Accessing the WAN: CCNA Exploration Labs and Study Guide (Lab Companion Series) / Edition 1

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Overview

Accessing the WAN CCNA Exploration Labs and Study Guide

John Rullan

Accessing the WAN, CCNA Exploration Labs and Study Guide is designed to support your learning the technologies and network services required by converged applications as taught in Version 4 of the Cisco® Networking Academy® CCNA® Exploration curriculum. Each chapter contains a Study Guide section and a Labs and Activities section.

Study Guide

The dozens of exercises in this book help you learn the concepts and configurations crucial to your success as a CCNA exam candidate. Each chapter is slightly different and includes multiple-choice, fill-in-the-blank, and open-ended questions designed to help you

  • Review vocabulary
  • Strengthen troubleshooting skills
  • Boost configuration skills
  • Reinforce concepts
  • Research topics

Labs and Activities

The Labs and Activities sections include all the online curriculum labs plus some additional activities to ensure that you have mastered the practical skills needed to succeed in this course.

Hands-On Labs–This icon identifies the hands-on labs created for each chapter. Work through all the Basic, Challenge, and Troubleshooting labs to gain a deep understanding of the CCNA knowledge and skills needed to ultimately succeed on the CCNA Certification Exam.

Packet Tracer Activities–This icon identifies exercises created by the author for you to challenge yourself on specific tasks using Packet Tracer, a powerful network simulation program developed by Cisco.

Packet Tracer Companion–This icon identifies the companion activities that correspond to each hands-on lab. You'll use the Packet Tracer to complete a simulation of the hands-on lab.

Packet Tracer Skills Integration Challenge–Each chapter concludes with a culminating activity called the Packet Tracer Skills Integration Challenge. These challenging activities require you to combine several skills learned from the chapter–as well as previous chapters and courses–to successfully complete one comprehensive exercise.

John Rullan has been a Cisco Instructor since 1998. He teaches CCNA, CCNP®, and network security courses to students and teachers throughout the New York City Department of Education system.

Use this book with:

Accessing the WAN,

CCNA Exploration Companion Guide

ISBN-10: 1-58713-205-2

ISBN-13: 978-158713-205-6

Companion CD-ROM

The CD-ROM provides all the Packet Tracer Activity, Packet Tracer Companion, and Packet Tracer Challenge files that are referenced throughout the book as indicated by the icons. These files work with Packet Tracer software v4.1, which is available through the Academy Connection website. Ask your instructor for access to the Packet Tracer software.

This book is part of the Cisco Networking Academy Series from Cisco Press®. Books in this series support and complement the Cisco Networking Academy curriculum.

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Product Details

  • ISBN-13: 9781587132018
  • Publisher: Cisco Press
  • Publication date: 5/9/2008
  • Series: Lab Companion Series
  • Edition description: New Edition
  • Edition number: 1
  • Pages: 360
  • Sales rank: 1,016,564
  • Product dimensions: 8.40 (w) x 10.70 (h) x 0.90 (d)

Meet the Author

About the Author

John Rullan has been teaching at Thomas Edison High School in Jamaica, New York for the past 13 years and has been a part of the Cisco Networking Academy since 1998. He is the director of the Cisco Academy for the New York City Department of Education and is the citywide trainer. He provides support to the academy community and has presented at academy conferences throughout the country while working on the Instructional Support and Curriculum Maintenance teams. He also has taught CCNA, CCNP, and network security for the Borough of Manhattan Community College since 2000. He currently holds the Network+, CCNA, CCNP, and CCAI certifications.

About the Contributing Author

Sonya Coker received her undergraduate degree in secondary education from the University of South Alabama. She worked in the public school system for five years as a Title 1 Project Coordinator serving at-risk students. She joined the Cisco Academy program in 1998 when she started a local CCNA Academy at Murphy High School in Mobile, Alabama. She now works as a full-time developer in the Cisco Networking Academy program. She has worked on a variety of Academy curriculum projects, including CCNA, CCNP, Fundamentals of Wireless LANs, and Network Security. She has taught instructor training classes throughout the world.

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Read an Excerpt

IntroductionIntroduction

The Cisco Networking Academy is a comprehensive e-learning program that provides students with Internet technology skills. A Networking Academy delivers web-based content, online assessment, student performance tracking, and hands-on labs to prepare students for industry-standard certifications. The CCNA curriculum includes four courses oriented around the topics on the Cisco Certified Network Associate (CCNA) certification.

Accessing the WAN, CCNA Exploration Labs and Study Guide is a supplement to your classroom and laboratory experience with the Cisco Networking Academy. To succeed on the exam and achieve your CCNA certification, you should do everything in your power to arm yourself with a variety of tools and training materials to support your learning efforts. This Labs and Study Guide is just such a collection of tools. Used to its fullest extent, it will help you acquire the knowledge and practice the skills associated with the content area of the CCNA Exploration Accessing the WAN course. Specifically, this book helps you work on these main areas:

  • WAN technology concepts

  • PPP concepts and configuration

  • Frame Relay concepts and configuration

  • Network security threats and mitigation techniques

  • Access control list operation and configuration

  • Broadband services and technologies

  • Network Address Translation concepts and configuration

  • DHCP operation and configuration

  • IPv6 concepts

  • Troubleshooting methodologies and tools

Labs and Study Guides similar to this one are also available for the other three courses: Network Fundamentals, CCNA Exploration Labs andStudy Guide; Routing Protocols and Concepts, CCNA Exploration Labs and Study Guide; and LAN Switching and Wireless, CCNA Exploration Labs and Study Guide.Audience for This Book

This book's main audience is anyone taking the CCNA Exploration Accessing the WAN course of the Cisco Networking Academy curriculum. Many Academies use this book as a required tool in the course, and other Academies recommend the Labs and Study Guides as an additional source of study and practice materials.Goals and Methods

The most important goal of this book is to help you pass the CCNA exam (640-802). Passing this foundation exam means that you not only have the required knowledge of the technologies covered by the exam, but that you can plan, design, implement, operate, and troubleshoot these technologies. In other words, these exams are rigorously application-based. You can view the exam topics any time at http://www.cisco.com/go/certifications. The topics are divided into eight categories:

  • Describe how a network works

  • Configure, verify, and troubleshoot a switch with VLANs and interswitch communications

  • -Implement an IP addressing scheme and IP Services to meet network requirements in a

  • medium-size Enterprise branch office network

  • Configure, verify, and troubleshoot basic router operation and routing on Cisco devices

  • Explain and select the appropriate administrative tasks required for a WLAN

  • Identify security threats to a network, and describe general methods to mitigate those threats

  • Implement, verify, and troubleshoot NAT and ACLs in a medium-size Enterprise branch office

  • network

  • Implement and verify WAN links

The Accessing the WAN course focuses on the third, fifth, sixth, seventh, and eighth topics.

The Study Guide portion of each chapter offers exercises that help you learn the Accessing the WAN concepts as well as the configurations crucial to your success as a CCNA exam candidate. Each chapter is slightly different and includes some or all of the following types of exercises:

  • Vocabulary matching and completion

  • Skill-building activities and scenarios

  • Configuration scenarios

  • Concept questions

  • Internet research

In the configuration chapters, you'll find many Packet Tracer Activities that work with the Cisco Packet Tracer tool. Packet Tracer allows you to create networks, visualize how packets flow in the network, and use basic testing tools to determine whether the network would work. When you see this icon, you can use Packet Tracer with the listed file to perform a task suggested in this book. The activity files are available on this book's CD-ROM; Packet Tracer software, however, is available through the Academy Connection website. Ask your instructor for access to Packet Tracer.

The Labs and Activities portion of each chapter includes all the online Curriculum Labs, some additional supplemental labs that you can perform with Packet Tracer, and a Packet Tracer Skills Integration Challenge Activity. The Curriculum Labs are divided into three categories:

  • Basic: The Basic Labs are procedural in nature and assume that you have no experience configuring the technologies that are the topic of the lab.

  • Challenge: The Challenge Labs cover implementations and assume that you have a firm-enough grasp on the technologies to "go it alone." These labs often give you only a general requirement that you must implement fully without the details of each small step. In other words, you must use the knowledge and skills you gained in the chapter text, activities, and Basic Lab to successfully complete the Challenge Lab. Avoid the temptation to work through the Challenge Lab by flipping back through the Basic Lab when you are unsure of a command. Do not try to short-circuit your CCNA training. You need a deep understanding of CCNA knowledge and skills to ultimately be successful on the CCNA exam.

  • Troubleshooting: The Troubleshooting Labs ask you to fix a broken network. These labs include corrupted scripts that you purposely load onto the routers. Then you use troubleshooting techniques to isolate problems and implement the solution. By the end of the lab, you should have a functional network with full end-to-end connectivity.

Most of the Hands-on Labs include Packet Tracer Companion Activities, in which you can use Packet Tracer to complete a simulation of the lab.

Each chapter ends with a

Packet Tracer Skills Integration Challenge.

These activities require you to pull together several skills learned from the chapter—as well as previous chapters and courses—to successfully complete one comprehensive exercise.A Word About Packet Tracer

Packet Tracer is a self-paced, visual, interactive teaching and learning tool developed by Cisco. Lab activities are an important part of networking education. However, lab equipment can be a scarce resource. Packet Tracer provides a visual simulation of equipment and network processes to offset the challenge of limited equipment. Students can spend as much time as they like completing standard lab exercises through Packet Tracer, and they have the option to work from home. Although Packet Tracer is not a substitute for real equipment, it allows students to practice using a command-line interface. This "e-doing" capability is a fundamental component of learning how to configure routers and switches from the command line.

Packet Tracer version 4.x is available only to Cisco Networking Academies through the Academy Connection website.How This Book Is Organized

Because the content of this book and the online curriculum is sequential, you should work through this book in order, beginning with Chapter 1.

The book covers the major topic headings in the same sequence as the online curriculum for the CCNA Exploration Accessing the WAN course. This book has eight chapters with the same numbers and names as the online course chapters.

If necessary, a chapter uses a single topology for the exercises in the Study Guide portion. This single topology allows for better continuity and easier understanding of switching commands, operations, and outputs. However, the topology is different from the one used in the online curriculum and the Companion Guide. A different topology affords you the opportunity to practice your knowledge and skills without just simply recording the information you find in the text.

  • Chapter 1, "Introduction to WANs":

    The exercises in the Study Guide portion of this chapter focus on LAN design concepts, including vocabulary and the three-layer hierarchical model. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Chapter 2, "PPP": The exercises in the first part of this chapter help you understand basic Ethernet and switching concepts, including building the MAC address table and collision and broadcast domains. Then the Packet Tracer exercises cover, in detail, how to configure a switch, including basic switch management and configuring switch security. The Lab portion of the chapter includes two Basic Labs, a Challenge Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Chapter 3, "Frame Relay": The exercises in the first portion of this chapter focus on the concepts of VLANs, including benefits of VLANs and types of VLANs. The exercises then cover VLAN trunking concepts before moving into a section devoted to a VLAN and trunk configuration Packet Tracer exercise. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Chapter 4, "Network Security": The exercises in this chapter focus on key network security threats, tools, and mitigation techniques for Cisco routers. Configuration practice is provided for router security tasks. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Chapter 5, "ACLs": Exercises in this chapter focus on the concept of redundant LAN topologies, using STP and its variants to stop loops, and the commands to manipulate root bridge elections. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Chapter 6, "Teleworker Services": This short chapter focuses on how to configure inter-VLAN routing, including two Packet Tracer exercises. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Chapter 7, "IP Addressing Services": The exercises in this chapter include several matching term activities, multiple choice questions, fill-in-the-blank exercises, and concept questions that test your knowledge on DHCP and scaling IP addresses with the use of NAT and PAT. It also tests your knowledge of IPv6 and routing using the next generation of RIP. The Lab portion of this chapter includes all the online curriculum labs for DHCP and NAT as well as four additional Packet Tracer activities that test your knowledge and skills in complex configurations using DHCP, Static NAT, PAT, and double NAT. A Packet Tracer Skills Integration Challenge ties all of these concepts together.

  • Chapter 8, "Network Troubleshooting": The exercises in this chapter begin with wireless LAN concepts, including standards, operation, and security. The exercises then cover wireless configuration for LAN access using a Linksys WRT300N, including a Packet Tracer exercise.

    The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.

  • Appendix, "How to Install SDM": Cisco Router and Security Device Manager (SDM) is used in the security labs for this course. This appendix describes and illustrates how to install SDM on a Cisco router or PC.

About the CD-ROM

The CD-ROM included with this book contains all the Packet Tracer Activity, Packet Tracer Companion, and Packet Tracer Challenge

files that are referenced throughout the book, as indicated by the Packet Tracer Activity, Packet Tracer Companion, and Packet Tracer Challenge icons.

You can find updates to these files on this book's website at http://www.ciscopress.com/title/9781587132018. About the Cisco Press Website for This Book

Cisco Press may provide additional content that you can access by registering your book at the ciscopress.com website. Becoming a member and registering is free, and you then gain access to exclusive deals on other resources from Cisco Press.

To register this book, go to http://www.ciscopress.com/bookstore/register.asp and log into your account, or create a free account if you do not have one already. Then enter this book's ISBN, located on the back cover.

After you register your book, it appears on your Account page under Registered Products, and you can access any online material from there.

© Copyright Pearson Education. All rights reserved.

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Table of Contents

Introduction xx

Chapter 1 Introduction to WANs 1

Providing Integrated Services to the Enterprise 2

Review Question 2

Exercise 1-1: Browsing Through Internet Routing Tables 2

Exercise 1-2: Tracing a Path Through the Internet 4

WAN Technology Concepts 6

Review Question 6

WAN Connection Options 6

Review Questions 7

Chapter Review Vocabulary Exercise: Matching 8

Chapter Review Multiple-Choice Questions 9

Lab 1-1: Challenge Review Lab (1.4.1) 13

Scenario 14

Task 1: Prepare the Network 14

Task 2: Perform Basic Device Configurations 15

Task 3: Configure and Activate Serial and Ethernet Addresses 15

Task 4: Configure STP 15

Task 5: Configure VTP 15

Task 6: Configure VLANs 15

Task 7: Configure RIP Routing 15

Task 8: Configure OSPF Routing 16

Task 9: Configure EIGRP Routing 16

Task 10: Document the Router Configurations 16

Task 11: Clean Up 16

Packet Tracer Exercise: Comprehensive WAN Fundamentals 16

Packet Tracer Skills Integration Challenge 16

Task 1: Configure Static and Default Routing 18

Task 2: Add and Connect the BRANCH Router 19

Task 3: Add and Connect the Switches 19

Task 4: Add and Connect the PCs 19

Task 5: Perform Basic Device Configuration 20

Task 6: Configure OSPF Routing 20

Task 7: Configure STP 21

Task 8: Configure VTP 21

Task 9: Configure Trunking 21

Task 10: Configure VLANs 21

Task 11: Verify End-to-End Connectivity 22

Chapter 2 PPP 23

Serial Point-to-Point Links 24

Review Questions 25

PPP Concepts 25

Vocabulary Exercise: Matching 26

Configuring PPP 27

Review Questions 27

Configuring PPP with Authentication 27

Review Questions 28

Chapter Review: Multiple-Choice Questions 28

Chapter Review Exercise 32

Lab 2-1: Basic PPP Configuration Lab (2.5.1) 33

Scenario 34

Task 1: Prepare the Network 34

Task 2: Perform Basic Router Configuration 34

Task 3: Configure and Activate Serial and Ethernet Addresses 35

Task 4: Configure OSPF on the Routers 35

Task 5: Configure PPP Encapsulation on Serial Interfaces 37

Task 6: Break and Restore PPP Encapsulation 44

Task 7: Configure PPP Authentication 45

Task 8: Intentionally Break and Restore PPP CHAP Authentication 49

Task 9: Document the Router Configurations 51

Task 10: Clean Up 54

Packet Tracer Companion: Basic PPP Configuration (2.5.1) 54

Lab 2-2: Challenge PPP Configuration (2.5.2) 55

Scenario 56

Task 1: Prepare the Network 56

Task 2: Perform Basic Router Configuration 56

Task 3: Configure and Activate Serial and Ethernet Addresses 56

Task 4: Configure OSPF on Routers 57

Task 5: Configure PPP Encapsulation on Serial Interfaces 57

Task 6: Intentionally Break and Restore PPP Encapsulation 57

Task 7: Configure PPP CHAP Authentication 57

Task 8: Intentionally Break and Restore PPP CHAP Authentication 57

Task 9: Document the Router Configurations 57

Task 10: Clean Up 57

Packet Tracer Companion: Challenge PPP Configuration (2.5.2) 57

Lab 2-3: Troubleshooting PPP Configuration (2.5.3) 58

Scenario 59

Task 1: Load Routers with the Supplied Scripts 59

Task 2: Find and Correct Network Errors 64

Task 3: Document the Corrected Network 64

Task 4: Clean Up 64

Packet Tracer Companion: Troubleshooting PPP Configuration (2.5.3) 64

Packet Tracer Exercise 2-1: PPP 64

Packet Tracer Exercise 2-2: PPP Troubleshooting 65

Packet Tracer Skills Integration Challenge 65

Task 1: Configure Static and Default Routing 66

Task 2: Add and Connect a Router 67

Task 3: Design and Document an Addressing Scheme 67

Task 4: Add and Connect the Devices in the Address Space 68

Task 5: Configure Basic Device Settings 68

Task 6: Configure PPP Encapsulation with CHAP Authentication 69

Task 7: Configure OSPF Routing 69

Task 8: Configure VLANs 69

Task 9: Verify Connectivity 70

Chapter 3 Frame Relay 71

Basic Frame Relay Concepts 72

Review Questions 73

Configuring Frame Relay 73

Vocabulary Exercise: Matching Terms 74

Advanced Frame Relay Concepts 74

Fill-in-the-Blank Exercise 75

Configuring Advanced Frame Relay 75

Vocabulary Exercise: Matching Commands 76

Chapter Review Multiple-Choice Questions 78

Lab 3-1: Basic Frame Relay (3.5.1) 82

Scenario 83

Task 1: Prepare the Network 83

Task 2: Perform Basic Router Configuration 84

Task 3: Configure Frame Relay 85

Task 4: Verify the Configuration 90

Task 5: Troubleshoot Frame Relay 94

Task 6: Configure a Frame Relay Subinterface 99

Lab 3-2: Challenge Frame Relay Configuration (3.5.2) 105

Scenario 106

Task 1: Prepare the Network 106

Task 2: Perform Basic Router Configuration 106

Task 3: Configure IP Addresses 106

Task 4: Configure EIGRP on Routers R1 and R2 107

Task 5: Configure Frame Relay PVC Between R1 and R2 107

Task 6: Intentionally Break the PVC, and Then Restore It 107

Task 7: Configure Frame Relay Subinterfaces 107

Task 8: Intentionally Break the PVC, and Then Restore It 107

Task 9: Document the Router Configurations 107

Task 10: Clean Up 107

Lab 3-3: Troubleshooting Frame Relay (3.5.3) 108

Scenario 108

Task 1: Prepare the Network 108

Task 2: Troubleshoot and Repair the Frame Relay Connection Between R1 and

R2 112

Task 3: Document the Router Configurations 112

Task 4: Clean Up 112

Lab 3-4: Frame Relay with Subinterfaces 112

Scenario 114

Task 1: Configure the HQ Router 114

Task 2: Configure Subinterfaces on the HQ Router 114

Task 3: Configure the Serial Interface on the Branch 1 Router 114

Task 4: Configure the Serial Interface on the Branch 2 Router 115

Task 5: Configure the Serial Interface on the Branch 3 Router 115

Task 6: Configure the FastEthernet Interface on the Branch 1 LAN 115

Task 7: Configure the FastEthernet Interface on the Branch 2 LAN 115

Task 8: Configure the FastEthernet Interface on the Branch 3 LAN 115

Task 9: Configure EIGRP 116

Task 10: Verify the Configurations 116

Packet Tracer Companion: Frame Relay Full Mesh 116

Packet Tracer Skills Integration Challenge 116

Task 1: Configure PPP with CHAP Between Devices 118

Task 2: Configure Full-Mesh Frame Relay 119

Task 3: Configure Static and Default Routing 120

Task 4: Configure and Test Inter-VLAN Routing 121

Task 5: Configure VTP and Trunking on the Switches 121

Task 6: Configure VLANs on the Switch 122

Task 7: Configure and Verify VLAN 99 123

Task 8: Configure S1 as Root for All Spanning Trees 123

Task 9: Assign Ports to VLANs 124

Task 10: Test End-to-End Connectivity 124

Chapter 4 Network Security 125

Introduction to Network Security 126

Vocabulary Exercise: Matching 126

Vocabulary Exercise: Completion 127

Securing Cisco Routers 128

Describe Good Password Practices 128

Configuring Router Passwords 128

Secure Router Network Services 129

Vulnerable Router Services Exercise 130

Securing Routing Protocols: Completion 130

Using Cisco Security Device Manager 131

Preparing a Router for SDM 131

Secure Router Management 132

Managing Cisco IOS Images: Identify Commands 132

Managing Cisco IOS Images: Short Answer 132

Password-Recovery Exercise 133

Lab 4-1: Basic Security Configuration (4.6.1) 135

Scenario 135

Task 1: Prepare the Network 136

Task 2: Perform Basic Router Configurations 137

Task 3: Secure the Router from Unauthorized Access 137

Task 4: Secure Access to the Network 140

Task 5: Logging Activity with SNMP (Simple Network Management Protocol) 143

Task 6: Disabling Unused Cisco Network Services 144

Task 7: Managing Cisco IOS and Configuration Files 150

Task 8: Using SDM to Secure a Router 159

Task 9: Document the Router Configurations 165

Task 10: Clean Up 165

Lab 4-2: Challenge Security Configuration (4.6.2) 165

Scenario 166

Task 1: Prepare the Network 167

Task 2: Perform Basic Router Configurations 167

Task 3: Secure Access to Routers 168

Task 4: Secure Access to the Network 168

Task 5: Logging Activity with SNMP (Simple Network Management Protocol) 168

Task 6: Disabling Unused Cisco Network Services 168

Task 7: Managing Cisco IOS and Configuration Files 169

Task 8: Using SDM to Secure R2 169

Task 9: Document the Router Configurations 169

Task 10: Clean Up 169

Lab 4-3: Troubleshooting Security Configuration (4.6.3) 170

Scenario 170

Task 1: Load Routers with the Supplied Scripts 171

Task 2: Find and Correct All Network Errors 179

Task 3: Document the Corrected Network 180

Task 4: Clean Up 180

Packet Tracer Skills Integration Challenge 180

Task 1: Configure Routing 181

Task 2: Configure OSPF Authentication 182

Task 3: Upgrade the Cisco IOS Image 182

Chapter 5 ACLs 183

Using ACLs to Secure Networks 184

Multiple-Choice Questions 185

Configuring Standard ACLs: Command Exercise 187

Configuring Extended ACLs 189

Vocabulary Exercise: Matching Terms 189

Extended ACL Command Exercise 190

Configuring Complex ACLs 191

Review Questions 191

Vocabulary Exercise: Matching Terms 192

Lab 5-1: Basic Access Control Lists (5.5.1) 193

Scenario 194

Task 1: Prepare the Network 194

Task 2: Perform Basic Router Configurations 194

Task 3: Configure a Standard ACL 195

Task 4: Configure an Extended ACL 197

Task 5: Control Access to the VTY Lines with a Standard ACL 198

Task 6: Troubleshoot ACLs 200

Task 7: Document the Router Configurations 201

Task 8: Clean Up 201

Packet Tracer Companion: Basic Access Control Lists (5.5.1) 201

Lab 5-2: Access Control Lists Challenge (5.5.2) 202

Task 1: Prepare the Network 203

Task 2: Perform Basic Router Configurations 203

Task 3: Configure Standard ACLs 203

Task 4: Configure Extended ACLs 203

Task 5: Verify an ACL 204

Task 6: Document the Router Configurations 204

Task 7: Clean Up 205

Packet Tracer Companion: Challenge Access Control Lists (5.5.2) 205

Lab 5-3: Troubleshooting Access Control Lists (5.5.3) 205

Scenario 206

Task 1: Load Routers with the Supplied Scripts 206

Task 2: Find and Correct Network Errors 206

Task 3: Document the Corrected Network 206

Task 4: Clean Up 206

Packet Tracer Exercise 5.1: Named Access Control Lists 207

Packet Tracer Exercise 5.2: Access Control Lists 207

Packet Tracer Skills Integration Challenge 207

Introduction 208

Task 1: Configure PPP with CHAP Authentication 208

Task 2: Configure Default Routing 209

Task 3: Configure OSPF Routing 209

Task 4: Implement Multiple ACL Security Policies 210

Chapter 6 Teleworker Services 213

Business Requirements for Teleworker Services 214

Review Questions 214

Broadband Services: Fill-in-the-Blank Exercise 215

VPN Technology 216

Vocabulary Exercise: Matching 216

Multiple-Choice Questions 217

Packet Tracer Exercise 6-1: DSL/Cable Configuration 219

Packet Tracer Exercise 6-2: Wireless Configuration 219

Packet Tracer Skills Integration Challenge 219

Task 1: Apply Basic Router Configurations 221

Task 2: Configure Dynamic and Default Routing 221

Task 3: Establish Teleworker Services 221

Task 4: Test Connectivity Before ACL Configuration 222

Task 5: Apply ACL Policies 222

Task 6: Test Connectivity After ACL Configuration 222

Chapter 7 IP Addressing Services 223

DHCP 224

Vocabulary Exercise: Matching 224

Scaling Networks with NAT 225

Fill-in-the-Blank Exercise 225

Vocabulary Exercise: Matching 226

Reasons for Using IPv6 226

Multiple-Choice Questions 227

Concept Questions 230

Lab 7-1: Basic DHCP and NAT Configuration (7.4.1) 231

Scenario 232

Task 1: Prepare the Network 232

Task 2: Perform Basic Router Configurations 232

Task 3: Configure PC1 and PC2 to Receive an IP Address Through DHCP 232

Task 4: Configure a Cisco IOS DHCP Server 234

Task 5: Configure Static and Default Routing 237

Task 6: Configure Static NAT 237

Task 7: Configure Dynamic NAT with a Pool of Addresses 238

Task 8: Configure NAT Overload 240

Task 9: Document the Network 241

Task 10: Clean Up 241

Packet Tracer Companion: Basic DHCP and NAT Configuration (7.4.1) 241

Lab 7-2: Challenge DHCP and NAT Configuration (7.4.2) 242

Scenario 243

Task 1: Prepare the Network 243

Task 2: Perform Basic Router Configurations 243

Task 3: Configure a Cisco IOS DHCP Server 243

Task 4: Configure Static and Default Routing 244

Task 5: Configure Static NAT 245

Task 6: Configure Dynamic NAT with a Pool of Addresses 245

Task 7: Document the Network 246

Task 8: Clean Up 246

Packet Tracer Companion: Challenge DHCP and NAT Configuration (7.4.2) 246

Lab 7-3: Troubleshooting DHCP and NAT (7.4.3) 246

Scenario 247

Task 1: Prepare the Network 247

Task 2: Find and Correct Network Errors 250

Task 3: Document the Router Configurations 251

Task 4: Clean Up 251

Packet Tracer Companion: Troubleshooting DHCP and NAT Configuration (7.4.3) 251

Lab 7-4: IPv6 Basic Configuration Using an Adtran 251

Scenario 251

Task 1: Upgrade IOS to Support IPv6 252

Task 2: Enter Basic Configuration for Each Device 252

Task 3: Enable IPv6 Forwarding 253

Task 4: Configure IPv6 Addresses 254

Task 5: Create and Address Loopbacks 255

Task 6: Configure RIPng Routing 256

Task 7: Test Connectivity 258

Lab 7-5: IPv6 Basic Configuration Using a Frame Switch 259

Scenario 259

Task 1: Upgrade IOS to Support IPv6 259

Task 2: Enter the Basic Configuration for Each Device 260

Task 3: Enable IPv6 Forwarding 261

Task 4: Configure IPv6 Addresses 262

Task 5: Create and Address Loopbacks 263

Task 6: Configure RIPng Routing 265

Task 7: Test Connectivity 269

Task 8: Advertise the Default Route 269

Packet Tracer Exercise 7-1: DHCP 270

Packet Tracer Exercise 7-2: DHCP Troubleshooting 270

Packet Tracer Exercise 7-3: Configuring NAT, PAT, and Static NAT 270

Packet Tracer Exercise 7-4: Double NAT with DHCP 270

Packet Tracer Skills Integration Challenge 270

Task 1: Apply Basic Configurations 272

Task 2: Configure PPP Encapsulation with CHAP 272

Task 3: Configure Dynamic and Default Routing 273

Task 4: Configure Routers Using DHCP 273

Task 5: Verify That PCs Are Automatically Configured with Addressing Details 274

Task 6: Configure a DNS Server with DNS Entries 274

Task 7: Configure an ACL to Permit NAT 274

Task 8: Configure Static NAT 275

Task 9: Configure Dynamic NAT with Overload 275

Task 10: Configure the ISP Router with a Static Route 275

Task 11: Test Connectivity 275

Chapter 8 Network Troubleshooting 277

Documenting Your Network 278

Concept Questions 278

Troubleshooting Methodologies and Tools 279

Multiple-Choice Questions 280

WAN Communications 281

Fill-in-the-Blank Exercise 282

Network Troubleshooting 282

Vocabulary Exercise: Define 283

Activity 8-1: Troubleshooting Role Play (8.3.7) 284

Scenario 284

Task 1: Build the Network 285

Task 2: Test the Network 285

Task 3: Break the Network 285

Task 4: Troubleshoot the Problem 285

Task 5: Gather Symptoms from Suspect Devices 285

Task 6: Correct the Problem 285

Task 7: Document the Problem and Solution 285

Task 8: Reverse the Roles and Start Over 285

Task 9: Clean Up 285

Lab 8-1: Troubleshooting Enterprise Networks 1 (8.5.1) 286

Scenario 287

Task 1: Load Routers with the Supplied Scripts 288

Task 2: Find and Correct All Network Errors 300

Task 3: Verify That Requirements Are Fully Met 300

Task 4: Document the Corrected Network 300

Task 5: Clean Up 300

Packet Tracer Companion: Troubleshooting Enterprise Networks 1 (8.5.1) 300

Lab 8-2: Troubleshooting Enterprise Networks 2 (8.5.2) 301

Scenario 302

Task 1: Load Routers with the Supplied Scripts 303

Task 2: Find and Correct All Network Errors 314

Task 3: Verify That Requirements Are Fully Met 314

Task 4: Document the Corrected Network 314

Task 5: Clean Up 314

Packet Tracer Companion: Troubleshooting Enterprise Networks 2 (8.5.2) 314

Lab 8-3: Troubleshooting Enterprise Networks 3 (8.5.3) 315

Scenario 316

Task 1: Load Routers with the Supplied Scripts 317

Task 2: Find and Correct All Network Errors 328

Task 3: Verify That Requirements Are Fully Met 328

Task 4: Document the Corrected Network 328

Task 5: Clean Up 328

Packet Tracer Companion: Troubleshooting Enterprise Networks 3 (8.5.3) 328

Packet Tracer Exercise 8-1: Comprehensive Network Troubleshooting 329

Packet Tracer Skills Integration Challenge 329

Task 1: Configure Frame Relay in a Hub-and-Spoke Topology 331

Task 2: Configure PPP with CHAP and PAP Authentication 332

Task 3: Configure Static and Dynamic NAT on HQ 332

Task 4: Configure Static and Default Routing 332

Task 5: Configure Inter-VLAN Routing 333

Task 6: Configure and Optimize EIGRP Routing 333

Task 7: Configure VTP, Trunking, the VLAN Interface, and VLANs 333

Task 8: Assign VLANs and Configure Port Security 334

Task 9: Configure STP 334

Task 10: Configure DHCP 334

Task 11: Configure a Firewall ACL 335

Task 12: Configure Wireless Connectivity 335

Task 13: Network Troubleshooting 336

Appendix How to Install SDM 337

Step 1: Preparation 337

Step 2: Prepare the Router for SDM 337

Step 3: Configure Addressing 338

Step 4: Extract SDM on the Host 338

Step 5: Install SDM on the PC 338

Step 6: Run SDM from the PC 339

Step 7: Install SDM to the Router 341

Step 8: Run SDM from the Router 343

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Preface

Introduction

The Cisco Networking Academy is a comprehensive e-learning program that provides students with Internet technology skills. A Networking Academy delivers web-based content, online assessment, student performance tracking, and hands-on labs to prepare students for industry-standard certifications. The CCNA curriculum includes four courses oriented around the topics on the Cisco Certified Network Associate (CCNA) certification.

Accessing the WAN, CCNA Exploration Labs and Study Guide is a supplement to your classroom and laboratory experience with the Cisco Networking Academy. To succeed on the exam and achieve your CCNA certification, you should do everything in your power to arm yourself with a variety of tools and training materials to support your learning efforts. This Labs and Study Guide is just such a collection of tools. Used to its fullest extent, it will help you acquire the knowledge and practice the skills associated with the content area of the CCNA Exploration Accessing the WAN course. Specifically, this book helps you work on these main areas:

  • WAN technology concepts
  • PPP concepts and configuration
  • Frame Relay concepts and configuration
  • Network security threats and mitigation techniques
  • Access control list operation and configuration
  • Broadband services and technologies
  • Network Address Translation concepts and configuration
  • DHCP operation and configuration
  • IPv6 concepts
  • Troubleshooting methodologies and tools

Labs and Study Guides similar to this one are also available for the other three courses: Network Fundamentals, CCNA Exploration Labs and Study Guide; Routing Protocols and Concepts, CCNA Exploration Labs and Study Guide; and LAN Switching and Wireless, CCNA Exploration Labs and Study Guide.

Audience for This Book

This book's main audience is anyone taking the CCNA Exploration Accessing the WAN course of the Cisco Networking Academy curriculum. Many Academies use this book as a required tool in the course, and other Academies recommend the Labs and Study Guides as an additional source of study and practice materials.

Goals and Methods

The most important goal of this book is to help you pass the CCNA exam (640-802). Passing this foundation exam means that you not only have the required knowledge of the technologies covered by the exam, but that you can plan, design, implement, operate, and troubleshoot these technologies. In other words, these exams are rigorously application-based. You can view the exam topics any time at http://www.cisco.com/go/certifications. The topics are divided into eight categories:

  • Describe how a network works
  • Configure, verify, and troubleshoot a switch with VLANs and interswitch communications
  • -Implement an IP addressing scheme and IP Services to meet network requirements in a
  • medium-size Enterprise branch office network
  • Configure, verify, and troubleshoot basic router operation and routing on Cisco devices
  • Explain and select the appropriate administrative tasks required for a WLAN
  • Identify security threats to a network, and describe general methods to mitigate those threats
  • Implement, verify, and troubleshoot NAT and ACLs in a medium-size Enterprise branch office
  • network
  • Implement and verify WAN links

The Accessing the WAN course focuses on the third, fifth, sixth, seventh, and eighth topics.

The Study Guide portion of each chapter offers exercises that help you learn the Accessing the WAN concepts as well as the configurations crucial to your success as a CCNA exam candidate. Each chapter is slightly different and includes some or all of the following types of exercises:

  • Vocabulary matching and completion
  • Skill-building activities and scenarios
  • Configuration scenarios
  • Concept questions
  • Internet research

In the configuration chapters, you'll find many Packet Tracer Activities that work with the Cisco Packet Tracer tool. Packet Tracer allows you to create networks, visualize how packets flow in the network, and use basic testing tools to determine whether the network would work. When you see this icon, you can use Packet Tracer with the listed file to perform a task suggested in this book. The activity files are available on this book's CD-ROM; Packet Tracer software, however, is available through the Academy Connection website. Ask your instructor for access to Packet Tracer.

The Labs and Activities portion of each chapter includes all the online Curriculum Labs, some additional supplemental labs that you can perform with Packet Tracer, and a Packet Tracer Skills Integration Challenge Activity. The Curriculum Labs are divided into three categories:

  • Basic: The Basic Labs are procedural in nature and assume that you have no experience configuring the technologies that are the topic of the lab.
  • Challenge: The Challenge Labs cover implementations and assume that you have a firm-enough grasp on the technologies to "go it alone." These labs often give you only a general requirement that you must implement fully without the details of each small step. In other words, you must use the knowledge and skills you gained in the chapter text, activities, and Basic Lab to successfully complete the Challenge Lab. Avoid the temptation to work through the Challenge Lab by flipping back through the Basic Lab when you are unsure of a command. Do not try to short-circuit your CCNA training. You need a deep understanding of CCNA knowledge and skills to ultimately be successful on the CCNA exam.
  • Troubleshooting: The Troubleshooting Labs ask you to fix a broken network. These labs include corrupted scripts that you purposely load onto the routers. Then you use troubleshooting techniques to isolate problems and implement the solution. By the end of the lab, you should have a functional network with full end-to-end connectivity.

Most of the Hands-on Labs include Packet Tracer Companion Activities, in which you can use Packet Tracer to complete a simulation of the lab.

Each chapter ends with a Packet Tracer Skills Integration Challenge. These activities require you to pull together several skills learned from the chapter—as well as previous chapters and courses—to successfully complete one comprehensive exercise.

A Word About Packet Tracer

Packet Tracer is a self-paced, visual, interactive teaching and learning tool developed by Cisco. Lab activities are an important part of networking education. However, lab equipment can be a scarce resource. Packet Tracer provides a visual simulation of equipment and network processes to offset the challenge of limited equipment. Students can spend as much time as they like completing standard lab exercises through Packet Tracer, and they have the option to work from home. Although Packet Tracer is not a substitute for real equipment, it allows students to practice using a command-line interface. This "e-doing" capability is a fundamental component of learning how to configure routers and switches from the command line.

Packet Tracer version 4.x is available only to Cisco Networking Academies through the Academy Connection website.

How This Book Is Organized

Because the content of this book and the online curriculum is sequential, you should work through this book in order, beginning with Chapter 1.

The book covers the major topic headings in the same sequence as the online curriculum for the CCNA Exploration Accessing the WAN course. This book has eight chapters with the same numbers and names as the online course chapters.

If necessary, a chapter uses a single topology for the exercises in the Study Guide portion. This single topology allows for better continuity and easier understanding of switching commands, operations, and outputs. However, the topology is different from the one used in the online curriculum and the Companion Guide. A different topology affords you the opportunity to practice your knowledge and skills without just simply recording the information you find in the text.

  • Chapter 1, "Introduction to WANs": The exercises in the Study Guide portion of this chapter focus on LAN design concepts, including vocabulary and the three-layer hierarchical model. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Chapter 2, "PPP": The exercises in the first part of this chapter help you understand basic Ethernet and switching concepts, including building the MAC address table and collision and broadcast domains. Then the Packet Tracer exercises cover, in detail, how to configure a switch, including basic switch management and configuring switch security. The Lab portion of the chapter includes two Basic Labs, a Challenge Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Chapter 3, "Frame Relay": The exercises in the first portion of this chapter focus on the concepts of VLANs, including benefits of VLANs and types of VLANs. The exercises then cover VLAN trunking concepts before moving into a section devoted to a VLAN and trunk configuration Packet Tracer exercise. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Chapter 4, "Network Security": The exercises in this chapter focus on key network security threats, tools, and mitigation techniques for Cisco routers. Configuration practice is provided for router security tasks. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Chapter 5, "ACLs": Exercises in this chapter focus on the concept of redundant LAN topologies, using STP and its variants to stop loops, and the commands to manipulate root bridge elections. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Chapter 6, "Teleworker Services": This short chapter focuses on how to configure inter-VLAN routing, including two Packet Tracer exercises. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Chapter 7, "IP Addressing Services": The exercises in this chapter include several matching term activities, multiple choice questions, fill-in-the-blank exercises, and concept questions that test your knowledge on DHCP and scaling IP addresses with the use of NAT and PAT. It also tests your knowledge of IPv6 and routing using the next generation of RIP. The Lab portion of this chapter includes all the online curriculum labs for DHCP and NAT as well as four additional Packet Tracer activities that test your knowledge and skills in complex configurations using DHCP, Static NAT, PAT, and double NAT. A Packet Tracer Skills Integration Challenge ties all of these concepts together.
  • Chapter 8, "Network Troubleshooting": The exercises in this chapter begin with wireless LAN concepts, including standards, operation, and security. The exercises then cover wireless configuration for LAN access using a Linksys WRT300N, including a Packet Tracer exercise. The Lab portion of the chapter includes a Basic Lab, a Challenge Lab, a Troubleshooting Lab, and a Packet Tracer Skills Integration Challenge activity.
  • Appendix, "How to Install SDM": Cisco Router and Security Device Manager (SDM) is used in the security labs for this course. This appendix describes and illustrates how to install SDM on a Cisco router or PC.

About the CD-ROM

The CD-ROM included with this book contains all the Packet Tracer Activity, Packet Tracer Companion, and Packet Tracer Challenge files that are referenced throughout the book, as indicated by the Packet Tracer Activity, Packet Tracer Companion, and Packet Tracer Challenge icons.

You can find updates to these files on this book's website at http://www.ciscopress.com/title/9781587132018.

About the Cisco Press Website for This Book

Cisco Press may provide additional content that you can access by registering your book at the ciscopress.com website. Becoming a member and registering is free, and you then gain access to exclusive deals on other resources from Cisco Press.

To register this book, go to http://www.ciscopress.com/bookstore/register.asp and log into your account, or create a free account if you do not have one already. Then enter this book's ISBN, located on the back cover.

After you register your book, it appears on your Account page under Registered Products, and you can access any online material from there.

© Copyright Pearson Education. All rights reserved.

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