Cisco 802. 11 Wireless Networking Quick Reference

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Overview

Your quick-and-easy reference to 802.11 WLAN components and protocols

  • Access wireless Cisco product information, including coverage on wireless client adapters and IP phones
  • Learn the ideal configuration of access points, bridges, antennas, and routers for your specific situation
  • Integrate a Cisco solution with various wireless networking gear
  • Configure and troubleshoot access points and client devices promptly
  • Optimize, secure, and tune your WLAN by following helpful tips and hints
  • Refer to charts and tables that both network beginners and professionals can easily scan
  • Make the right decision about your organization’s wireless network with quick leverage

Whether you are a network engineer, network administrator, business decision maker, or student, you know that wireless networking capabilities are an increasingly essential part of your purchasing and implementing decisions. You want the most out of your wireless gear, but memorizing every product and protocol is daunting when faced with a myriad of solutions and options. Now, you can turn to Cisco 802.11 Wireless Networking Quick Reference, a time-saving tool for the office, field, or classroom lab, when you need a memory-refresher or a quick-tip guide on maximizing your wireless network.

If you work on a wireless network using Cisco® technologies, keep this book within reach. Compact and convenient, this concise reference can be browsed occasionally or consulted regularly for a glance at a technical specification or that elusive command argument. Divided into three easy-to-follow sections, Part I describes and provides ways for Cisco wireless LAN (WLAN) equipment offerings to be integrated into an existing network. Part II covers how to configure access points and clients and how to set up and manage a secure wireless network. Lastly, Part III shows you how to maintain a wireless network and troubleshoot common wireless issues. Meant to be used in a hands-on capacity, this transportable guide is a practical tool when performing a variety of tasks on your wireless network.

This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

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Product Details

  • ISBN-13: 9781587052279
  • Publisher: Cisco Press
  • Publication date: 10/13/2005
  • Series: Networking Technology Series
  • Edition description: New Edition
  • Pages: 288
  • Sales rank: 814,867
  • Product dimensions: 5.98 (w) x 9.14 (h) x 0.58 (d)

Meet the Author

Toby J. Velte, Ph.D., MCSE+I, CCNA®, CCDA®, is cofounder of Velte Publishing, Inc. Dr. Velte is an international, best-selling author of business technology articles and books. He is coauthor of Cisco: A Beginner’s Guide and Cisco Internetworking with Windows NT/2000. He is currently part of Accenture’s North American Consumer and Industrial practice.

Anthony T. Velte, CISSP, is cofounder of Velte Publishing, Inc. Mr. Velte is an information systems security expert and has led a multitude of network, security, and disaster-recovery initiatives for large banking and healthcare institutions. In addition to writing and publishing a variety of technology books and papers, he dabbles in marketing and Internet e-commerce strategies.

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Table of Contents

Preface

Introduction

Chapter 1 Cisco Wireless Equipment

Cisco Aironet APs

Cisco Aironet 1100 Series

Aironet 1130AG Series AP

Cisco Aironet 1200 Series

Aironet 1230AG Series AP

Cisco Aironet 1300 Series

AP Quick Comparison

Airespace

Cisco 1000 Series Lightweight AP

Cisco WLAN Controllers

Cisco Wireless Bridges

Cisco Aironet 1300 Series as a Bridge

Cisco Aironet 1400 Series

Wireless Bridge Quick Comparison

Cisco Client Adapters

Cisco Aironet 350

Cisco Aironet 802.11a, 802.11b, and 802.11g CardBus and PCI Wireless Client LAN Adapters

Cisco Aironet 5 GHz 802.11a Adapter

Client Adapter Quick Comparison

Cisco Wireless Router and Switch Services

Cisco 3200 Series Wireless and Mobile Routers

Cisco Catalyst 6500 Series Switches

Cisco Wireless 7920 IP Phone

Cisco Compatible Extensions (CCX)

Other Resources

Chapter 2 Cisco Antennas

Models

Antenna Tech Primer

Beam Width

Gain

Cisco 2.4-GHz Antennas

Cisco 5-GHz Bridge Antennas

Cisco 2.4-GHz Bridge Antennas

Diversity

Configuring Multiple Antennas for Diversity

Optimal Antenna Placement for Diversity

Upgrading Antennas

Adding a New Antenna

Placement Considerations with a New Type of Antenna

Range

Interference

Alignment

The Best Antenna for the Best Scenario

Warehouses

Offices

Bridging

Rules, Regulations, and Legalities of Antenna Usage and Placement

The Right Antenna for the Right Device

Power Regulation

Amplification

Other Resources

Chapter 3 Cisco Wireless Technologies

Cisco SWAN

SWAN Highlights

Roaming

RF Management

Cisco Mobile Wireless Center

Provisioning Manager

Fault Mediator

Performance Mediator

Cisco Wireless Certifications

WLAN Design Specialist

WLAN Sales Specialist

WLAN Support Specialist

Other Resources

Chapter 4 Wireless Security

Security Overview

WEP Overview

WEP Weaknesses

IEEE 802.1X Authentication

Manage Port Access

Attacking with MAC

802.1X Protocols

Extensible Authentication Protocol

EAP-TLS

Cisco Wireless EAP

PEAP

PEAP Overview

PEAP Version 0 and Version 1

EAP-FAST

Comparison of 802.1X Authentication Methods

Wi-Fi Protected Access (WPA)

WPA

WPA2

Encryption

Data Encryption Standard (DES)

Advanced Encryption Standard (AES)

Other Resources

Chapter 5 Installing and Configuring Access Points

Site Survey

AP Location for Site Survey

Performing the Survey

Manual Site Survey

Assisted Site Survey

Analyzing Your Site

Cabling

Encryption and Authentication

40/64-Bit Versus 104/128-Bit Encryption

Setting WEP Keys Using the CLI

802.1X Configuration

802.1X CLI Configuration

Antenna Placement

Initial Settings

Express Set-Up

Express Security Set-Up

APs as Repeaters

Repeater Overview

Configuring Repeater APs

Configuring a Repeater Using the CLI

Other Resources

Chapter 6 Configuring Clients

Client Utilities

ACU and Aironet Desktop Utility (ADU)

ACM

CEM

LSM

Network Discovery

Client Configuration

Profiles

Creating a Profile

Selecting an Active Profile

Setting System Parameters

Choosing Between Infrastructure and Ad Hoc

Advanced Infrastructure Parameters

Advanced Ad Hoc Parameters

Configuring Security

Configuring WEP Keys

Configuring 802.1X Authentication

LEAP

Host-based EAP

Configuring EAP in Windows

EAP-TLS

PEAP

EAP-SIM

Chapter 7 Wireless and Wired LAN Integration Overview

Wireless Network Design Considerations

Establish Your Network’s Size

Determining Bandwidth

Designing for Special Needs

Organizational Needs

Physical Constraints

Antennas

Design Checklist

Topologies

WLAN Topologies

Ad Hoc

Infrastructure

Bridge Topologies

Channel Setup

Integration Issues

Security Planning

Virtual LANs

Using Cisco Equipment with Third-Party Vendors

Integration Checklist

Connecting Your Network

Address Management

Access Control

Roaming

Fast, Secure Roaming

Configuring WDS

Step 1: Configure Your APs or Switches as WDS Devices

Step 2: Configure Your APs to Use the WDS Device

Step 3: Enable Layer 3 Mobility to an SSID

Step 4: Configure the Authentication Server to Support Fast, Secure Roaming

Other Resources

Chapter 8 Wireless Security: Next Steps

Filtering

MAC Filtering

Setting MAC Filters

IP Filtering

Setting IP Filters

WPA

Connecting to a RADIUS Server

Configuring the AP for RADIUS Connection

Configuring the RADIUS Server

Defining Authentication

Building a Honeypot

Chapter 9 CiscoWorks LAN Management Solution

CiscoWorks LMS Overview

Campus Manager

Device Fault Manager

Resource Manager Essentials

CiscoView

CiscoWorks Management Server

Common Services

Configuring CiscoWorks LMS

LMS Homepage

Initial Tasks

Automatic Device Discovery

Adding Devices Using DCA

Bulk Import

Collecting Data

Performing Application Tasks

Campus Manager

RME

DFM

Internetwork Performance Monitor

Other Resources

Chapter 10 CiscoWorks Wireless LAN Solution Engine (WLSE)

Dashboard

Managing WLANs

Configuring Devices

Radio Management

Configuring the Network for Radio Manager

Collecting Radio Location Data

Generating Radio Parameters

Radio Manager Features

Auto Re-Site Survey

Self Healing

Detecting Interference

Security

Managing Security

Rogue AP Detection and Mitigation

Chapter 12 Tuning AP Radio Parameters

Power Tuning

Managing Power Settings on the AP

Managing Power Settings on the Client

Radio Tuning

Determining Optimal Channel and Frequency

Tuning to the Optimal Channel and Frequency

Data Configuration

Data Rates

Configuring Antenna Usage

Configuring the Beacon Period and DTIM

Configuring the RTS Threshold

Configuring Data Retries

Configuring the Fragmentation Threshold

Chapter 13 Network Tuning Tools and Resources

Signal Strength

Using Perfmon

Views

Chart View

Alert View

Log View

Report View

QoS

QoS Overview

Configuring QoS

Using Third-Party Tools

NetStumbler

AirMagnet

Sniffer Wireless

Other Resources

Chapter 14 Diagnosing Client Connection Problems

Troubleshooting Access Points (AP)

AP Problems

Check the AP

Faulty APs


Configuration Issues

Signal Strength

Change Channels

Check the SSID

WEP Keys

Wi-Fi Protected Access (WPA)

IP Address Duplication

DHCP Misconfiguration

MAC Filtering

Troubleshooting and Conflict Resolution Tools

Client Troubleshooting Utility

Prioritizing Connections

Windows Resource Conflicts

Troubleshooting Checklist

Other Resources

Chapter 15 Diagnosing Performance Problems

Connection Problems

Authentication and Re-Authentication Problems

Hardware Issues

Firmware

Configuration

Signal Problems

Cable Type

Installation Issues

Slow WLAN Network Throughput

Bridged Networks

Line-of-Sight Networks

Fresnel Zone

Other Resources

Appendix A 802.11 Protocols

Bands and Channels

Throughput

Network Capacity

Range

802.11b and 802.11g

802.11b

802.11g

802.11a

Multiband Solutions

Index


1-58705-227-x TOC September 28, 2005

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