Cisco Cisco Aironet Wireless LAN Client Specifikace Strana 20
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Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Linux
OL-1376-02
Chapter 1 Overview
Introduction to the Software Components
LEDs
The client adapter has two LEDs that glow or blink to indicate the status of the adapter or to convey error
messages. See Chapter 8 for an interpretation of the LED codes.
Introduction to the Software Components
The client adapter’s software components consist of the following:
• Firmware
• Driver
• Client utilities
The installation program installs the client utilities and driver. Firmware is installed on the client adapter
at the factory. You can update all the software components. Procedures for updating the firmware,
drivers, and client utilities can be found in Chapter 7, “Routine Procedures.”
Cisco’s Linux driver and client utilities support version 2.2.xx or 2.4.xx of the Linux kernel.
The following client utilities are available:
• The Aironet Client Utility loads new firmware, configures the client adapter, enables security
features, configures a WEP key, and performs user-level diagnostics.
• Three LEAP Credential Utilities provide a different interface for entering LEAP credentials:
–
Leaplogin: An X window application for configuring LEAP credentials. A graphical dialogue
box prompts you for your LEAP username and password.
–
Leapset: An interactive command line utility for configuring LEAP credentials. This utility
prompts you for your LEAP username and password.
–
Leapscript: A non-interactive utility for configuring LEAP credentials designed for inclusion
in shell scripts. (In the shell script, the LEAP password will be in clear text, so ensure that the
permissions on the script are appropriate.)
Note The LEAP username and password do not need to be the same as those for your Linux user
account.
• The Bcard Utility is an optional Linux-specific utility that reads a previously saved client adapter
configuration, which was set in the Aironet Client Utilities (ACU). For a detailed description of
Bcard, see “Using the Bcard Utility” section on page 3-25.
Network Configurations Using the Client Adapter
The client adapter can be used in a variety of network configurations. In some configurations, access
points provide connections to your network or act as repeaters to increase wireless communication
range. The maximum communication range is based on how you configure your wireless network.
This section describes and illustrates the following common network configurations:
• Ad hoc wireless LAN
• Wireless infrastructure with workstations accessing a wired LAN
- Guide for Linux 1
- CONTENTS 3
- Contents 4
- 5 Advanced Configuration 5-1 5
- 6 Diagnostics 6-1 5
- 7 Routine Procedures 7-1 5
- 8 Troubleshooting 8-1 6
- Japanese Translation D-7 7
- English Translation D-7 7
- Audience 10
- Organization 10
- Conventions 11
- Attention 12
- Avvertenza 12
- Advarsel 12
- Related Publications 13
- Obtaining Documentation 13
- Ordering Documentation 14
- Documentation Feedback 14
- Cisco.com 14
- Technical Assistance Center 15
- Cisco TAC Escalation Center 16
- Overview 17
- Terminology 18
- Parts of the Client Adapter 19
- Chapter 1 Overview 20
- Ad Hoc Wireless LAN 21
- Site Survey 22
- Preparing for Installation 25
- Safety Information 26
- Unpacking the Client Adapter 27
- System Requirements 27
- Site Requirements 28
- PCMCIA Installation 32
- Enter (Figure 3-3) 33
- Figure 3-7 Make All Screen 37
- Option 1 for Red Hat Systems 38
- Option 2 for Red Hat Systems 39
- Verifying Installation 41
- Inserting a PC Card 42
- Additional Procedures 44
- Opening the Client Utilities 46
- Selecting the Radio 47
- Enabling LEAP 52
- Using the Bcard Utility 53
- Finishing the Installation 54
- Enabling Security Features 55
- Server-Based Authentication 56
- Getting Started 56
- Changing the Password 56
- Entering a New WEP Key 57
- Selecting an Existing WEP Key 59
- Enabling WEP 59
- Message Integrity Check (MIC) 60
- Advanced Configuration 63
- Setting Enterprise Parameters 65
- Table 5-2 System Parameters 66
- Network Type Description 67
- Authentication Description 69
- Setting RF Network Parameters 71
- Data Rate Description 72
- Diagnostics 83
- Chapter 6 Diagnostics 85
- Receive Statistics 90
- Transmit Statistics 91
- Routine Procedures 93
- Ascertaining the ACU Version 94
- Selecting a Help Browser 95
- Loading New Firmware 95
- Uninstalling Manually 97
- Removing a PC Card 99
- Removing a PCI Client Adapter 99
- OL-1376-02 100
- Removing the Client Adapter 100
- Troubleshooting 101
- Using the Indicator LEDs 102
- Getting Help 104
- (Figure 8-3) 105
- Technical Specifications 107
- Power output 109
- Receiver sensitivity 109
- APPENDIX 113
- Channel Sets 114
- Translated Safety Warnings 117
- Warning for Laptop Users 119
- ¡Advertencia! 120
- Varning! 120
- Information 121
- Tested To Comply 122
- With FCC Standards 122
- FOR HOME OR OFFICE USE 122
- Canadian Compliance Statement 123
- Liechtenstein 124
- Japanese Translation 127
- English Translation 127
- GLOSSARY 129
- Glossary 130
- OL-1367-02 130
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