Lecture Notes for CCNA 2 v7 Labs and Study Guide
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Switching, Routing, and
Wireless Essentials Labs and
Study Guide (CCNAv7)
Instructor’s Answer Key
Allan Johnson
Wireless Essentials Labs and
Study Guide (CCNAv7)
Instructor’s Answer Key
Allan Johnson
iv Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
About the Contributing Author
Allan Johnson entered the academic world in 1999, after 10 years as a business owner/operator,
to dedicate his efforts to his passion for teaching. He holds both an M.B.A. and an M.Ed. in
training and development. He taught CCNA courses at the high school level for 7 years and
has taught both CCNA and CCNP courses at Del Mar College in Corpus Christi, Texas. In
2003, Allan began to commit much of his time and energy to the CCNA Instructional Support
Team, providing services to Networking Academy instructors worldwide and creating training
materials. He now works full time for Cisco Networking Academy as Curriculum Lead.
About the Contributing Author
Allan Johnson entered the academic world in 1999, after 10 years as a business owner/operator,
to dedicate his efforts to his passion for teaching. He holds both an M.B.A. and an M.Ed. in
training and development. He taught CCNA courses at the high school level for 7 years and
has taught both CCNA and CCNP courses at Del Mar College in Corpus Christi, Texas. In
2003, Allan began to commit much of his time and energy to the CCNA Instructional Support
Team, providing services to Networking Academy instructors worldwide and creating training
materials. He now works full time for Cisco Networking Academy as Curriculum Lead.
v
About the Technical Reviewer
Dave Holzinger has been a curriculum developer, project manager, author, and technical editor
for Cisco Networking Academy in Phoenix since 2001. Dave works on the team that develops
Cisco Networking Academy’s online curricula, including CCNA, CCNP, and IT Essentials. He
has been working with computer hardware and software since 1981. Dave has certifications
from Cisco, BICSI, and CompTIA.
About the Technical Reviewer
Dave Holzinger has been a curriculum developer, project manager, author, and technical editor
for Cisco Networking Academy in Phoenix since 2001. Dave works on the team that develops
Cisco Networking Academy’s online curricula, including CCNA, CCNP, and IT Essentials. He
has been working with computer hardware and software since 1981. Dave has certifications
from Cisco, BICSI, and CompTIA.
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vi Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Contents at a Glance
Introduction xxx
Chapter 1 Basic Device Configuration 1
Chapter 2 Switching Concepts 69
Chapter 3 VLANs 77
Chapter 4 Inter-VLAN Routing 161
Chapter 5 STP Concepts 251
Chapter 6 EtherChannel 265
Chapter 7 DHCPv4 311
Chapter 8 SLAAC and DHCPv6 349
Chapter 9 FHRP Concepts 379
Chapter 10 LAN Security Concepts 393
Chapter 11 Switch Security Configuration 405
Chapter 12 WLAN Concepts 439
Chapter 13 WLAN Configuration 455
Chapter 14 Routing Concepts 503
Chapter 15 IP Static Routing 535
Chapter 16 Troubleshoot Static and Default Routes 571
Contents at a Glance
Introduction xxx
Chapter 1 Basic Device Configuration 1
Chapter 2 Switching Concepts 69
Chapter 3 VLANs 77
Chapter 4 Inter-VLAN Routing 161
Chapter 5 STP Concepts 251
Chapter 6 EtherChannel 265
Chapter 7 DHCPv4 311
Chapter 8 SLAAC and DHCPv6 349
Chapter 9 FHRP Concepts 379
Chapter 10 LAN Security Concepts 393
Chapter 11 Switch Security Configuration 405
Chapter 12 WLAN Concepts 439
Chapter 13 WLAN Configuration 455
Chapter 14 Routing Concepts 503
Chapter 15 IP Static Routing 535
Chapter 16 Troubleshoot Static and Default Routes 571
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Contents
Introduction xxx
Chapter 1 Basic Device Configuration 1
Study Guide 2
Configure a Switch with Initial Settings 2
Switch Boot Sequence 2
The boot system Command 2
Switch LED Indicators 3
Recovering from a System Crash 4
Switch Management Access 5
Switch SVI Configuration 6
Configure Switch Ports 6
Duplex Communication 6
Configure Switch Ports at the Physical Layer 6
Auto-MDIX 7
Switch Verification Commands 7
Network Access Layer Issues 8
Troubleshooting Network Access Layer Issues 9
Secure Remote Access 10
Telnet Operation 10
SSH Operation 10
Verify That the Switch Supports SSH 10
Configure SSH 10
Verify That SSH Is Operational 11
Packet Tracer Exercise 1-1: Configure Secure Access 12
Basic Router Configuration 13
Configure Basic Router Settings 13
Dual Stack Topology 14
Configure Router Interfaces 14
IPv4 Loopback Interfaces 15
Packet Tracer Exercise 1-2: Basic Router Configuration 15
Verify Directly Connected Networks 16
Verify Interface Status 16
Verify IPv6 Link-Local and Multicast Addresses 16
Verify Interface Configuration 17
Verify Routes 17
Filter Show Command Output 18
Command History Feature 19
Check Your Understanding—Verify Directly Connected Networks 20
Labs and Activities 21
Command Reference 21
Contents vii
Introduction xxx
Chapter 1 Basic Device Configuration 1
Study Guide 2
Configure a Switch with Initial Settings 2
Switch Boot Sequence 2
The boot system Command 2
Switch LED Indicators 3
Recovering from a System Crash 4
Switch Management Access 5
Switch SVI Configuration 6
Configure Switch Ports 6
Duplex Communication 6
Configure Switch Ports at the Physical Layer 6
Auto-MDIX 7
Switch Verification Commands 7
Network Access Layer Issues 8
Troubleshooting Network Access Layer Issues 9
Secure Remote Access 10
Telnet Operation 10
SSH Operation 10
Verify That the Switch Supports SSH 10
Configure SSH 10
Verify That SSH Is Operational 11
Packet Tracer Exercise 1-1: Configure Secure Access 12
Basic Router Configuration 13
Configure Basic Router Settings 13
Dual Stack Topology 14
Configure Router Interfaces 14
IPv4 Loopback Interfaces 15
Packet Tracer Exercise 1-2: Basic Router Configuration 15
Verify Directly Connected Networks 16
Verify Interface Status 16
Verify IPv6 Link-Local and Multicast Addresses 16
Verify Interface Configuration 17
Verify Routes 17
Filter Show Command Output 18
Command History Feature 19
Check Your Understanding—Verify Directly Connected Networks 20
Labs and Activities 21
Command Reference 21
Contents vii
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viii Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
1.1.7 Lab—Basic Switch Configuration (Instructor Version) 23
Topology 23
Addressing Table 23
Objectives 23
Background / Scenario 24
Required Resources 24
Part 1: Cable the Network and Verify the Default Switch
Configuration 25
Part 2: Configure Basic Network Device Settings 29
Part 3: Verify and Test Network Connectivity 31
Part 4: Manage the MAC Address Table 34
Reflection Questions 37
Appendix A: Initialize and Reload a Switch 37
Device Configs 38
Switch S1 38
1.3.6 Packet Tracer—Configure SSH (Instructor Version) 42
Addressing Table 42
Objectives 42
Background 42
Instructions 42
Part 1: Secure Passwords 42
Part 2: Encrypt Communications 42
1.4.7 Packet Tracer—Configure Router Interfaces (Instructor Version) 44
Addressing Table 44
Objectives 44
Background 44
Instructions 44
Part 1: Configure IPv4 Addressing and Verify Connectivity 44
Part 2: Configure IPv6 Addressing and Verify Connectivity 45
Final Configuration 45
Router R1 45
Router R2 45
1.5.10 Packet Tracer—Verify Directly Connected Networks
(Instructor Version) 46
Addressing Table 46
Objectives 46
Background 46
Instructions 46
Part 1: Verify IPv4 Directly Connected Networks 46
Part 2: Verify IPv6 Directly Connected Networks 48
Final Configuration 49
Router R1 49
Router R2 49
1.1.7 Lab—Basic Switch Configuration (Instructor Version) 23
Topology 23
Addressing Table 23
Objectives 23
Background / Scenario 24
Required Resources 24
Part 1: Cable the Network and Verify the Default Switch
Configuration 25
Part 2: Configure Basic Network Device Settings 29
Part 3: Verify and Test Network Connectivity 31
Part 4: Manage the MAC Address Table 34
Reflection Questions 37
Appendix A: Initialize and Reload a Switch 37
Device Configs 38
Switch S1 38
1.3.6 Packet Tracer—Configure SSH (Instructor Version) 42
Addressing Table 42
Objectives 42
Background 42
Instructions 42
Part 1: Secure Passwords 42
Part 2: Encrypt Communications 42
1.4.7 Packet Tracer—Configure Router Interfaces (Instructor Version) 44
Addressing Table 44
Objectives 44
Background 44
Instructions 44
Part 1: Configure IPv4 Addressing and Verify Connectivity 44
Part 2: Configure IPv6 Addressing and Verify Connectivity 45
Final Configuration 45
Router R1 45
Router R2 45
1.5.10 Packet Tracer—Verify Directly Connected Networks
(Instructor Version) 46
Addressing Table 46
Objectives 46
Background 46
Instructions 46
Part 1: Verify IPv4 Directly Connected Networks 46
Part 2: Verify IPv6 Directly Connected Networks 48
Final Configuration 49
Router R1 49
Router R2 49
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1.6.1 Packet Tracer—Implement a Small Network (Instructor Version) 50
Addressing Table 50
Objectives 50
Instructions 50
Part 1: Create the Network Topology 50
Part 2: Configure Devices 51
Device Configurations 52
Router RTA 52
Switch SW1 53
Switch SW2 53
1.6.2 Lab—Configure Basic Router Settings (Instructor Version) 54
Topology 54
Addressing Table 54
Objectives 54
Background / Scenario 55
Required Resources 55
Instructions 56
Part 1: Set Up the Topology and Initialize Devices 56
Part 2: Configure Devices and Verify Connectivity 56
Part 3: Display Router Information 59
Reflection Questions 65
Router Interface Summary Table 66
Device Configs 66
Router R1 66
Chapter 2 Switching Concepts 69
Study Guide 70
Frame Forwarding 70
Switching in Networking 70
The Switch MAC Address Table 70
The Switch Learn and Forward Method 70
Switching Forwarding Methods 71
Store-and-Forward Switching 71
Cut-Through Switching 71
Activity—Build the MAC Address Table 72
Switching Domains 73
Collision Domains 73
Broadcast Domains 74
Alleviate Network Congestion 74
Check Your Understanding—Switching Domains 75
Labs and Activities 76
Contents ix
Addressing Table 50
Objectives 50
Instructions 50
Part 1: Create the Network Topology 50
Part 2: Configure Devices 51
Device Configurations 52
Router RTA 52
Switch SW1 53
Switch SW2 53
1.6.2 Lab—Configure Basic Router Settings (Instructor Version) 54
Topology 54
Addressing Table 54
Objectives 54
Background / Scenario 55
Required Resources 55
Instructions 56
Part 1: Set Up the Topology and Initialize Devices 56
Part 2: Configure Devices and Verify Connectivity 56
Part 3: Display Router Information 59
Reflection Questions 65
Router Interface Summary Table 66
Device Configs 66
Router R1 66
Chapter 2 Switching Concepts 69
Study Guide 70
Frame Forwarding 70
Switching in Networking 70
The Switch MAC Address Table 70
The Switch Learn and Forward Method 70
Switching Forwarding Methods 71
Store-and-Forward Switching 71
Cut-Through Switching 71
Activity—Build the MAC Address Table 72
Switching Domains 73
Collision Domains 73
Broadcast Domains 74
Alleviate Network Congestion 74
Check Your Understanding—Switching Domains 75
Labs and Activities 76
Contents ix
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x Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Chapter 3 VLANs 77
Study Guide 78
Overview of VLANs 78
VLAN Definitions 78
Benefits of VLAN Design 78
Types of VLANs 78
Check Your Understanding—Overview of VLANs 79
VLANs in a Multi-Switched Environment 80
Defining VLAN Trunks 80
Network Without VLANs 80
Network with VLANs 80
VLAN Identification with a Tag 81
Native VLANs and 802.1Q Tagging 81
Voice VLAN Tagging 82
Check Your Understanding—VLANs in a Multi-Switched Environment 83
VLAN Configuration 85
VLAN Ranges on Catalyst Switches 85
VLAN Creation and Port Assignment Exercise 85
Packet Tracer 3-1: VLAN Creation and Port Assignment 86
Requirements 86
Verify VLAN Information 87
Modify VLANs and Port Assignments 88
VLAN Trunks 88
Trunk Configuration Commands 88
Packet Tracer Exercise 3-2: VLAN and Trunk Configuration 89
Reset the Trunk to the Default State 90
Dynamic Trunking Protocol 90
Introduction to DTP 90
Negotiated Interface Modes 90
Results of a DTP Configuration 91
Verify DTP Mode 92
Check Your Understanding—Dynamic Trunking Protocol 93
Labs and Activities 94
Command Reference 94
3.1.4 Packet Tracer—Who Hears the Broadcast? (Instructor Version) 95
Objectives 95
Scenario 95
Instructions 95
Reflection Questions 96
3.2.8 Packet Tracer—Investigate a VLAN Implementation
(Instructor Version) 97
Addressing Table 97
Chapter 3 VLANs 77
Study Guide 78
Overview of VLANs 78
VLAN Definitions 78
Benefits of VLAN Design 78
Types of VLANs 78
Check Your Understanding—Overview of VLANs 79
VLANs in a Multi-Switched Environment 80
Defining VLAN Trunks 80
Network Without VLANs 80
Network with VLANs 80
VLAN Identification with a Tag 81
Native VLANs and 802.1Q Tagging 81
Voice VLAN Tagging 82
Check Your Understanding—VLANs in a Multi-Switched Environment 83
VLAN Configuration 85
VLAN Ranges on Catalyst Switches 85
VLAN Creation and Port Assignment Exercise 85
Packet Tracer 3-1: VLAN Creation and Port Assignment 86
Requirements 86
Verify VLAN Information 87
Modify VLANs and Port Assignments 88
VLAN Trunks 88
Trunk Configuration Commands 88
Packet Tracer Exercise 3-2: VLAN and Trunk Configuration 89
Reset the Trunk to the Default State 90
Dynamic Trunking Protocol 90
Introduction to DTP 90
Negotiated Interface Modes 90
Results of a DTP Configuration 91
Verify DTP Mode 92
Check Your Understanding—Dynamic Trunking Protocol 93
Labs and Activities 94
Command Reference 94
3.1.4 Packet Tracer—Who Hears the Broadcast? (Instructor Version) 95
Objectives 95
Scenario 95
Instructions 95
Reflection Questions 96
3.2.8 Packet Tracer—Investigate a VLAN Implementation
(Instructor Version) 97
Addressing Table 97
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Objectives 97
Background 97
Instructions 97
Part 1: Observe Broadcast Traffic in a VLAN Implementation 97
Part 2: Observe Broadcast Traffic without VLANs 99
Reflection Questions 99
3.3.12 Packet Tracer—VLAN Configuration (Instructor Version) 101
Addressing Table 101
Objectives 101
Background 101
Part 1: View the Default VLAN Configuration 101
Part 2: Configure VLANs 102
Part 3: Assign VLANs to Ports 103
Answer Scripts 105
Switch S1 105
Switch S2 105
Switch S3 105
3.4.5 Packet Tracer—Configure Trunks (Instructor Version) 107
Addressing Table 107
Objectives 107
Background 107
Instructions 107
Part 1: Verify VLANs 107
Part 2: Configure Trunks 108
Answer Scripts 109
Switch S1 109
Switch S2 109
Switch S3 109
3.4.6 Lab—Configure VLANs and Trunking (Instructor Version) 110
Topology 110
Addressing Table 110
Objectives 110
Background / Scenario 110
Required Resources 111
Instructions 111
Part 1: Build the Network and Configure Basic Device Settings 111
Part 2: Create VLANs and Assign Switch Ports 113
Part 3: Maintain VLAN Port Assignments and the VLAN Database 116
Part 4: Configure an 802.1Q Trunk Between the Switches 120
Part 5: Delete the VLAN Database 124
Reflection Questions 125
Device Configs - Final 125
Contents xi
Background 97
Instructions 97
Part 1: Observe Broadcast Traffic in a VLAN Implementation 97
Part 2: Observe Broadcast Traffic without VLANs 99
Reflection Questions 99
3.3.12 Packet Tracer—VLAN Configuration (Instructor Version) 101
Addressing Table 101
Objectives 101
Background 101
Part 1: View the Default VLAN Configuration 101
Part 2: Configure VLANs 102
Part 3: Assign VLANs to Ports 103
Answer Scripts 105
Switch S1 105
Switch S2 105
Switch S3 105
3.4.5 Packet Tracer—Configure Trunks (Instructor Version) 107
Addressing Table 107
Objectives 107
Background 107
Instructions 107
Part 1: Verify VLANs 107
Part 2: Configure Trunks 108
Answer Scripts 109
Switch S1 109
Switch S2 109
Switch S3 109
3.4.6 Lab—Configure VLANs and Trunking (Instructor Version) 110
Topology 110
Addressing Table 110
Objectives 110
Background / Scenario 110
Required Resources 111
Instructions 111
Part 1: Build the Network and Configure Basic Device Settings 111
Part 2: Create VLANs and Assign Switch Ports 113
Part 3: Maintain VLAN Port Assignments and the VLAN Database 116
Part 4: Configure an 802.1Q Trunk Between the Switches 120
Part 5: Delete the VLAN Database 124
Reflection Questions 125
Device Configs - Final 125
Contents xi
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xii Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Switch S1 125
Switch S2 129
3.5.5 Packet Tracer—Configure DTP (Instructor Version) 133
Addressing Table 133
Objectives 133
Background / Scenario 133
Instructions 133
Part 1: Verify VLAN configuration 133
Part 2: Create additional VLANs on S2 and S3 134
Part 3: Assign VLANs to Ports 135
Part 4: Configure Trunks on S1, S2, and S3 136
Part 5: Reconfigure trunk on S3 138
Part 6: Verify end to end connectivity 138
Script 138
Switch S1 138
Switch S2 139
Switch S3 139
3.6.1 Packet Tracer—Implement VLANs and Trunking
(Instructor Version) 141
Addressing Table 141
Objectives 141
Background 141
Instructions 141
Part 1: Configure VLANs 141
Part 2: Assign Ports to VLANs 142
Part 3: Configure Static Trunking 142
Part 4: Configure Dynamic Trunking 142
Answer Scripts 142
Switch SWA 142
Switch SWB 143
Switch SWC 144
3.6.2 Lab—Implement VLANs and Trunking (Instructor Version) 145
Topology 145
Addressing Table 145
VLAN Table 145
Objectives 145
Background / Scenario 146
Required Resources 146
Instructions 146
Part 1: Build the Network and Configure Basic Device Settings 146
Part 2: Create VLANs and Assign Switch Ports 148
Part 3: Configure an 802.1Q Trunk Between the Switches 150
Device Configs - Final 151
Switch S1 125
Switch S2 129
3.5.5 Packet Tracer—Configure DTP (Instructor Version) 133
Addressing Table 133
Objectives 133
Background / Scenario 133
Instructions 133
Part 1: Verify VLAN configuration 133
Part 2: Create additional VLANs on S2 and S3 134
Part 3: Assign VLANs to Ports 135
Part 4: Configure Trunks on S1, S2, and S3 136
Part 5: Reconfigure trunk on S3 138
Part 6: Verify end to end connectivity 138
Script 138
Switch S1 138
Switch S2 139
Switch S3 139
3.6.1 Packet Tracer—Implement VLANs and Trunking
(Instructor Version) 141
Addressing Table 141
Objectives 141
Background 141
Instructions 141
Part 1: Configure VLANs 141
Part 2: Assign Ports to VLANs 142
Part 3: Configure Static Trunking 142
Part 4: Configure Dynamic Trunking 142
Answer Scripts 142
Switch SWA 142
Switch SWB 143
Switch SWC 144
3.6.2 Lab—Implement VLANs and Trunking (Instructor Version) 145
Topology 145
Addressing Table 145
VLAN Table 145
Objectives 145
Background / Scenario 146
Required Resources 146
Instructions 146
Part 1: Build the Network and Configure Basic Device Settings 146
Part 2: Create VLANs and Assign Switch Ports 148
Part 3: Configure an 802.1Q Trunk Between the Switches 150
Device Configs - Final 151
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Switch S1 151
Switch S2 155
Chapter 4 Inter-VLAN Routing 161
Study Guide 162
Inter-VLAN Routing Operation 162
What is Inter-VLAN Routing? 162
Legacy Inter-VLAN Routing 162
Router-on-a-Stick Inter-VLAN Routing 162
Inter-VLAN Routing on a Layer 3 Switch 162
Check Your Understanding—Inter-VLAN Routing Operation 163
Router-on-a-Stick Inter-VLAN Routing 164
Router-on-a-Stick Command Syntax 164
Router-on-a-Stick Configuration 165
Packet Tracer Exercise 4-1: Router-on-a-Stick Inter-VLAN Routing
Configuration 166
Inter-VLAN Routing Using Layer 3 Switches 166
Layer 3 Switch Inter-VLAN Routing 166
Layer 3 Switch Configuration 167
Packet Tracer 4-2: Layer 3 Switch Inter-VLAN Routing Configuration 168
Troubleshoot Inter-VLAN Routing 169
Common Inter-VLAN Issues 169
Troubleshoot Router-on-a-Stick Inter-VLAN Routing 170
Troubleshoot Layer 3 Switch Inter-VLAN Routing 171
Check Your Understanding—Troubleshoot Inter-VLAN Routing 174
Labs and Activities 175
Command Reference 175
4.2.7 Packet Tracer—Configure Router-on-a-Stick Inter-VLAN Routing
(Instructor Version) 175
Addressing Table 175
Objectives 175
Scenario 176
Instructions 176
Part 1: Add VLANs to a Switch 176
Part 2: Configure Subinterfaces 177
Part 3: Test Connectivity with Inter-VLAN Routing 177
Answer scripts 178
Switch S1 178
Router R1 179
4.2.8 Lab—Configure Router-on-a-Stick Inter-VLAN Routing
(Instructor Version) 180
Topology 180
Addressing Table 180
Contents xiii
Switch S2 155
Chapter 4 Inter-VLAN Routing 161
Study Guide 162
Inter-VLAN Routing Operation 162
What is Inter-VLAN Routing? 162
Legacy Inter-VLAN Routing 162
Router-on-a-Stick Inter-VLAN Routing 162
Inter-VLAN Routing on a Layer 3 Switch 162
Check Your Understanding—Inter-VLAN Routing Operation 163
Router-on-a-Stick Inter-VLAN Routing 164
Router-on-a-Stick Command Syntax 164
Router-on-a-Stick Configuration 165
Packet Tracer Exercise 4-1: Router-on-a-Stick Inter-VLAN Routing
Configuration 166
Inter-VLAN Routing Using Layer 3 Switches 166
Layer 3 Switch Inter-VLAN Routing 166
Layer 3 Switch Configuration 167
Packet Tracer 4-2: Layer 3 Switch Inter-VLAN Routing Configuration 168
Troubleshoot Inter-VLAN Routing 169
Common Inter-VLAN Issues 169
Troubleshoot Router-on-a-Stick Inter-VLAN Routing 170
Troubleshoot Layer 3 Switch Inter-VLAN Routing 171
Check Your Understanding—Troubleshoot Inter-VLAN Routing 174
Labs and Activities 175
Command Reference 175
4.2.7 Packet Tracer—Configure Router-on-a-Stick Inter-VLAN Routing
(Instructor Version) 175
Addressing Table 175
Objectives 175
Scenario 176
Instructions 176
Part 1: Add VLANs to a Switch 176
Part 2: Configure Subinterfaces 177
Part 3: Test Connectivity with Inter-VLAN Routing 177
Answer scripts 178
Switch S1 178
Router R1 179
4.2.8 Lab—Configure Router-on-a-Stick Inter-VLAN Routing
(Instructor Version) 180
Topology 180
Addressing Table 180
Contents xiii
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xiv Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
VLAN Table 180
Objectives 180
Background / Scenario 181
Required Resources 181
Instructions 182
Part 1: Build the Network and Configure Basic Device Settings 182
Part 2: Create VLANs and Assign Switch Ports 184
Part 3: Configure an 802.1Q Trunk Between the Switches 186
Part 4: Configure Inter-VLAN Routing on the Router 187
Part 5: Verify Inter-VLAN Routing is Working 188
Router Interface Summary Table 188
Device Configs - Final 189
Switch S1 189
Switch S2 193
Router R1 198
4.3.8 Packet Tracer—Configure Layer 3 Switching and Inter-VLAN Routing
(Instructor Version) 201
Addressing Table 201
Objectives 201
Background / Scenario 201
Instructions 202
Part 1: Configure Layer 3 Switching 202
Part 2: Configure Inter-VLAN Routing 202
Part 3: Configure IPv6 Inter-VLAN Routing 204
Script 205
MLS 205
S1 206
4.4.8 Packet Tracer—Troubleshoot Inter-VLAN Routing
(Instructor Version) 207
Addressing Table 207
Objectives 207
Scenario 207
Instructions 207
Part 1: Locate the Network Problems 207
Part 2: Implement the Solutions 208
Part 3: Verify Network Connectivity 208
4.4.9 Lab—Troubleshoot Inter-VLAN Routing (Instructor Version) 209
Topology 209
Addressing Table 209
VLAN Table 209
Objectives 209
Background / Scenario 210
VLAN Table 180
Objectives 180
Background / Scenario 181
Required Resources 181
Instructions 182
Part 1: Build the Network and Configure Basic Device Settings 182
Part 2: Create VLANs and Assign Switch Ports 184
Part 3: Configure an 802.1Q Trunk Between the Switches 186
Part 4: Configure Inter-VLAN Routing on the Router 187
Part 5: Verify Inter-VLAN Routing is Working 188
Router Interface Summary Table 188
Device Configs - Final 189
Switch S1 189
Switch S2 193
Router R1 198
4.3.8 Packet Tracer—Configure Layer 3 Switching and Inter-VLAN Routing
(Instructor Version) 201
Addressing Table 201
Objectives 201
Background / Scenario 201
Instructions 202
Part 1: Configure Layer 3 Switching 202
Part 2: Configure Inter-VLAN Routing 202
Part 3: Configure IPv6 Inter-VLAN Routing 204
Script 205
MLS 205
S1 206
4.4.8 Packet Tracer—Troubleshoot Inter-VLAN Routing
(Instructor Version) 207
Addressing Table 207
Objectives 207
Scenario 207
Instructions 207
Part 1: Locate the Network Problems 207
Part 2: Implement the Solutions 208
Part 3: Verify Network Connectivity 208
4.4.9 Lab—Troubleshoot Inter-VLAN Routing (Instructor Version) 209
Topology 209
Addressing Table 209
VLAN Table 209
Objectives 209
Background / Scenario 210
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Router R1 210
Switch S1 210
Switch S2 212
Required Resources 213
Instructions 213
Part 1: Evaluate Network Operation 213
Part 2: Gather information, create an action plan, and implement
corrections 214
Router R1 214
Switch S1 214
Switch S2 215
Device Configuration - Final 215
Router R1 215
Switch S1 217
Switch S2 221
4.5.1 Packet Tracer—Inter-VLAN Routing Challenge (Instructor Version) 227
Addressing Table 227
VLAN and Port Assignments Table 227
Scenario 227
Instructions 227
Answer Scripts 228
Switch S1 228
Router R1 229
4.5.2 Lab—Implement Inter-VLAN Routing (Instructor Version) 230
Topology 230
Addressing Table 230
VLAN Table 230
Objectives 230
Background / Scenario 231
Required Resources 231
Instructions 232
Part 1: Build the Network and Configure Basic Device Settings 232
Part 2: Create VLANs and Assign Switch Ports 234
Part 3: Configure an 802.1Q Trunk Between the Switches 236
Part 4: Configure Inter-VLAN Routing on the Router 237
Part 5: Verify Inter-VLAN Routing is Working 238
Router Interface Summary Table 239
Device Configs - Final 239
Switch S1 239
Switch S2 244
Router R1 248
Contents xv
Switch S1 210
Switch S2 212
Required Resources 213
Instructions 213
Part 1: Evaluate Network Operation 213
Part 2: Gather information, create an action plan, and implement
corrections 214
Router R1 214
Switch S1 214
Switch S2 215
Device Configuration - Final 215
Router R1 215
Switch S1 217
Switch S2 221
4.5.1 Packet Tracer—Inter-VLAN Routing Challenge (Instructor Version) 227
Addressing Table 227
VLAN and Port Assignments Table 227
Scenario 227
Instructions 227
Answer Scripts 228
Switch S1 228
Router R1 229
4.5.2 Lab—Implement Inter-VLAN Routing (Instructor Version) 230
Topology 230
Addressing Table 230
VLAN Table 230
Objectives 230
Background / Scenario 231
Required Resources 231
Instructions 232
Part 1: Build the Network and Configure Basic Device Settings 232
Part 2: Create VLANs and Assign Switch Ports 234
Part 3: Configure an 802.1Q Trunk Between the Switches 236
Part 4: Configure Inter-VLAN Routing on the Router 237
Part 5: Verify Inter-VLAN Routing is Working 238
Router Interface Summary Table 239
Device Configs - Final 239
Switch S1 239
Switch S2 244
Router R1 248
Contents xv
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xvi Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Chapter 5 STP Concepts 251
Study Guide 252
Purpose of STP 252
Issues with Redundant Switch Links 252
Layer 2 Loops 252
Broadcast Storm 252
The Spanning-Tree Algorithm 252
Check Your Understanding—Purpose of STP 253
STP Operation 253
Steps to a Loop-Free Topology 253
1. Elect the Root Bridge 254
2. Elect the Root Ports 255
3. Elect Designated Ports 255
4. Elect Alternate (Blocked) Ports 256
Elect a Root Port from Multiple Equal-Cost Paths 256
STP Timers and Port States 256
Operational Details of Each Port State 257
Check Your Understanding—STP Operations 258
Evolution of STP 259
Different Versions of STP 259
RSTP Port States and Port Roles 260
PortFast and BPDU Guard 260
Check Your Understanding—Evolution of STP 261
Labs and Activities 262
Command Reference 262
5.1.9 Packet Tracer—Investigate STP Loop Prevention
(Instructor Version) 262
Objectives 262
Background / Scenario 262
Instructions 262
Part 1: Observe a Converged Spanning-Tree Instance 262
Part 2: Observe spanning-tree convergence 263
Chapter 6 EtherChannel 265
Study Guide 266
EtherChannel Operation 266
EtherChannel Advantages 266
Implementation Restrictions 266
PAgP and LACP Autonegotiation Protocols 266
Check Your Understanding—EtherChannel Operation 268
Configure EtherChannel 269
Configuration Guidelines 269
EtherChannel Configuration Steps 269
Chapter 5 STP Concepts 251
Study Guide 252
Purpose of STP 252
Issues with Redundant Switch Links 252
Layer 2 Loops 252
Broadcast Storm 252
The Spanning-Tree Algorithm 252
Check Your Understanding—Purpose of STP 253
STP Operation 253
Steps to a Loop-Free Topology 253
1. Elect the Root Bridge 254
2. Elect the Root Ports 255
3. Elect Designated Ports 255
4. Elect Alternate (Blocked) Ports 256
Elect a Root Port from Multiple Equal-Cost Paths 256
STP Timers and Port States 256
Operational Details of Each Port State 257
Check Your Understanding—STP Operations 258
Evolution of STP 259
Different Versions of STP 259
RSTP Port States and Port Roles 260
PortFast and BPDU Guard 260
Check Your Understanding—Evolution of STP 261
Labs and Activities 262
Command Reference 262
5.1.9 Packet Tracer—Investigate STP Loop Prevention
(Instructor Version) 262
Objectives 262
Background / Scenario 262
Instructions 262
Part 1: Observe a Converged Spanning-Tree Instance 262
Part 2: Observe spanning-tree convergence 263
Chapter 6 EtherChannel 265
Study Guide 266
EtherChannel Operation 266
EtherChannel Advantages 266
Implementation Restrictions 266
PAgP and LACP Autonegotiation Protocols 266
Check Your Understanding—EtherChannel Operation 268
Configure EtherChannel 269
Configuration Guidelines 269
EtherChannel Configuration Steps 269
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EtherChannel Configuration Scenarios 270
Verify and Troubleshoot EtherChannel 271
Verify EtherChannel 271
Troubleshoot EtherChannel 273
Labs and Activities 275
Command Reference 275
6.2.4 Packet Tracer—Configure EtherChannel (Instructor Version) 275
Objectives 275
Background 275
Instructions 276
Part 1: Configure Basic Switch Settings 276
Part 2: Configure an EtherChannel with Cisco PAgP 276
Part 3: Configure an 802.3ad LACP EtherChannel 278
Part 4: Configure a Redundant EtherChannel Link 279
EtherChannel Configuration Guidelines and Restrictions 280
Answer Scripts 281
Switch S1 281
Switch S2 282
Switch S3 282
6.3.4 Packet Tracer—Troubleshoot EtherChannel (Instructor Version) 283
Objectives 283
Background 283
Instructions 284
Part 1: Examine the Physical Layer and Correct Switch Port Mode
Issues 284
Part 2: Identify and Correct Port Channel Assignment Issues 285
Part 3: Identify and Correct Port Channel Protocol Issues 285
Answer Scripts 286
Switch S1 286
Switch S2 286
Switch S3 287
Switch S4 287
6.4.1 Packet Tracer—Implement EtherChannel (Instructor Version) 288
Objectives 288
Background 288
Instructions 288
Part 1: Build the Network 288
Part 2: Configure EtherChannel 289
Answer Scripts 290
Switch SWA 290
Switch SWB 290
Switch SWC 291
Contents xvii
Verify and Troubleshoot EtherChannel 271
Verify EtherChannel 271
Troubleshoot EtherChannel 273
Labs and Activities 275
Command Reference 275
6.2.4 Packet Tracer—Configure EtherChannel (Instructor Version) 275
Objectives 275
Background 275
Instructions 276
Part 1: Configure Basic Switch Settings 276
Part 2: Configure an EtherChannel with Cisco PAgP 276
Part 3: Configure an 802.3ad LACP EtherChannel 278
Part 4: Configure a Redundant EtherChannel Link 279
EtherChannel Configuration Guidelines and Restrictions 280
Answer Scripts 281
Switch S1 281
Switch S2 282
Switch S3 282
6.3.4 Packet Tracer—Troubleshoot EtherChannel (Instructor Version) 283
Objectives 283
Background 283
Instructions 284
Part 1: Examine the Physical Layer and Correct Switch Port Mode
Issues 284
Part 2: Identify and Correct Port Channel Assignment Issues 285
Part 3: Identify and Correct Port Channel Protocol Issues 285
Answer Scripts 286
Switch S1 286
Switch S2 286
Switch S3 287
Switch S4 287
6.4.1 Packet Tracer—Implement EtherChannel (Instructor Version) 288
Objectives 288
Background 288
Instructions 288
Part 1: Build the Network 288
Part 2: Configure EtherChannel 289
Answer Scripts 290
Switch SWA 290
Switch SWB 290
Switch SWC 291
Contents xvii
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xviii Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
6.4.2 Lab—Implement EtherChannel (Instructor Version) 292
Topology 292
Addressing Table 292
VLAN Table 292
Objectives 292
Background / Scenario 292
Required Resources 293
Instructions 293
Part 1: Build the Network and Configure Basic Device Settings 293
Part 2: Create VLANs and Assign Switch Ports 294
Part 3: Configure 802.1Q trunks between the switches 296
Part 4: Implement and Verify an EtherChannel between the switches 298
Device Configs - Final 300
Switch S1 300
Switch S2 304
Chapter 7 DHCPv4 311
Study Guide 312
DHCPv4 Concepts 312
DHCPv4 Operation 312
Check Your Understanding—DHCPv4 Concepts 313
Configure a Cisco IOS DHCPv4 Server 313
Steps to Configure a Cisco IOS DHCPv4 Server 313
DHCPv4 Relay 316
Other Service Broadcasts Relayed 316
Configure a DHCPv4 Client 316
Labs and Activities 318
Command Reference 318
7.2.10 Packet Tracer—Configure DHCPv4 (Instructor Version) 319
Addressing Table 319
Objectives 319
Scenario 319
Instructions 319
Part 1: Configure a Router as a DHCP Server 319
Part 2: Configure DHCP Relay 320
Part 3: Configure a Router as a DHCP Client 321
Part 4: Verify DHCP and Connectivity 321
Answer Scripts 321
Router R1 321
Router R2 321
Router R3 322
6.4.2 Lab—Implement EtherChannel (Instructor Version) 292
Topology 292
Addressing Table 292
VLAN Table 292
Objectives 292
Background / Scenario 292
Required Resources 293
Instructions 293
Part 1: Build the Network and Configure Basic Device Settings 293
Part 2: Create VLANs and Assign Switch Ports 294
Part 3: Configure 802.1Q trunks between the switches 296
Part 4: Implement and Verify an EtherChannel between the switches 298
Device Configs - Final 300
Switch S1 300
Switch S2 304
Chapter 7 DHCPv4 311
Study Guide 312
DHCPv4 Concepts 312
DHCPv4 Operation 312
Check Your Understanding—DHCPv4 Concepts 313
Configure a Cisco IOS DHCPv4 Server 313
Steps to Configure a Cisco IOS DHCPv4 Server 313
DHCPv4 Relay 316
Other Service Broadcasts Relayed 316
Configure a DHCPv4 Client 316
Labs and Activities 318
Command Reference 318
7.2.10 Packet Tracer—Configure DHCPv4 (Instructor Version) 319
Addressing Table 319
Objectives 319
Scenario 319
Instructions 319
Part 1: Configure a Router as a DHCP Server 319
Part 2: Configure DHCP Relay 320
Part 3: Configure a Router as a DHCP Client 321
Part 4: Verify DHCP and Connectivity 321
Answer Scripts 321
Router R1 321
Router R2 321
Router R3 322
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7.4.1 Packet Tracer—Implement DHCPv4 (Instructor Version) 323
Addressing Table 323
Objectives 323
Scenario 323
Instructions 323
Part 1: Configure a Router as a DHCP Server 323
Part 2: Configure DHCP Relay 324
Part 3: Configure R2 as a DHCP Client 324
Answer Scripts 324
Router R1 324
Router R2 324
Router R3 325
7.4.2 Lab—Implement DHCPv4 (Instructor Version) 326
Topology 326
Addressing Table 326
VLAN Table 326
Objectives 326
Background / Scenario 327
Required Resources 327
Instructions 327
Part 1: Build the Network and Configure Basic Device Settings 327
Part 2: Configure and verify two DHCPv4 Servers on R1 333
Part 3: Configure and verify a DHCP Relay on R2 334
Device Configs - Final 334
Switch S1 334
Switch S2 339
Router R1 342
Router R2 345
Chapter 8 SLAAC and DHCPv6 349
Study Guide 350
IPv6 GUA Assignment 350
IPv6 Host Configuration 350
IPv6 Host Link-Local Address 350
IPv6 GUA Assignment 350
Three RA Message Flags 351
Check Your Understanding—IPv6 GUA Assignment 351
SLAAC 351
Enabling SLAAC 351
SLAAC-Only Method 351
Host Process to Generate an Interface ID 352
Duplicate Address Detection 352
Check Your Understanding—SLAAC 352
Contents xix
Addressing Table 323
Objectives 323
Scenario 323
Instructions 323
Part 1: Configure a Router as a DHCP Server 323
Part 2: Configure DHCP Relay 324
Part 3: Configure R2 as a DHCP Client 324
Answer Scripts 324
Router R1 324
Router R2 324
Router R3 325
7.4.2 Lab—Implement DHCPv4 (Instructor Version) 326
Topology 326
Addressing Table 326
VLAN Table 326
Objectives 326
Background / Scenario 327
Required Resources 327
Instructions 327
Part 1: Build the Network and Configure Basic Device Settings 327
Part 2: Configure and verify two DHCPv4 Servers on R1 333
Part 3: Configure and verify a DHCP Relay on R2 334
Device Configs - Final 334
Switch S1 334
Switch S2 339
Router R1 342
Router R2 345
Chapter 8 SLAAC and DHCPv6 349
Study Guide 350
IPv6 GUA Assignment 350
IPv6 Host Configuration 350
IPv6 Host Link-Local Address 350
IPv6 GUA Assignment 350
Three RA Message Flags 351
Check Your Understanding—IPv6 GUA Assignment 351
SLAAC 351
Enabling SLAAC 351
SLAAC-Only Method 351
Host Process to Generate an Interface ID 352
Duplicate Address Detection 352
Check Your Understanding—SLAAC 352
Contents xix
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xx Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
DHCPv6 353
DHCPv6 Operation Steps 353
Stateless DHCPv6 Operation 354
Stateful DHCPv6 Operation 354
Check Your Understanding—DHCPv6 355
Configure DHCPv6 Server 355
Configure Stateless DHCPv6 356
Configure Stateful DHCPv6 357
Check Your Understanding—Configure DHCPv6 Server 357
Labs and Activities 359
Command Reference 359
8.5.1 Lab—Configure DHCPv6 (Instructor Version) 359
Topology 359
Addressing Table 360
Objectives 360
Background / Scenario 360
Required Resources 361
Instructions 361
Part 1: Build the Network and Configure Basic Device Settings 361
Part 2: Verify SLAAC Address Assignment from R1 364
Part 3: Configure and Verify a DHCPv6 Server on R1 364
Part 4: Configure a Stateful DHCPv6 Server on R1 366
Part 5: Configure and Verify DHCPv6 Relay on R2 367
Device Configs - Final 369
Switch S1 369
Switch S2 371
Router R1 374
Router R2 377
Chapter 9 FHRP Concepts 379
Study Guide 380
First Hop Redundancy Protocols 380
Default Gateway Limitations 380
Router Redundancy 380
FHRP Options 380
Check Your Understanding—First Hop Redundancy Protocols 381
HSRP 382
HSRP Priority and Preemption 382
HSRP States and Timers 383
Check Your Understanding—HSRP 384
Labs and Activities 385
Command Reference 385
DHCPv6 353
DHCPv6 Operation Steps 353
Stateless DHCPv6 Operation 354
Stateful DHCPv6 Operation 354
Check Your Understanding—DHCPv6 355
Configure DHCPv6 Server 355
Configure Stateless DHCPv6 356
Configure Stateful DHCPv6 357
Check Your Understanding—Configure DHCPv6 Server 357
Labs and Activities 359
Command Reference 359
8.5.1 Lab—Configure DHCPv6 (Instructor Version) 359
Topology 359
Addressing Table 360
Objectives 360
Background / Scenario 360
Required Resources 361
Instructions 361
Part 1: Build the Network and Configure Basic Device Settings 361
Part 2: Verify SLAAC Address Assignment from R1 364
Part 3: Configure and Verify a DHCPv6 Server on R1 364
Part 4: Configure a Stateful DHCPv6 Server on R1 366
Part 5: Configure and Verify DHCPv6 Relay on R2 367
Device Configs - Final 369
Switch S1 369
Switch S2 371
Router R1 374
Router R2 377
Chapter 9 FHRP Concepts 379
Study Guide 380
First Hop Redundancy Protocols 380
Default Gateway Limitations 380
Router Redundancy 380
FHRP Options 380
Check Your Understanding—First Hop Redundancy Protocols 381
HSRP 382
HSRP Priority and Preemption 382
HSRP States and Timers 383
Check Your Understanding—HSRP 384
Labs and Activities 385
Command Reference 385
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9.3.3 Packet Tracer—HSRP Configuration Guide (Instructor Version) 385
Addressing Table 385
Objectives 386
Background / Scenario 386
Instructions 386
Part 1: Verify Connectivity 386
Part 2: Configure HSRP Active and Standby Routers 387
Part 3: Observe HSRP Operation 390
Answer Scripts 391
Router R1 391
Router R3 391
Switch S1 391
Switch S3 391
PC-A and PC-B 391
Chapter 10 LAN Security Concepts 393
Study Guide 394
Endpoint Security 394
Network Security Devices 394
Check Your Understanding—Endpoint Security 394
Access Control 395
Authentication with a Local Password 395
AAA Components 395
Authentication 396
Authorization 396
Accounting 396
802.1X 396
Check Your Understanding—Access Control 396
Layer 2 Security Threats 397
Switch Attack Categories 397
Switch Attack Mitigation Techniques 398
Check Your Understanding—Layer 2 Security Threats 398
MAC Address Table Attack 399
Check Your Understanding—MAC Address Table Attacks 399
LAN Attacks 400
VLAN Hopping Attacks 400
VLAN Double-Tagging Attack 400
DHCP Attacks 400
ARP Attacks 400
Address Spoofing Attack 400
STP Attack 401
CDP Reconnaissance 401
Contents xxi
Addressing Table 385
Objectives 386
Background / Scenario 386
Instructions 386
Part 1: Verify Connectivity 386
Part 2: Configure HSRP Active and Standby Routers 387
Part 3: Observe HSRP Operation 390
Answer Scripts 391
Router R1 391
Router R3 391
Switch S1 391
Switch S3 391
PC-A and PC-B 391
Chapter 10 LAN Security Concepts 393
Study Guide 394
Endpoint Security 394
Network Security Devices 394
Check Your Understanding—Endpoint Security 394
Access Control 395
Authentication with a Local Password 395
AAA Components 395
Authentication 396
Authorization 396
Accounting 396
802.1X 396
Check Your Understanding—Access Control 396
Layer 2 Security Threats 397
Switch Attack Categories 397
Switch Attack Mitigation Techniques 398
Check Your Understanding—Layer 2 Security Threats 398
MAC Address Table Attack 399
Check Your Understanding—MAC Address Table Attacks 399
LAN Attacks 400
VLAN Hopping Attacks 400
VLAN Double-Tagging Attack 400
DHCP Attacks 400
ARP Attacks 400
Address Spoofing Attack 400
STP Attack 401
CDP Reconnaissance 401
Contents xxi
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xxii Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Check Your Understanding—LAN Attacks 401
Labs and Activities 403
Chapter 11 Switch Security Configuration 405
Study Guide 406
Implement Port Security 406
Secure Unused Ports 406
Enable Port Security 406
Ports in error-disabled State 407
Verify Port Security 407
Mitigate VLAN Attacks 409
VLAN Attacks Review 409
Steps to Mitigate VLAN Hopping Attacks 409
Mitigate DHCP Attacks 409
DHCP Attack Review 410
DHCP Snooping 410
Steps to Implement DHCP Snooping 410
Mitigate ARP Attacks 411
Dynamic ARP Inspection 411
Configure DAI 411
Mitigate STP Attacks 411
PortFast and BPDU Guard 412
Configure PortFast and BPDU Guard 412
Labs and Activities 413
Command Reference 413
11.1.10 Packet Tracer—Implement Port Security (Instructor Version) 414
Addressing Table 414
Objective 414
Background 414
11.6.1 Packet Tracer—Switch Security Configuration (Instructor
Version) 416
VLAN Table 416
Objectives 416
Background 416
Instructions 416
SW1 Configurations 417
SW-2 Configuration 418
11.6.2 Lab—Switch Security Configuration (Instructor Version) 419
Topology 419
Addressing Table 419
Objectives 419
Background / Scenario 420
Check Your Understanding—LAN Attacks 401
Labs and Activities 403
Chapter 11 Switch Security Configuration 405
Study Guide 406
Implement Port Security 406
Secure Unused Ports 406
Enable Port Security 406
Ports in error-disabled State 407
Verify Port Security 407
Mitigate VLAN Attacks 409
VLAN Attacks Review 409
Steps to Mitigate VLAN Hopping Attacks 409
Mitigate DHCP Attacks 409
DHCP Attack Review 410
DHCP Snooping 410
Steps to Implement DHCP Snooping 410
Mitigate ARP Attacks 411
Dynamic ARP Inspection 411
Configure DAI 411
Mitigate STP Attacks 411
PortFast and BPDU Guard 412
Configure PortFast and BPDU Guard 412
Labs and Activities 413
Command Reference 413
11.1.10 Packet Tracer—Implement Port Security (Instructor Version) 414
Addressing Table 414
Objective 414
Background 414
11.6.1 Packet Tracer—Switch Security Configuration (Instructor
Version) 416
VLAN Table 416
Objectives 416
Background 416
Instructions 416
SW1 Configurations 417
SW-2 Configuration 418
11.6.2 Lab—Switch Security Configuration (Instructor Version) 419
Topology 419
Addressing Table 419
Objectives 419
Background / Scenario 420
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Required Resources 420
Instructions 420
Part 1: Configure the Network Devices 420
Part 2: Configure VLANs on Switches 422
Part 3: Configure Switch Security 423
Reflection Questions 429
Device Configurations - Final 429
Switch S1 429
Switch S2 433
Chapter 12 WLAN Concepts 439
Study Guide 440
Introduction to Wireless 440
Wireless Terminology 440
Check Your Understanding—Introduction to Wireless 441
WLAN Components 441
WLAN Component Terminology 442
Check Your Understanding—WLAN Components 442
WLAN Operation 443
WLAN Operation Terminology 443
Check Your Understanding—WLAN Operation 444
CAPWAP Operation 445
CAPWAP Review 445
Split MAC Architecture 445
Check Your Understanding—CAPWAP Operation 446
Channel Management 447
Frequency Channel Saturation 447
Channel Selection 448
Check Your Understanding—Channel Management 448
WLAN Threats 449
DoS Attacks 449
Rogue Access Points 449
Man-in-the-Middle Attack 449
Check Your Understanding—WLAN Threats 450
Secure WLANs 450
SSID Cloaking and MAC Address Filtering 450
Open and Shared Key Authentication Methods 450
Authentication in the Enterprise 451
WPA3 451
Check Your Understanding—Secure WLANs 452
Labs and Activities 453
Contents xxiii
Instructions 420
Part 1: Configure the Network Devices 420
Part 2: Configure VLANs on Switches 422
Part 3: Configure Switch Security 423
Reflection Questions 429
Device Configurations - Final 429
Switch S1 429
Switch S2 433
Chapter 12 WLAN Concepts 439
Study Guide 440
Introduction to Wireless 440
Wireless Terminology 440
Check Your Understanding—Introduction to Wireless 441
WLAN Components 441
WLAN Component Terminology 442
Check Your Understanding—WLAN Components 442
WLAN Operation 443
WLAN Operation Terminology 443
Check Your Understanding—WLAN Operation 444
CAPWAP Operation 445
CAPWAP Review 445
Split MAC Architecture 445
Check Your Understanding—CAPWAP Operation 446
Channel Management 447
Frequency Channel Saturation 447
Channel Selection 448
Check Your Understanding—Channel Management 448
WLAN Threats 449
DoS Attacks 449
Rogue Access Points 449
Man-in-the-Middle Attack 449
Check Your Understanding—WLAN Threats 450
Secure WLANs 450
SSID Cloaking and MAC Address Filtering 450
Open and Shared Key Authentication Methods 450
Authentication in the Enterprise 451
WPA3 451
Check Your Understanding—Secure WLANs 452
Labs and Activities 453
Contents xxiii
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xxiv Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Chapter 13 WLAN Configuration 455
Study Guide 456
Remote Site WLAN Configuration 456
Video—Configure a Wireless Network 456
The Wireless Router 456
Basic Network Setup 456
Basic Wireless Setup 457
Other Services Provided by a Wireless Router 458
Configure a Basic WLAN on the WLC 458
Video—Configure a Basic WLAN on the WLC 458
Overview of the Cisco 3504 Wireless Controller 459
Basic WLAN Configuration Steps on the WLC 460
Configure a WPA2 Enterprise WLAN on the WLC 463
Video—Define an SNMP and RADIUS Server on the WLC 463
Configure SNMP and RADIUS Servers 463
Video—Configure a VLAN for a New WLAN 465
Configure a New Interface 465
Video—Configure a DHCP Scope 467
Configure a DHCP Scope 467
Video—Configure a WPA2 Enterprise WLAN 469
Configure a WPA2-Enterprise WLAN 469
Troubleshoot WLAN Issues 471
Troubleshooting Approaches 471
Wireless Client Not Connecting 472
Troubleshooting When the Network Is Slow 473
Labs and Activities 474
13.1.10 Packet Tracer—Configure a Wireless Network
(Instructor Version) 474
Objectives 474
Introduction 474
Instructions 474
Part 1: Connect to a Wireless Router 474
Part 2: Configure the Wireless Settings 476
Part 3: Connect Wireless Clients to an Access Point 477
Part 4: Other Administrative Tasks 477
13.1.11 Lab—Configure a Wireless Network (Instructor Version) 479
Introduction 479
Recommended Equipment 479
Instructions 479
Part 1: Log into the Wireless Router 479
Part 2: Configure Basic Wireless Settings 481
Part 3: Connect a Wireless Client 482
Chapter 13 WLAN Configuration 455
Study Guide 456
Remote Site WLAN Configuration 456
Video—Configure a Wireless Network 456
The Wireless Router 456
Basic Network Setup 456
Basic Wireless Setup 457
Other Services Provided by a Wireless Router 458
Configure a Basic WLAN on the WLC 458
Video—Configure a Basic WLAN on the WLC 458
Overview of the Cisco 3504 Wireless Controller 459
Basic WLAN Configuration Steps on the WLC 460
Configure a WPA2 Enterprise WLAN on the WLC 463
Video—Define an SNMP and RADIUS Server on the WLC 463
Configure SNMP and RADIUS Servers 463
Video—Configure a VLAN for a New WLAN 465
Configure a New Interface 465
Video—Configure a DHCP Scope 467
Configure a DHCP Scope 467
Video—Configure a WPA2 Enterprise WLAN 469
Configure a WPA2-Enterprise WLAN 469
Troubleshoot WLAN Issues 471
Troubleshooting Approaches 471
Wireless Client Not Connecting 472
Troubleshooting When the Network Is Slow 473
Labs and Activities 474
13.1.10 Packet Tracer—Configure a Wireless Network
(Instructor Version) 474
Objectives 474
Introduction 474
Instructions 474
Part 1: Connect to a Wireless Router 474
Part 2: Configure the Wireless Settings 476
Part 3: Connect Wireless Clients to an Access Point 477
Part 4: Other Administrative Tasks 477
13.1.11 Lab—Configure a Wireless Network (Instructor Version) 479
Introduction 479
Recommended Equipment 479
Instructions 479
Part 1: Log into the Wireless Router 479
Part 2: Configure Basic Wireless Settings 481
Part 3: Connect a Wireless Client 482
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Part 4: Connect an Access Point (Optional) 482
Part 5: Reset to the original configuration 484
13.2.7 Packet Tracer—Configure a Basic WLAN on the WLC
(Instructor Version) 485
Addressing Table 485
Objectives 485
Background / Scenario 485
Instructions 486
Part 1: Monitor the WLC 486
Part 2: Create a Wireless LAN 486
Part 3: Connect a Host to the WLAN 488
13.3.12 Packet Tracer—Configure a WPA2 Enterprise WLAN on the WLC
(Instructor Version) 489
Addressing Table 489
Objectives 489
Background / Scenario 489
Instructions 490
Part 1: Create a new WLAN 490
Part 2: Configure a DHCP Scope and SNMP 492
Part 3: Connect Hosts to the Network 494
Reflection Questions 495
13.4.5 Packet Tracer—Troubleshoot WLAN Issues (Instructor Version) 496
Addressing Table 496
WLAN Information 496
Objectives 496
Background / Scenario 497
Instructions 497
Part 1: Troubleshoot the Network 497
Part 2: Fix Issues 498
13.5.1 Packet Tracer—WLAN Configuration (Instructor Version) 499
Addressing Table 499
WLAN Information 499
Objectives 499
Background / Scenario 500
Instructions 500
Part 1: Configure a Home Wireless Router 500
Part 2: Configure a WLC Controller Network 501
Chapter 14 Routing Concepts 503
Study Guide 504
Path Determination 504
Two Functions of a Router 504
Best Path Equals Longest Match 504
Contents xxv
Part 5: Reset to the original configuration 484
13.2.7 Packet Tracer—Configure a Basic WLAN on the WLC
(Instructor Version) 485
Addressing Table 485
Objectives 485
Background / Scenario 485
Instructions 486
Part 1: Monitor the WLC 486
Part 2: Create a Wireless LAN 486
Part 3: Connect a Host to the WLAN 488
13.3.12 Packet Tracer—Configure a WPA2 Enterprise WLAN on the WLC
(Instructor Version) 489
Addressing Table 489
Objectives 489
Background / Scenario 489
Instructions 490
Part 1: Create a new WLAN 490
Part 2: Configure a DHCP Scope and SNMP 492
Part 3: Connect Hosts to the Network 494
Reflection Questions 495
13.4.5 Packet Tracer—Troubleshoot WLAN Issues (Instructor Version) 496
Addressing Table 496
WLAN Information 496
Objectives 496
Background / Scenario 497
Instructions 497
Part 1: Troubleshoot the Network 497
Part 2: Fix Issues 498
13.5.1 Packet Tracer—WLAN Configuration (Instructor Version) 499
Addressing Table 499
WLAN Information 499
Objectives 499
Background / Scenario 500
Instructions 500
Part 1: Configure a Home Wireless Router 500
Part 2: Configure a WLC Controller Network 501
Chapter 14 Routing Concepts 503
Study Guide 504
Path Determination 504
Two Functions of a Router 504
Best Path Equals Longest Match 504
Contents xxv
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xxvi Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Build the Routing Table 505
Check Your Understanding—Path Determination 505
Packet Forwarding 506
Packet Forwarding Decision Process 506
End-to-End Packet Forwarding 506
Packet Forwarding Mechanisms 508
Check Your Understanding—Packet Forwarding 511
Basic Router Configuration Review 512
Configure and Verify Dual Stack IPv4 and IPv6 Addressing 512
Packet Tracer Exercise 14-1: Dual Stack Addressing 513
Verify Connectivity of Directly Connected Networks 514
Filter Command Output 516
IP Routing Table 517
Routing Table Principles 517
Routing Table Entries 517
Administrative Distance Exercise 518
Check Your Understanding—IP Routing Table 519
Static and Dynamic Routing 520
Static or Dynamic? 520
Dynamic Routing Protocol Concepts 521
Check Your Understanding—Dynamic and Static Routing 521
Labs and Activities 523
Command Reference 523
14.3.5 Packet Tracer—Basic Router Configuration Review
(Instructor Version) 524
Addressing Table 524
Objectives 524
Background / Scenario 525
Instructions 525
Part 1: Configure Devices and Verify Connectivity 525
Part 2: Display Router Information 528
Answer Scripts 533
Router R2 533
Chapter 15 IP Static Routing 535
Study Guide 536
Static Routes 536
Types of Static Routes 536
IPv4 Static Route Command 536
IPv6 Static Route Command 537
Check Your Understanding—Static Routes 537
Configure IP Static Route Types 538
Build the Routing Table 505
Check Your Understanding—Path Determination 505
Packet Forwarding 506
Packet Forwarding Decision Process 506
End-to-End Packet Forwarding 506
Packet Forwarding Mechanisms 508
Check Your Understanding—Packet Forwarding 511
Basic Router Configuration Review 512
Configure and Verify Dual Stack IPv4 and IPv6 Addressing 512
Packet Tracer Exercise 14-1: Dual Stack Addressing 513
Verify Connectivity of Directly Connected Networks 514
Filter Command Output 516
IP Routing Table 517
Routing Table Principles 517
Routing Table Entries 517
Administrative Distance Exercise 518
Check Your Understanding—IP Routing Table 519
Static and Dynamic Routing 520
Static or Dynamic? 520
Dynamic Routing Protocol Concepts 521
Check Your Understanding—Dynamic and Static Routing 521
Labs and Activities 523
Command Reference 523
14.3.5 Packet Tracer—Basic Router Configuration Review
(Instructor Version) 524
Addressing Table 524
Objectives 524
Background / Scenario 525
Instructions 525
Part 1: Configure Devices and Verify Connectivity 525
Part 2: Display Router Information 528
Answer Scripts 533
Router R2 533
Chapter 15 IP Static Routing 535
Study Guide 536
Static Routes 536
Types of Static Routes 536
IPv4 Static Route Command 536
IPv6 Static Route Command 537
Check Your Understanding—Static Routes 537
Configure IP Static Route Types 538
Loading page 25...
Configure Static and Default Routes 538
Configure Floating Static Routes 540
Configure Static Host Routes 540
Packet Tracer Exercise 15-1: Configure Static and Default Routes 542
Labs and Activities 543
Command Reference 543
15.6.1 Packet Tracer—Configure IPv4 and IPv6 Static and Default Routes
(Instructor Version) 544
Addressing Table 544
Objectives 544
Background / Scenario 545
Instructions 545
Part 1: Configure IPv4 Static and Floating Static Default Routes 545
Part 2: Configure IPv6 Static and Floating Static Default Routes 545
Part 3: Configure IPv4 Static and Floating Static Routes to the Internal
LANs 545
Part 4: Configure IPv6 Static and Floating Static Routes to the Internal
LANs 546
Part 5: Configure Host Routes 546
Answer Scripts 547
Router Edge_Router 547
Router ISP1 547
15.6.2 Lab—Configure IPv4 and IPv6 Static and Default Routes
(Instructor Version) 548
Topology 548
Addressing Table 548
Objectives 549
Background / Scenario 549
Required Resources 549
Instructions 550
Part 1: Build the Network and Configure Basic Device Settings 550
Part 2: Configure and verify IPv4 and IPv6 addressing on R1 and R2 552
Part 3: Configure and verify static and default routing for IPv4 on R1 and
R2 554
Part 4: Configure and verify static and default routing for IPv6 on R1 and
R2 557
Router Interface Summary Table 559
Device Configs - Final 559
Router R1 559
Router R2 561
Switch S1 563
Switch S2 566
Contents xxvii
Configure Floating Static Routes 540
Configure Static Host Routes 540
Packet Tracer Exercise 15-1: Configure Static and Default Routes 542
Labs and Activities 543
Command Reference 543
15.6.1 Packet Tracer—Configure IPv4 and IPv6 Static and Default Routes
(Instructor Version) 544
Addressing Table 544
Objectives 544
Background / Scenario 545
Instructions 545
Part 1: Configure IPv4 Static and Floating Static Default Routes 545
Part 2: Configure IPv6 Static and Floating Static Default Routes 545
Part 3: Configure IPv4 Static and Floating Static Routes to the Internal
LANs 545
Part 4: Configure IPv6 Static and Floating Static Routes to the Internal
LANs 546
Part 5: Configure Host Routes 546
Answer Scripts 547
Router Edge_Router 547
Router ISP1 547
15.6.2 Lab—Configure IPv4 and IPv6 Static and Default Routes
(Instructor Version) 548
Topology 548
Addressing Table 548
Objectives 549
Background / Scenario 549
Required Resources 549
Instructions 550
Part 1: Build the Network and Configure Basic Device Settings 550
Part 2: Configure and verify IPv4 and IPv6 addressing on R1 and R2 552
Part 3: Configure and verify static and default routing for IPv4 on R1 and
R2 554
Part 4: Configure and verify static and default routing for IPv6 on R1 and
R2 557
Router Interface Summary Table 559
Device Configs - Final 559
Router R1 559
Router R2 561
Switch S1 563
Switch S2 566
Contents xxvii
Loading page 26...
xxviii Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Chapter 16 Troubleshoot Static and Default Routes 571
Study Guide 572
Packet Processing with Static Routes 572
Check Your Understanding—Packet Processing with Static Routes 573
Troubleshoot IPv4 Static and Default Route Configuration 573
Packet Tracer Exercise 16-1: Troubleshoot IPv4 Static and Default
Routes 574
Labs and Activities 575
16.3.1 Packet Tracer—Troubleshoot Static and Default Routes
(Instructor Version) 575
Addressing Table 575
Objectives 575
Background / Scenario 576
Instructions 576
Answer Configurations 576
Router R1 576
Router R2 577
Router R3 577
16.3.2 Lab—Troubleshoot IPv4 and IPv6 Static and Default Routers
(Instructor Version) 578
Topology 578
Addressing Table 578
Objectives 578
Background / Scenario 579
Router R1 579
Router R2 579
Switch S1 580
Switch S2 580
Required Resources 581
Instructions 581
Part 1: Evaluate Network Operation 581
Part 2: Gather information, create an action plan,
and implement corrections 581
Router R1 582
Router R2 582
Router Interface Summary Table 582
Final Configuration 583
Router R1 583
Router R2 583
Switch S1 584
Switch S2 584
Chapter 16 Troubleshoot Static and Default Routes 571
Study Guide 572
Packet Processing with Static Routes 572
Check Your Understanding—Packet Processing with Static Routes 573
Troubleshoot IPv4 Static and Default Route Configuration 573
Packet Tracer Exercise 16-1: Troubleshoot IPv4 Static and Default
Routes 574
Labs and Activities 575
16.3.1 Packet Tracer—Troubleshoot Static and Default Routes
(Instructor Version) 575
Addressing Table 575
Objectives 575
Background / Scenario 576
Instructions 576
Answer Configurations 576
Router R1 576
Router R2 577
Router R3 577
16.3.2 Lab—Troubleshoot IPv4 and IPv6 Static and Default Routers
(Instructor Version) 578
Topology 578
Addressing Table 578
Objectives 578
Background / Scenario 579
Router R1 579
Router R2 579
Switch S1 580
Switch S2 580
Required Resources 581
Instructions 581
Part 1: Evaluate Network Operation 581
Part 2: Gather information, create an action plan,
and implement corrections 581
Router R1 582
Router R2 582
Router Interface Summary Table 582
Final Configuration 583
Router R1 583
Router R2 583
Switch S1 584
Switch S2 584
Loading page 27...
xxix
Command Syntax Conventions
The conventions used to present command syntax in this book are the same conventions used
in the IOS Command Reference. The Command Reference describes these conventions as
follows:
■■ Boldface indicates commands and keywords that are entered literally as shown. In actual
configuration examples and output (not general command syntax), boldface indicates
commands that are manually input by the user (such as a show command).
■■ Italic indicates arguments for which you supply actual values.
■■ Vertical bars (|) separate alternative, mutually exclusive elements.
■■ Square brackets ([ ]) indicate an optional element.
■■ Braces ({ }) indicate a required choice.
■■ Braces within brackets ([{ }]) indicate a required choice within an optional element.
Command Syntax Conventions
The conventions used to present command syntax in this book are the same conventions used
in the IOS Command Reference. The Command Reference describes these conventions as
follows:
■■ Boldface indicates commands and keywords that are entered literally as shown. In actual
configuration examples and output (not general command syntax), boldface indicates
commands that are manually input by the user (such as a show command).
■■ Italic indicates arguments for which you supply actual values.
■■ Vertical bars (|) separate alternative, mutually exclusive elements.
■■ Square brackets ([ ]) indicate an optional element.
■■ Braces ({ }) indicate a required choice.
■■ Braces within brackets ([{ }]) indicate a required choice within an optional element.
Loading page 28...
xxx Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
Introduction
This book supports instructors and students in Cisco Networking Academy, an IT skills and
career building program for learning institutions and individuals worldwide. Cisco Networking
Academy provides a variety of curricula choices, including the very popular Cisco Certified
Network Associate (CCNA) curriculum. It includes three courses oriented around the topics of
CCNA certifications.
Switching, Routing, and Wireless Essentials Labs and Study Guide is a supplement to your
classroom and laboratory experience with the Cisco Networking Academy. To be successful
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
book provides just such a collection of tools. Used to its fullest extent, it will help you gain
the knowledge as well as practice the skills associated with the content area of the Switching,
Routing, and Wireless Essentials v7 course. Specifically, this book will help you work on these
main areas:
■■ Configure devices using security best practices.
■■ Explain how Layer 2 switches forward data.
■■ Implement VLANs and trunking in a switched network.
■■ Troubleshoot inter-VLAN routing on Layer 3 devices.
■■ Explain how STP enables redundancy in a Layer 2 network.
■■ Troubleshoot EtherChannel on switched links.
■■ Implement DHCPv4 to operate across multiple LANs.
■■ Configure dynamic address allocation in IPv6 networks.
■■ Explain how FHRPs provide default gateway services in a redundant network.
■■ Explain how vulnerabilities compromise LAN security.
■■ Implement switch security to mitigate LAN attacks.
■■ Explain how WLANs enable network connectivity.
■■ Implement a WLAN using a wireless router and WLC.
■■ Explain how routers use information in packets to make forwarding decisions.
■■ Configure IPv4 and IPv6 static routes.
■■ Troubleshoot static and default route configurations.
Labs and Study Guides similar to this one are also available for the other two courses:
Introduction to Networks Labs and Study Guide and Enterprise Networking, Security, and
Automation Labs and Study Guide.
Who Should Read This Book
This book’s main audience is anyone taking the Switching, Routing, and Wireless Essentials
course of the Cisco Networking Academy curriculum. Many Academies use this Labs and
Study Guide as a required tool in the course, whereas other Academies recommend the Labs
and Study Guide as an additional resource to prepare for class exams and the CCNA certi-
fication. The secondary audience for this book is people taking CCNA-related classes from
Introduction
This book supports instructors and students in Cisco Networking Academy, an IT skills and
career building program for learning institutions and individuals worldwide. Cisco Networking
Academy provides a variety of curricula choices, including the very popular Cisco Certified
Network Associate (CCNA) curriculum. It includes three courses oriented around the topics of
CCNA certifications.
Switching, Routing, and Wireless Essentials Labs and Study Guide is a supplement to your
classroom and laboratory experience with the Cisco Networking Academy. To be successful
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
book provides just such a collection of tools. Used to its fullest extent, it will help you gain
the knowledge as well as practice the skills associated with the content area of the Switching,
Routing, and Wireless Essentials v7 course. Specifically, this book will help you work on these
main areas:
■■ Configure devices using security best practices.
■■ Explain how Layer 2 switches forward data.
■■ Implement VLANs and trunking in a switched network.
■■ Troubleshoot inter-VLAN routing on Layer 3 devices.
■■ Explain how STP enables redundancy in a Layer 2 network.
■■ Troubleshoot EtherChannel on switched links.
■■ Implement DHCPv4 to operate across multiple LANs.
■■ Configure dynamic address allocation in IPv6 networks.
■■ Explain how FHRPs provide default gateway services in a redundant network.
■■ Explain how vulnerabilities compromise LAN security.
■■ Implement switch security to mitigate LAN attacks.
■■ Explain how WLANs enable network connectivity.
■■ Implement a WLAN using a wireless router and WLC.
■■ Explain how routers use information in packets to make forwarding decisions.
■■ Configure IPv4 and IPv6 static routes.
■■ Troubleshoot static and default route configurations.
Labs and Study Guides similar to this one are also available for the other two courses:
Introduction to Networks Labs and Study Guide and Enterprise Networking, Security, and
Automation Labs and Study Guide.
Who Should Read This Book
This book’s main audience is anyone taking the Switching, Routing, and Wireless Essentials
course of the Cisco Networking Academy curriculum. Many Academies use this Labs and
Study Guide as a required tool in the course, whereas other Academies recommend the Labs
and Study Guide as an additional resource to prepare for class exams and the CCNA certi-
fication. The secondary audience for this book is people taking CCNA-related classes from
Loading page 29...
professional training organizations. This book can also be used for college- and university-level
networking courses, as well as anyone wanting to gain a detailed understanding of routing.
However, the reader should know that the content of this book tightly aligns with the Cisco
Networking Academy course. It may not be possible to complete some of the Study Guide
sections and Labs without access to the online course. Fortunately, you can purchase the
Switching, Routing, and Wireless Essentials v7.0 Companion Guide (ISBN: 9780136729358).
Goals and Methods
The most important goal of this book is to help you pass the 200-301 Cisco Certified Network
Associate exam, which is associated with the Cisco Certified Network Associate (CCNA)
certification. Passing the CCNA exam shows that you have the knowledge and skills required
to manage a small enterprise network. You can view the detailed exam topics online, at http://
learningnetwork.cisco.com. They are divided into six broad categories:
■■ Network Fundamentals
■■ Network Access
■■ IP Connectivity
■■ IP Services
■■ Security Fundamentals
■■ Automation and Programmability
The Introduction to Networks v7 course covers introductory material in the first five
bullets. The next two courses, Switching, Routing, and Wireless Essentials v7 and Enterprise
Networking, Security, and Automation v7, cover the material in more detail. Each chapter of
this book is divided into a “Study Guide” section followed by a “Labs and Activities” section.
The “Study Guide” section offers exercises that help you learn the concepts, configurations,
and troubleshooting skills 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:
■■ Concept question exercises
■■ Skill-building activities and scenarios
■■ Configuration scenarios
■■ Packet Tracer exercises
■■ Troubleshooting scenarios
The “Labs and Activities” sections include all the online course labs and Packet Tracer activity
instructions. In some chapters, this section begins with a Command Reference that you will
complete to show that you understand all the commands introduced in the chapter.
Packet Tracer and Companion Website
This book includes the instructions for all the Packet Tracer activities in the online course. You
need to be enrolled in the Introduction to Networks v7 course to access these Packet Tracer files.
Nine Packet Tracer activities have been created exclusively for this book. You can access these
unique Packet Tracer files at this book’s companion website.
Introduction xxxi
networking courses, as well as anyone wanting to gain a detailed understanding of routing.
However, the reader should know that the content of this book tightly aligns with the Cisco
Networking Academy course. It may not be possible to complete some of the Study Guide
sections and Labs without access to the online course. Fortunately, you can purchase the
Switching, Routing, and Wireless Essentials v7.0 Companion Guide (ISBN: 9780136729358).
Goals and Methods
The most important goal of this book is to help you pass the 200-301 Cisco Certified Network
Associate exam, which is associated with the Cisco Certified Network Associate (CCNA)
certification. Passing the CCNA exam shows that you have the knowledge and skills required
to manage a small enterprise network. You can view the detailed exam topics online, at http://
learningnetwork.cisco.com. They are divided into six broad categories:
■■ Network Fundamentals
■■ Network Access
■■ IP Connectivity
■■ IP Services
■■ Security Fundamentals
■■ Automation and Programmability
The Introduction to Networks v7 course covers introductory material in the first five
bullets. The next two courses, Switching, Routing, and Wireless Essentials v7 and Enterprise
Networking, Security, and Automation v7, cover the material in more detail. Each chapter of
this book is divided into a “Study Guide” section followed by a “Labs and Activities” section.
The “Study Guide” section offers exercises that help you learn the concepts, configurations,
and troubleshooting skills 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:
■■ Concept question exercises
■■ Skill-building activities and scenarios
■■ Configuration scenarios
■■ Packet Tracer exercises
■■ Troubleshooting scenarios
The “Labs and Activities” sections include all the online course labs and Packet Tracer activity
instructions. In some chapters, this section begins with a Command Reference that you will
complete to show that you understand all the commands introduced in the chapter.
Packet Tracer and Companion Website
This book includes the instructions for all the Packet Tracer activities in the online course. You
need to be enrolled in the Introduction to Networks v7 course to access these Packet Tracer files.
Nine Packet Tracer activities have been created exclusively for this book. You can access these
unique Packet Tracer files at this book’s companion website.
Introduction xxxi
Loading page 30...
xxxii Switching, Routing, and Wireless Essentials Labs and Study Guide (CCNAv7)
To get your copy of Packet Tracer software and the nine unique files for this book, please go to
the companion website for instructions. To access this companion website, follow these steps:
Step 1. Go to www.ciscopress.com/register and log in or create a new account.
Step 2. Enter the ISBN: 9780136634386.
Step 3. Answer the challenge question as proof of purchase.
Step 4. Click on the Access Bonus Content link in the Registered Products section of your
account page to be taken to the page where your downloadable content is available.
How This Book Is Organized
This book corresponds closely to the Cisco Networking Academy Switching, Routing,
and Wireless Essentials v7 course and is divided into 16 chapters:
■■ Chapter 1, “Basic Device Configuration”: This chapter explains how to configure
devices using security best practices. It includes initial switch and router configuration,
switch port configuration, remote access configuration, and verification of connectivity
between two networks.
■■ Chapter 2, “Switching Concepts”: This chapter explains how switches forward data.
It includes frame forwarding methods and collision and broadcast domain comparison.
■■ Chapter 3, “VLANs”: This chapter explains how to implement VLANs and trunk-
ing in a switched network. It includes an explanation of the purpose of VLANs, how
VLANs forward frames in a multi-switched environment, VLAN port assignments, trunk
configuration, and DTP configuration.
■■ Chapter 4, “Inter-VLAN Routing”: This chapter explains how to implement inter-VLAN
routing. It includes a description of inter-VLAN routing options, router-on-a-stick
configuration, Layer 3 switch inter-VLAN routing, and troubleshooting of common
inter-VLAN routing configuration issues.
■■ Chapter 5, “STP Concepts”: This chapter explains how STP enables redundancy in a
Layer 3 network. It includes an explanation of common problems in redundant Layer 2
networks, STP operation, and Rapid PVST+ operation.
■■ Chapter 6, “EtherChannel”: This chapter explains how to implement EtherChannel
on switched links. It includes a description of EtherChannel technology, EtherChannel
configuration, and EtherChannel troubleshooting.
■■ Chapter 7, “DHCPv4”: This chapter explains how to implement DHCPv4 for multiple
LANs. It includes an explanation of DHCPv4 operation and how to configure a router as
a DHCPv4 server or DHCPv4 client.
■■ Chapter 8, “SLAAC and DHCPv6”: This chapter explains how to implement dynamic
address allocation in an IPv6 network. It includes an explanation of how an IPv6 host
acquires its addressing, SLAAC operation, DHCPv6 operation, and how to configure a
router as a stateful or stateless DHCPv6 server.
■■ Chapter 9, “FHRP Concepts”: This chapter explains how FHRPs provide default
gateway services in a redundant network. It includes an explanation of the purpose of
FHRPs and HSRP operation.
■■ Chapter 10, “LAN Security Concepts”: This chapter explains how vulnerabilities
compromise LAN security. It includes an explanation of how to use endpoint security,
To get your copy of Packet Tracer software and the nine unique files for this book, please go to
the companion website for instructions. To access this companion website, follow these steps:
Step 1. Go to www.ciscopress.com/register and log in or create a new account.
Step 2. Enter the ISBN: 9780136634386.
Step 3. Answer the challenge question as proof of purchase.
Step 4. Click on the Access Bonus Content link in the Registered Products section of your
account page to be taken to the page where your downloadable content is available.
How This Book Is Organized
This book corresponds closely to the Cisco Networking Academy Switching, Routing,
and Wireless Essentials v7 course and is divided into 16 chapters:
■■ Chapter 1, “Basic Device Configuration”: This chapter explains how to configure
devices using security best practices. It includes initial switch and router configuration,
switch port configuration, remote access configuration, and verification of connectivity
between two networks.
■■ Chapter 2, “Switching Concepts”: This chapter explains how switches forward data.
It includes frame forwarding methods and collision and broadcast domain comparison.
■■ Chapter 3, “VLANs”: This chapter explains how to implement VLANs and trunk-
ing in a switched network. It includes an explanation of the purpose of VLANs, how
VLANs forward frames in a multi-switched environment, VLAN port assignments, trunk
configuration, and DTP configuration.
■■ Chapter 4, “Inter-VLAN Routing”: This chapter explains how to implement inter-VLAN
routing. It includes a description of inter-VLAN routing options, router-on-a-stick
configuration, Layer 3 switch inter-VLAN routing, and troubleshooting of common
inter-VLAN routing configuration issues.
■■ Chapter 5, “STP Concepts”: This chapter explains how STP enables redundancy in a
Layer 3 network. It includes an explanation of common problems in redundant Layer 2
networks, STP operation, and Rapid PVST+ operation.
■■ Chapter 6, “EtherChannel”: This chapter explains how to implement EtherChannel
on switched links. It includes a description of EtherChannel technology, EtherChannel
configuration, and EtherChannel troubleshooting.
■■ Chapter 7, “DHCPv4”: This chapter explains how to implement DHCPv4 for multiple
LANs. It includes an explanation of DHCPv4 operation and how to configure a router as
a DHCPv4 server or DHCPv4 client.
■■ Chapter 8, “SLAAC and DHCPv6”: This chapter explains how to implement dynamic
address allocation in an IPv6 network. It includes an explanation of how an IPv6 host
acquires its addressing, SLAAC operation, DHCPv6 operation, and how to configure a
router as a stateful or stateless DHCPv6 server.
■■ Chapter 9, “FHRP Concepts”: This chapter explains how FHRPs provide default
gateway services in a redundant network. It includes an explanation of the purpose of
FHRPs and HSRP operation.
■■ Chapter 10, “LAN Security Concepts”: This chapter explains how vulnerabilities
compromise LAN security. It includes an explanation of how to use endpoint security,
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