802.11 Wireless Networks: The Definitive Guide, 2/e (Paperback)

Matthew S. Gast

  • 出版商: O'Reilly
  • 出版日期: 2005-05-31
  • 定價: $1,650
  • 售價: 9.5$1,568
  • 貴賓價: 8.8$1,452
  • 語言: 英文
  • 頁數: 672
  • 裝訂: Paperback
  • ISBN: 0596100523
  • ISBN-13: 9780596100520
  • 相關分類: 802.11Wireless-networks
  • 立即出貨 (庫存 < 4)

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Description:

As we all know by now, wireless networks offer many advantages over fixed (or wired) networks. Foremost on that list is mobility, since going wireless frees you from the tether of an Ethernet cable at a desk. But that's just the tip of the cable-free iceberg. Wireless networks are also more flexible, faster and easier for you to use, and more affordable to deploy and maintain.

The de facto standard for wireless networking is the 802.11 protocol, which includes Wi-Fi (the wireless standard known as 802.11b) and its faster cousin, 802.11g. With easy-to-install 802.11 network hardware available everywhere you turn, the choice seems simple, and many people dive into wireless computing with less thought and planning than they'd give to a wired network. But it's wise to be familiar with both the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start.

This updated edition covers everything you'll ever need to know about wireless technology. Designed with the system administrator or serious home user in mind, it's a no-nonsense guide for setting up 802.11 on Windows and Linux. Among the wide range of topics covered are discussions on:

  • deployment considerations
  • network monitoring and performance tuning
  • wireless security issues
  • how to use and select access points
  • network monitoring essentials
  • wireless card configuration
  • security issues unique to wireless networks


With wireless technology, the advantages to its users are indeed plentiful. Companies no longer have to deal with the hassle and expense of wiring buildings, and households with several computers can avoid fights over who's online. And now, with 802.11 Wireless Networks: The Definitive Guide, 2nd Edition, you can integrate wireless technology into your current infrastructure with the utmost confidence.

 

Table of Contents:

Foreword

Preface

1. Introduction to Wireless Networking

     Why Wireless?

     What Makes Wireless Networks Different

     A Network by Any Other Name...

2. Overview of 802.11 Networks

     IEEE 802 Network Technology Family Tree
     802.11 Nomenclature and Design

     802.11 Network Operations

     Mobility Support

3. 802.11 MAC Fundamentals

     Challenges for the MAC

     MAC Access Modes and Timing

     Contention-Based Access Using the DCF

     Fragmentation and Reassembly

     Frame Format

     Encapsulation of Higher-Layer Protocols Within 802.11

     Contention-Based Data Service

     Frame Processing and Bridging

4. 802.11 Framing in Detail

     Data Frames

     Control Frames

     Management Frames

     Frame Transmission and Association and Authentication States

5. Wired Equivalent Privacy (WEP)

     Cryptographic Background to WEP

     WEP Cryptographic Operations

     Problems with WEP

     Dynamic WEP

6. User Authentication with 802.1X

     The Extensible Authentication Protocol

     EAP Methods

     802.1X: Network Port Authentication

     802.1X on Wireless LANs

7. 802.11i: Robust Security Networks, TKIP, and CCMP

     The Temporal Key Integrity Protocol (TKIP)

     Counter Mode with CBC-MAC (CCMP)

     Robust Security Network (RSN) Operations

8. Management Operations

     Management Architecture

     Scanning

     Authentication

     Preauthentication

     Association

     Power Conservation

     Timer Synchronization

     Spectrum Management

9. Contention-Free Service with the PCF

     Contention-Free Access Using the PCF

     Detailed PCF Framing

     Power Management and the PCF

10. Physical Layer Overview

     Physical-Layer Architecture

     The Radio Link

     RF Propagation with 802.11

     RF Engineering for 802.11

11. The Frequency-Hopping (FH) PHY

     Frequency-Hopping Transmission

     Gaussian Frequency Shift Keying (GFSK)

     FH PHY Convergence Procedure (PLCP)

     Frequency-Hopping PMD Sublayer

     Characteristics of the FH PHY

12. The Direct Sequence PHYs: DSSS and HR/DSSS (802.11b)

     Direct Sequence Transmission

     Differential Phase Shift Keying (DPSK)

     The "Original" Direct Sequence PHY

     Complementary Code Keying

     High Rate Direct Sequence PHY

13. 802.11a and 802.11j: 5-GHz OFDM PHY

     Orthogonal Frequency Division Multiplexing (OFDM)

     OFDM as Applied by 802.11a

     OFDM PLCP

     OFDM PMD

     Characteristics of the OFDM PHY

14. 802.11g: The Extended-Rate PHY (ERP)

     802.11g Components

     ERP Physical Layer Convergence (PLCP)

     ERP Physical Medium Dependent (PMD) Layer

15. A Peek Ahead at 802.11n: MIMO-OFDM

     Common Features

     WWiSE

     TGnSync

     Comparison and Conclusions

16. 802.11 Hardware

     General Structure of an 802.11 Interface

     Implementation-Specific Behavior

     Reading the Specification Sheet

17. Using 802.11 on Windows

     Windows XP

     Windows 2000

     Windows Computer Authentication

18. 802.11 on the Macintosh

     The AirPort Extreme Card

     802.1X on the AirPort

19. Using 802.11 on Linux

     PCMCIA Support on Linux

     Linux Wireless Extensions and Tools

     Agere (Lucent) Orinoco

     Atheros-Based cards and MADwifi

     802.1X on Linux with xsupplicant

20. Using 802.11 Access Points

     General Functions of an Access Point

     Power over Ethernet (PoE)

     Selecting Access Points

     Cisco 1200 Access Point

     Apple AirPort

21. Logical Wireless Network Architecture

     Evaluating a Logical Architecture

     Topology Examples

     Choosing Your Logical Architecture

22. Security Architecture

     Security Definition and Analysis

     Authentication and Access Control

     Ensuring Secrecy Through Encryption

     Selecting Security Protocols

     Rogue Access Points

23. Site Planning and Project Management

     Project Planning and Requirements

     Network Requirements

     Physical Layer Selection and Design

     Planning Access-Point Placement

     Using Antennas to Tailor Coverage

24. 802.11 Network Analysis

     Network Analyzers

     Ethereal

     802.11 Network Analysis Checklist

     Other Tools

25. 802.11 Performance Tuning

     802.11 Performance Calculations

     Improving Performance

     Tunable 802.11 Parameters

26. Conclusions and Predictions

     Standards Work

     Current Trends in Wireless Networking

     The End

Glossary

Index

商品描述(中文翻譯)

描述:
正如我們現在都知道的,無線網絡相對於固定(或有線)網絡具有許多優勢。首先是移動性,因為無線網絡使您不再受限於桌上的以太網纜。但這只是無線網絡的冰山一角。無線網絡還更靈活、更快速、更易於使用,並且部署和維護成本更低廉。

無線網絡的事實標準是802.11協議,其中包括Wi-Fi(即802.11b無線標準)及其更快的表兄弟802.11g。隨處可見的易於安裝的802.11網絡硬件,使得選擇似乎很簡單,許多人在無線計算中比有線網絡更少考慮和規劃。但熟悉802.11協議的能力和風險是明智的。第二版的《802.11無線網絡:權威指南》是開始的完美地方。

這本更新的版本涵蓋了您需要了解的有關無線技術的一切。設計時考慮到系統管理員或嚴肅的家庭用戶,這是一本關於在Windows和Linux上設置802.11的直截了當的指南。涵蓋的主題範圍廣泛,包括:部署考慮事項、網絡監控和性能調整、無線安全問題、如何使用和選擇接入點、網絡監控基礎知識、無線卡配置以及無線網絡獨有的安全問題。

有了無線技術,對用戶的優勢確實很多。公司不再需要處理建築物布線的麻煩和費用,擁有多台電腦的家庭可以避免爭奪上網的問題。現在,有了第二版的《802.11無線網絡:權威指南》,您可以充滿信心地將無線技術整合到您目前的基礎設施中。

目錄:
前言
前言
1. 無線網絡介紹
- 為什麼選擇無線?
- 無線網絡的不同之處
- 網絡的其他名稱...
2. 802.11網絡概述
- IEEE 802網絡技術家族樹
- 802.11命名和設計
- 802.11網絡操作
- 移動支持
3. 802.11 MAC基礎知識
- MAC的挑戰
- MAC存取模式和定時
- 使用DCF的基於競爭的存取
- 分段和重組
- 帧格式
- 高層協議的封裝