoc mode Power Indicates whether the access point can limit the transmitting power of the client adapter If so the power limit is also shown in milliwatts mW Qos Indicates whether the...

Page 258: ...led Information window Note The AP Detailed Information window contains tegxt summaries of all the information elements present in the access point s beacon or probe response As a result the window may contain different information than that described in Table F 3 Table F 3 Site Survey Utility AP Detailed Information Detailed Information Parameter Description SSID The network name or service set i...

Page 259: ...s point beacons in Kilomicroseconds Kµsec Note One Kµsec equals 1 024 microseconds ATIMWindow Announcement traffic information message ATIM window The brief time period immediately following the transmission of each beacon in an ad hoc network This value is expressed in Kilomicroseconds Kµsec Note One Kµsec equals 1 024 microseconds Note This parameter s value is 0 when the device is operating in ...

Page 260: ... location during installation Note If the AP scan list is paused when you click Log Snapshot the currently displayed data not the latest available data is added to the log Note Each time you click Log Snapshot the new scan list is written at the end of the existing log file To view the log file find and open the file SST_APScanLog txt using Windows Explorer The log file appears see Figure F 7 Note...

Page 261: ... appears see Figure F 8 Figure F 8 Site Survey Utility About Window Accessing Online Help To access the site survey utility s online help choose Contents from the Help drop down menu Exiting the Site Survey Utility To exit the site survey utility perform one of the following Click the X in the top right corner of the main window Choose Exit from the Action drop down menu Uninstalling the Site Surv...

Page 262: ... Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide for Windows OL 4211 03 Appendix F Performing a Site Survey Uninstalling the Site Survey Utility ...

Page 263: ...of 5 GHz OFDM systems It specifies the implementation of the physical layer for wireless UNII bands see UNII UNII 1 and UNII 2 and provides four channels per 100 MHz of bandwidth 802 11b The IEEE standard that specifies carrier sense media access control and physical layer specifications for 5 5 and 11 Mbps 2 4 GHz wireless LANs 802 11g The IEEE standard that specifies carrier sense media access c...

Page 264: ...ervices WDS and creates a cache of security credentials for CCKM enabled client devices on the subnet The WDS access point s cache of credentials dramatically reduces the time required for reassociation when a CCKM enabled client device roams to a new access point CKIP Cisco Key Integrity Protocol Cisco s WEP key permutation technique based on an early algorithm presented by the IEEE 802 11i secur...

Page 265: ...With EAP FAST a username password and PAC are used by the client adapter to perform mutual authentication with the RADIUS server through an access point Ethernet The most widely used wired local area network Ethernet uses carrier sense multiple access CSMA to enable computers to share a network and operates at 10 100 or 1000 megabits per second Mbps depending on the physical layer used F file serv...

Page 266: ...ess is an 802 1X authentication type With LEAP a username and password are used by the client adapter to perform mutual authentication with the RADIUS server through an access point M MAC address The Media Access Control MAC address is a unique serial number assigned to a networking device by the manufacturer MIC Message integrity check MIC prevents bit flip attacks on encrypted packets During a b...

Page 267: ...n the wireless LAN increases keeping the latency jitter and loss for selected traffic types within an acceptable range QPSK Quadruple phase shift keying A modulation technique used by IEEE 802 11 compliant wireless LANs for transmission at 2 Mbps R radio channel The frequency at which a radio operates range A linear measure of the distance that a transmitter can send a signal receiver sensitivity ...

Page 268: ...lding wireless LAN applications UNII 2 is located at 5 25 to 5 35 GHz and allows for a maximum transmit power of 200 mW or 23 dBm with an antenna up to 6 dBi UNII 2 regulations allow for an auxiliary user installable antenna UNII 3 A UNII band dedicated to wireless LAN applications UNII 3 is located at 5 725 to 5 825 GHz and allows for a maximum transmit power of 1 Watt or 30 dBm with an antenna u...

Page 269: ...s it is transmitted through your wireless network by encrypting it through the use of encryption keys WMM Wi Fi Multimedia WMM is a component of the IEEE 802 11e wireless LAN standard for quality of service QoS It specifically supports priority tagging and queuing workstation A computing device with an installed client adapter WPA Wi Fi Protected Access A standards based security solution from the...

Page 270: ...Glossary GL 8 Cisco Aironet 802 11a b g Wireless LAN Client Adapters CB21AG and PI21AG Installation and Configuration Guide OL 4211 03 ...

Page 271: ...reless infrastructure 1 6 IP address in ADU 7 9 in ASTU 8 11 in site survey utility F 6 MAC address in ADU 7 9 in site survey utility F 6 F 10 F 12 maximum transmit data rate in site survey utility F 10 mismatches 7 14 name in ADU 7 9 in ASTU 8 11 in site survey utility F 6 F 11 F 13 problems associating to 10 10 radio band in site survey utility F 10 F 13 role in wireless network 1 5 security set...

Page 272: ...8 6 overview 8 2 pop up menu 8 5 to 8 11 selecting the active profile 8 8 to 8 9 setting preferences 8 6 to 8 7 specifying pop up menu options 8 7 Tool Tip window 8 3 to 8 5 using 8 1 to 8 11 using to open ADU 8 6 using to open troubleshooting utility 8 6 Aironet System Tray Utility Preferences window 8 6 Allow Association to Mixed Cells parameter setting with EAP FAST 5 37 setting with EAP TLS 5 ...

Page 273: ...rofile from 4 8 restrictions 4 8 status of 8 10 using 8 8 Auto Profile Selection Management window 4 7 Auto Select Profiles parameter 4 9 Available Infrastructure and Ad Hoc Networks window 4 4 B beacon period in site survey utility F 13 beacons received in ADU 7 14 in site survey utility F 7 broadcast key rotation described 5 20 setting on client and access point 5 24 broadcast packets number rec...

Page 274: ... utility F 3 to F 4 client name 9 9 Client Name parameter 5 4 client utilities See Aironet Desktop Utility ADU and Aironet System Tray Utility ASTU Configuration Settings window for PEAP EAP GTC 5 44 for PEAP EAP MSCHAP V2 5 47 configuring client adapter deciding between ADU and Windows XP 3 17 to 3 18 in ADU 5 1 to 5 51 in Windows XP E 5 to E 10 connection status 8 4 8 10 Connection Status window...

Page 275: ...tication described E 4 overview 5 15 to 5 17 6 2 E 3 to E 4 restarting 6 15 using 6 1 to 6 15 EAP Cisco Wireless See LEAP authentication EAP FAST authentication authenticating after a reboot logon with automatically prompted login 6 6 to 6 7 with saved username and password 6 12 with Windows username and password 6 4 authenticating after a reboot logon card insertion with manually prompted login 6...

Page 276: ...option 8 6 encryption errors 7 14 Enter Password window 5 36 Enter Wireless Network Password window 6 6 6 7 6 9 6 10 error messages 10 12 to 10 22 errors CRC 7 14 encryption 7 14 MIC 7 15 Exit menu option in ADU 9 7 in ASTU 8 6 9 7 in site survey utility F 15 Export button 4 11 Export Profile window 4 12 F Fast PSP 5 8 FCC declaration of conformity statement C 2 safety compliance statement 2 2 fra...

Page 277: ...3 infrastructure network selecting in ADU 5 9 wireless LAN configuration 1 6 inserting client adapter 3 2 to 3 8 Install Cisco Aironet Site Survey Utility window Install Wizard 3 13 installing client adapter software 3 9 to 3 20 Install Wizard file described 1 4 installing 3 9 to 3 20 name 3 9 removing 9 6 interference 2 5 3 6 interrupt request IRQ 10 9 introduction to client adapters 1 2 IP addre...

Page 278: ... of 7 11 using 5 9 M MAC address of access point in site survey utility F 6 F 10 F 12 specifying 5 13 viewing 7 9 of client adapter 9 9 machine authentication with machine credentials using EAP TLS 5 41 using PEAP EAP MSCHAP V2 5 49 to 5 50 machine authentication with user credentials using PEAP EAP GTC 5 43 using PEAP EAP MSCHAP V2 5 47 Manual Login ADU menu option 5 29 6 9 ASTU menu option 8 8 M...

Page 279: ...op Utility ASTU menu option 8 6 9 7 open authentication setting 5 12 E 8 status of 7 8 operating systems supported xii 2 4 3 9 Order Profiles button 4 7 organization of document xii to xiii P PAC authority selecting 5 34 5 37 package contents 2 3 packets broadcast 7 13 multicast 7 13 unicast 7 13 PAC provisioning automatic 5 33 to 5 34 manual 5 33 to 5 34 PACs copying from private store to global ...

Page 280: ...work 1 5 5 9 physical specifications A 2 Please Change Password window 6 5 6 8 6 11 6 13 power level current 7 10 power levels available 7 10 power save mode currently being used 7 10 Power Save Mode parameter 5 8 power specifications A 6 Preferences ASTU menu option 8 6 Preferred Access Points window 5 13 Preparing Setup window Install Wizard 3 10 9 3 Pre Shared Key Static WEP option 5 24 Previou...

Page 281: ...eter 7 3 7 12 regulatory domains IEEE 802 11a D 2 IEEE 802 11b g D 3 information C 2 to C 9 specifications A 6 related publications xv Remove button 4 10 removing client adapter 9 2 resource conflicts resolving in Windows 2000 10 9 in Windows XP 10 10 RF obstructions 2 5 3 6 F 2 RM Normal in site survey utility F 11 RM Source in site survey utility F 11 roaming 1 6 roaming parameters setting in th...

Page 282: ...ngth Display Units parameter 7 3 signal to noise ratio SNR as a percentage 7 3 in ADU 4 5 in dB 7 3 in site survey utility F 8 site requirements for client devices 2 5 for infrastructure devices 2 5 site survey environmental considerations F 2 guidelines F 2 performing F 1 to F 15 site survey utility About window F 15 accessing help F 15 AP detailed information parameters F 12 to F 13 AP Detailed ...

Page 283: ... 20 static WEP keys guidelines for entering in ADU 5 25 in Windows XP E 9 overview 5 15 E 2 selecting transmit key 5 25 size of 5 25 statistics method of calculation 7 12 receive 7 13 7 14 to 7 15 transmit 7 13 7 14 viewing 7 12 to 7 15 status of client adapter in ADU Advanced Status window 7 7 to 7 11 in ADU Current Status window 7 4 to 7 6 in ASTU Connection Status window 8 9 to 8 11 in ASTU Too...

Page 284: ...3 uninstalling client adapter software 9 6 unpacking the client adapter 2 3 Unplug or Eject Hardware icon Windows 9 2 upgrading client adapter software 9 3 to 9 5 up time status of 7 10 Use Auto Profile Selection ASTU menu option 8 8 Use Machine Information For Domain Logon parameter for EAP TLS 5 41 for PEAP EAP GTC 5 43 for PEAP EAP MSCHAP V2 5 47 Use Saved User Name and Password option for EAP ...

Page 285: ...son to ADU 3 17 to 3 18 making a configuration decision 3 17 to 3 18 resolving resource conflicts 10 10 security features E 2 to E 4 viewing status of client adapter E 18 Wireless Cisco Connection Properties window 5 52 wireless infrastructure 1 6 wireless mode current 4 5 7 5 Wireless Mode parameter 5 10 Wireless Mode When Starting Ad Hoc Network parameter 5 10 Wireless Network Connection Propert...

Page 286: ... OL 4211 03 enabling 5 26 to 5 27 setting on client and access point 5 21 WPA option in Windows XP E 8 WPA passphrase described 5 18 E 4 disabling 5 51 enabling 5 26 to 5 27 setting on client and access point 5 21 WPA Pre Shared Key See WPA passphrase or WPA2 passphrase WPA PSK described 5 18 E 4 option in Windows XP E 8 ...

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Summary of Contents for AIRONET CB21AG

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Cisco AIRONET CB21AG, Installation And Configuration Manual

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Summary of Contents for AIRONET CB21AG

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