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Overview

Authorized Self-Study Guide

Interconnecting Cisco Network Devices, Part 2 (ICND2)

Third Edition

Foundation learning for CCNA ICND2 Exam 640-816

Steve McQuerry, CCIE® No. 6108

Interconnecting Cisco Network Devices, Part 2 (ICND2), is a Cisco®-authorized, self-paced learning tool for CCNA® foundation learning. This book provides you with the knowledge needed to install, operate, and troubleshoot a small to medium-size branch office enterprise network, including configuring several switches and routers, connecting to a WAN, and implementing network security.

In Interconnecting Cisco Network Devices, Part 2 (ICND2), you will study actual router and switch output to aid your understanding of how to configure these devices. Many notes, tips, and cautions are also spread throughout the book. Specific topics include constructing medium-size routed and switched networks, OSPF and EIGRP implementation, access control lists (ACL), address space management, and LAN extensions into a WAN. Chapter-ending review questions illustrate and help solidify the concepts presented in the book.

Whether you are preparing for CCNA certification or simply want to gain a better understanding of how to build medium-size Cisco networks, you will benefit from the foundation information presented in this book.

Interconnecting Cisco Network Devices, Part 2 (ICND2), is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.

Steve McQuerry, CCIE® No. 6108, is a consulting systems engineer with Cisco focused on data center architecture. Steve works with enterprise customers in the Midwestern United States to help them plan their data center architectures. He has been an active member of the internetworking community since 1991 and has held multiple certifications from Novell, Microsoft, and Cisco. Before joining Cisco Steve worked as an independent contractor with Global Knowledge, where he taught and developed coursework around Cisco technologies and certifications.

  • Review the Cisco IOS® Software command structure for routers and switches
  • Build LANs and understand how to overcome problems associated with Layer 2 switching
  • Evaluate the differences between link-state and distance vector routing protocols
  • Configure and troubleshoot OSPF in a single area
  • Configure and troubleshoot EIGRP
  • Identify and filter traffic with ACLs
  • Use Network Address Translation (NAT) and Port Address Translation (PAT) to conserve IPv4 address space and implement IPv6
  • Connect different sites over WANs or the Internet using IPsec VPN, SSL VPN, leased line, and Frame Relay connections

This volume is in the Certification Self-Study Series offered by Cisco Press®. Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations.

Category: Cisco Press—Cisco Certification

Covers: ICND2 Exam 640-816

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Product Details

  • ISBN-13: 9781587054631
  • Publisher: Cisco Press
  • Publication date: 2/27/2008
  • Series: Self-Study Guide Series
  • Edition description: New Edition
  • Edition number: 3
  • Pages: 384
  • Product dimensions: 7.62 (w) x 9.50 (h) x 1.17 (d)

Meet the Author

Steve McQuerry, CCIE No. 6108, is a consulting systems engineer with Cisco focused on data center architecture. Steve works with enterprise customers in the Midwestern United States to help them plan their data center architectures. Steve has been an active member of the internetworking community since 1991 and has held multiple certifications from Novell, Microsoft, and Cisco. Before joining Cisco, Steve worked as an independent contractor with Global Knowledge, where he taught and developed coursework around Cisco technologies and certifications.

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Read an Excerpt

IntroductionIntroduction

Since the introduction of the personal computer in the early 1970s, businesses have found more uses and applications for technology in the workplace. With the introduction of local-area networks, file sharing, and print sharing in the 1980s, it became obvious that distributed computing was no longer a passing fad. By the 1990s, computers became less expensive, and innovations such as the Internet allowed everyone to connect to computer services worldwide. Computing services have become large and distributed. The days of punch cards and green-bar paper are behind us, and a new generation of computing experts is being asked to keep this distributed technology operational. These experts are destined to have a new set of issues and problems to deal with, the most complex of them being connectivity and compatibility among differing systems and devices.

The primary challenge with data networking today is to link multiple devices' protocols and sites with maximum effectiveness and ease of use for end users. Of course, this must all be accomplished in a cost-effective way. Cisco offers a variety of products to give network managers and analysts the ability to face and solve the challenges of internetworking.

In an effort to ensure that these networking professionals have the knowledge to perform these arduous tasks, Cisco has developed a series of courses and certifications that act as benchmarks for internetworking professionals. These courses help internetworking professionals learn the fundamentals of internetworking technologies along with skills in configuring and installing Cisco products. The certification exams are designed to be a litmus test for the skills required to perform at various levels of internetworking. The Cisco certifications range from the associate level, Cisco Certified Network Associate (CCNA), through the professional level, Cisco Certified Network Professional (CCNP), to the expert level, Cisco Certified Internetwork Expert (CCIE).

The Interconnecting Cisco Network Devices, Part 2 (ICND2) course is one of two recommended training classes for CCNA preparation. As a self-study complement to the course, this book helps to ground individuals in the fundamentals of switches and routed internetworks. It presents the concepts, commands, and practices required to configure Cisco switches and routers to operate in corporate internetworks. You will be introduced to all the basic concepts and configuration procedures required to build a multiswitch, multirouter, and multigroup internetwork that uses LAN and WAN interfaces for the most commonly used routing and routed protocols. ICND provides the installation and configuration information that network administrators require to install and configure Cisco products.

Interconnecting Cisco Network Devices, Part 2 (ICND2), is the second part of a two-part, introductory-level series and is recommended for individuals who have one to three years of internetworking experience, are familiar with basic internetworking concepts, and have basic experience with the TCP/IP protocol. While the self-study book is designed for those who are pursuing the CCNA certification, it is also useful for network administrators responsible for implementing and managing small- and medium-sized business networks. Network support staff who perform a help-desk role in a medium- or enterprise-sized company will find this a valuable resource. Finally, Cisco customers or channel resellers and network technicians entering the internetworking industry who are new to Cisco products can benefit from the contents of this book.

Goals

The goal of this book is twofold. First, it is intended as a self-study book for the ICND2 test 640-816 and the CCNA test 640-802, which are part of the requirements for the CCNA certification. Like the certification itself, the book should help readers become literate in the use of switches, routers, and the associated protocols and technologies. The second goal is that someone who completes the book and the CCNA certification should be able to use these skills to select, connect, and configure Cisco devices in an internetworking environment. In particular, the book covers the basic steps and processes involved with moving data through the network using routing and Layer 2 switching.

Readers interested in more information about the CCNA certification should consult the Cisco website at http://www.cisco.com/en/US/learning/le3/le2/le0/le9/learning_certification_type_home.html. To schedule a Cisco certification test, contact Pearson Vue on the web at http://www.PearsonVue.com/cisco or Prometric on the web at http://www.2test.com.

Chapter Organization

This book is divided into eight chapters and an appendix and is designed to be read in order because many chapters build on content from previous chapters.


  • Chapter 1, "Review of Cisco IOS for Routers and Switches," provides a review of the Cisco IOS. This is an assumed knowledge for readers, but this chapter provides a brief review of command structure that is used throughout the other chapters of the book.
  • Chapter 2, "Medium-Sized Switched Network Construction," explores the operation and configuration of local-area networks, including the challenges associated with these networks, and describes how network devices are used to eliminate these problems focusing on Layer 2 switching.
  • Chapter 3, "Medium-Sized Routed Network Construction," describes routing operations. This chapter discusses the differences between link-state and distance vector routing protocols and provides the foundation for Chapters 4 and 5.
  • Chapter 4, "Single-Area OSPF Implementation," looks at how to configure OSPF to act as a routing protocol within a network. This chapter describes the operation of the protocol and provides configuration examples for a single area. The chapter also includes troubleshooting steps.
  • Chapter 5, "Implementing EIGRP," discusses the EIGRP routing protocol. It describes the operation of the protocol and the configuration requirements. It also includes troubleshooting steps.
  • Chapter 6, "Managing Traffic with Access Control Lists," discusses how access control lists are used in Cisco IOS to identify and filter traffic. The chapter discusses the configuration of the lists and provides some practical applications of these lists.
  • Chapter 7, "Managing Address Spaces with NAT and IPv6," discusses the limitations of IPv4 address space, specifically that these addresses are running out. The chapter discusses how Network Address Translation (NAT) and Port Address Translation (PAT) are helping conserve addresses and how IPv6 will alleviate this problem. The chapter also discusses the configuration of NAT, PAT, and IPv6.
  • Chapter 8, "Extending the Network into the WAN," describes how different sites can be connected across a wide-area network or using the Internet. It discusses VPN and SSL VPN (WebVPN) solutions as well as traditional leased line and Frame Relay connections. The chapter also provides a troubleshooting section.
  • The appendix, "Answers to Chapter Review Questions," provides answers to the review questions at the end of each chapter.


Features

This book features actual router and switch output to aid in the discussion of the configuration of these devices. Many notes, tips, and cautions are also spread throughout the text. In addition, you can find many references to standards, documents, books, and websites to help you understand networking concepts. At the end of each chapter, your comprehension and knowledge are tested by review questions prepared by a certified Cisco instructor.

Note - The operating systems used in this book are Cisco IOS Software Release 12.4 for the routers, and Cisco Catalyst 2960 is based on Cisco IOS Software Release 12.2.

© Copyright Pearson Education. All rights reserved.


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Table of Contents

Foreword

Introduction

Chapter 1 Review of Cisco IOS for Routers and Switches

Chapter Objectives 3

Cisco IOS CLI Functions 4

Configuration Modes of Cisco IOS Software 4

Help Facilities of the Cisco IOS CLI 6

Commands Review 7

Summary of Cisco IOS CLI Commands 8

Chapter Summary 8

Review Questions 8

Chapter 2 Medium-Sized Switched Network Construction

Chapter Objectives

Implementing VLANs and Trunks

Understanding VLANs

VLAN Overview

Grouping Business Functions into VLANs

Applying IP Address Space in the Enterprise Network

Example: Network Design

Considering Traffic Source to Destination Paths

Voice VLAN Essentials

VLAN Operation

Understanding Trunking with 802.1Q

802.1Q Frame

802.1Q Native VLAN

Understanding VLAN Trunking Protocol

VTP Modes

VTP Operation

VTP Pruning

Configuring VLANs and Trunks

VTP Configuration

Example: VTP Configuration

802.1Q Trunking Configuration

VLAN Creation

VLAN Port Assignment

Adds, Moves, and Changes for VLANs

Adding VLANs and Port Membership

Changing VLANs and Port Membership

Deleting VLANs and Port Membership

Summary of Implementing VLANs and Trunks

Improving Performance with Spanning Tree

Building a Redundant Switched Topology

Choosing Interconnection Technologies

Determining Equipment and Cabling Needs

EtherChannel Overview

Redundant Topology

Recognizing Issues of a Redundant Switched Topology

Switch Behavior with Broadcast Frames

Broadcast Storms

Example: Broadcast Storms

Multiple Frame Transmissions

Example: Multiple Transmissions

MAC Database Instability

Resolving Issues with STP

Spanning-Tree Operation

Example: Selecting the Root Bridge

Example: Spanning-Tree Operation

Example: Spanning-Tree Path Cost

Example: Spanning-Tree Recalculation

STP Convergence

Per VLAN Spanning Tree+

PVST+ Operation

Rapid Spanning Tree Protocol

Per VLAN RSTP

Multiple Spanning Tree Protocol

RSTP Port Roles

Configuring RSTP

Summary of Improving Performance with Spanning Tree

Routing Between VLANs

Understanding Inter-VLAN Routing

Example: Router on a Stick

Example: Subinterfaces

Configuring Inter-VLAN Routing

Summary of Routing Between VLANs

Securing the Expanded Network

Overview of Switch Security Concerns

Securing Switch Devices

Securing Switch Protocols

Mitigating Compromises Launched Through a Switch

Describing Port Security

802.X Port-Based Authentication

Summary of Securing the Expanded Network

Troubleshooting Switched Networks

Troubleshooting Switches

Troubleshooting Port Connectivity

Hardware Issues

Configuration Issues

Troubleshooting VLANs and Trunking

Native VLAN Mismatches

Trunk Mode Mismatches

VLANs and IP Subnets

Inter-VLAN Connectivity

Troubleshooting VTP

Unable to See VLAN Details in the show run Command Output

Cisco Catalyst Switches Do Not Exchange VTP Information

Recently Installed Switch Causes Network Problems

All Ports Inactive After Power Cycle

Troubleshooting Spanning Tree

Use the Diagram of the Network

Identify a Bridging Loop

Log STP Events

Temporarily Disable Unnecessary Features

Designate the Root Bridge

Verify the Configuration of RSTP

Summary of Troubleshooting Switched Networks

Chapter Summary

Review Questions

Chapter 3 Medium-Sized Routed Network Construction

Chapter Objectives

Reviewing Dynamic Routing

Understanding Distance Vector Routing Protocols

Route Discovery, Selection, and Maintenance

Routing Loops

Route Maintenance Using Hold-Down Timers

Route Maintenance Using Triggered Updates

Route Maintenance Using Hold-Down Timers with Triggered Updates

Link-State and Advanced Distance Vector Protocols

Link-State Routing Protocol Algorithms

Advanced Distance Vector Protocol Algorithm

Summary of Reviewing Routing Operations

Implementing Variable-Length Subnet Masks

Reviewing Subnets

Computing Usable Subnetworks and Hosts

Introducing VLSMs

Route Summarization with VLSM

Summary of Implementing Variable-Length Subnet Masks

Chapter Summary

Review Questions

Chapter 4 Single-Area OSPF Implementation

Chapter Objectives

Introducing OSPF

Establishing OSPF Neighbor Adjacencies

SPF Algorithm

Configuring and Verifying OSPF

Loopback Interfaces

Verifying the OSPF Configuration

Using OSPF debug Commands

Load Balancing with OSPF

OSPF Authentication

Types of Authentication

Configuring Plaintext Password Authentication

Example: Plaintext Password Authentication Configuration

Verifying Plaintext Password Authentication

Summary of OSPF Introduction

Troubleshooting OSPF

Components of Troubleshooting OSPF

Troubleshooting OSPF Neighbor Adjacencies

Troubleshooting OSPF Routing Tables

Troubleshooting Plaintext Password Authentication

Summary of Troubleshooting OSPF

Chapter Summary

Review Questions

Chapter 5 Implementing EIGRP

Chapter Objectives

Implementing EIGRP

Introducing EIGRP

Configuring and Verifying EIGRP

Load Balancing with EIGRP

EIGRP Metric

Load Balancing Across Equal Paths

Configuring Load Balancing Across Unequal-Cost Paths

Example: Variance

EIGRP Authentication

Creating a Key Chain

Configuring MD5 Authentication for EIGRP

Example: MD5 Authentication Configuration

Verifying MD5 Authentication

Summary of Implementing EIGRP

Troubleshooting EIGRP

Components of Troubleshooting EIGRP

Troubleshooting EIGRP Neighbor Relationships

Troubleshooting EIGRP Routing Tables

Troubleshooting EIGRP Authentication

Example: Successful MD5 Authentication

Example: Troubleshooting MD5 Authentication Problems

Summary of Troubleshooting EIGRP

Chapter Summary

Review Questions

Chapter 6 Managing Traffic with Access Control Lists

Chapter Objectives

Access Control List Operation

Understanding ACLs

ACL Operation

Types of ACLs

ACL Identification

Additional Types of ACLs

Dynamic ACLs

Reflexive ACLs

Time-Based ACLs

ACL Wildcard Masking

Summary of ACL Operations

Configuring ACLs

Configuring Numbered Standard IPv4 ACLs

Example: Numbered Standard IPv4 ACL—Permit My Network Only

Example: Numbered Standard IPv4 ACL—Deny a Specific Host

Example: Numbered Standard IPv4 ACL—Deny a Specific Subnet

Controlling Access to the Router Using ACLs

Configuring Numbered Extended IPv4 ACLs

Extended ACL with the established Parameter

Numbered Extended IP ACL: Deny FTP from Subnets

Numbered Extended ACL: Deny Only Telnet from Subnet

Configuring Named ACLs

Creating Named Standard IP ACLs

Creating Named Extended IP ACLs

Named Extended ACL: Deny a Single Host from a Given Subnet

Named Extended ACL—Deny a Telnet from a Subnet

Adding Comments to Named or Numbered ACLs

Summary of Configuring ACLs

Troubleshooting ACLs

Problem: Host Connectivity

Summary of Troubleshooting ACLs

Chapter Summary

Review Questions

Chapter 7 Managing Address Spaces with NAT and IPv6

Chapter Objectives

Scaling the Network with NAT and PAT

Introducing NAT and PAT

Translating Inside Source Addresses

Static NAT Address Mapping

Dynamic Address Translation

Overloading an Inside Global Address

Resolving Translation Table Issues

Resolving Issues with Using the Correct Translation Entry

Summary of Scaling the Network with NAT and PAT

Transitioning to IPv6

Reasons for Using IPv6

Understanding IPv6 Addresses

Global Addresses

Reserved Addresses

Private Addresses

Loopback Address

Unspecified Address

IPv6 over Data Link Layers

Assigning IPv6 Addresses

Manual Interface ID Assignment

EUI-64 Interface ID Assignment

Stateless Autoconfiguration

DHCPv6 (Stateful)

Use of EUI-64 Format in IPv6 Addresses

Routing Considerations with IPv6

Strategies for Implementing IPv6

Configuring IPv6

Configuring and Verifying RIPng for IPv6

Example: RIPng for IPv6 Configuration

Summary of Transitioning to IPv6

Chapter Summary

Review Questions

Chapter 8 Extending the Network into the WAN

Chapter Objectives

Introducing VPN Solutions

VPNs and Their Benefits

Types of VPNs

Benefits

Restrictions

IPsec SSL VPN (WebVPN)

Benefits

Restrictions

Components of VPNs

Introducing IPsec

IPsec Protocol Framework

Summary of Introducing VPN Solutions

Establishing a Point-to-Point WAN Connection with PPP

Understanding WAN Encapsulations

Overview of PPP

Configuring and Verifying PPP

Example: PPP and CHAP Configuration

Example: Verifying PPP Encapsulation Configuration

Example: Verifying PPP Authentication

Summary of Establishing a Point-to-Point WAN Connection with PPP

Establishing a WAN Connection with Frame Relay

Understanding Frame Relay

Example: Frame Relay Terminology—DLCI

Example: Frame Relay Address Mapping

Configuring Frame Relay

Example: Configuring Frame Relay Point-to-Point Subinterfaces

Example: Configuring Frame Relay Multipoint Subinterfaces

Verifying Frame Relay

Summary of Establishing a WAN Connection with Frame Relay

Troubleshooting Frame Relay WANs

Components of Troubleshooting Frame Relay

Troubleshooting Frame Relay Connectivity Issues

Summary of Troubleshooting Frame Relay WANs

Chapter Summary

Review Questions

Appendix Answers to Chapter Review Questions

Index

1587054639 TOC 1/16/2008

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Preface

Introduction

Since the introduction of the personal computer in the early 1970s, businesses have found more uses and applications for technology in the workplace. With the introduction of local-area networks, file sharing, and print sharing in the 1980s, it became obvious that distributed computing was no longer a passing fad. By the 1990s, computers became less expensive, and innovations such as the Internet allowed everyone to connect to computer services worldwide. Computing services have become large and distributed. The days of punch cards and green-bar paper are behind us, and a new generation of computing experts is being asked to keep this distributed technology operational. These experts are destined to have a new set of issues and problems to deal with, the most complex of them being connectivity and compatibility among differing systems and devices.

The primary challenge with data networking today is to link multiple devices' protocols and sites with maximum effectiveness and ease of use for end users. Of course, this must all be accomplished in a cost-effective way. Cisco offers a variety of products to give network managers and analysts the ability to face and solve the challenges of internetworking.

In an effort to ensure that these networking professionals have the knowledge to perform these arduous tasks, Cisco has developed a series of courses and certifications that act as benchmarks for internetworking professionals. These courses help internetworking professionals learn the fundamentals of internetworking technologies along with skills in configuring and installing Cisco products. The certification exams are designed to be a litmus test for the skills required to perform at various levels of internetworking. The Cisco certifications range from the associate level, Cisco Certified Network Associate (CCNA), through the professional level, Cisco Certified Network Professional (CCNP), to the expert level, Cisco Certified Internetwork Expert (CCIE).

The Interconnecting Cisco Network Devices, Part 2 (ICND2) course is one of two recommended training classes for CCNA preparation. As a self-study complement to the course, this book helps to ground individuals in the fundamentals of switches and routed internetworks. It presents the concepts, commands, and practices required to configure Cisco switches and routers to operate in corporate internetworks. You will be introduced to all the basic concepts and configuration procedures required to build a multiswitch, multirouter, and multigroup internetwork that uses LAN and WAN interfaces for the most commonly used routing and routed protocols. ICND provides the installation and configuration information that network administrators require to install and configure Cisco products.

Interconnecting Cisco Network Devices, Part 2 (ICND2), is the second part of a two-part, introductory-level series and is recommended for individuals who have one to three years of internetworking experience, are familiar with basic internetworking concepts, and have basic experience with the TCP/IP protocol. While the self-study book is designed for those who are pursuing the CCNA certification, it is also useful for network administrators responsible for implementing and managing small- and medium-sized business networks. Network support staff who perform a help-desk role in a medium- or enterprise-sized company will find this a valuable resource. Finally, Cisco customers or channel resellers and network technicians entering the internetworking industry who are new to Cisco products can benefit from the contents of this book.

Goals

The goal of this book is twofold. First, it is intended as a self-study book for the ICND2 test 640-816 and the CCNA test 640-802, which are part of the requirements for the CCNA certification. Like the certification itself, the book should help readers become literate in the use of switches, routers, and the associated protocols and technologies. The second goal is that someone who completes the book and the CCNA certification should be able to use these skills to select, connect, and configure Cisco devices in an internetworking environment. In particular, the book covers the basic steps and processes involved with moving data through the network using routing and Layer 2 switching.

Readers interested in more information about the CCNA certification should consult the Cisco website at http://www.cisco.com/en/US/learning/le3/le2/le0/le9/learning_certification_type_home.html. To schedule a Cisco certification test, contact Pearson Vue on the web at http://www.PearsonVue.com/cisco or Prometric on the web at http://www.2test.com.

Chapter Organization

This book is divided into eight chapters and an appendix and is designed to be read in order because many chapters build on content from previous chapters.

  • Chapter 1, "Review of Cisco IOS for Routers and Switches," provides a review of the Cisco IOS. This is an assumed knowledge for readers, but this chapter provides a brief review of command structure that is used throughout the other chapters of the book.
  • Chapter 2, "Medium-Sized Switched Network Construction," explores the operation and configuration of local-area networks, including the challenges associated with these networks, and describes how network devices are used to eliminate these problems focusing on Layer 2 switching.
  • Chapter 3, "Medium-Sized Routed Network Construction," describes routing operations. This chapter discusses the differences between link-state and distance vector routing protocols and provides the foundation for Chapters 4 and 5.
  • Chapter 4, "Single-Area OSPF Implementation," looks at how to configure OSPF to act as a routing protocol within a network. This chapter describes the operation of the protocol and provides configuration examples for a single area. The chapter also includes troubleshooting steps.
  • Chapter 5, "Implementing EIGRP," discusses the EIGRP routing protocol. It describes the operation of the protocol and the configuration requirements. It also includes troubleshooting steps.
  • Chapter 6, "Managing Traffic with Access Control Lists," discusses how access control lists are used in Cisco IOS to identify and filter traffic. The chapter discusses the configuration of the lists and provides some practical applications of these lists.
  • Chapter 7, "Managing Address Spaces with NAT and IPv6," discusses the limitations of IPv4 address space, specifically that these addresses are running out. The chapter discusses how Network Address Translation (NAT) and Port Address Translation (PAT) are helping conserve addresses and how IPv6 will alleviate this problem. The chapter also discusses the configuration of NAT, PAT, and IPv6.
  • Chapter 8, "Extending the Network into the WAN," describes how different sites can be connected across a wide-area network or using the Internet. It discusses VPN and SSL VPN (WebVPN) solutions as well as traditional leased line and Frame Relay connections. The chapter also provides a troubleshooting section.
  • The appendix, "Answers to Chapter Review Questions," provides answers to the review questions at the end of each chapter.

Features

This book features actual router and switch output to aid in the discussion of the configuration of these devices. Many notes, tips, and cautions are also spread throughout the text. In addition, you can find many references to standards, documents, books, and websites to help you understand networking concepts. At the end of each chapter, your comprehension and knowledge are tested by review questions prepared by a certified Cisco instructor.


Note - The operating systems used in this book are Cisco IOS Software Release 12.4 for the routers, and Cisco Catalyst 2960 is based on Cisco IOS Software Release 12.2.


© Copyright Pearson Education. All rights reserved.

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  • Anonymous

    Posted April 20, 2008

    VERY VERY HIGHLY RECOMMENDED!!

    Do you have one to three years of internetworking experience, are familiar with basic internetworking concepts, and have basic experience with the TCP/IP protocol? If you do, then this book is for you. Author Stephen McQuerry, has done an outstanding job of writing the third edition of a self-study book for those who are pursuing the CCNA certification. McQuerry, begins with a brief review of the command structure that is used throughout the other chapters of the book. Then, the author explores the operation and configuration of LANs. The author also describes routing operations. He continues by looking at how to configure OSPF to act as a routing protocol within a network. Then, the author discusses the EIGRP routing protocol. Next, he discusses how access control lists are used in Cisco IOS to identify and filter traffic. The author continues by discussing the limitations of IPv4 address space, specifically that these addresses are running out. Finally, he describes how different sites can be connected across a wide-area network or using the Internet. This most excellent book is intended as a self-study resource that covers the subjects on the 640-816 (ICND2 test) exam as well as the ICND2 material of the 640-802 (CCNA test) exam. Perhaps more importantly, this book should help you become literate in the use of switches, routers, and the associated protocols and technologies.

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