Review Questions

1. Cisco Aironet drivers and utilities are available for all operating systems (True/False)?

2. A solid orange status light indicates that the client card is operating normally (True/False)?

3. The client card can be configured only through Network Properties in the Windows environment (True/False)?

4. What is the Site Survey utility used for?

© 2003, Cisco Systems, Inc. All lights reserved. AWLF v3.1—7-54

Answer these review questions.

AWLF

Aironet Wireless LAN Fundamentals

Volume 2

Version 3.1

Student Guide

Text Part Number: 67-1689-01

Copyright © 2003, Cisco Systems, Inc. All rights reserved.

Cisco Systems has more than 200 offices in the following countries and regions. Addresses, phone numbers, and fax numbers are listed on the Cisco Web site at www.cisco.com/go/offices.

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Copyright © 2003 Cisco Systems, Inc. All rights reserved. CCIP, CCSP, the Cisco Powe/'erf Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, GigaStack, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightStream, MGX, MICA, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, RateMUX, Registrar, ScriptShare, SlideCast, SMARTnet, StrataView Plus, Stratm, SwitchProbe, TeleRouter, The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.

All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0304R)

Table of Contents

Volume 1

Introduction_1-1

Overview 1-1

Agenda 1-2

Cisco Wireless 1-3

Wireless Data Networks 1-4

WLAN Evolution 1-5

Cisco Wireless Advantages 1-8

Radio Frequency Spread Spectrum Technology 2-1

Overview 2-1

Objectives 2-2

ISM Unlicensed Frequencies 2-3

Spread Spectrum RF Technology 2-7

802.11b Modulation 2-13

Direct Sequence 2-14

Example 2-14

Americas 2-15

Europe, Middle East and Asia (EMEA) 2-16

802.11a Modulation 2-20

Orthogonal Frequency Division Multiplexing (OFDM) 2-20

802.11 Authentication 2-26

Association Process 2-26

Multipath 2-28

Summary 2-31

Review Questions 2-32

Wireless LAN Topologies_3-1

Overview 3-1

Objectives 3-2

WLAN Topology 3-3

Enterprise Topologies, Channel Reuse and Multi-Rate Shifting 3-10

Multi-rate Implementation 3-18

Cisco's 2.4 GHz Radios

3-22

Inline Power

3-26

Cisco Aironet Access Point VLAN Feature

3-29

VLAN Feature

3-29

Cisco Aironet Access Point Quality of Service Feature

3-32

QoS Feature

3-32

Cisco Aironet Access Point Proxy Mobile IP

3-37

Proxy Mobile IP

3-37

Cisco Aironet Structured Wireless Aware Network (SWAN)

3-40

Summary

3-44

Review Questions

3-45

Wireless Bridging

4-1

Overview

4-1

Objectives

4-2

Wireless Bridge Alternatives

4-4

Role in Radio Network

4-12

Installation Considerations

4-22

Theory of Operation

4-27

Path Loss Consideration

4-34

Common Questions and Misconceptions

4-55

Summary

4-64

Review Questions

4-65

Cisco Aironet Wireless LAN Products

5-1

Overview

5-1

Objectives

5-2

WLAN Products

5-3

Cisco Aironet WLAN Product Line

5-5

Structured Wireless-Aware Network

5-22

Enterprise-Class WLAN Security

5-30

Summary

5-39

Review Questions

5-40

Antenna Concepts

6-1

Overview

6-1

Objectives

6-2

FCC Standards

6-4

General Antenna Concepts

6-6

iv Aironet Wireless LAN Fundamentals (AWLF) v3.1

Copyright © 2003, Cisco Systems, Inc.

Antenna Gain 6-7

Antenna Design 6-8

§ 15.203 Antenna Requirements 6-12

Cisco Aironet Antennas 6-19 2.4 GHz Antennas 6-19 802.11a Antennas 6-30

Cisco Aironet 1100 Series Access Point 6-34 Antenna and Mounting Considerations 6-34

Summary 6-39

Review Questions 6-40

Aironet Client Utility and Drivers_7-1

Overview 7-1

Objectives 7-2

Supported Operating Systems 7-3

PC Card LEDs 7-8

Aironet Client Utility 7-9

Laboratory Exercise: Client Card Adapter Installation 7-25 Setup 7-25 Scenario 7-25 Task 1: Installing the PCMCIA Adapter Card 7-25 Task 2: Loading Drivers for the PCMCIA adapter 7-26 Windows 95 Version A 7-26 Windows 95 Version B 7-27 Windows 98 7-28 Windows ME 7-29 Windows 2000 7-30 Windows NT 7-31 Windows XP 7-32 PowerBook and PowerMac: Mac OS X and Mac OS 9.x 7-34 PowerBook and PowerMac: Mac OS 9.x 7-36 Setup 7-36 Scenario 7-37 Task 3: Assigning Your IP Address 7-37 Setup 7-39 Scenario 7-39 Task 4: Installing and configuring the ACU. 7-39

Visual Objective 7-39

Visual Objective 7-40

Visual Objective 7-41

Visual Objective 7-42

Visual Objective 7-43

Visual Objective 7-44

Visual Objective 7-45

Visual Objective 7-46

Visual Objective 7-47

Visual Objective 7-48

Summary 7-49

Review Questions 7-50 Volume 2

Access Point and Bridge Basic Configuration_8-1

Overview 8-1

Objectives 8-2

Access Point LEDs 8-5

Connecting to the Access Point 8-7

Setup of Network Ports 8-14

Statistics 8-56

Setup of Association Parameters and Features 8-64

Display Filter Options 8-64

Cisco Service 8-72

Firmware Upgrade and Distribution 8-74

System Management 8-83

SNMP Setup 8-85

Filtering 8-88

Entering a new MAC address filter 8-94

Entering a new MAC address filter 8-96

VLAN Configuration 8-116

VLAN Summary Status 8-116

QoS Configuration 8-134

Cisco Aironet Local Radius Authentication 8-141

Cisco Aironet Proxy Mobile IP 8-147

Services: Proxy Mobile IP—General Setup 8-148

Authoritative Access Points (host name or IP Address) 8-149

Services: Proxy Mobile IP—Security Association (SA) Bindings 8-150

Services: Proxy Mobile IP—Subnet Table 8-152

Services: Proxy Mobile IP—Statistics 8-153

Cisco Aironet Access Point IOS CLI Interface 8-156

ISO Overview 8-156

Summary 8-166

Review Questions 8-167

Security_9-1

Overview 9-1

Objectives 9-2

Basic Security Features 9-3

802.11 Security 9-12 Open Authentication 9-15 Shared Key Authentication 9-16

Configuring the Access Point for WEP 9-17

Configuring the Client for WEP 9-25

Problems with 802.11 WEP Security 9-29

Security Suite 9-34

WLAN Attacks 9-50

Configuring the Access Point for Authentication 9-56

Configuring the Client for Authentication 9-68

Configuring Non-Root Devices for Authentication 9-70

Configuring Cisco ACS 9-73

User Setup 9-85

Summary 9-99

Review Questions 9-100

WLAN Management Solutions_10-1

Overview 10-1

Objectives 10-2

Wireless LAN Challenges 10-3

CiscoWorks WLSE 10-4

Wavelink Mobile Manager 10-15

Summary 10-19

Review Questions 10-20

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