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Troubleshooting with Cisco Aironet Client Diagnostics

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Troubleshooting with Cisco Aironet Client Diagnostics Chapter 6 Troubleshooting and Diagnostics Troubleshooting with Cisco Aironet Client Diagnostics Cisco Aironet Client Diagnostics is a mode that identifies communication problems between the client adapter and a wireless LAN infrastructure device. When in this mode, the client adapter and the infrastructure device proceed through a defined set of tests. The results of these tests can assist in isolating conditions that require troubleshooting. Cisco Aironet Client Diagnostics can only be started manually. To start this mode, follow these steps: Step 1 Step 2 Verify that the client adapter radio is enabled. If the radio is not enabled, enable it. Choose Start > Control Panel > Network and Sharing Center. The Network and Sharing Center window opens (see Figure 6-1). Figure 6-1 Network and Sharing Center Window Step 3 Click Cisco Aironet Client Diagnostics. The Cisco Aironet Client Diagnostics dialog box appears (see Figure 6-2). Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide for Windows Vista 6-2 OL-16534-01

Section	Page
Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide for Windows Vista	1
Contents	3
Preface	9
Product Overview and Installation	13
Introduction to the Client Adapters	14
Terminology	14
Hardware Components	15
Radio	15
Radio Antenna	15
LEDs	15
Software Components	16
Network Configurations Using Client Adapters	16
Ad Hoc Wireless LAN	16
Wireless Infrastructure with Workstations Accessing a Wired LAN	17
Safety information	18
FCC Safety Compliance Statement	18
Safety Guidelines	18
Warnings	19
Unpacking the Client Adapter	19
Package Contents	20
System Requirements	20
Site Requirements	21
For Infrastructure Devices	21
For Client Devices	21
Inserting the Client Adapter	22
Inserting a PC-Cardbus Card	22
Inserting a PCI Card	23
Changing the Bracket	23
Inserting the Card	24
Assembling the Antenna	25
Mounting the Antenna	26
Obtaining Client Adapter Software	29
Installing the Client Adapter Driver and Software	30
Configuring Wireless Profiles	35
Overview of Wireless Profiles	36
Accessing Microsoft Vista Network and Sharing Center	36
Creating a New Profile and Configuring Basic Settings	37
Security and Encryption Types	44
WEP (Shared) Security with Static WEP Keys	44
WPA and WPA2	44
802.1X with Dynamic WEP Keys	45
CCKM Fast Secure Roaming	46
Accessing a Profile That Was Created Previously	46
Viewing and Changing the Settings of a Profile	47
Radio Measurement	52
Advanced Roaming Setting	53
Configuring EAP Types	55
Overview of EAP-FAST	55
How EAP-FAST Works	56
Two-Phase Tunneled Authentication	56
Protected Access Credentials	57
Server Certificate Validation	57
Configuring EAP-FAST	58
Accessing EAP-FAST Properties for Configuration	58
Configuring EAP-FAST Settings in the Connection Tab	59
Overview of the User Credentials Tab	63
Client Certificates	63
Usernames and Passwords	63
Configuring EAP-FAST Settings in the User Credentials Tab	64
Understanding PIN Mode and Token Mode with OTP	66
Configuring EAP-FAST Settings in the Authentication Tab	67
Finding the Version of the EAP-FAST Module	70
Overview of LEAP	71
How LEAP Works	71
Configuring LEAP	72
Accessing LEAP Properties for Configuration	72
Configuring LEAP Settings in the Network Credentials Tab	73
Finding the Version of the LEAP Module	75
Overview of PEAP-GTC	75
How PEAP-GTC Works	76
Configuring PEAP-GTC	77
Accessing PEAP-GTC Properties for Configuration	77
Configuring PEAP-GTC Settings in the Connection Tab	79
Configuring PEAP-GTC Settings in the User Credentials Tab	81
Understanding PIN Mode and Token Mode with OTP	83
Understanding PEAP-GTC Authentication	84
Finding the Version of the PEAP-GTC Module	84
Performing Administrative Tasks	85
Using Microsoft Tools to Perform Administrative Tasks	86
Overview of Group Policy Objects	86
Adding a Group Policy Object Editor	86
Creating a EAP Group Policy Object in Windows Vista	87
Configuring Machine Authentication for EAP-FAST	88
Configuring Single Sign-On for EAP-FAST	89
Configuring Machine Authentication for PEAP-GTC	89
Configuring Single Sign-On for PEAP-GTC and LEAP	89
The EAP-FAST XML Schema	90
The PEAP-GTC XML Schema	101
The LEAP XML Schema	107
Logging for EAP Modules	110
Configuring and Starting Logging	110
Disabling Logging and Flushing Internal Buffers	111
Locating Log Files	112
Routine Procedures	113
Removing a Client Adapter	114
Removing a PC-Cardbus Card	114
Removing a PCI Card	114
Upgrading the Client Adapter Software	115
Troubleshooting and Diagnostics	119
Troubleshooting with Cisco Aironet Client Diagnostics	120
Enabling Client Reporting	124
EAP Messages	125
EAP-FAST Error Messages and Prompts	125
PEAP-GTC and LEAP Error Messages and Prompts	130
Creating Strong Passwords	133
Characteristics of Strong Passwords	133
Characteristics of Weak Passwords	133
Password Security Basics	134
Technical Specifications	135
Translated Safety Warnings	141
Explosive Device Proximity Warning	142
Antenna Installation Warning	143
Warning for Laptop Users	144
Declarations of Conformity and Regulatory Information	147
Manufacturer’s Federal Communication Commission Declaration of Conformity Statement	148
Models: AIR-CB21AG-A-K9, AIR-PI21AG-A-K9	148
FCC Certification Number: LDK102050 (CB21AG) LDK102051 (PI21AG)	148
Manufacturer: Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA	148
Department of Communications - Canada	149
Canadian Compliance Statement	149
European Community, Switzerland, Norway, Iceland, and Liechtenstein	149
Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC	149
Declaration of Conformity Statement	151
Cisco Aironet CB21AG Wireless LAN Client Adapter	151
Cisco Aironet PI21AG Wireless LAN Client Adapter	152
Declaration of Conformity for RF Exposure	153
Guidelines for Operating Cisco Aironet CB21AG and PI21AG Wireless LAN Client Adapters in Japan	153
Japanese Translation	153
English Translation	153
Administrative Rules for Cisco Aironet CB21AG and PI21AG Wireless LAN Client Adapters in Taiwan	154
2.4- and 5-GHz Client Adapters	154
Chinese Translation	154
English Translation	154
5-GHz Client Adapters	155
Chinese Translation	155
English Translation	155
Brazil/Anatel Approval	155
AIR-CB21AG-W-K9	156
AIR-PI21AG-W-K9	157
Channels, Power Levels, and Antenna Gains	159
Channels	160
IEEE 802.11a	160
IEEE 802.11b/g	161
Maximum Power Levels and Antenna Gains	162
IEEE 802.11a	162
IEEE 802.11b	162
IEEE 802.11g	163
Acknowledgments and Licensing	165