CCNP：BCRAN学习指南：642-821（英文版）

　　这本针对修订后的CCNP考试，642-821的学习指南为读者提供了：对关键考试内容的深入讲解；有关对Cisco远程访问网络进行规划、配置和故障诊断的实用信息；成百道富有挑战性的复习题；选配光碟中有最新的考试复习软件，包括测试引擎、示例仿真题和电子闪存卡。Robert Padjen是一家大型金融机构的技术总监，通过了CCNP安全和CCDP认证。他已经撰写了数十本网络管理、诊断和设计等方面的书籍。作为路由和交换领域真正的无冕之王，Cisco公司设立了一系列认证考试，保证使用、管理或提供Cisco产品服务的技术人员能够具备相应的技术水平，其考试目标和内容随其产品不断地发生变化。为覆盖其最新的考试目标，我们采用“原版引进，重新排版印刷”的方式以最快的速度出版Cisco认证考试系列相应科目的辅导丛书来满足读者的需要。本书作为系列中的一本，针对CCNP：642-821考试而推出。书中的内容从远程访问和异步连接开始，介绍了点对点协议、Window和其他操作系统联网、ISDN和DSL，接着介绍了电缆调制解调器、VPN和帧中继，最后介绍了排队和压缩、地址翻译服务和安全。全书每一章后均有大量复习题和答案，其篇幅得当，内容新颖实用，不仅适用于网络管理人员、网络设计和开发人员，更是CCNP应试人员的必备材料。

　　RobertPadjen是一家大型金融机构的技术总监，通过了CCNP安全和CCDP认证。他已经撰写了数十本网络管理、诊断和设计等方面的书籍。

Introduction
Assessment Test
Chapter 1  Cisco Solutions for Remote Access
           What Is Remote Access?
           Choosing Remote Connection Cisco Products
           Cabling and Assembling the WAN
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 2  Asynchronous Connections
           Understanding Asynchronous Modems
           Configuring Asynchronous Modem Connections
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 3  Point-to-Point Protocol
           PPP Overview and Architecture
           Configuring Access Servers
           PAP and CHAP Authentication
           PPP Callback
           PPP Compression and Multilink
           Verifying and Troubleshooting PPP
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 4  Using Microsoft Winodws 95/98/2000/XP
           Reasons to Use Dial-Up Networking
           Configuring Dial-Up Networking with Winodws 95/98
           Configuring a Dial-Up Connection Client
           Setting Additional Configuration Options
           Verifying a Dial-Up Connection
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Review Questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 5  Integrated Services Digital Network(ISDN)
           What is Integrated Services Digital network (ISDN)?
           ISDN Line Options
           ISDN Function Groups
           ISDN Reference Points
           ISDN Protocols
           LAPD Frames
           Layer 2 Negotiation
           ISDN Call Setup and Teardown
           ISDN Configuration
           Authentication
           Dial-on-Demand Routing(DDR)
           Dial Backup
           Bandwidth on Demand
           Channelized T-1/E-1(PRI)
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 6  Remote Access with Digital Subscriber Line
           What is Digital Subscriber Line?
           The Different Flavors of DSL
           Cisco DSL Routers
           Configuring DSL
           Troubleshooting DSL
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Hands-on Lab
           Answers to Review Questions
Chapter 7  Remote Access with Cable Modems and Virtual Private network
           What is a Cable Modem?
           Cisco's Cable Modem Product Line
           Cisco Cable Manager
           Virtual Private Networks
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Hands-on Lab
           Answers to Review Questions
Chapter 8  Frame Relay
           Undersatanding Frame Relay
           Frame Relay Virtual Circuits
           Data Link Connection Identifier(DLCI)
           Frame Relay Local Management Interface(LMI)
           Configuring Frame RElay
           Frame Relay congestion Control
           Point-to-Point and Multipoint Interfaces
           Verifying Frame RElay
           Frame RElay Switching
           Frame Relay Traffic Shaping
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 9  Queuing and Compression
           Queuing
           IOS Queuing Options
           Cisco's newer Queuing Technologies
           Compression
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 10 Network Address Translation(NAT) and Port Address Translation
           Understanding Network Address tRanslation(NAT)
           Performing NAT Operations
           Configuring NAT
           Using Port Address Translation(PAT)
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Chapter 11 Centralized Security in Remote Access Networks
           Security Terminology
           Cisco Access Control Solutions
           Authentication, Authorization, and Accounting
           Router Access Modes
           AAA Configuration
           Virtual Profiles
           Summary
           Exam Essentials
           Key Terms
           Written Lab
           Hands-on Labs
           Review questions
           Answers to Written Lab
           Answers to Review Questions
Glossary