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
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(R) Networking Academy(R) CCNA(R) 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(R), 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(R). Books in this series support and complement the Cisco Networking Academy curriculum.
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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