Wireless Networks first-step By Jim Geier Publisher : Cisco Press Pub Date : August 03, 2004 ISBN : 1-58720-111-9 Pages : 264 Your First-Step into the World of Wireless Networks No experience required! Gain an understanding of wireless networking basics with this reader friendly guide Table of • Contents • Index The first book anyone should read about wireless networks with step-by-step instruction Learn from an author experienced in and known for writing to a generalist wireless audience with a clear, simple-tounderstand style As a basic introduction to wireless networking, >Wireless Networks First-Step> assumes that readers have no previous wireless experience The book provides an overview of wireless networking, along with details of applicable standards and technologies Newcomers to wireless technologies will find practical information along with an abundance of examples Case studies throughout the chapters provide real-world implementation examples, presented in a non-technical fashion Implementation details are discussed only to the extent that readers can identify what type of wireless network may be appropriate for their needs >Wireless Networks First-Step>, written by Jim Geier, begins with a basic introduction to wireless networks and an explanation of radio wave communications It then reviews different types of wireless networks including WPANs (wireless personal area networks), WLANs (wireless local area networks), wireless MANs (metropolitan area networks), and WWANs (wireless wide area networks) The final section covers security threats to wireless networks, and solutions to combat these threats Wireless Networks first-step By Jim Geier Publisher : Cisco Press Pub Date : August 03, 2004 Table of ISBN : 1-58720-111-9 • Contents Pages : 264 • Index Copyright About the Author About the Technical Reviewers Acknowledgments Introduction Goals of This Book How This Book Is Organized Who Ought to Read This Book Stuff You'll Find in This Book Chapter 1 The Wireless World: An Introduction to Concepts Wireless Networks Defined Wireless Network Applications Wireless Network Benefits Chapter Summary Chapter Review Questions Chapter 2 Wireless System Architecture: How Wireless Works Wireless Network System Components Network Architecture Information Signals Chapter Summary Flow of Information Through a Wireless Network Chapter Review Questions Chapter 3 Radio Frequency and Light Signal Fundamentals: The Invisible Medium Wireless Transceivers Understanding RF Signals Understanding Light Signals Modulation: Preparing Signals for Propagation Chapter Summary Chapter Review Questions Chapter 4 Wireless PANs: Networks for Small Places Wireless PAN Components Wireless PAN Systems Chapter Summary Wireless PAN Technologies Chapter Review Questions Chapter 5 Wireless LANs: Networks for Buildings and Campuses Wireless LAN Components Wireless LAN Systems Wireless LAN Technologies Chapter Summary Chapter Review Questions Chapter 6 Wireless MANs: Networks for Connecting Buildings and Remote Areas Wireless MAN Components Wireless MAN Systems Chapter Summary Wireless MAN Technologies Chapter Review Questions Chapter 7 Wireless WANs: Networks for Worldwide Connections Wireless WAN Components Wireless WAN Systems Wireless WAN Technologies Chapter Summary Chapter Review Questions Chapter 8 Wireless Network Security: Protecting Information Resources Security Threats Encryption Security Policies Authentication Chapter Summary Chapter Review Questions Appendix A Answers to Chapter Review Questions Chapter 1 Chapter 2 Chapter 4 Chapter 3 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Glossary Index Copyright Copyright© 2005 Cisco Systems, Inc Cisco Press logo is a trademark of Cisco Systems, Inc Published by: Cisco Press 800 East 96th Street Indianapolis, IN 46240 USA All rights reserved No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission from the publisher, except for the inclusion of brief quotations in a review Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 First Printing August 2004 Library of Congress Cataloging-in-Publication Number: 2003111981 Warning and Disclaimer This book is designed to provide information about the basics of wireless networking Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied The information is provided on an "as is" basis The authors, Cisco Press, and Cisco Systems, Inc shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it The opinions expressed in this book belong to the author and are not necessarily those of Cisco Systems, Inc Credits Publisher John Wait Editor-in-Chief John Kane Cisco Representative Anthony Wolfenden Cisco Press Program Manager Nannette M Noble Executive Editor Brett Bartow Acquisitions Editor Michelle Grandin Production Manager Patrick Kanouse Development Editor Andrew Cupp Senior Project Editor San Dee Phillips Copy Editor Laura Williams Technical Editors Joel Barrett D Ed Lamprecht Joseph Roth Editorial Assistant Tammi Barnett Book and Cover Designer Louisa Adair Compositor Mark Shirar Indexer Brad Herriman Proofreader Tonya Cupp Feedback Information At Cisco Press, our goal is to create in-depth technical books of the highest quality and value Each book is crafted with care and precision, undergoing rigorous development that involves the unique expertise of members from the professional technical community Readers' feedback is a natural continuation of this process If you have any comments regarding how we could improve the quality of this book, or otherwise alter it to better suit your needs, you can contact us through email at feedback@ciscopress.com Please make sure to include the book title and ISBN in your message We greatly appreciate your assistance Trademark Acknowledgments All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized Cisco Press or Cisco Systems, Inc cannot attest to the accuracy of this information Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark Corporate and Government Sales Cisco Press offers excellent discounts on this book when ordered in quantity for bulk purchases or special sales For more information please contact: U.S Corporate and Government Sales 1-800-382-3419 corpsales@pearsontechgroup.com For sales outside the U.S please contact: International Sales international@pearsoned.com Corporate Headquarters Cisco Systems, Inc 170 West Tasman Drive San Jose, CA 95134-1706 USA www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 European Headquarters Cisco Systems International BV Haarlerbergpark Haarlerbergweg 13-19 1101 CH Amsterdam The Netherlands www-europe.cisco.com Tel: 31 0 20 357 1000 Fax: 31 0 20 357 1100 Americas Headquarters Cisco Systems, Inc 170 West Tasman Drive San Jose, CA 95134-1706 USA www.cisco.com Tel: 408 526-7660 Fax: 408 527-0883 Asia Pacific Headquarters Cisco Systems, Inc Capital Tower 168 Robinson Road #22-01 to #29-01 Singapore 068912 www.cisco.com Tel: +65 6317 7777 Fax: +65 6317 7799 Cisco Systems has more than 200 offices in the following countries and regions Addresses, phone numbers, and fax numbers are listed on the Cisco.com Web site at www.cisco.com/go/offices Argentina • Australia • Austria • Belgium • Brazil • Bulgaria • Canada • Chile • China PRC • Colombia • Costa Rica • Croatia • Czech Republic Denmark ã Dubai, UAE ã Finland ã France ã Germany ã Greece ã Hong Kong SAR ã Hungary ã India ã Indonesia ã Ireland ã Israel ã Italy Japan ã Korea ã Luxembourg ã Malaysia ã Mexico ã The Netherlands ã New Zealand ã Norway ã Peru ã Philippines ã Poland ã Portugal Puerto Rico ã Romania ã Russia ã Saudi Arabia ã Scotland ã Singapore ã Slovakia ã Slovenia ã South Africa ã Spain ã Sweden Switzerland ã Taiwan ã Thailand ã Turkey ã Ukraine ã United Kingdom ã United States ã Venezuela ã Vietnam ã Zimbabwe Copyright â 2003 Cisco Systems, Inc All rights reserved CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing, FormShare, iQ Net Readiness Scorecard, Networking Academy, and ScriptShare are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, The Fastest Way to Increase Your Internet Quotient, 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 wireless DMZs (demilitarized zones) subnet roaming access controllers threats 2nd DoS (Denial of Service) 2nd 3rd 4th 5th 6th hackers man-in-the-middle attacks 2nd 3rd 4th 5th passive monitoring snoopers traffic monitoring unauthorized access 2nd 3rd 4th 5th 6th semidirectional antennas wireless MANs service set identifier (SSID) access points Session layer (Layer 5), OSI Reference Model short message service (SMS) signals air medium air mediums 2nd carrier signals information signals analog signals 2nd 3rd digital signals 2nd 3rd 4th 5th 6th light 2nd 3rd attenuation attributes 2nd 3rd benefits 2nd detriments 2nd impairments interference modulation 2nd 3rd 4th 5th 6th 7th FSK (frequency shift-keying) 2nd OFDM (Orthogonal Frequency Division Multiplexing) 2nd 3rd PSK (phase shift-keying) 2nd QAM (quadrature amplitude modulation) 2nd spread spectrum process 2nd 3rd 4th UWB (ultrawideband) 2nd propagation preparing for 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th RF (radio frequency) attributes 2nd 3rd 4th 5th benefits 2nd detriments 2nd frequencies interference 2nd 3rd multipath propagation 2nd 3rd 4th 5th transferring simplex links small office systems wireless PANs control Internet connections printing 2nd streaming multimedia 2nd 3rd 4th synchronization 2nd small office wireless LANs 2nd 3rd 4th SMS (short message service) snoopers space-based wireless WANs meteor burst communications 2nd 3rd satellites 2nd 3rd 4th 5th spatial division multiple access (SDMA) [See SDMA (spatial division multiple access)] spread spectrum process modulation 2nd 3rd 4th SSID (service set identifier) access points SSIDs broadcasting turning off storing information streaming multimedia wireless PANs home and small office systems 2nd 3rd 4th subnet roaming access controllers symmetric encryption synchronization wireless PANs home and small office systems 2nd [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] TCP (Transmission Control Protocol) TDMA (time division multiple access) wireless WANs TDMA (time-division multiple access) technologies wireless WANs user devices telephone systems 2nd Temporal Key Integrity Protocol (TKIP) [See TKIP (Temporal Key Integrity Protocol)] terminal emulation third generation celular (3G cellular) wireless WANs 2nd 3rd 4th threats 2nd DoS (Denial of Service) 2nd 3rd 4th 5th 6th hackers man-in-the-middle attacks 2nd 3rd 4th 5th passive monitoring snoopers traffic monitoring unauthorized access 2nd 3rd 4th 5th 6th throughput digital signals time division multiple access (TDMA) [See TDMA (time division multiple access)] time-division multiple access (TDMA) TKIP (Temporal Key Integrity Protocol) 2nd 3rd 4th traffic monitoring threats tranceivers antennas transmitters transcceivers (wireless) 2nd transceivers amplification antennas wireless PANs transferring signals Transmission Control Protocol (TCP) transmissions air medium transmitters wireless transceivers Transport layer (Layer 4), OSI Reference Model [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] UMTSs (Universal Mobile Telecommunications Systems) unauthorized access threats 2nd 3rd 4th 5th 6th Universal Mobile Telecommunications System (UMTS) universities wireless LANs application of USB adapters wireless PANs 2nd 3rd user devices wireless LANs wireless PANs 2nd wireless WANs 2nd 3rd antennas 2nd 3rd base stations 2nd 3rd 4th multiple technology support radio NICs 2nd 3rd 4th 5th users interviewing wireless networks 2nd utility companies wireless WANs application of [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] vending companies wireless WANs application of voice over wireless 2nd VPNs (virtual private networks) [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] WEP (Wired Equivalent Privacy) 2nd 3rd 4th 5th 6th 7th 8th TKIP (Temporal Key Integrity Protocol) 2nd 3rd 4th wireless LANs Wi-Fi wireless LANs 2nd 3rd Wi-Fi (Wireless Fidelity) wireless LANs Wi-Fi Alliance Wi-Fi MANs Wi-Fi Protected Access (WPA) Wide-Area Networks (WANs) [See wireless WANs (Wide-Area Networks)] Wired Equivalent Privacy (WEP) [See WEP (Wired Equivalent Privacy)] wireless devices configurations verifying 2nd wireless DMZs (demilitarized zones) Wireless Fidelity (Wi-Fi) [See Wi-Fi (Wireless Fidelity)] wireless LANs 2nd 3rd (Local-Area Networks) access points 2nd 3rd 4th 5th ad hoc wireless LANs 2nd 3rd antennas applications 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th educational institutions health care industry inventory control benefits of 2nd 3rd 4th 5th Bluetooth enterprise LANs 2nd 3rd 4th 5th 6th Ethernet LANs compared frequency bands choosing HiperLAN/2 (High Perfromance Radio LAN) 2nd 3rd 4th home and small office LANs 2nd 3rd 4th hospitals hotels IEEE 802.11 standard 2nd 3rd 4th 5th 6th association authentication 2nd fragmentation MAC Layer 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th Physical Layers 2nd 3rd 4th 5th 6th 7th 8th 9th 10th power save mode RTS/CTS scanning WEP public wireless LANs 2nd 3rd 4th 5th 6th radio NICs 2nd repeaters 2nd 3rd routers 2nd 3rd user devices Wi-Fi 2nd 3rd Wi-Fi (Wireless Fidelity) wireless network types compared 2nd wireless MANs 2nd 3rd 4th (Metropolitan-Area Networks) applications 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th benefits of 2nd 3rd 4th 5th 6th bridges 2nd 3rd 4th 5th access points Ethernet-to-wireless bridges workgroup bridges directional antennas 2nd 3rd 4th 5th 6th 7th IEEE 802.11 standard IEEE 802.16 standard 2nd packet radio systems 2nd 3rd point-to-multipoint systems 2nd 3rd point-to-point systems 2nd 3rd technologies Wi-Fi wireless network types compared 2nd WISPs (Wireless Internet Service Providers) wireless middleware 2nd 3rd 4th wireless networks 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th base stations benefits of 2nd 3rd 4th 5th computer devices 2nd 3rd 4th 5th air mediums 2nd infrastructures 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th management systems 2nd 3rd 4th 5th 6th computer devicesNICs (network interface cards) 2nd 3rd 4th 5th 6th 7th information flow air medium 2nd 3rd 4th 5th 6th 7th 8th 9th 10th connections 2nd data signal transferrence end points 2nd types compared 2nd users 2nd wireless PANs 2nd 3rd 4th (Personal-Area Networks) applications 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th benefits of 2nd 3rd 4th 5th Bluetooth 2nd 3rd 4th 5th 6th interference 2nd 3rd 4th 5th 6th Bluetooth specifications data rates Enterprise systems home and small office systems control Internet connections printing 2nd streaming multimedia 2nd 3rd 4th synchronization 2nd IEEE 802.15 standard IEEE 802.15 standards 2nd 3rd IrDA (infrared Data Association) 2nd 3rd radio NICs radio waves routers tranceivers USB adapters 2nd 3rd user devices 2nd wireless network types compared 2nd wireless tranceivers antennas receivers transmitters wireless transceivers 2nd amplification antennas wireless WANs 2nd 3rd 4th (Wide-Area Networks) applications 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th field services location-based services 2nd utility companies vending companies benefits of 2nd 3rd 4th 5th CDMA (code division multiple access) 2nd CDPD (Cellular Digital Packet Data) cellular-based wireless WANs 2nd 3rd 4th 5th 6th 7th first generation cellular (1G cellular) second generation cellular (2G cellular) third generation cellular (3G cellular) 2nd 3rd 4th FDMA (frequency division multiple access) 2nd SDMA (spatial division multiple access) space-based wireless WANs meteor burst communications 2nd 3rd satellites 2nd 3rd 4th 5th TDMA (time division multiple access) technologies user devices 2nd 3rd antennas 2nd 3rd base stations 2nd 3rd 4th multiple technology support radio NICs 2nd 3rd 4th 5th wirelss network types compared 2nd WISPs (wireless Internet service providers) WISPs (Wireless Internet Service Providers) wireless MANs workgroup bridges WPA (Wi-Fi Protected Access) WPA (Wi-Fi Protected Access) ... Wireless Networks first- step By Jim Geier Publisher : Cisco Press Pub Date : August 03, 2004 Table of ISBN : 1-58720-111-9 • Contents Pages : 264... 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... Wireless PANs: Networks for Small Places Wireless PAN Components Wireless PAN Systems Chapter Summary Wireless PAN Technologies Chapter Review Questions Chapter 5 Wireless LANs: Networks for Buildings and Campuses