Cisco Networking Academy, Allan Johnson
Enterprise Networking, Security, and Automation Course Booklet (Ccnav7)
Cisco Networking Academy, Allan Johnson
Enterprise Networking, Security, and Automation Course Booklet (Ccnav7)
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The Cisco Networking Academy Course Booklet is designed as a study resource students can easily read, highlight, and review on the go, wherever the Internet is not available or practical: * The text is extracted directly, word-for-word, from the online course so you can highlight important points and take notes in the "Your Chapter Notes” section. * Headings with the exact page correlations provide a quick reference to the online course for your classroom discussions and exam preparation. * An icon system directs you to the online curriculum to take full advantage of the images embedded within…mehr
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The Cisco Networking Academy Course Booklet is designed as a study resource students can easily read, highlight, and review on the go, wherever the Internet is not available or practical: * The text is extracted directly, word-for-word, from the online course so you can highlight important points and take notes in the "Your Chapter Notes” section. * Headings with the exact page correlations provide a quick reference to the online course for your classroom discussions and exam preparation. * An icon system directs you to the online curriculum to take full advantage of the images embedded within the Networking Academy online course interface and reminds you to do the labs, interactive activities, packet tracer activities, watch videos, and take the chapter quizzes. The Course Booklet is a basic, economical paper-based resource to help students succeed with the Cisco Networking Academy Enterprise Networking, Security, and Automation v7.0 (ENSA) online course.
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Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Produktdetails
- Produktdetails
- Verlag: Pearson Education
- Seitenzahl: 416
- Erscheinungstermin: 22. August 2020
- Englisch
- Abmessung: 274mm x 216mm x 25mm
- Gewicht: 953g
- ISBN-13: 9780136634737
- ISBN-10: 0136634737
- Artikelnr.: 58048606
- Verlag: Pearson Education
- Seitenzahl: 416
- Erscheinungstermin: 22. August 2020
- Englisch
- Abmessung: 274mm x 216mm x 25mm
- Gewicht: 953g
- ISBN-13: 9780136634737
- ISBN-10: 0136634737
- Artikelnr.: 58048606
Cisco Networking Academy teaches hundreds of thousands of students annually the skills needed to build, design, and maintain networks, improving their career prospects while filling the global demand for networking professionals. With 10,000 academies in 165 countries, it helps individuals prepare for industry-recognized certifications and entry-level information and communication technology careers in virtually every industry—developing foundational technical skills while acquiring vital 21st-century career skills in problem solving, collaboration, and critical thinking. Cisco Networking Academy uses a public-private partnership model to create the "world's largest classroom."
Introduction xxx Chapter 1 Single
Area OSPFv2 Concepts 1 Introduction
1.0 1 Why should I take this module?
1.0.1 1 What will I learn to do in this module?
1.0.2 1 OSPF Features and Characteristics
1.1 1 Introduction to OSPF
1.1.1 1 Components of OSPF
1.1.2 2 Link
State Operation
1.1.3 3 Single
Area and Multiarea OSPF
1.1.4 4 Multiarea OSPF
1.1.5 4 OSPFv3
1.1.6 5 Check Your Understanding
OSPF Features and Characteristics
1.1.7 6 OSPF Packets
1.2 6 Video
OSPF Packets
1.2.1 6 Types of OSPF Packets
1.2.2 6 Link
State Updates
1.2.3 7 Hello Packet
1.2.4 7 Check Your Understanding
OSPF Packets
1.2.5 7 OSPF Operation
1.3 7 Video
OSPF Operation
1.3.1 7 OSPF Operational States
1.3.2 7 Establish Neighbor Adjacencies
1.3.3 8 Synchronizing OSPF Databases
1.3.4 9 The Need for a DR
1.3.5 10 LSA Flooding With a DR
1.3.6 11 Check Your Understanding
OPSF Operation
1.3.7 11 Module Practice and Quiz
1.4 11 What did I learn in this module?
1.4.1 11 Chapter Quiz
Single
Area OSPFv2 Concepts 14 Your Chapter Notes 14 Chapter 2 Single
Area OSPFv2 Configuration 15 Introduction
2.0 15 Why should I take this module?
2.0.1 15 What will I learn to do in this module?
2.0.2 15 OSPF Router ID
2.1 15 OSPF Reference Topology
2.1.1 15 Router Configuration Mode for OSPF
2.1.2 16 Router IDs
2.1.3 16 Router ID Order of Precedence
2.1.4 17 Configure a Loopback Interface as the Router ID
2.1.5 17 Explicitly Configure a Router ID
2.1.6 18 Modify a Router ID
2.1.7 18 Syntax Checker
Configure R2 and R3 Router IDs
2.1.8 19 Check Your Understanding
OSPF Router ID
2.1.9 19 Point
to
Point OSPF Networks
2.2 20 The network Command Syntax
2.2.1 20 The Wildcard Mask
2.2.2 20 Check Your Understanding
The Wildcard Masks
2.2.3 20 Configure OSPF Using the network Command
2.2.4 20 Syntax Checker
Configure R2 and R3 Using the network Command
2.2.5 21 Configure OSPF Using the ip ospf Command
2.2.6 21 Syntax Checker
Configure R2 and R3 Using the ip ospf Command
2.2.7 22 Passive Interface
2.2.8 22 Configure Passive Interfaces
2.2.9 23 Syntax Checker
Configure R2 and R3 Passive Interfaces
2.2.10 24 OSPF Point
to
Point Networks
2.2.11 24 Loopbacks and Point
to
Point Networks
2.2.12 26 Packet Tracer
Point
to
Point Single
Area OSPFv2 Configuration
2.2.13 26 Multiaccess OSPF Networks
2.3 27 OSPF Network Types
2.3.1 27 OSPF Designated Router
2.3.2 27 OSPF Multiaccess Reference Topology
2.3.3 27 Verify OSPF Router Roles
2.3.4 28 Verify DR/BDR Adjacencies
2.3.5 30 Default DR/BDR Election Process
2.3.6 32 DR Failure and Recovery
2.3.7 33 The ip ospf priority Command
2.3.8 33 Configure OSPF Priority
2.3.9 34 Syntax Checker
Configure OSPF Priority
2.3.10 35 Packet Tracer
Determine the DR and BDR
2.3.11 35 Modify Single
Area OSPFv2
2.4 36 Cisco OSPF Cost Metric
2.4.1 36 Adjust the Reference Bandwidth
2.4.2 36 OSPF Accumulates Costs
2.4.3 38 Manually Set OSPF Cost Value
2.4.4 38 Test Failover to Backup Route
2.4.5 39 Syntax Checker
Modify the Cost Values for R2 and R3
2.4.6 40 Hello Packet Intervals
2.4.7 40 Verify Hello and Dead Intervals
2.4.8 40 Modify OSPFv2 Intervals
2.4.9 42 Syntax Checker
Modifying Hello and Dead Intervals on R3
2.4.10 43 Packet Tracer
Modify Single
Area OSPFv2
2.4.11 43 Default Route Propagation
2.5 43 Propagate a Default Static Route in OSPFv2
2.5.1 43 Verify the Propagated Default Route
2.5.2 44 Packet Tracer
Propagate a Default Route in OSPFv2
2.5.3 46 Verify Single
Area OSPFv2
2.6 46 Verify OSPF Neighbors
2.6.1 46 Verify OSPF Protocol Settings
2.6.2 48 Verify OSPF Process Information
2.6.3 48 Verify OSPF Interface Settings
2.6.4 50 Syntax Checker
Verify Single
Area OSPFv2
2.6.5 51 Packet Tracer
Verify Single
Area OSPFv2
2.6.6 51 Module Practice and Quiz
2.7 51 Packet Tracer
Single
Area OSPFv2 Configuration
2.7.1 51 Lab
Single
Area OSPFv2 Configuration
2.7.2 51 What did I learn in this module?
2.7.3 52 Chapter Quiz
Single
Area OSPFv2 Configuration 56 Your Chapter Notes 56 Chapter 3 Network Security Concepts 57 Introduction
3.0 57 Why should I take this module?
3.0.1 57 What will I learn in this module?
3.0.2 57 Ethical Hacking Statement
3.0.3 57 Current State of Cybersecurity
3.1 58 Current State of Affairs
3.1.1 58 Vectors of Network Attacks
3.1.2 58 Data Loss
3.1.3 59 Check Your Understanding
Current State of Cybersecurity
3.1.4 60 Threat Actors
3.2 60 The Hacker
3.2.1 60 Evolution of Hackers
3.2.2 61 Cyber Criminals
3.2.3 61 Hacktivists
3.2.4 61 State
Sponsored Hackers
3.2.5 61 Check Your Understanding
Threat Actors
3.2.6 62 Threat Actor Tools
3.3 62 Video
Threat Actor Tools
3.3.1 62 Introduction to Attack Tools
3.3.2 62 Evolution of Security Tools
3.3.3 62 Attack Types
3.3.4 63 Check Your Understanding
Threat Actor Tools
3.3.5 64 Malware
3.4 64 Overview of Malware
3.4.1 64 Viruses and Trojan Horses
3.4.2 64 Other Types of Malware
3.4.3 65 Check Your Understanding
Malware
3.4.4 66 Common Network Attacks
3.5 66 Overview of Network Attacks
3.5.1 66 Video
Reconnaissance Attacks
3.5.2 67 Reconnaissance Attacks
3.5.3 67 Video
Access and Social Engineering Attacks
3.5.4 68 Access Attacks
3.5.5 68 Social Engineering Attacks
3.5.6 69 Lab
Social Engineering
3.5.7 70 Video
Denial of Service Attacks
3.5.8 70 DoS and DDoS Attacks
3.5.9 70 Check Your Understanding
Common Network Attacks
3.5.10 71 IP Vulnerabilities and Threats
3.6 71 Video
Common IP and ICMP Attacks
3.6.1 71 IPv4 and IPv6
3.6.2 71 ICMP Attacks
3.6.3 71 Video
Amplification, Reflection, and Spoofing Attacks
3.6.4 72 Amplification and Reflection Attacks
3.6.5 72 Address Spoofing Attacks
3.6.6 72 Check Your Understanding
IP Vulnerabilities and Threats
3.6.7 73 TCP and UDP Vulnerabilities
3.7 73 TCP Segment Header
3.7.1 73 TCP Services
3.7.2 73 TCP Attacks
3.7.3 74 UDP Segment Header and Operation
3.7.4 74 UDP Attacks
3.7.5 75 Check Your Understanding
TCP and UDP Vulnerabilities
3.7.6 75 IP Services
3.8 75 ARP Vulnerabilities
3.8.1 75 ARP Cache Poisoning
3.8.2 76 Video
ARP Spoofing
3.8.3 76 DNS Attacks
3.8.4 76 DNS Tunneling
3.8.5 78 DHCP
3.8.6 78 DHCP Attacks
3.8.7 78 Lab
Explore DNS Traffic
3.8.8 79 Network Security Best Practices
3.9 80 Confidentiality, Integrity, and Availability
3.9.1 80 The Defense
in
Depth Approach
3.9.2 80 Firewalls
3.9.3 80 IPS
3.9.4 81 Content Security Appliances
3.9.5 81 Check Your Understanding
Network Security Best Practices
3.9.6 82 Cryptography
3.10 82 Video
Cryptography
3.10.1 82 Securing Communications
3.10.2 82 Data Integrity
3.10.3 83 Hash Functions
3.10.4 83 Origin Authentication
3.10.5 84 Data Confidentiality
3.10.6 85 Symmetric Encryption
3.10.7 85 Asymmetric Encryption
3.10.8 86 Diffie
Hellman
3.10.9 87 Check Your Understanding
Cryptography
3.10.10 88 Module Practice and Quiz
3.11 88 What did I learn in this module?
3.11.1 88 Chapter Quiz
Network Security Concepts 91 Your Chapter Notes 91 Chapter 4 ACL Concepts 93 Introduction
4.0 93 Why should I take this module?
4.0.1 93 What will I learn to do in this module?
4.0.2 93 Purpose of ACLs
4.1 93 What is an ACL?
4.1.1 93 Packet Filtering
4.1.2 95 ACL Operation
4.1.3 95 Packet Tracer
ACL Demonstration
4.1.4 96 Check Your Understanding
Purpose of ACLs
4.1.5 96 Wildcard Masks in ACLs
4.2 96 Wildcard Mask Overview
4.2.1 96 Wildcard Mask Types
4.2.2 97 Wildcard Mask Calculation
4.2.3 97 Wildcard Mask Keywords
4.2.4 98 Check Your Understanding
Wildcard Masks in ACLs
4.2.5 99 Guidelines for ACL Creation
4.3 99 Limited Number of ACLs per Interface
4.3.1 99 ACL Best Practices
4.3.2 99 Check Your Understanding
Guidelines for ACL Creation
4.3.3 100 Types of IPv4 ACLs
4.4 100 Standard and Extended ACLs
4.4.1 100 Numbered and Named ACLs
4.4.2 101 Where to Place ACLs
4.4.3 102 Standard ACL Placement Example
4.4.4 102 Extended ACL Placement Example
4.4.5 103 Check Your Understanding
Guidelines for ACL Placement
4.4.6 103 Module Practice and Quiz
4.5 103 What did I learn in this module?
4.5.1 103 Chapter Quiz
ACL Concepts 106 Your Chapter Notes 106 Chapter 5 ACLs for IPv4 Configuration 107 Introduction
5.0 107 Why should I take this module?
5.0.1 107 What will I learn to do in this module?
5.0.2 107 Configure Standard IPv4 ACLs
5.1 107 Create an ACL
5.1.1 107 Numbered Standard IPv4 ACL Syntax
5.1.2 108 Named Standard IPv4 ACL Syntax
5.1.3 109 Apply a Standard IPv4 ACL
5.1.4 109 Numbered Standard IPv4 ACL Example
5.1.5 110 Named Standard IPv4 ACL Example
5.1.6 111 Syntax Check
Configure Standard IPv4 ACLs
5.1.7 112 Packet Tracer
Configure Numbered Standard IPv4 ACLs
5.1.8 113 Packet Tracer
Configure Named Standard IPv4 ACLs
5.1.9 113 Modify IPv4 ACLs
5.2 113 Two Methods to Modify an ACL
5.2.1 113 Text Editor Method
5.2.2 113 Sequence Numbers Method
5.2.3 114 Modify a Named ACL Example
5.2.4 115 ACL Statistics
5.2.5 116 Syntax Checker
Modify IPv4 ACLs
5.2.6 116 Packet Tracer
Configure and Modify Standard IPv4 ACLs
5.2.7 116 Secure VTY Ports with a Standard IPv4 ACL
5.3 116 The access
class Command
5.3.1 116 Secure VTY Access Example
5.3.2 117 Verify the VTY Port is Secured
5.3.3 118 Syntax Checker
Secure the VTY Ports
5.3.4 118 Configure Extended IPv4 ACLs
5.4 119 Extended ACLs
5.4.1 119 Numbered Extended IPv4 ACL Syntax
5.4.2 119 Protocols and Ports
5.4.3 120 Protocols and Port Numbers Configuration Examples
5.4.4 123 Apply a Numbered Extended IPv4 ACL
5.4.5 123 TCP Established Extended ACL
5.4.6 123 Named Extended IPv4 ACL Syntax
5.4.7 124 Named Extended IPv4 ACL Example
5.4.8 125 Edit Extended ACLs
5.4.9 126 Another Named Extended IPv4 ACL Example
5.4.10 127 Verify Extended ACLs
5.4.11 128 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 1
5.4.12 130 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 2
5.4.13 130 Module Practice and Quiz
5.5 130 Packet Tracer
IPv4 ACL Implementation Challenge
5.5.1 130 Lab
Configure and Verify Extended IPv4 ACLs
5.5.2 131 What did I learn in this module?
5.5.3 131 Chapter Quiz
ACLs for IPv4 Implementation 133 Your Chapter Notes 133 Chapter 6 NAT for IPv4 135 Introduction
6.0 135 Why should I take this module?
6.0.1 135 What will I learn to do in this module?
6.0.2 135 NAT Characteristics
6.1 135 IPv4 Private Address Space
6.1.1 135 What is NAT
6.1.2 136 How NAT Works
6.1.3 137 NAT Terminology
6.1.4 137 Check Your Understanding
NAT Characteristics
6.1.5 138 Types of NAT
6.2 139 Static NAT
6.2.1 139 Dynamic NAT
6.2.2 139 Port Address Translation
6.2.3 139 Next Available Port
6.2.4 140 NAT and PAT Comparison
6.2.5 140 Packets without a Layer 4 Segment
6.2.6 141 Packet Tracer
Investigate NAT Operations
6.2.7 141 NAT Advantages and Disadvantages
6.3 142 Advantages of NAT
6.3.1 142 Disadvantages of NAT
6.3.2 142 Check Your Understanding
NAT Advantages and Disadvantages
6.3.3 143 Static NAT
6.4 143 Static NAT Scenario
6.4.1 143 Configure Static NAT
6.4.2 143 Analyze Static NAT
6.4.3 144 Verify Static NAT
6.4.4 144 Packet Tracer
Configure Static NAT
6.4.5 145 Dynamic NAT
6.5 146 Dynamic NAT Scenario
6.5.1 146 Configure Dynamic NAT
6.5.2 146 Analyze Dynamic NAT
Inside to Outside
6.5.3 147 Analyze Dynamic NAT
Outside to Inside
6.5.4 147 Verify Dynamic NAT
6.5.5 148 Packet Tracer
Configure Dynamic NAT
6.5.6 150 PAT
6.6 150 PAT Scenario
6.6.1 150 Configure PAT to Use a Single IPv4 Address
6.6.2 150 Configure PAT to Use an Address Pool
6.6.3 151 Analyze PAT
PC to Server
6.6.4 151 Analyze PAT
Server to PC
6.6.5 151 Verify PAT
6.6.6 151 Packet Tracer
Configure PAT
6.6.7 152 NAT64
6.7 153 NAT for IPv6?
6.7.1 153 NAT64
6.7.2 153 Module Practice and Quiz
6.8 153 Packet Tracer
Configure NAT for IPv4
6.8.1 153 Lab
Configure NAT for IPv4
6.8.2 154 What did I learn in this module?
6.8.3 154 Chapter Quiz
NAT for IPv4 158 Your Chapter Notes 158 Chapter 7 WAN Concepts 159 Introduction
7.0 159 Why should I take this module?
7.0.1 159 What will I learn to do in this module?
7.0.2 159 Purpose of WANs
7.1 159 LANs and WANs
7.1.1 159 Private and Public WANs
7.1.2 160 WAN Topologies
7.1.3 160 Carrier Connections
7.1.4 162 Evolving Networks
7.1.5 162 Check Your Understanding
Purpose of WANs
7.1.6 164 WAN Operations
7.2 164 WAN Standards
7.2.1 164 WANs in the OSI Model
7.2.2 164 Common WAN Terminology
7.2.3 165 WAN Devices
7.2.4 166 Serial Communication
7.2.5 167 Circuit
Switched Communication
7.2.6 168 Packet
Switched Communications
7.2.7 168 SDH, SONET, and DWDM
7.2.8 169 Check Your Understanding
WAN Operations
7.2.9 169 Traditional WAN Connectivity
7.3 169 Traditional WAN Connectivity Options
7.3.1 169 Common WAN Terminology
7.3.2 169 Circuit
Switched Options
7.3.3 170 Packet
Switched Options
7.3.4 171 Check Your Understanding
Traditional WAN Connectivity
7.3.5 172 Modern WAN Connectivity
7.4 172 Modern WANs
7.4.1 172 Modern WAN Connectivity Options
7.4.2 172 Ethernet WAN
7.4.3 173 MPLS
7.4.4 174 Check Your Understanding
Modern WAN Connectivity
7.4.5 174 Internet
Based Connectivity
7.5 174 Internet
Based Connectivity Options
7.5.1 174 DSL Technology
7.5.2 175 DSL Connections
7.5.3 175 DSL and PPP
7.5.4 176 Cable Technology
7.5.5 176 Optical Fiber
7.5.6 177 Wireless Internet
Based Broadband
7.5.7 177 VPN Technology
7.5.8 179 ISP Connectivity Options
7.5.9 179 Broadband Solution Comparison
7.5.10 180 Lab
Research Broadband Internet Access Options
7.5.11 181 Module Practice and Quiz
7.6 181 Packet Tracer
WAN Concepts
7.6.1 181 What did I learn in this module?
7.6.2 181 Chapter Quiz
WAN Concepts 184 Your Chapter Notes 184 Chapter 8 VPN and IPsec Concepts 185 Introduction
8.0 185 Why should I take this module?
8.0.1 185 What will I learn in this module?
8.0.2 185 VPN Technology
8.1 185 Virtual Private Networks
8.1.1 185 VPN Benefits
8.1.2 186 Site
to
Site and Remote
Access VPNs
8.1.3 186 Enterprise and Service Provider VPNs
8.1.4 186 Check Your Understanding
VPN Technology
8.1.5 187 Types of VPNs
8.2 187 Remote
Access VPNs
8.2.1 187 SSL VPNs
8.2.2 187 Site
to
Site IPsec VPNs
8.2.3 188 GRE over IPsec
8.2.4 188 Dynamic Multipoint VPNs
8.2.5 189 IPsec Virtual Tunnel Interface
8.2.6 189 Service Provider MPLS VPNs
8.2.7 190 Check Your Understanding
Types of VPNs
8.2.8 190 IPsec
8.3 190 Video
IPsec Concepts
8.3.1 190 IPsec Technologies
8.3.2 190 IPsec Protocol Encapsulation
8.3.3 191 Confidentiality
8.3.4 192 Integrity
8.3.5 192 Authentication
8.3.6 192 Secure Key Exchange with Diffie
Hellman
8.3.7 193 Video
IPsec Transport and Tunnel Mode
8.3.8 193 Check Your Understanding
IPsec
8.3.9 193 Module Practice and Quiz
8.4 193 What did I learn in this module?
8.4.1 193 Chapter Quiz
VPN and IPsec Concepts 195 Your Chapter Notes 195 Chapter 9 QoS Concepts 197 Introduction
9.0 197 Why should I take this module?
9.0.1 197 What will I learn to do in this module?
9.0.2 197 Network Transmission Quality
9.1 197 Video Tutorial
The Purpose of QoS
9.1.1 197 Prioritizing Traffic
9.1.2 197 Bandwidth, Congestion, Delay, and Jitter
9.1.3 198 Packet Loss
9.1.4 199 Check Your Understanding
Network Transmission Quality
9.1.5 199 Traffic Characteristics
9.2 199 Video Tutorial
Traffic Characteristics
9.2.1 199 Network Traffic Trends
9.2.2 199 Voice
9.2.3 200 Video
9.2.4 200 Data
9.2.5 201 Check Your Understanding
Traffic Characteristics
9.2.6 202 Queuing Algorithms
9.3 202 Video Tutorial
QoS Algorithms
9.3.1 202 Queuing Overview
9.3.2 202 First In First Out
9.3.3 202 Weighted Fair Queuing (WFQ)
9.3.4 203 Class
Based Weighted Fair Queuing (CBWFQ)
9.3.5 203 Low Latency Queuing (LLQ)
9.3.6 204 Check Your Understanding
Queuing Algorithms
9.3.7 204 QoS Models
9.4 204 Video Tutorial
QoS Models
9.4.1 204 Selecting an Appropriate QoS Policy Model
9.4.2 204 Best Effort
9.4.3 205 Integrated Services
9.4.4 206 Differentiated Services
9.4.5 206 Check Your Understanding
QoS Models
9.4.6 208 QoS Implementation Techniques
9.5 208 Video Tutorial
QoS Implementation Techniques
9.5.1 208 Avoiding Packet Loss
9.5.2 208 QoS Tools
9.5.3 208 Classification and Marking
9.5.4 209 Marking at Layer 2
9.5.5 210 Marking at Layer 3
9.5.6 210 Type of Service and Traffic Class Field
9.5.7 211 DSCP Values
9.5.8 211 Class Selector Bits
9.5.9 211 Trust Boundaries
9.5.10 211 Congestion Avoidance
9.5.11 212 Shaping and Policing
9.5.12 212 QoS Policy Guidelines
9.5.13 213 Check Your Understanding
QoS Implementation Techniques
9.5.14 213 Module Practice and Quiz
9.6 213 What did I learn in this module?
9.6.1 213 Chapter Quiz
QoS Concepts 216 Your Chapter Notes 216 Chapter 10 Network Management 217 Introduction
10.0 217 Why should I take this module?
10.0.1 217 What will I learn to do in this module?
10.0.2 217 Device Discovery with CDP
10.1 217 CDP Overview
10.1.1 217 Configure and Verify CDP
10.1.2 218 Discover Devices by Using CDP
10.1.3 220 Syntax Checker
Configure and Verify CDP
10.1.4 222 Packet Tracer
Use CDP to Map a Network
10.1.5 222 Device Discovery with LLDP
10.2 222 LLDP Overview
10.2.1 222 Configure and Verify LLDP
10.2.2 222 Discover Devices by Using LLDP
10.2.3 223 Syntax Checker
Configure and Verify LLDP
10.2.4 225 Check Your Understanding
Compare CDP and LLDP
10.2.5 225 Packet Tracer
Use LLDP to Map a Network
10.2.6 225 NTP
10.3 225 Time and Calendar Services
10.3.1 225 NTP Operation
10.3.2 226 Configure and Verify NTP
10.3.3 227 Packet Tracer
Configure and Verify NTP
10.3.4 229 SNMP
10.4 229 Introduction to SNMP
10.4.1 229 SNMP Operation
10.4.2 230 SNMP Agent Traps
10.4.3 230 SNMP Versions
10.4.4 231 Check Your Understanding
SNMP Versions
10.4.5 232 Community Strings
10.4.6 232 MIB Object ID
10.4.7 233 SNMP Polling Scenario
10.4.8 233 SNMP Object Navigator
10.4.9 233 Lab
Research Network Monitoring Software
10.4.10 234 Syslog
10.5 234 Introduction to Syslog
10.5.1 234 Syslog Operation
10.5.2 234 Syslog Message Format
10.5.3 235 Syslog Facilities
10.5.4 236 Configure Syslog Timestamp
10.5.5 236 Check Your Understanding
Syslog Operation
10.5.6 237 Router and Switch File Maintenance
10.6 237 Router File Systems
10.6.1 237 Switch File Systems
10.6.2 240 Use a Text File to Back Up a Configuration
10.6.3 241 Use a Text File to Restore a Configuration
10.6.4 241 Use TFTP to Back Up and Restore a Configuration
10.6.5 242 USB Ports on a Cisco Router
10.6.6 242 Use USB to Back Up and Restore a Configuration
10.6.7 243 Password Recovery Procedures
10.6.8 245 Password Recovery Example
10.6.9 245 Packet Tracer
Back Up Configuration Files
10.6.10 247 Lab
Use Tera Term to Manage Router Configuration Files
10.6.11 248 Lab
Use TFTP, Flash, and USB to Manage Configuration Files
10.6.12 248 Lab
Research Password Recovery Procedures
10.6.13 248 IOS Image Management
10.7 248 Video
Managing Cisco IOS Images
10.7.1 248 TFTP Servers as a Backup Location
10.7.2 248 Backup IOS Image to TFTP Server Example
10.7.3 249 Copy an IOS Image to a Device Example
10.7.4 250 The boot system Command
10.7.5 251 Packet Tracer
Use a TFTP Server to Upgrade a Cisco IOS Image
10.7.6 252 Module Practice and Quiz
10.8 253 Packet Tracer
Configure CDP, LLDP, and NTP
10.8.1 253 Lab
Configure CDP, LLDP, and NTP
10.8.2 253 What did I learn in this module?
10.8.3 253 Chapter Quiz
Network Management 257 Your Chapter Notes 257 Chapter 11 Network Design 259 Introduction
11.0 259 Why should I take this module?
11.0.1 259 What will I learn to do in this module?
11.0.2 259 Hierarchical Networks
11.1 259 Video
Three
Layer Network Design
11.1.1 259 The Need to Scale the Network
11.1.2 259 Borderless Switched Networks
11.1.3 260 Hierarchy in the Borderless Switched Network
11.1.4 261 Access, Distribution, and Core Layer Functions
11.1.5 262 Three
Tier and Two
Tier Examples
11.1.6 262 Role of Switched Networks
11.1.7 263 Check Your Understanding
Hierarchical Networks
11.1.8 263 Scalable Networks
11.2 263 Design for Scalability
11.2.1 263 Plan for Redundancy
11.2.2 264 Reduce Failure Domain Size
11.2.3 265 Increase Bandwidth
11.2.4 265 Expand the Access Layer
11.2.5 266 Tune Routing Protocols
11.2.6 266 Check Your Understanding
Scalable Networks
11.2.7 266 Switch Hardware
11.3 266 Switch Platforms
11.3.1 266 Switch Form Factors
11.3.2 267 Port Density
11.3.3 268 Forwarding Rates
11.3.4 268 Power over Ethernet
11.3.5 269 Multilayer Switching
11.3.6 269 Business Considerations for Switch Selection
11.3.7 270 Check Your Understanding
Switch Hardware
11.3.8 270 Router Hardware
11.4 270 Router Requirements
11.4.1 270 Cisco Routers
11.4.2 271 Router Form Factors
11.4.3 271 Check Your Understanding
Router Hardware
11.4.4 272 Module Practice and Quiz
11.5 272 Packet Tracer
Compare Layer 2 and Layer 3 Devices
11.5.1 272 What did I learn in this module?
11.5.2 273 Chapter Quiz
Network Design 275 Your Chapter Notes 275 Chapter 12 Network Troubleshooting 277 Introduction
12.0 277 Why should I take this module?
12.0.1 277 What will I learn to do in this module?
12.0.2 277 Network Documentation
12.1 277 Documentation Overview
12.1.1 277 Network Topology Diagrams
12.1.2 278 Network Device Documentation
12.1.3 279 Establish a Network Baseline
12.1.4 279 Step 1
Determine What Types of Data to Collect
12.1.5 280 Step 2
Identify Devices and Ports of Interest
12.1.6 280 Step 3
Determine the Baseline Duration
12.1.7 280 Data Measurement
12.1.8 281 Check Your Understanding
Network Documentation
12.1.9 282 Troubleshooting Process
12.2 282 General Troubleshooting Procedures
12.2.1 282 Seven
Step Troubleshooting Process
12.2.2 282 Question End Users
12.2.3 284 Gather Information
12.2.4 285 Troubleshooting with Layered Models
12.2.5 286 Structured Troubleshooting Methods
12.2.6 286 Guidelines for Selecting a Troubleshooting Method
12.2.7 288 Check Your Understanding
Troubleshooting Process
12.2.8 288 Troubleshooting Tools
12.3 288 Software Troubleshooting Tools
12.3.1 288 Protocol Analyzers
12.3.2 289 Hardware Troubleshooting Tools
12.3.3 289 Syslog Server as a Troubleshooting Tool
12.3.4 290 Check Your Understanding
Troubleshooting Tools
12.3.5 292 Symptoms and Causes of Network Problems
12.4 292 Physical Layer Troubleshooting
12.4.1 292 Data Link Layer Troubleshooting
12.4.2 294 Network Layer Troubleshooting
12.4.3 295 Transport Layer Troubleshooting
ACLs
12.4.4 297 Transport Layer Troubleshooting
NAT for IPv4
12.4.5 298 Application Layer Troubleshooting
12.4.6 299 Check Your Understanding
Symptoms and Causes of Network Problems
12.4.7 300 Troubleshooting IP Connectivity
12.5 300 Components of Troubleshooting End
to
End Connectivity
12.5.1 300 End
to
End Connectivity Problem Initiates Troubleshooting
12.5.2 301 Step 1
Verify the Physical Layer
12.5.3 303 Step 2
Check for Duplex Mismatches
12.5.4 304 Step 3
Verify Addressing on the Local Network
12.5.5 306 Step 4
Verify Default Gateway
12.5.7 310 Troubleshoot IPv6 Default Gateway Example
12.5.8 311 Step 5
Verify Correct Path
12.5.9 314 Step 6
Verify the Transport Layer
12.5.10 315 Step 7
Verify ACLs
12.5.11 317 Step 8
Verify DNS
12.5.12 318 Packet Tracer
Troubleshoot Enterprise Networks
12.5.13 319 Module Practice and Quiz
12.6 319 Packet Tracer
Troubleshooting Challenge
Document the Network
12.6.1 319 Packet Tracer
Troubleshooting Challenge
Use Documentation to Solve Issues
12.6.2 319 What did I learn in this module?
12.6.3 320 Chapter Quiz
Network Troubleshooting 324 Your Chapter Notes 324 Chapter 13 Network Virtualization 325 Introduction
13.0 325 Why should I take this module?
13.0.1 325 What will I learn to do in this module?
13.0.2 325 Cloud Computing
13.1 325 Video
Cloud and Virtualization
13.1.1 325 Cloud Overview
13.1.2 325 Cloud Services
13.1.3 326 Cloud Models
13.1.4 326 Cloud Computing versus Data Center
13.1.5 327 Check Your Understanding
Cloud Computing
13.1.6 327 Virtualization
13.2 327 Cloud Computing and Virtualization
13.2.1 327 Dedicated Servers
13.2.2 328 Server Virtualization
13.2.3 328 Advantages of Virtualization
13.2.4 328 Abstraction Layers
13.2.5 329 Type 2 Hypervisors
13.2.6 330 Check Your Understanding
Virtualization
13.2.7 330 Virtual Network Infrastructure
13.3 330 Type 1 Hypervisors
13.3.1 330 Installing a VM on a Hypervisor
13.3.2 330 The Complexity of Network Virtualization
13.3.3 331 Check Your Understanding
Virtual Network Infrastructure
13.3.4 332 Software
Defined Networking
13.4 332 Video
Software
Defined Networking
13.4.1 332 Control Plane and Data Plane
13.4.2 332 Network Virtualization Technologies
13.4.3 333 Traditional and SDN Architectures
13.4.4 334 Check Your Understanding
Software
Defined Networking
13.4.5 334 Controllers
13.5 334 SDN Controller and Operations
13.5.1 334 Video
Cisco ACI
13.5.2 335 Core Components of ACI
13.5.3 335 Spine
Leaf Topology
13.5.4 335 SDN Types
13.5.5 336 APIC
EM Features
13.5.6 336 APIC
EM Path Trace
13.5.7 336 Check Your Understanding
Controllers
13.5.8 337 Module Practice and Quiz
13.6 337 Lab
Install Linux in a Virtual Machine and Explore the GUI
13.6.1 337 What did I learn in this module?
13.6.2 337 Chapter Quiz
Network Virtualization 341 Your Chapter Notes 341 Chapter 14 Network Automation 343 Introduction
14.0 343 Why should I take this module?
14.0.1 343 What will I learn in this module?
14.0.2 343 Automation Overview
14.1 343 Video
Automation Everywhere
14.1.1 343 The Increase in Automation
14.1.2 344 Thinking Devices
14.1.3 344 Check Your Understanding
Benefits of Automation
14.1.4 344 Data Formats
14.2 344 Video
Data Formats
14.2.1 344 The Data Formats Concept
14.2.2 345 Data Format Rules
14.2.3 345 Compare Data Formats
14.2.4 346 JSON Data Format
14.2.5 347 JSON Syntax Rules
14.2.6 348 YAML Data Format
14.2.7 349 XML Data Format
14.
Area OSPFv2 Concepts 1 Introduction
1.0 1 Why should I take this module?
1.0.1 1 What will I learn to do in this module?
1.0.2 1 OSPF Features and Characteristics
1.1 1 Introduction to OSPF
1.1.1 1 Components of OSPF
1.1.2 2 Link
State Operation
1.1.3 3 Single
Area and Multiarea OSPF
1.1.4 4 Multiarea OSPF
1.1.5 4 OSPFv3
1.1.6 5 Check Your Understanding
OSPF Features and Characteristics
1.1.7 6 OSPF Packets
1.2 6 Video
OSPF Packets
1.2.1 6 Types of OSPF Packets
1.2.2 6 Link
State Updates
1.2.3 7 Hello Packet
1.2.4 7 Check Your Understanding
OSPF Packets
1.2.5 7 OSPF Operation
1.3 7 Video
OSPF Operation
1.3.1 7 OSPF Operational States
1.3.2 7 Establish Neighbor Adjacencies
1.3.3 8 Synchronizing OSPF Databases
1.3.4 9 The Need for a DR
1.3.5 10 LSA Flooding With a DR
1.3.6 11 Check Your Understanding
OPSF Operation
1.3.7 11 Module Practice and Quiz
1.4 11 What did I learn in this module?
1.4.1 11 Chapter Quiz
Single
Area OSPFv2 Concepts 14 Your Chapter Notes 14 Chapter 2 Single
Area OSPFv2 Configuration 15 Introduction
2.0 15 Why should I take this module?
2.0.1 15 What will I learn to do in this module?
2.0.2 15 OSPF Router ID
2.1 15 OSPF Reference Topology
2.1.1 15 Router Configuration Mode for OSPF
2.1.2 16 Router IDs
2.1.3 16 Router ID Order of Precedence
2.1.4 17 Configure a Loopback Interface as the Router ID
2.1.5 17 Explicitly Configure a Router ID
2.1.6 18 Modify a Router ID
2.1.7 18 Syntax Checker
Configure R2 and R3 Router IDs
2.1.8 19 Check Your Understanding
OSPF Router ID
2.1.9 19 Point
to
Point OSPF Networks
2.2 20 The network Command Syntax
2.2.1 20 The Wildcard Mask
2.2.2 20 Check Your Understanding
The Wildcard Masks
2.2.3 20 Configure OSPF Using the network Command
2.2.4 20 Syntax Checker
Configure R2 and R3 Using the network Command
2.2.5 21 Configure OSPF Using the ip ospf Command
2.2.6 21 Syntax Checker
Configure R2 and R3 Using the ip ospf Command
2.2.7 22 Passive Interface
2.2.8 22 Configure Passive Interfaces
2.2.9 23 Syntax Checker
Configure R2 and R3 Passive Interfaces
2.2.10 24 OSPF Point
to
Point Networks
2.2.11 24 Loopbacks and Point
to
Point Networks
2.2.12 26 Packet Tracer
Point
to
Point Single
Area OSPFv2 Configuration
2.2.13 26 Multiaccess OSPF Networks
2.3 27 OSPF Network Types
2.3.1 27 OSPF Designated Router
2.3.2 27 OSPF Multiaccess Reference Topology
2.3.3 27 Verify OSPF Router Roles
2.3.4 28 Verify DR/BDR Adjacencies
2.3.5 30 Default DR/BDR Election Process
2.3.6 32 DR Failure and Recovery
2.3.7 33 The ip ospf priority Command
2.3.8 33 Configure OSPF Priority
2.3.9 34 Syntax Checker
Configure OSPF Priority
2.3.10 35 Packet Tracer
Determine the DR and BDR
2.3.11 35 Modify Single
Area OSPFv2
2.4 36 Cisco OSPF Cost Metric
2.4.1 36 Adjust the Reference Bandwidth
2.4.2 36 OSPF Accumulates Costs
2.4.3 38 Manually Set OSPF Cost Value
2.4.4 38 Test Failover to Backup Route
2.4.5 39 Syntax Checker
Modify the Cost Values for R2 and R3
2.4.6 40 Hello Packet Intervals
2.4.7 40 Verify Hello and Dead Intervals
2.4.8 40 Modify OSPFv2 Intervals
2.4.9 42 Syntax Checker
Modifying Hello and Dead Intervals on R3
2.4.10 43 Packet Tracer
Modify Single
Area OSPFv2
2.4.11 43 Default Route Propagation
2.5 43 Propagate a Default Static Route in OSPFv2
2.5.1 43 Verify the Propagated Default Route
2.5.2 44 Packet Tracer
Propagate a Default Route in OSPFv2
2.5.3 46 Verify Single
Area OSPFv2
2.6 46 Verify OSPF Neighbors
2.6.1 46 Verify OSPF Protocol Settings
2.6.2 48 Verify OSPF Process Information
2.6.3 48 Verify OSPF Interface Settings
2.6.4 50 Syntax Checker
Verify Single
Area OSPFv2
2.6.5 51 Packet Tracer
Verify Single
Area OSPFv2
2.6.6 51 Module Practice and Quiz
2.7 51 Packet Tracer
Single
Area OSPFv2 Configuration
2.7.1 51 Lab
Single
Area OSPFv2 Configuration
2.7.2 51 What did I learn in this module?
2.7.3 52 Chapter Quiz
Single
Area OSPFv2 Configuration 56 Your Chapter Notes 56 Chapter 3 Network Security Concepts 57 Introduction
3.0 57 Why should I take this module?
3.0.1 57 What will I learn in this module?
3.0.2 57 Ethical Hacking Statement
3.0.3 57 Current State of Cybersecurity
3.1 58 Current State of Affairs
3.1.1 58 Vectors of Network Attacks
3.1.2 58 Data Loss
3.1.3 59 Check Your Understanding
Current State of Cybersecurity
3.1.4 60 Threat Actors
3.2 60 The Hacker
3.2.1 60 Evolution of Hackers
3.2.2 61 Cyber Criminals
3.2.3 61 Hacktivists
3.2.4 61 State
Sponsored Hackers
3.2.5 61 Check Your Understanding
Threat Actors
3.2.6 62 Threat Actor Tools
3.3 62 Video
Threat Actor Tools
3.3.1 62 Introduction to Attack Tools
3.3.2 62 Evolution of Security Tools
3.3.3 62 Attack Types
3.3.4 63 Check Your Understanding
Threat Actor Tools
3.3.5 64 Malware
3.4 64 Overview of Malware
3.4.1 64 Viruses and Trojan Horses
3.4.2 64 Other Types of Malware
3.4.3 65 Check Your Understanding
Malware
3.4.4 66 Common Network Attacks
3.5 66 Overview of Network Attacks
3.5.1 66 Video
Reconnaissance Attacks
3.5.2 67 Reconnaissance Attacks
3.5.3 67 Video
Access and Social Engineering Attacks
3.5.4 68 Access Attacks
3.5.5 68 Social Engineering Attacks
3.5.6 69 Lab
Social Engineering
3.5.7 70 Video
Denial of Service Attacks
3.5.8 70 DoS and DDoS Attacks
3.5.9 70 Check Your Understanding
Common Network Attacks
3.5.10 71 IP Vulnerabilities and Threats
3.6 71 Video
Common IP and ICMP Attacks
3.6.1 71 IPv4 and IPv6
3.6.2 71 ICMP Attacks
3.6.3 71 Video
Amplification, Reflection, and Spoofing Attacks
3.6.4 72 Amplification and Reflection Attacks
3.6.5 72 Address Spoofing Attacks
3.6.6 72 Check Your Understanding
IP Vulnerabilities and Threats
3.6.7 73 TCP and UDP Vulnerabilities
3.7 73 TCP Segment Header
3.7.1 73 TCP Services
3.7.2 73 TCP Attacks
3.7.3 74 UDP Segment Header and Operation
3.7.4 74 UDP Attacks
3.7.5 75 Check Your Understanding
TCP and UDP Vulnerabilities
3.7.6 75 IP Services
3.8 75 ARP Vulnerabilities
3.8.1 75 ARP Cache Poisoning
3.8.2 76 Video
ARP Spoofing
3.8.3 76 DNS Attacks
3.8.4 76 DNS Tunneling
3.8.5 78 DHCP
3.8.6 78 DHCP Attacks
3.8.7 78 Lab
Explore DNS Traffic
3.8.8 79 Network Security Best Practices
3.9 80 Confidentiality, Integrity, and Availability
3.9.1 80 The Defense
in
Depth Approach
3.9.2 80 Firewalls
3.9.3 80 IPS
3.9.4 81 Content Security Appliances
3.9.5 81 Check Your Understanding
Network Security Best Practices
3.9.6 82 Cryptography
3.10 82 Video
Cryptography
3.10.1 82 Securing Communications
3.10.2 82 Data Integrity
3.10.3 83 Hash Functions
3.10.4 83 Origin Authentication
3.10.5 84 Data Confidentiality
3.10.6 85 Symmetric Encryption
3.10.7 85 Asymmetric Encryption
3.10.8 86 Diffie
Hellman
3.10.9 87 Check Your Understanding
Cryptography
3.10.10 88 Module Practice and Quiz
3.11 88 What did I learn in this module?
3.11.1 88 Chapter Quiz
Network Security Concepts 91 Your Chapter Notes 91 Chapter 4 ACL Concepts 93 Introduction
4.0 93 Why should I take this module?
4.0.1 93 What will I learn to do in this module?
4.0.2 93 Purpose of ACLs
4.1 93 What is an ACL?
4.1.1 93 Packet Filtering
4.1.2 95 ACL Operation
4.1.3 95 Packet Tracer
ACL Demonstration
4.1.4 96 Check Your Understanding
Purpose of ACLs
4.1.5 96 Wildcard Masks in ACLs
4.2 96 Wildcard Mask Overview
4.2.1 96 Wildcard Mask Types
4.2.2 97 Wildcard Mask Calculation
4.2.3 97 Wildcard Mask Keywords
4.2.4 98 Check Your Understanding
Wildcard Masks in ACLs
4.2.5 99 Guidelines for ACL Creation
4.3 99 Limited Number of ACLs per Interface
4.3.1 99 ACL Best Practices
4.3.2 99 Check Your Understanding
Guidelines for ACL Creation
4.3.3 100 Types of IPv4 ACLs
4.4 100 Standard and Extended ACLs
4.4.1 100 Numbered and Named ACLs
4.4.2 101 Where to Place ACLs
4.4.3 102 Standard ACL Placement Example
4.4.4 102 Extended ACL Placement Example
4.4.5 103 Check Your Understanding
Guidelines for ACL Placement
4.4.6 103 Module Practice and Quiz
4.5 103 What did I learn in this module?
4.5.1 103 Chapter Quiz
ACL Concepts 106 Your Chapter Notes 106 Chapter 5 ACLs for IPv4 Configuration 107 Introduction
5.0 107 Why should I take this module?
5.0.1 107 What will I learn to do in this module?
5.0.2 107 Configure Standard IPv4 ACLs
5.1 107 Create an ACL
5.1.1 107 Numbered Standard IPv4 ACL Syntax
5.1.2 108 Named Standard IPv4 ACL Syntax
5.1.3 109 Apply a Standard IPv4 ACL
5.1.4 109 Numbered Standard IPv4 ACL Example
5.1.5 110 Named Standard IPv4 ACL Example
5.1.6 111 Syntax Check
Configure Standard IPv4 ACLs
5.1.7 112 Packet Tracer
Configure Numbered Standard IPv4 ACLs
5.1.8 113 Packet Tracer
Configure Named Standard IPv4 ACLs
5.1.9 113 Modify IPv4 ACLs
5.2 113 Two Methods to Modify an ACL
5.2.1 113 Text Editor Method
5.2.2 113 Sequence Numbers Method
5.2.3 114 Modify a Named ACL Example
5.2.4 115 ACL Statistics
5.2.5 116 Syntax Checker
Modify IPv4 ACLs
5.2.6 116 Packet Tracer
Configure and Modify Standard IPv4 ACLs
5.2.7 116 Secure VTY Ports with a Standard IPv4 ACL
5.3 116 The access
class Command
5.3.1 116 Secure VTY Access Example
5.3.2 117 Verify the VTY Port is Secured
5.3.3 118 Syntax Checker
Secure the VTY Ports
5.3.4 118 Configure Extended IPv4 ACLs
5.4 119 Extended ACLs
5.4.1 119 Numbered Extended IPv4 ACL Syntax
5.4.2 119 Protocols and Ports
5.4.3 120 Protocols and Port Numbers Configuration Examples
5.4.4 123 Apply a Numbered Extended IPv4 ACL
5.4.5 123 TCP Established Extended ACL
5.4.6 123 Named Extended IPv4 ACL Syntax
5.4.7 124 Named Extended IPv4 ACL Example
5.4.8 125 Edit Extended ACLs
5.4.9 126 Another Named Extended IPv4 ACL Example
5.4.10 127 Verify Extended ACLs
5.4.11 128 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 1
5.4.12 130 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 2
5.4.13 130 Module Practice and Quiz
5.5 130 Packet Tracer
IPv4 ACL Implementation Challenge
5.5.1 130 Lab
Configure and Verify Extended IPv4 ACLs
5.5.2 131 What did I learn in this module?
5.5.3 131 Chapter Quiz
ACLs for IPv4 Implementation 133 Your Chapter Notes 133 Chapter 6 NAT for IPv4 135 Introduction
6.0 135 Why should I take this module?
6.0.1 135 What will I learn to do in this module?
6.0.2 135 NAT Characteristics
6.1 135 IPv4 Private Address Space
6.1.1 135 What is NAT
6.1.2 136 How NAT Works
6.1.3 137 NAT Terminology
6.1.4 137 Check Your Understanding
NAT Characteristics
6.1.5 138 Types of NAT
6.2 139 Static NAT
6.2.1 139 Dynamic NAT
6.2.2 139 Port Address Translation
6.2.3 139 Next Available Port
6.2.4 140 NAT and PAT Comparison
6.2.5 140 Packets without a Layer 4 Segment
6.2.6 141 Packet Tracer
Investigate NAT Operations
6.2.7 141 NAT Advantages and Disadvantages
6.3 142 Advantages of NAT
6.3.1 142 Disadvantages of NAT
6.3.2 142 Check Your Understanding
NAT Advantages and Disadvantages
6.3.3 143 Static NAT
6.4 143 Static NAT Scenario
6.4.1 143 Configure Static NAT
6.4.2 143 Analyze Static NAT
6.4.3 144 Verify Static NAT
6.4.4 144 Packet Tracer
Configure Static NAT
6.4.5 145 Dynamic NAT
6.5 146 Dynamic NAT Scenario
6.5.1 146 Configure Dynamic NAT
6.5.2 146 Analyze Dynamic NAT
Inside to Outside
6.5.3 147 Analyze Dynamic NAT
Outside to Inside
6.5.4 147 Verify Dynamic NAT
6.5.5 148 Packet Tracer
Configure Dynamic NAT
6.5.6 150 PAT
6.6 150 PAT Scenario
6.6.1 150 Configure PAT to Use a Single IPv4 Address
6.6.2 150 Configure PAT to Use an Address Pool
6.6.3 151 Analyze PAT
PC to Server
6.6.4 151 Analyze PAT
Server to PC
6.6.5 151 Verify PAT
6.6.6 151 Packet Tracer
Configure PAT
6.6.7 152 NAT64
6.7 153 NAT for IPv6?
6.7.1 153 NAT64
6.7.2 153 Module Practice and Quiz
6.8 153 Packet Tracer
Configure NAT for IPv4
6.8.1 153 Lab
Configure NAT for IPv4
6.8.2 154 What did I learn in this module?
6.8.3 154 Chapter Quiz
NAT for IPv4 158 Your Chapter Notes 158 Chapter 7 WAN Concepts 159 Introduction
7.0 159 Why should I take this module?
7.0.1 159 What will I learn to do in this module?
7.0.2 159 Purpose of WANs
7.1 159 LANs and WANs
7.1.1 159 Private and Public WANs
7.1.2 160 WAN Topologies
7.1.3 160 Carrier Connections
7.1.4 162 Evolving Networks
7.1.5 162 Check Your Understanding
Purpose of WANs
7.1.6 164 WAN Operations
7.2 164 WAN Standards
7.2.1 164 WANs in the OSI Model
7.2.2 164 Common WAN Terminology
7.2.3 165 WAN Devices
7.2.4 166 Serial Communication
7.2.5 167 Circuit
Switched Communication
7.2.6 168 Packet
Switched Communications
7.2.7 168 SDH, SONET, and DWDM
7.2.8 169 Check Your Understanding
WAN Operations
7.2.9 169 Traditional WAN Connectivity
7.3 169 Traditional WAN Connectivity Options
7.3.1 169 Common WAN Terminology
7.3.2 169 Circuit
Switched Options
7.3.3 170 Packet
Switched Options
7.3.4 171 Check Your Understanding
Traditional WAN Connectivity
7.3.5 172 Modern WAN Connectivity
7.4 172 Modern WANs
7.4.1 172 Modern WAN Connectivity Options
7.4.2 172 Ethernet WAN
7.4.3 173 MPLS
7.4.4 174 Check Your Understanding
Modern WAN Connectivity
7.4.5 174 Internet
Based Connectivity
7.5 174 Internet
Based Connectivity Options
7.5.1 174 DSL Technology
7.5.2 175 DSL Connections
7.5.3 175 DSL and PPP
7.5.4 176 Cable Technology
7.5.5 176 Optical Fiber
7.5.6 177 Wireless Internet
Based Broadband
7.5.7 177 VPN Technology
7.5.8 179 ISP Connectivity Options
7.5.9 179 Broadband Solution Comparison
7.5.10 180 Lab
Research Broadband Internet Access Options
7.5.11 181 Module Practice and Quiz
7.6 181 Packet Tracer
WAN Concepts
7.6.1 181 What did I learn in this module?
7.6.2 181 Chapter Quiz
WAN Concepts 184 Your Chapter Notes 184 Chapter 8 VPN and IPsec Concepts 185 Introduction
8.0 185 Why should I take this module?
8.0.1 185 What will I learn in this module?
8.0.2 185 VPN Technology
8.1 185 Virtual Private Networks
8.1.1 185 VPN Benefits
8.1.2 186 Site
to
Site and Remote
Access VPNs
8.1.3 186 Enterprise and Service Provider VPNs
8.1.4 186 Check Your Understanding
VPN Technology
8.1.5 187 Types of VPNs
8.2 187 Remote
Access VPNs
8.2.1 187 SSL VPNs
8.2.2 187 Site
to
Site IPsec VPNs
8.2.3 188 GRE over IPsec
8.2.4 188 Dynamic Multipoint VPNs
8.2.5 189 IPsec Virtual Tunnel Interface
8.2.6 189 Service Provider MPLS VPNs
8.2.7 190 Check Your Understanding
Types of VPNs
8.2.8 190 IPsec
8.3 190 Video
IPsec Concepts
8.3.1 190 IPsec Technologies
8.3.2 190 IPsec Protocol Encapsulation
8.3.3 191 Confidentiality
8.3.4 192 Integrity
8.3.5 192 Authentication
8.3.6 192 Secure Key Exchange with Diffie
Hellman
8.3.7 193 Video
IPsec Transport and Tunnel Mode
8.3.8 193 Check Your Understanding
IPsec
8.3.9 193 Module Practice and Quiz
8.4 193 What did I learn in this module?
8.4.1 193 Chapter Quiz
VPN and IPsec Concepts 195 Your Chapter Notes 195 Chapter 9 QoS Concepts 197 Introduction
9.0 197 Why should I take this module?
9.0.1 197 What will I learn to do in this module?
9.0.2 197 Network Transmission Quality
9.1 197 Video Tutorial
The Purpose of QoS
9.1.1 197 Prioritizing Traffic
9.1.2 197 Bandwidth, Congestion, Delay, and Jitter
9.1.3 198 Packet Loss
9.1.4 199 Check Your Understanding
Network Transmission Quality
9.1.5 199 Traffic Characteristics
9.2 199 Video Tutorial
Traffic Characteristics
9.2.1 199 Network Traffic Trends
9.2.2 199 Voice
9.2.3 200 Video
9.2.4 200 Data
9.2.5 201 Check Your Understanding
Traffic Characteristics
9.2.6 202 Queuing Algorithms
9.3 202 Video Tutorial
QoS Algorithms
9.3.1 202 Queuing Overview
9.3.2 202 First In First Out
9.3.3 202 Weighted Fair Queuing (WFQ)
9.3.4 203 Class
Based Weighted Fair Queuing (CBWFQ)
9.3.5 203 Low Latency Queuing (LLQ)
9.3.6 204 Check Your Understanding
Queuing Algorithms
9.3.7 204 QoS Models
9.4 204 Video Tutorial
QoS Models
9.4.1 204 Selecting an Appropriate QoS Policy Model
9.4.2 204 Best Effort
9.4.3 205 Integrated Services
9.4.4 206 Differentiated Services
9.4.5 206 Check Your Understanding
QoS Models
9.4.6 208 QoS Implementation Techniques
9.5 208 Video Tutorial
QoS Implementation Techniques
9.5.1 208 Avoiding Packet Loss
9.5.2 208 QoS Tools
9.5.3 208 Classification and Marking
9.5.4 209 Marking at Layer 2
9.5.5 210 Marking at Layer 3
9.5.6 210 Type of Service and Traffic Class Field
9.5.7 211 DSCP Values
9.5.8 211 Class Selector Bits
9.5.9 211 Trust Boundaries
9.5.10 211 Congestion Avoidance
9.5.11 212 Shaping and Policing
9.5.12 212 QoS Policy Guidelines
9.5.13 213 Check Your Understanding
QoS Implementation Techniques
9.5.14 213 Module Practice and Quiz
9.6 213 What did I learn in this module?
9.6.1 213 Chapter Quiz
QoS Concepts 216 Your Chapter Notes 216 Chapter 10 Network Management 217 Introduction
10.0 217 Why should I take this module?
10.0.1 217 What will I learn to do in this module?
10.0.2 217 Device Discovery with CDP
10.1 217 CDP Overview
10.1.1 217 Configure and Verify CDP
10.1.2 218 Discover Devices by Using CDP
10.1.3 220 Syntax Checker
Configure and Verify CDP
10.1.4 222 Packet Tracer
Use CDP to Map a Network
10.1.5 222 Device Discovery with LLDP
10.2 222 LLDP Overview
10.2.1 222 Configure and Verify LLDP
10.2.2 222 Discover Devices by Using LLDP
10.2.3 223 Syntax Checker
Configure and Verify LLDP
10.2.4 225 Check Your Understanding
Compare CDP and LLDP
10.2.5 225 Packet Tracer
Use LLDP to Map a Network
10.2.6 225 NTP
10.3 225 Time and Calendar Services
10.3.1 225 NTP Operation
10.3.2 226 Configure and Verify NTP
10.3.3 227 Packet Tracer
Configure and Verify NTP
10.3.4 229 SNMP
10.4 229 Introduction to SNMP
10.4.1 229 SNMP Operation
10.4.2 230 SNMP Agent Traps
10.4.3 230 SNMP Versions
10.4.4 231 Check Your Understanding
SNMP Versions
10.4.5 232 Community Strings
10.4.6 232 MIB Object ID
10.4.7 233 SNMP Polling Scenario
10.4.8 233 SNMP Object Navigator
10.4.9 233 Lab
Research Network Monitoring Software
10.4.10 234 Syslog
10.5 234 Introduction to Syslog
10.5.1 234 Syslog Operation
10.5.2 234 Syslog Message Format
10.5.3 235 Syslog Facilities
10.5.4 236 Configure Syslog Timestamp
10.5.5 236 Check Your Understanding
Syslog Operation
10.5.6 237 Router and Switch File Maintenance
10.6 237 Router File Systems
10.6.1 237 Switch File Systems
10.6.2 240 Use a Text File to Back Up a Configuration
10.6.3 241 Use a Text File to Restore a Configuration
10.6.4 241 Use TFTP to Back Up and Restore a Configuration
10.6.5 242 USB Ports on a Cisco Router
10.6.6 242 Use USB to Back Up and Restore a Configuration
10.6.7 243 Password Recovery Procedures
10.6.8 245 Password Recovery Example
10.6.9 245 Packet Tracer
Back Up Configuration Files
10.6.10 247 Lab
Use Tera Term to Manage Router Configuration Files
10.6.11 248 Lab
Use TFTP, Flash, and USB to Manage Configuration Files
10.6.12 248 Lab
Research Password Recovery Procedures
10.6.13 248 IOS Image Management
10.7 248 Video
Managing Cisco IOS Images
10.7.1 248 TFTP Servers as a Backup Location
10.7.2 248 Backup IOS Image to TFTP Server Example
10.7.3 249 Copy an IOS Image to a Device Example
10.7.4 250 The boot system Command
10.7.5 251 Packet Tracer
Use a TFTP Server to Upgrade a Cisco IOS Image
10.7.6 252 Module Practice and Quiz
10.8 253 Packet Tracer
Configure CDP, LLDP, and NTP
10.8.1 253 Lab
Configure CDP, LLDP, and NTP
10.8.2 253 What did I learn in this module?
10.8.3 253 Chapter Quiz
Network Management 257 Your Chapter Notes 257 Chapter 11 Network Design 259 Introduction
11.0 259 Why should I take this module?
11.0.1 259 What will I learn to do in this module?
11.0.2 259 Hierarchical Networks
11.1 259 Video
Three
Layer Network Design
11.1.1 259 The Need to Scale the Network
11.1.2 259 Borderless Switched Networks
11.1.3 260 Hierarchy in the Borderless Switched Network
11.1.4 261 Access, Distribution, and Core Layer Functions
11.1.5 262 Three
Tier and Two
Tier Examples
11.1.6 262 Role of Switched Networks
11.1.7 263 Check Your Understanding
Hierarchical Networks
11.1.8 263 Scalable Networks
11.2 263 Design for Scalability
11.2.1 263 Plan for Redundancy
11.2.2 264 Reduce Failure Domain Size
11.2.3 265 Increase Bandwidth
11.2.4 265 Expand the Access Layer
11.2.5 266 Tune Routing Protocols
11.2.6 266 Check Your Understanding
Scalable Networks
11.2.7 266 Switch Hardware
11.3 266 Switch Platforms
11.3.1 266 Switch Form Factors
11.3.2 267 Port Density
11.3.3 268 Forwarding Rates
11.3.4 268 Power over Ethernet
11.3.5 269 Multilayer Switching
11.3.6 269 Business Considerations for Switch Selection
11.3.7 270 Check Your Understanding
Switch Hardware
11.3.8 270 Router Hardware
11.4 270 Router Requirements
11.4.1 270 Cisco Routers
11.4.2 271 Router Form Factors
11.4.3 271 Check Your Understanding
Router Hardware
11.4.4 272 Module Practice and Quiz
11.5 272 Packet Tracer
Compare Layer 2 and Layer 3 Devices
11.5.1 272 What did I learn in this module?
11.5.2 273 Chapter Quiz
Network Design 275 Your Chapter Notes 275 Chapter 12 Network Troubleshooting 277 Introduction
12.0 277 Why should I take this module?
12.0.1 277 What will I learn to do in this module?
12.0.2 277 Network Documentation
12.1 277 Documentation Overview
12.1.1 277 Network Topology Diagrams
12.1.2 278 Network Device Documentation
12.1.3 279 Establish a Network Baseline
12.1.4 279 Step 1
Determine What Types of Data to Collect
12.1.5 280 Step 2
Identify Devices and Ports of Interest
12.1.6 280 Step 3
Determine the Baseline Duration
12.1.7 280 Data Measurement
12.1.8 281 Check Your Understanding
Network Documentation
12.1.9 282 Troubleshooting Process
12.2 282 General Troubleshooting Procedures
12.2.1 282 Seven
Step Troubleshooting Process
12.2.2 282 Question End Users
12.2.3 284 Gather Information
12.2.4 285 Troubleshooting with Layered Models
12.2.5 286 Structured Troubleshooting Methods
12.2.6 286 Guidelines for Selecting a Troubleshooting Method
12.2.7 288 Check Your Understanding
Troubleshooting Process
12.2.8 288 Troubleshooting Tools
12.3 288 Software Troubleshooting Tools
12.3.1 288 Protocol Analyzers
12.3.2 289 Hardware Troubleshooting Tools
12.3.3 289 Syslog Server as a Troubleshooting Tool
12.3.4 290 Check Your Understanding
Troubleshooting Tools
12.3.5 292 Symptoms and Causes of Network Problems
12.4 292 Physical Layer Troubleshooting
12.4.1 292 Data Link Layer Troubleshooting
12.4.2 294 Network Layer Troubleshooting
12.4.3 295 Transport Layer Troubleshooting
ACLs
12.4.4 297 Transport Layer Troubleshooting
NAT for IPv4
12.4.5 298 Application Layer Troubleshooting
12.4.6 299 Check Your Understanding
Symptoms and Causes of Network Problems
12.4.7 300 Troubleshooting IP Connectivity
12.5 300 Components of Troubleshooting End
to
End Connectivity
12.5.1 300 End
to
End Connectivity Problem Initiates Troubleshooting
12.5.2 301 Step 1
Verify the Physical Layer
12.5.3 303 Step 2
Check for Duplex Mismatches
12.5.4 304 Step 3
Verify Addressing on the Local Network
12.5.5 306 Step 4
Verify Default Gateway
12.5.7 310 Troubleshoot IPv6 Default Gateway Example
12.5.8 311 Step 5
Verify Correct Path
12.5.9 314 Step 6
Verify the Transport Layer
12.5.10 315 Step 7
Verify ACLs
12.5.11 317 Step 8
Verify DNS
12.5.12 318 Packet Tracer
Troubleshoot Enterprise Networks
12.5.13 319 Module Practice and Quiz
12.6 319 Packet Tracer
Troubleshooting Challenge
Document the Network
12.6.1 319 Packet Tracer
Troubleshooting Challenge
Use Documentation to Solve Issues
12.6.2 319 What did I learn in this module?
12.6.3 320 Chapter Quiz
Network Troubleshooting 324 Your Chapter Notes 324 Chapter 13 Network Virtualization 325 Introduction
13.0 325 Why should I take this module?
13.0.1 325 What will I learn to do in this module?
13.0.2 325 Cloud Computing
13.1 325 Video
Cloud and Virtualization
13.1.1 325 Cloud Overview
13.1.2 325 Cloud Services
13.1.3 326 Cloud Models
13.1.4 326 Cloud Computing versus Data Center
13.1.5 327 Check Your Understanding
Cloud Computing
13.1.6 327 Virtualization
13.2 327 Cloud Computing and Virtualization
13.2.1 327 Dedicated Servers
13.2.2 328 Server Virtualization
13.2.3 328 Advantages of Virtualization
13.2.4 328 Abstraction Layers
13.2.5 329 Type 2 Hypervisors
13.2.6 330 Check Your Understanding
Virtualization
13.2.7 330 Virtual Network Infrastructure
13.3 330 Type 1 Hypervisors
13.3.1 330 Installing a VM on a Hypervisor
13.3.2 330 The Complexity of Network Virtualization
13.3.3 331 Check Your Understanding
Virtual Network Infrastructure
13.3.4 332 Software
Defined Networking
13.4 332 Video
Software
Defined Networking
13.4.1 332 Control Plane and Data Plane
13.4.2 332 Network Virtualization Technologies
13.4.3 333 Traditional and SDN Architectures
13.4.4 334 Check Your Understanding
Software
Defined Networking
13.4.5 334 Controllers
13.5 334 SDN Controller and Operations
13.5.1 334 Video
Cisco ACI
13.5.2 335 Core Components of ACI
13.5.3 335 Spine
Leaf Topology
13.5.4 335 SDN Types
13.5.5 336 APIC
EM Features
13.5.6 336 APIC
EM Path Trace
13.5.7 336 Check Your Understanding
Controllers
13.5.8 337 Module Practice and Quiz
13.6 337 Lab
Install Linux in a Virtual Machine and Explore the GUI
13.6.1 337 What did I learn in this module?
13.6.2 337 Chapter Quiz
Network Virtualization 341 Your Chapter Notes 341 Chapter 14 Network Automation 343 Introduction
14.0 343 Why should I take this module?
14.0.1 343 What will I learn in this module?
14.0.2 343 Automation Overview
14.1 343 Video
Automation Everywhere
14.1.1 343 The Increase in Automation
14.1.2 344 Thinking Devices
14.1.3 344 Check Your Understanding
Benefits of Automation
14.1.4 344 Data Formats
14.2 344 Video
Data Formats
14.2.1 344 The Data Formats Concept
14.2.2 345 Data Format Rules
14.2.3 345 Compare Data Formats
14.2.4 346 JSON Data Format
14.2.5 347 JSON Syntax Rules
14.2.6 348 YAML Data Format
14.2.7 349 XML Data Format
14.
Introduction xxx Chapter 1 Single
Area OSPFv2 Concepts 1 Introduction
1.0 1 Why should I take this module?
1.0.1 1 What will I learn to do in this module?
1.0.2 1 OSPF Features and Characteristics
1.1 1 Introduction to OSPF
1.1.1 1 Components of OSPF
1.1.2 2 Link
State Operation
1.1.3 3 Single
Area and Multiarea OSPF
1.1.4 4 Multiarea OSPF
1.1.5 4 OSPFv3
1.1.6 5 Check Your Understanding
OSPF Features and Characteristics
1.1.7 6 OSPF Packets
1.2 6 Video
OSPF Packets
1.2.1 6 Types of OSPF Packets
1.2.2 6 Link
State Updates
1.2.3 7 Hello Packet
1.2.4 7 Check Your Understanding
OSPF Packets
1.2.5 7 OSPF Operation
1.3 7 Video
OSPF Operation
1.3.1 7 OSPF Operational States
1.3.2 7 Establish Neighbor Adjacencies
1.3.3 8 Synchronizing OSPF Databases
1.3.4 9 The Need for a DR
1.3.5 10 LSA Flooding With a DR
1.3.6 11 Check Your Understanding
OPSF Operation
1.3.7 11 Module Practice and Quiz
1.4 11 What did I learn in this module?
1.4.1 11 Chapter Quiz
Single
Area OSPFv2 Concepts 14 Your Chapter Notes 14 Chapter 2 Single
Area OSPFv2 Configuration 15 Introduction
2.0 15 Why should I take this module?
2.0.1 15 What will I learn to do in this module?
2.0.2 15 OSPF Router ID
2.1 15 OSPF Reference Topology
2.1.1 15 Router Configuration Mode for OSPF
2.1.2 16 Router IDs
2.1.3 16 Router ID Order of Precedence
2.1.4 17 Configure a Loopback Interface as the Router ID
2.1.5 17 Explicitly Configure a Router ID
2.1.6 18 Modify a Router ID
2.1.7 18 Syntax Checker
Configure R2 and R3 Router IDs
2.1.8 19 Check Your Understanding
OSPF Router ID
2.1.9 19 Point
to
Point OSPF Networks
2.2 20 The network Command Syntax
2.2.1 20 The Wildcard Mask
2.2.2 20 Check Your Understanding
The Wildcard Masks
2.2.3 20 Configure OSPF Using the network Command
2.2.4 20 Syntax Checker
Configure R2 and R3 Using the network Command
2.2.5 21 Configure OSPF Using the ip ospf Command
2.2.6 21 Syntax Checker
Configure R2 and R3 Using the ip ospf Command
2.2.7 22 Passive Interface
2.2.8 22 Configure Passive Interfaces
2.2.9 23 Syntax Checker
Configure R2 and R3 Passive Interfaces
2.2.10 24 OSPF Point
to
Point Networks
2.2.11 24 Loopbacks and Point
to
Point Networks
2.2.12 26 Packet Tracer
Point
to
Point Single
Area OSPFv2 Configuration
2.2.13 26 Multiaccess OSPF Networks
2.3 27 OSPF Network Types
2.3.1 27 OSPF Designated Router
2.3.2 27 OSPF Multiaccess Reference Topology
2.3.3 27 Verify OSPF Router Roles
2.3.4 28 Verify DR/BDR Adjacencies
2.3.5 30 Default DR/BDR Election Process
2.3.6 32 DR Failure and Recovery
2.3.7 33 The ip ospf priority Command
2.3.8 33 Configure OSPF Priority
2.3.9 34 Syntax Checker
Configure OSPF Priority
2.3.10 35 Packet Tracer
Determine the DR and BDR
2.3.11 35 Modify Single
Area OSPFv2
2.4 36 Cisco OSPF Cost Metric
2.4.1 36 Adjust the Reference Bandwidth
2.4.2 36 OSPF Accumulates Costs
2.4.3 38 Manually Set OSPF Cost Value
2.4.4 38 Test Failover to Backup Route
2.4.5 39 Syntax Checker
Modify the Cost Values for R2 and R3
2.4.6 40 Hello Packet Intervals
2.4.7 40 Verify Hello and Dead Intervals
2.4.8 40 Modify OSPFv2 Intervals
2.4.9 42 Syntax Checker
Modifying Hello and Dead Intervals on R3
2.4.10 43 Packet Tracer
Modify Single
Area OSPFv2
2.4.11 43 Default Route Propagation
2.5 43 Propagate a Default Static Route in OSPFv2
2.5.1 43 Verify the Propagated Default Route
2.5.2 44 Packet Tracer
Propagate a Default Route in OSPFv2
2.5.3 46 Verify Single
Area OSPFv2
2.6 46 Verify OSPF Neighbors
2.6.1 46 Verify OSPF Protocol Settings
2.6.2 48 Verify OSPF Process Information
2.6.3 48 Verify OSPF Interface Settings
2.6.4 50 Syntax Checker
Verify Single
Area OSPFv2
2.6.5 51 Packet Tracer
Verify Single
Area OSPFv2
2.6.6 51 Module Practice and Quiz
2.7 51 Packet Tracer
Single
Area OSPFv2 Configuration
2.7.1 51 Lab
Single
Area OSPFv2 Configuration
2.7.2 51 What did I learn in this module?
2.7.3 52 Chapter Quiz
Single
Area OSPFv2 Configuration 56 Your Chapter Notes 56 Chapter 3 Network Security Concepts 57 Introduction
3.0 57 Why should I take this module?
3.0.1 57 What will I learn in this module?
3.0.2 57 Ethical Hacking Statement
3.0.3 57 Current State of Cybersecurity
3.1 58 Current State of Affairs
3.1.1 58 Vectors of Network Attacks
3.1.2 58 Data Loss
3.1.3 59 Check Your Understanding
Current State of Cybersecurity
3.1.4 60 Threat Actors
3.2 60 The Hacker
3.2.1 60 Evolution of Hackers
3.2.2 61 Cyber Criminals
3.2.3 61 Hacktivists
3.2.4 61 State
Sponsored Hackers
3.2.5 61 Check Your Understanding
Threat Actors
3.2.6 62 Threat Actor Tools
3.3 62 Video
Threat Actor Tools
3.3.1 62 Introduction to Attack Tools
3.3.2 62 Evolution of Security Tools
3.3.3 62 Attack Types
3.3.4 63 Check Your Understanding
Threat Actor Tools
3.3.5 64 Malware
3.4 64 Overview of Malware
3.4.1 64 Viruses and Trojan Horses
3.4.2 64 Other Types of Malware
3.4.3 65 Check Your Understanding
Malware
3.4.4 66 Common Network Attacks
3.5 66 Overview of Network Attacks
3.5.1 66 Video
Reconnaissance Attacks
3.5.2 67 Reconnaissance Attacks
3.5.3 67 Video
Access and Social Engineering Attacks
3.5.4 68 Access Attacks
3.5.5 68 Social Engineering Attacks
3.5.6 69 Lab
Social Engineering
3.5.7 70 Video
Denial of Service Attacks
3.5.8 70 DoS and DDoS Attacks
3.5.9 70 Check Your Understanding
Common Network Attacks
3.5.10 71 IP Vulnerabilities and Threats
3.6 71 Video
Common IP and ICMP Attacks
3.6.1 71 IPv4 and IPv6
3.6.2 71 ICMP Attacks
3.6.3 71 Video
Amplification, Reflection, and Spoofing Attacks
3.6.4 72 Amplification and Reflection Attacks
3.6.5 72 Address Spoofing Attacks
3.6.6 72 Check Your Understanding
IP Vulnerabilities and Threats
3.6.7 73 TCP and UDP Vulnerabilities
3.7 73 TCP Segment Header
3.7.1 73 TCP Services
3.7.2 73 TCP Attacks
3.7.3 74 UDP Segment Header and Operation
3.7.4 74 UDP Attacks
3.7.5 75 Check Your Understanding
TCP and UDP Vulnerabilities
3.7.6 75 IP Services
3.8 75 ARP Vulnerabilities
3.8.1 75 ARP Cache Poisoning
3.8.2 76 Video
ARP Spoofing
3.8.3 76 DNS Attacks
3.8.4 76 DNS Tunneling
3.8.5 78 DHCP
3.8.6 78 DHCP Attacks
3.8.7 78 Lab
Explore DNS Traffic
3.8.8 79 Network Security Best Practices
3.9 80 Confidentiality, Integrity, and Availability
3.9.1 80 The Defense
in
Depth Approach
3.9.2 80 Firewalls
3.9.3 80 IPS
3.9.4 81 Content Security Appliances
3.9.5 81 Check Your Understanding
Network Security Best Practices
3.9.6 82 Cryptography
3.10 82 Video
Cryptography
3.10.1 82 Securing Communications
3.10.2 82 Data Integrity
3.10.3 83 Hash Functions
3.10.4 83 Origin Authentication
3.10.5 84 Data Confidentiality
3.10.6 85 Symmetric Encryption
3.10.7 85 Asymmetric Encryption
3.10.8 86 Diffie
Hellman
3.10.9 87 Check Your Understanding
Cryptography
3.10.10 88 Module Practice and Quiz
3.11 88 What did I learn in this module?
3.11.1 88 Chapter Quiz
Network Security Concepts 91 Your Chapter Notes 91 Chapter 4 ACL Concepts 93 Introduction
4.0 93 Why should I take this module?
4.0.1 93 What will I learn to do in this module?
4.0.2 93 Purpose of ACLs
4.1 93 What is an ACL?
4.1.1 93 Packet Filtering
4.1.2 95 ACL Operation
4.1.3 95 Packet Tracer
ACL Demonstration
4.1.4 96 Check Your Understanding
Purpose of ACLs
4.1.5 96 Wildcard Masks in ACLs
4.2 96 Wildcard Mask Overview
4.2.1 96 Wildcard Mask Types
4.2.2 97 Wildcard Mask Calculation
4.2.3 97 Wildcard Mask Keywords
4.2.4 98 Check Your Understanding
Wildcard Masks in ACLs
4.2.5 99 Guidelines for ACL Creation
4.3 99 Limited Number of ACLs per Interface
4.3.1 99 ACL Best Practices
4.3.2 99 Check Your Understanding
Guidelines for ACL Creation
4.3.3 100 Types of IPv4 ACLs
4.4 100 Standard and Extended ACLs
4.4.1 100 Numbered and Named ACLs
4.4.2 101 Where to Place ACLs
4.4.3 102 Standard ACL Placement Example
4.4.4 102 Extended ACL Placement Example
4.4.5 103 Check Your Understanding
Guidelines for ACL Placement
4.4.6 103 Module Practice and Quiz
4.5 103 What did I learn in this module?
4.5.1 103 Chapter Quiz
ACL Concepts 106 Your Chapter Notes 106 Chapter 5 ACLs for IPv4 Configuration 107 Introduction
5.0 107 Why should I take this module?
5.0.1 107 What will I learn to do in this module?
5.0.2 107 Configure Standard IPv4 ACLs
5.1 107 Create an ACL
5.1.1 107 Numbered Standard IPv4 ACL Syntax
5.1.2 108 Named Standard IPv4 ACL Syntax
5.1.3 109 Apply a Standard IPv4 ACL
5.1.4 109 Numbered Standard IPv4 ACL Example
5.1.5 110 Named Standard IPv4 ACL Example
5.1.6 111 Syntax Check
Configure Standard IPv4 ACLs
5.1.7 112 Packet Tracer
Configure Numbered Standard IPv4 ACLs
5.1.8 113 Packet Tracer
Configure Named Standard IPv4 ACLs
5.1.9 113 Modify IPv4 ACLs
5.2 113 Two Methods to Modify an ACL
5.2.1 113 Text Editor Method
5.2.2 113 Sequence Numbers Method
5.2.3 114 Modify a Named ACL Example
5.2.4 115 ACL Statistics
5.2.5 116 Syntax Checker
Modify IPv4 ACLs
5.2.6 116 Packet Tracer
Configure and Modify Standard IPv4 ACLs
5.2.7 116 Secure VTY Ports with a Standard IPv4 ACL
5.3 116 The access
class Command
5.3.1 116 Secure VTY Access Example
5.3.2 117 Verify the VTY Port is Secured
5.3.3 118 Syntax Checker
Secure the VTY Ports
5.3.4 118 Configure Extended IPv4 ACLs
5.4 119 Extended ACLs
5.4.1 119 Numbered Extended IPv4 ACL Syntax
5.4.2 119 Protocols and Ports
5.4.3 120 Protocols and Port Numbers Configuration Examples
5.4.4 123 Apply a Numbered Extended IPv4 ACL
5.4.5 123 TCP Established Extended ACL
5.4.6 123 Named Extended IPv4 ACL Syntax
5.4.7 124 Named Extended IPv4 ACL Example
5.4.8 125 Edit Extended ACLs
5.4.9 126 Another Named Extended IPv4 ACL Example
5.4.10 127 Verify Extended ACLs
5.4.11 128 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 1
5.4.12 130 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 2
5.4.13 130 Module Practice and Quiz
5.5 130 Packet Tracer
IPv4 ACL Implementation Challenge
5.5.1 130 Lab
Configure and Verify Extended IPv4 ACLs
5.5.2 131 What did I learn in this module?
5.5.3 131 Chapter Quiz
ACLs for IPv4 Implementation 133 Your Chapter Notes 133 Chapter 6 NAT for IPv4 135 Introduction
6.0 135 Why should I take this module?
6.0.1 135 What will I learn to do in this module?
6.0.2 135 NAT Characteristics
6.1 135 IPv4 Private Address Space
6.1.1 135 What is NAT
6.1.2 136 How NAT Works
6.1.3 137 NAT Terminology
6.1.4 137 Check Your Understanding
NAT Characteristics
6.1.5 138 Types of NAT
6.2 139 Static NAT
6.2.1 139 Dynamic NAT
6.2.2 139 Port Address Translation
6.2.3 139 Next Available Port
6.2.4 140 NAT and PAT Comparison
6.2.5 140 Packets without a Layer 4 Segment
6.2.6 141 Packet Tracer
Investigate NAT Operations
6.2.7 141 NAT Advantages and Disadvantages
6.3 142 Advantages of NAT
6.3.1 142 Disadvantages of NAT
6.3.2 142 Check Your Understanding
NAT Advantages and Disadvantages
6.3.3 143 Static NAT
6.4 143 Static NAT Scenario
6.4.1 143 Configure Static NAT
6.4.2 143 Analyze Static NAT
6.4.3 144 Verify Static NAT
6.4.4 144 Packet Tracer
Configure Static NAT
6.4.5 145 Dynamic NAT
6.5 146 Dynamic NAT Scenario
6.5.1 146 Configure Dynamic NAT
6.5.2 146 Analyze Dynamic NAT
Inside to Outside
6.5.3 147 Analyze Dynamic NAT
Outside to Inside
6.5.4 147 Verify Dynamic NAT
6.5.5 148 Packet Tracer
Configure Dynamic NAT
6.5.6 150 PAT
6.6 150 PAT Scenario
6.6.1 150 Configure PAT to Use a Single IPv4 Address
6.6.2 150 Configure PAT to Use an Address Pool
6.6.3 151 Analyze PAT
PC to Server
6.6.4 151 Analyze PAT
Server to PC
6.6.5 151 Verify PAT
6.6.6 151 Packet Tracer
Configure PAT
6.6.7 152 NAT64
6.7 153 NAT for IPv6?
6.7.1 153 NAT64
6.7.2 153 Module Practice and Quiz
6.8 153 Packet Tracer
Configure NAT for IPv4
6.8.1 153 Lab
Configure NAT for IPv4
6.8.2 154 What did I learn in this module?
6.8.3 154 Chapter Quiz
NAT for IPv4 158 Your Chapter Notes 158 Chapter 7 WAN Concepts 159 Introduction
7.0 159 Why should I take this module?
7.0.1 159 What will I learn to do in this module?
7.0.2 159 Purpose of WANs
7.1 159 LANs and WANs
7.1.1 159 Private and Public WANs
7.1.2 160 WAN Topologies
7.1.3 160 Carrier Connections
7.1.4 162 Evolving Networks
7.1.5 162 Check Your Understanding
Purpose of WANs
7.1.6 164 WAN Operations
7.2 164 WAN Standards
7.2.1 164 WANs in the OSI Model
7.2.2 164 Common WAN Terminology
7.2.3 165 WAN Devices
7.2.4 166 Serial Communication
7.2.5 167 Circuit
Switched Communication
7.2.6 168 Packet
Switched Communications
7.2.7 168 SDH, SONET, and DWDM
7.2.8 169 Check Your Understanding
WAN Operations
7.2.9 169 Traditional WAN Connectivity
7.3 169 Traditional WAN Connectivity Options
7.3.1 169 Common WAN Terminology
7.3.2 169 Circuit
Switched Options
7.3.3 170 Packet
Switched Options
7.3.4 171 Check Your Understanding
Traditional WAN Connectivity
7.3.5 172 Modern WAN Connectivity
7.4 172 Modern WANs
7.4.1 172 Modern WAN Connectivity Options
7.4.2 172 Ethernet WAN
7.4.3 173 MPLS
7.4.4 174 Check Your Understanding
Modern WAN Connectivity
7.4.5 174 Internet
Based Connectivity
7.5 174 Internet
Based Connectivity Options
7.5.1 174 DSL Technology
7.5.2 175 DSL Connections
7.5.3 175 DSL and PPP
7.5.4 176 Cable Technology
7.5.5 176 Optical Fiber
7.5.6 177 Wireless Internet
Based Broadband
7.5.7 177 VPN Technology
7.5.8 179 ISP Connectivity Options
7.5.9 179 Broadband Solution Comparison
7.5.10 180 Lab
Research Broadband Internet Access Options
7.5.11 181 Module Practice and Quiz
7.6 181 Packet Tracer
WAN Concepts
7.6.1 181 What did I learn in this module?
7.6.2 181 Chapter Quiz
WAN Concepts 184 Your Chapter Notes 184 Chapter 8 VPN and IPsec Concepts 185 Introduction
8.0 185 Why should I take this module?
8.0.1 185 What will I learn in this module?
8.0.2 185 VPN Technology
8.1 185 Virtual Private Networks
8.1.1 185 VPN Benefits
8.1.2 186 Site
to
Site and Remote
Access VPNs
8.1.3 186 Enterprise and Service Provider VPNs
8.1.4 186 Check Your Understanding
VPN Technology
8.1.5 187 Types of VPNs
8.2 187 Remote
Access VPNs
8.2.1 187 SSL VPNs
8.2.2 187 Site
to
Site IPsec VPNs
8.2.3 188 GRE over IPsec
8.2.4 188 Dynamic Multipoint VPNs
8.2.5 189 IPsec Virtual Tunnel Interface
8.2.6 189 Service Provider MPLS VPNs
8.2.7 190 Check Your Understanding
Types of VPNs
8.2.8 190 IPsec
8.3 190 Video
IPsec Concepts
8.3.1 190 IPsec Technologies
8.3.2 190 IPsec Protocol Encapsulation
8.3.3 191 Confidentiality
8.3.4 192 Integrity
8.3.5 192 Authentication
8.3.6 192 Secure Key Exchange with Diffie
Hellman
8.3.7 193 Video
IPsec Transport and Tunnel Mode
8.3.8 193 Check Your Understanding
IPsec
8.3.9 193 Module Practice and Quiz
8.4 193 What did I learn in this module?
8.4.1 193 Chapter Quiz
VPN and IPsec Concepts 195 Your Chapter Notes 195 Chapter 9 QoS Concepts 197 Introduction
9.0 197 Why should I take this module?
9.0.1 197 What will I learn to do in this module?
9.0.2 197 Network Transmission Quality
9.1 197 Video Tutorial
The Purpose of QoS
9.1.1 197 Prioritizing Traffic
9.1.2 197 Bandwidth, Congestion, Delay, and Jitter
9.1.3 198 Packet Loss
9.1.4 199 Check Your Understanding
Network Transmission Quality
9.1.5 199 Traffic Characteristics
9.2 199 Video Tutorial
Traffic Characteristics
9.2.1 199 Network Traffic Trends
9.2.2 199 Voice
9.2.3 200 Video
9.2.4 200 Data
9.2.5 201 Check Your Understanding
Traffic Characteristics
9.2.6 202 Queuing Algorithms
9.3 202 Video Tutorial
QoS Algorithms
9.3.1 202 Queuing Overview
9.3.2 202 First In First Out
9.3.3 202 Weighted Fair Queuing (WFQ)
9.3.4 203 Class
Based Weighted Fair Queuing (CBWFQ)
9.3.5 203 Low Latency Queuing (LLQ)
9.3.6 204 Check Your Understanding
Queuing Algorithms
9.3.7 204 QoS Models
9.4 204 Video Tutorial
QoS Models
9.4.1 204 Selecting an Appropriate QoS Policy Model
9.4.2 204 Best Effort
9.4.3 205 Integrated Services
9.4.4 206 Differentiated Services
9.4.5 206 Check Your Understanding
QoS Models
9.4.6 208 QoS Implementation Techniques
9.5 208 Video Tutorial
QoS Implementation Techniques
9.5.1 208 Avoiding Packet Loss
9.5.2 208 QoS Tools
9.5.3 208 Classification and Marking
9.5.4 209 Marking at Layer 2
9.5.5 210 Marking at Layer 3
9.5.6 210 Type of Service and Traffic Class Field
9.5.7 211 DSCP Values
9.5.8 211 Class Selector Bits
9.5.9 211 Trust Boundaries
9.5.10 211 Congestion Avoidance
9.5.11 212 Shaping and Policing
9.5.12 212 QoS Policy Guidelines
9.5.13 213 Check Your Understanding
QoS Implementation Techniques
9.5.14 213 Module Practice and Quiz
9.6 213 What did I learn in this module?
9.6.1 213 Chapter Quiz
QoS Concepts 216 Your Chapter Notes 216 Chapter 10 Network Management 217 Introduction
10.0 217 Why should I take this module?
10.0.1 217 What will I learn to do in this module?
10.0.2 217 Device Discovery with CDP
10.1 217 CDP Overview
10.1.1 217 Configure and Verify CDP
10.1.2 218 Discover Devices by Using CDP
10.1.3 220 Syntax Checker
Configure and Verify CDP
10.1.4 222 Packet Tracer
Use CDP to Map a Network
10.1.5 222 Device Discovery with LLDP
10.2 222 LLDP Overview
10.2.1 222 Configure and Verify LLDP
10.2.2 222 Discover Devices by Using LLDP
10.2.3 223 Syntax Checker
Configure and Verify LLDP
10.2.4 225 Check Your Understanding
Compare CDP and LLDP
10.2.5 225 Packet Tracer
Use LLDP to Map a Network
10.2.6 225 NTP
10.3 225 Time and Calendar Services
10.3.1 225 NTP Operation
10.3.2 226 Configure and Verify NTP
10.3.3 227 Packet Tracer
Configure and Verify NTP
10.3.4 229 SNMP
10.4 229 Introduction to SNMP
10.4.1 229 SNMP Operation
10.4.2 230 SNMP Agent Traps
10.4.3 230 SNMP Versions
10.4.4 231 Check Your Understanding
SNMP Versions
10.4.5 232 Community Strings
10.4.6 232 MIB Object ID
10.4.7 233 SNMP Polling Scenario
10.4.8 233 SNMP Object Navigator
10.4.9 233 Lab
Research Network Monitoring Software
10.4.10 234 Syslog
10.5 234 Introduction to Syslog
10.5.1 234 Syslog Operation
10.5.2 234 Syslog Message Format
10.5.3 235 Syslog Facilities
10.5.4 236 Configure Syslog Timestamp
10.5.5 236 Check Your Understanding
Syslog Operation
10.5.6 237 Router and Switch File Maintenance
10.6 237 Router File Systems
10.6.1 237 Switch File Systems
10.6.2 240 Use a Text File to Back Up a Configuration
10.6.3 241 Use a Text File to Restore a Configuration
10.6.4 241 Use TFTP to Back Up and Restore a Configuration
10.6.5 242 USB Ports on a Cisco Router
10.6.6 242 Use USB to Back Up and Restore a Configuration
10.6.7 243 Password Recovery Procedures
10.6.8 245 Password Recovery Example
10.6.9 245 Packet Tracer
Back Up Configuration Files
10.6.10 247 Lab
Use Tera Term to Manage Router Configuration Files
10.6.11 248 Lab
Use TFTP, Flash, and USB to Manage Configuration Files
10.6.12 248 Lab
Research Password Recovery Procedures
10.6.13 248 IOS Image Management
10.7 248 Video
Managing Cisco IOS Images
10.7.1 248 TFTP Servers as a Backup Location
10.7.2 248 Backup IOS Image to TFTP Server Example
10.7.3 249 Copy an IOS Image to a Device Example
10.7.4 250 The boot system Command
10.7.5 251 Packet Tracer
Use a TFTP Server to Upgrade a Cisco IOS Image
10.7.6 252 Module Practice and Quiz
10.8 253 Packet Tracer
Configure CDP, LLDP, and NTP
10.8.1 253 Lab
Configure CDP, LLDP, and NTP
10.8.2 253 What did I learn in this module?
10.8.3 253 Chapter Quiz
Network Management 257 Your Chapter Notes 257 Chapter 11 Network Design 259 Introduction
11.0 259 Why should I take this module?
11.0.1 259 What will I learn to do in this module?
11.0.2 259 Hierarchical Networks
11.1 259 Video
Three
Layer Network Design
11.1.1 259 The Need to Scale the Network
11.1.2 259 Borderless Switched Networks
11.1.3 260 Hierarchy in the Borderless Switched Network
11.1.4 261 Access, Distribution, and Core Layer Functions
11.1.5 262 Three
Tier and Two
Tier Examples
11.1.6 262 Role of Switched Networks
11.1.7 263 Check Your Understanding
Hierarchical Networks
11.1.8 263 Scalable Networks
11.2 263 Design for Scalability
11.2.1 263 Plan for Redundancy
11.2.2 264 Reduce Failure Domain Size
11.2.3 265 Increase Bandwidth
11.2.4 265 Expand the Access Layer
11.2.5 266 Tune Routing Protocols
11.2.6 266 Check Your Understanding
Scalable Networks
11.2.7 266 Switch Hardware
11.3 266 Switch Platforms
11.3.1 266 Switch Form Factors
11.3.2 267 Port Density
11.3.3 268 Forwarding Rates
11.3.4 268 Power over Ethernet
11.3.5 269 Multilayer Switching
11.3.6 269 Business Considerations for Switch Selection
11.3.7 270 Check Your Understanding
Switch Hardware
11.3.8 270 Router Hardware
11.4 270 Router Requirements
11.4.1 270 Cisco Routers
11.4.2 271 Router Form Factors
11.4.3 271 Check Your Understanding
Router Hardware
11.4.4 272 Module Practice and Quiz
11.5 272 Packet Tracer
Compare Layer 2 and Layer 3 Devices
11.5.1 272 What did I learn in this module?
11.5.2 273 Chapter Quiz
Network Design 275 Your Chapter Notes 275 Chapter 12 Network Troubleshooting 277 Introduction
12.0 277 Why should I take this module?
12.0.1 277 What will I learn to do in this module?
12.0.2 277 Network Documentation
12.1 277 Documentation Overview
12.1.1 277 Network Topology Diagrams
12.1.2 278 Network Device Documentation
12.1.3 279 Establish a Network Baseline
12.1.4 279 Step 1
Determine What Types of Data to Collect
12.1.5 280 Step 2
Identify Devices and Ports of Interest
12.1.6 280 Step 3
Determine the Baseline Duration
12.1.7 280 Data Measurement
12.1.8 281 Check Your Understanding
Network Documentation
12.1.9 282 Troubleshooting Process
12.2 282 General Troubleshooting Procedures
12.2.1 282 Seven
Step Troubleshooting Process
12.2.2 282 Question End Users
12.2.3 284 Gather Information
12.2.4 285 Troubleshooting with Layered Models
12.2.5 286 Structured Troubleshooting Methods
12.2.6 286 Guidelines for Selecting a Troubleshooting Method
12.2.7 288 Check Your Understanding
Troubleshooting Process
12.2.8 288 Troubleshooting Tools
12.3 288 Software Troubleshooting Tools
12.3.1 288 Protocol Analyzers
12.3.2 289 Hardware Troubleshooting Tools
12.3.3 289 Syslog Server as a Troubleshooting Tool
12.3.4 290 Check Your Understanding
Troubleshooting Tools
12.3.5 292 Symptoms and Causes of Network Problems
12.4 292 Physical Layer Troubleshooting
12.4.1 292 Data Link Layer Troubleshooting
12.4.2 294 Network Layer Troubleshooting
12.4.3 295 Transport Layer Troubleshooting
ACLs
12.4.4 297 Transport Layer Troubleshooting
NAT for IPv4
12.4.5 298 Application Layer Troubleshooting
12.4.6 299 Check Your Understanding
Symptoms and Causes of Network Problems
12.4.7 300 Troubleshooting IP Connectivity
12.5 300 Components of Troubleshooting End
to
End Connectivity
12.5.1 300 End
to
End Connectivity Problem Initiates Troubleshooting
12.5.2 301 Step 1
Verify the Physical Layer
12.5.3 303 Step 2
Check for Duplex Mismatches
12.5.4 304 Step 3
Verify Addressing on the Local Network
12.5.5 306 Step 4
Verify Default Gateway
12.5.7 310 Troubleshoot IPv6 Default Gateway Example
12.5.8 311 Step 5
Verify Correct Path
12.5.9 314 Step 6
Verify the Transport Layer
12.5.10 315 Step 7
Verify ACLs
12.5.11 317 Step 8
Verify DNS
12.5.12 318 Packet Tracer
Troubleshoot Enterprise Networks
12.5.13 319 Module Practice and Quiz
12.6 319 Packet Tracer
Troubleshooting Challenge
Document the Network
12.6.1 319 Packet Tracer
Troubleshooting Challenge
Use Documentation to Solve Issues
12.6.2 319 What did I learn in this module?
12.6.3 320 Chapter Quiz
Network Troubleshooting 324 Your Chapter Notes 324 Chapter 13 Network Virtualization 325 Introduction
13.0 325 Why should I take this module?
13.0.1 325 What will I learn to do in this module?
13.0.2 325 Cloud Computing
13.1 325 Video
Cloud and Virtualization
13.1.1 325 Cloud Overview
13.1.2 325 Cloud Services
13.1.3 326 Cloud Models
13.1.4 326 Cloud Computing versus Data Center
13.1.5 327 Check Your Understanding
Cloud Computing
13.1.6 327 Virtualization
13.2 327 Cloud Computing and Virtualization
13.2.1 327 Dedicated Servers
13.2.2 328 Server Virtualization
13.2.3 328 Advantages of Virtualization
13.2.4 328 Abstraction Layers
13.2.5 329 Type 2 Hypervisors
13.2.6 330 Check Your Understanding
Virtualization
13.2.7 330 Virtual Network Infrastructure
13.3 330 Type 1 Hypervisors
13.3.1 330 Installing a VM on a Hypervisor
13.3.2 330 The Complexity of Network Virtualization
13.3.3 331 Check Your Understanding
Virtual Network Infrastructure
13.3.4 332 Software
Defined Networking
13.4 332 Video
Software
Defined Networking
13.4.1 332 Control Plane and Data Plane
13.4.2 332 Network Virtualization Technologies
13.4.3 333 Traditional and SDN Architectures
13.4.4 334 Check Your Understanding
Software
Defined Networking
13.4.5 334 Controllers
13.5 334 SDN Controller and Operations
13.5.1 334 Video
Cisco ACI
13.5.2 335 Core Components of ACI
13.5.3 335 Spine
Leaf Topology
13.5.4 335 SDN Types
13.5.5 336 APIC
EM Features
13.5.6 336 APIC
EM Path Trace
13.5.7 336 Check Your Understanding
Controllers
13.5.8 337 Module Practice and Quiz
13.6 337 Lab
Install Linux in a Virtual Machine and Explore the GUI
13.6.1 337 What did I learn in this module?
13.6.2 337 Chapter Quiz
Network Virtualization 341 Your Chapter Notes 341 Chapter 14 Network Automation 343 Introduction
14.0 343 Why should I take this module?
14.0.1 343 What will I learn in this module?
14.0.2 343 Automation Overview
14.1 343 Video
Automation Everywhere
14.1.1 343 The Increase in Automation
14.1.2 344 Thinking Devices
14.1.3 344 Check Your Understanding
Benefits of Automation
14.1.4 344 Data Formats
14.2 344 Video
Data Formats
14.2.1 344 The Data Formats Concept
14.2.2 345 Data Format Rules
14.2.3 345 Compare Data Formats
14.2.4 346 JSON Data Format
14.2.5 347 JSON Syntax Rules
14.2.6 348 YAML Data Format
14.2.7 349 XML Data Format
14.
Area OSPFv2 Concepts 1 Introduction
1.0 1 Why should I take this module?
1.0.1 1 What will I learn to do in this module?
1.0.2 1 OSPF Features and Characteristics
1.1 1 Introduction to OSPF
1.1.1 1 Components of OSPF
1.1.2 2 Link
State Operation
1.1.3 3 Single
Area and Multiarea OSPF
1.1.4 4 Multiarea OSPF
1.1.5 4 OSPFv3
1.1.6 5 Check Your Understanding
OSPF Features and Characteristics
1.1.7 6 OSPF Packets
1.2 6 Video
OSPF Packets
1.2.1 6 Types of OSPF Packets
1.2.2 6 Link
State Updates
1.2.3 7 Hello Packet
1.2.4 7 Check Your Understanding
OSPF Packets
1.2.5 7 OSPF Operation
1.3 7 Video
OSPF Operation
1.3.1 7 OSPF Operational States
1.3.2 7 Establish Neighbor Adjacencies
1.3.3 8 Synchronizing OSPF Databases
1.3.4 9 The Need for a DR
1.3.5 10 LSA Flooding With a DR
1.3.6 11 Check Your Understanding
OPSF Operation
1.3.7 11 Module Practice and Quiz
1.4 11 What did I learn in this module?
1.4.1 11 Chapter Quiz
Single
Area OSPFv2 Concepts 14 Your Chapter Notes 14 Chapter 2 Single
Area OSPFv2 Configuration 15 Introduction
2.0 15 Why should I take this module?
2.0.1 15 What will I learn to do in this module?
2.0.2 15 OSPF Router ID
2.1 15 OSPF Reference Topology
2.1.1 15 Router Configuration Mode for OSPF
2.1.2 16 Router IDs
2.1.3 16 Router ID Order of Precedence
2.1.4 17 Configure a Loopback Interface as the Router ID
2.1.5 17 Explicitly Configure a Router ID
2.1.6 18 Modify a Router ID
2.1.7 18 Syntax Checker
Configure R2 and R3 Router IDs
2.1.8 19 Check Your Understanding
OSPF Router ID
2.1.9 19 Point
to
Point OSPF Networks
2.2 20 The network Command Syntax
2.2.1 20 The Wildcard Mask
2.2.2 20 Check Your Understanding
The Wildcard Masks
2.2.3 20 Configure OSPF Using the network Command
2.2.4 20 Syntax Checker
Configure R2 and R3 Using the network Command
2.2.5 21 Configure OSPF Using the ip ospf Command
2.2.6 21 Syntax Checker
Configure R2 and R3 Using the ip ospf Command
2.2.7 22 Passive Interface
2.2.8 22 Configure Passive Interfaces
2.2.9 23 Syntax Checker
Configure R2 and R3 Passive Interfaces
2.2.10 24 OSPF Point
to
Point Networks
2.2.11 24 Loopbacks and Point
to
Point Networks
2.2.12 26 Packet Tracer
Point
to
Point Single
Area OSPFv2 Configuration
2.2.13 26 Multiaccess OSPF Networks
2.3 27 OSPF Network Types
2.3.1 27 OSPF Designated Router
2.3.2 27 OSPF Multiaccess Reference Topology
2.3.3 27 Verify OSPF Router Roles
2.3.4 28 Verify DR/BDR Adjacencies
2.3.5 30 Default DR/BDR Election Process
2.3.6 32 DR Failure and Recovery
2.3.7 33 The ip ospf priority Command
2.3.8 33 Configure OSPF Priority
2.3.9 34 Syntax Checker
Configure OSPF Priority
2.3.10 35 Packet Tracer
Determine the DR and BDR
2.3.11 35 Modify Single
Area OSPFv2
2.4 36 Cisco OSPF Cost Metric
2.4.1 36 Adjust the Reference Bandwidth
2.4.2 36 OSPF Accumulates Costs
2.4.3 38 Manually Set OSPF Cost Value
2.4.4 38 Test Failover to Backup Route
2.4.5 39 Syntax Checker
Modify the Cost Values for R2 and R3
2.4.6 40 Hello Packet Intervals
2.4.7 40 Verify Hello and Dead Intervals
2.4.8 40 Modify OSPFv2 Intervals
2.4.9 42 Syntax Checker
Modifying Hello and Dead Intervals on R3
2.4.10 43 Packet Tracer
Modify Single
Area OSPFv2
2.4.11 43 Default Route Propagation
2.5 43 Propagate a Default Static Route in OSPFv2
2.5.1 43 Verify the Propagated Default Route
2.5.2 44 Packet Tracer
Propagate a Default Route in OSPFv2
2.5.3 46 Verify Single
Area OSPFv2
2.6 46 Verify OSPF Neighbors
2.6.1 46 Verify OSPF Protocol Settings
2.6.2 48 Verify OSPF Process Information
2.6.3 48 Verify OSPF Interface Settings
2.6.4 50 Syntax Checker
Verify Single
Area OSPFv2
2.6.5 51 Packet Tracer
Verify Single
Area OSPFv2
2.6.6 51 Module Practice and Quiz
2.7 51 Packet Tracer
Single
Area OSPFv2 Configuration
2.7.1 51 Lab
Single
Area OSPFv2 Configuration
2.7.2 51 What did I learn in this module?
2.7.3 52 Chapter Quiz
Single
Area OSPFv2 Configuration 56 Your Chapter Notes 56 Chapter 3 Network Security Concepts 57 Introduction
3.0 57 Why should I take this module?
3.0.1 57 What will I learn in this module?
3.0.2 57 Ethical Hacking Statement
3.0.3 57 Current State of Cybersecurity
3.1 58 Current State of Affairs
3.1.1 58 Vectors of Network Attacks
3.1.2 58 Data Loss
3.1.3 59 Check Your Understanding
Current State of Cybersecurity
3.1.4 60 Threat Actors
3.2 60 The Hacker
3.2.1 60 Evolution of Hackers
3.2.2 61 Cyber Criminals
3.2.3 61 Hacktivists
3.2.4 61 State
Sponsored Hackers
3.2.5 61 Check Your Understanding
Threat Actors
3.2.6 62 Threat Actor Tools
3.3 62 Video
Threat Actor Tools
3.3.1 62 Introduction to Attack Tools
3.3.2 62 Evolution of Security Tools
3.3.3 62 Attack Types
3.3.4 63 Check Your Understanding
Threat Actor Tools
3.3.5 64 Malware
3.4 64 Overview of Malware
3.4.1 64 Viruses and Trojan Horses
3.4.2 64 Other Types of Malware
3.4.3 65 Check Your Understanding
Malware
3.4.4 66 Common Network Attacks
3.5 66 Overview of Network Attacks
3.5.1 66 Video
Reconnaissance Attacks
3.5.2 67 Reconnaissance Attacks
3.5.3 67 Video
Access and Social Engineering Attacks
3.5.4 68 Access Attacks
3.5.5 68 Social Engineering Attacks
3.5.6 69 Lab
Social Engineering
3.5.7 70 Video
Denial of Service Attacks
3.5.8 70 DoS and DDoS Attacks
3.5.9 70 Check Your Understanding
Common Network Attacks
3.5.10 71 IP Vulnerabilities and Threats
3.6 71 Video
Common IP and ICMP Attacks
3.6.1 71 IPv4 and IPv6
3.6.2 71 ICMP Attacks
3.6.3 71 Video
Amplification, Reflection, and Spoofing Attacks
3.6.4 72 Amplification and Reflection Attacks
3.6.5 72 Address Spoofing Attacks
3.6.6 72 Check Your Understanding
IP Vulnerabilities and Threats
3.6.7 73 TCP and UDP Vulnerabilities
3.7 73 TCP Segment Header
3.7.1 73 TCP Services
3.7.2 73 TCP Attacks
3.7.3 74 UDP Segment Header and Operation
3.7.4 74 UDP Attacks
3.7.5 75 Check Your Understanding
TCP and UDP Vulnerabilities
3.7.6 75 IP Services
3.8 75 ARP Vulnerabilities
3.8.1 75 ARP Cache Poisoning
3.8.2 76 Video
ARP Spoofing
3.8.3 76 DNS Attacks
3.8.4 76 DNS Tunneling
3.8.5 78 DHCP
3.8.6 78 DHCP Attacks
3.8.7 78 Lab
Explore DNS Traffic
3.8.8 79 Network Security Best Practices
3.9 80 Confidentiality, Integrity, and Availability
3.9.1 80 The Defense
in
Depth Approach
3.9.2 80 Firewalls
3.9.3 80 IPS
3.9.4 81 Content Security Appliances
3.9.5 81 Check Your Understanding
Network Security Best Practices
3.9.6 82 Cryptography
3.10 82 Video
Cryptography
3.10.1 82 Securing Communications
3.10.2 82 Data Integrity
3.10.3 83 Hash Functions
3.10.4 83 Origin Authentication
3.10.5 84 Data Confidentiality
3.10.6 85 Symmetric Encryption
3.10.7 85 Asymmetric Encryption
3.10.8 86 Diffie
Hellman
3.10.9 87 Check Your Understanding
Cryptography
3.10.10 88 Module Practice and Quiz
3.11 88 What did I learn in this module?
3.11.1 88 Chapter Quiz
Network Security Concepts 91 Your Chapter Notes 91 Chapter 4 ACL Concepts 93 Introduction
4.0 93 Why should I take this module?
4.0.1 93 What will I learn to do in this module?
4.0.2 93 Purpose of ACLs
4.1 93 What is an ACL?
4.1.1 93 Packet Filtering
4.1.2 95 ACL Operation
4.1.3 95 Packet Tracer
ACL Demonstration
4.1.4 96 Check Your Understanding
Purpose of ACLs
4.1.5 96 Wildcard Masks in ACLs
4.2 96 Wildcard Mask Overview
4.2.1 96 Wildcard Mask Types
4.2.2 97 Wildcard Mask Calculation
4.2.3 97 Wildcard Mask Keywords
4.2.4 98 Check Your Understanding
Wildcard Masks in ACLs
4.2.5 99 Guidelines for ACL Creation
4.3 99 Limited Number of ACLs per Interface
4.3.1 99 ACL Best Practices
4.3.2 99 Check Your Understanding
Guidelines for ACL Creation
4.3.3 100 Types of IPv4 ACLs
4.4 100 Standard and Extended ACLs
4.4.1 100 Numbered and Named ACLs
4.4.2 101 Where to Place ACLs
4.4.3 102 Standard ACL Placement Example
4.4.4 102 Extended ACL Placement Example
4.4.5 103 Check Your Understanding
Guidelines for ACL Placement
4.4.6 103 Module Practice and Quiz
4.5 103 What did I learn in this module?
4.5.1 103 Chapter Quiz
ACL Concepts 106 Your Chapter Notes 106 Chapter 5 ACLs for IPv4 Configuration 107 Introduction
5.0 107 Why should I take this module?
5.0.1 107 What will I learn to do in this module?
5.0.2 107 Configure Standard IPv4 ACLs
5.1 107 Create an ACL
5.1.1 107 Numbered Standard IPv4 ACL Syntax
5.1.2 108 Named Standard IPv4 ACL Syntax
5.1.3 109 Apply a Standard IPv4 ACL
5.1.4 109 Numbered Standard IPv4 ACL Example
5.1.5 110 Named Standard IPv4 ACL Example
5.1.6 111 Syntax Check
Configure Standard IPv4 ACLs
5.1.7 112 Packet Tracer
Configure Numbered Standard IPv4 ACLs
5.1.8 113 Packet Tracer
Configure Named Standard IPv4 ACLs
5.1.9 113 Modify IPv4 ACLs
5.2 113 Two Methods to Modify an ACL
5.2.1 113 Text Editor Method
5.2.2 113 Sequence Numbers Method
5.2.3 114 Modify a Named ACL Example
5.2.4 115 ACL Statistics
5.2.5 116 Syntax Checker
Modify IPv4 ACLs
5.2.6 116 Packet Tracer
Configure and Modify Standard IPv4 ACLs
5.2.7 116 Secure VTY Ports with a Standard IPv4 ACL
5.3 116 The access
class Command
5.3.1 116 Secure VTY Access Example
5.3.2 117 Verify the VTY Port is Secured
5.3.3 118 Syntax Checker
Secure the VTY Ports
5.3.4 118 Configure Extended IPv4 ACLs
5.4 119 Extended ACLs
5.4.1 119 Numbered Extended IPv4 ACL Syntax
5.4.2 119 Protocols and Ports
5.4.3 120 Protocols and Port Numbers Configuration Examples
5.4.4 123 Apply a Numbered Extended IPv4 ACL
5.4.5 123 TCP Established Extended ACL
5.4.6 123 Named Extended IPv4 ACL Syntax
5.4.7 124 Named Extended IPv4 ACL Example
5.4.8 125 Edit Extended ACLs
5.4.9 126 Another Named Extended IPv4 ACL Example
5.4.10 127 Verify Extended ACLs
5.4.11 128 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 1
5.4.12 130 Packet Tracer
Configure Extended IPv4 ACLs
Scenario 2
5.4.13 130 Module Practice and Quiz
5.5 130 Packet Tracer
IPv4 ACL Implementation Challenge
5.5.1 130 Lab
Configure and Verify Extended IPv4 ACLs
5.5.2 131 What did I learn in this module?
5.5.3 131 Chapter Quiz
ACLs for IPv4 Implementation 133 Your Chapter Notes 133 Chapter 6 NAT for IPv4 135 Introduction
6.0 135 Why should I take this module?
6.0.1 135 What will I learn to do in this module?
6.0.2 135 NAT Characteristics
6.1 135 IPv4 Private Address Space
6.1.1 135 What is NAT
6.1.2 136 How NAT Works
6.1.3 137 NAT Terminology
6.1.4 137 Check Your Understanding
NAT Characteristics
6.1.5 138 Types of NAT
6.2 139 Static NAT
6.2.1 139 Dynamic NAT
6.2.2 139 Port Address Translation
6.2.3 139 Next Available Port
6.2.4 140 NAT and PAT Comparison
6.2.5 140 Packets without a Layer 4 Segment
6.2.6 141 Packet Tracer
Investigate NAT Operations
6.2.7 141 NAT Advantages and Disadvantages
6.3 142 Advantages of NAT
6.3.1 142 Disadvantages of NAT
6.3.2 142 Check Your Understanding
NAT Advantages and Disadvantages
6.3.3 143 Static NAT
6.4 143 Static NAT Scenario
6.4.1 143 Configure Static NAT
6.4.2 143 Analyze Static NAT
6.4.3 144 Verify Static NAT
6.4.4 144 Packet Tracer
Configure Static NAT
6.4.5 145 Dynamic NAT
6.5 146 Dynamic NAT Scenario
6.5.1 146 Configure Dynamic NAT
6.5.2 146 Analyze Dynamic NAT
Inside to Outside
6.5.3 147 Analyze Dynamic NAT
Outside to Inside
6.5.4 147 Verify Dynamic NAT
6.5.5 148 Packet Tracer
Configure Dynamic NAT
6.5.6 150 PAT
6.6 150 PAT Scenario
6.6.1 150 Configure PAT to Use a Single IPv4 Address
6.6.2 150 Configure PAT to Use an Address Pool
6.6.3 151 Analyze PAT
PC to Server
6.6.4 151 Analyze PAT
Server to PC
6.6.5 151 Verify PAT
6.6.6 151 Packet Tracer
Configure PAT
6.6.7 152 NAT64
6.7 153 NAT for IPv6?
6.7.1 153 NAT64
6.7.2 153 Module Practice and Quiz
6.8 153 Packet Tracer
Configure NAT for IPv4
6.8.1 153 Lab
Configure NAT for IPv4
6.8.2 154 What did I learn in this module?
6.8.3 154 Chapter Quiz
NAT for IPv4 158 Your Chapter Notes 158 Chapter 7 WAN Concepts 159 Introduction
7.0 159 Why should I take this module?
7.0.1 159 What will I learn to do in this module?
7.0.2 159 Purpose of WANs
7.1 159 LANs and WANs
7.1.1 159 Private and Public WANs
7.1.2 160 WAN Topologies
7.1.3 160 Carrier Connections
7.1.4 162 Evolving Networks
7.1.5 162 Check Your Understanding
Purpose of WANs
7.1.6 164 WAN Operations
7.2 164 WAN Standards
7.2.1 164 WANs in the OSI Model
7.2.2 164 Common WAN Terminology
7.2.3 165 WAN Devices
7.2.4 166 Serial Communication
7.2.5 167 Circuit
Switched Communication
7.2.6 168 Packet
Switched Communications
7.2.7 168 SDH, SONET, and DWDM
7.2.8 169 Check Your Understanding
WAN Operations
7.2.9 169 Traditional WAN Connectivity
7.3 169 Traditional WAN Connectivity Options
7.3.1 169 Common WAN Terminology
7.3.2 169 Circuit
Switched Options
7.3.3 170 Packet
Switched Options
7.3.4 171 Check Your Understanding
Traditional WAN Connectivity
7.3.5 172 Modern WAN Connectivity
7.4 172 Modern WANs
7.4.1 172 Modern WAN Connectivity Options
7.4.2 172 Ethernet WAN
7.4.3 173 MPLS
7.4.4 174 Check Your Understanding
Modern WAN Connectivity
7.4.5 174 Internet
Based Connectivity
7.5 174 Internet
Based Connectivity Options
7.5.1 174 DSL Technology
7.5.2 175 DSL Connections
7.5.3 175 DSL and PPP
7.5.4 176 Cable Technology
7.5.5 176 Optical Fiber
7.5.6 177 Wireless Internet
Based Broadband
7.5.7 177 VPN Technology
7.5.8 179 ISP Connectivity Options
7.5.9 179 Broadband Solution Comparison
7.5.10 180 Lab
Research Broadband Internet Access Options
7.5.11 181 Module Practice and Quiz
7.6 181 Packet Tracer
WAN Concepts
7.6.1 181 What did I learn in this module?
7.6.2 181 Chapter Quiz
WAN Concepts 184 Your Chapter Notes 184 Chapter 8 VPN and IPsec Concepts 185 Introduction
8.0 185 Why should I take this module?
8.0.1 185 What will I learn in this module?
8.0.2 185 VPN Technology
8.1 185 Virtual Private Networks
8.1.1 185 VPN Benefits
8.1.2 186 Site
to
Site and Remote
Access VPNs
8.1.3 186 Enterprise and Service Provider VPNs
8.1.4 186 Check Your Understanding
VPN Technology
8.1.5 187 Types of VPNs
8.2 187 Remote
Access VPNs
8.2.1 187 SSL VPNs
8.2.2 187 Site
to
Site IPsec VPNs
8.2.3 188 GRE over IPsec
8.2.4 188 Dynamic Multipoint VPNs
8.2.5 189 IPsec Virtual Tunnel Interface
8.2.6 189 Service Provider MPLS VPNs
8.2.7 190 Check Your Understanding
Types of VPNs
8.2.8 190 IPsec
8.3 190 Video
IPsec Concepts
8.3.1 190 IPsec Technologies
8.3.2 190 IPsec Protocol Encapsulation
8.3.3 191 Confidentiality
8.3.4 192 Integrity
8.3.5 192 Authentication
8.3.6 192 Secure Key Exchange with Diffie
Hellman
8.3.7 193 Video
IPsec Transport and Tunnel Mode
8.3.8 193 Check Your Understanding
IPsec
8.3.9 193 Module Practice and Quiz
8.4 193 What did I learn in this module?
8.4.1 193 Chapter Quiz
VPN and IPsec Concepts 195 Your Chapter Notes 195 Chapter 9 QoS Concepts 197 Introduction
9.0 197 Why should I take this module?
9.0.1 197 What will I learn to do in this module?
9.0.2 197 Network Transmission Quality
9.1 197 Video Tutorial
The Purpose of QoS
9.1.1 197 Prioritizing Traffic
9.1.2 197 Bandwidth, Congestion, Delay, and Jitter
9.1.3 198 Packet Loss
9.1.4 199 Check Your Understanding
Network Transmission Quality
9.1.5 199 Traffic Characteristics
9.2 199 Video Tutorial
Traffic Characteristics
9.2.1 199 Network Traffic Trends
9.2.2 199 Voice
9.2.3 200 Video
9.2.4 200 Data
9.2.5 201 Check Your Understanding
Traffic Characteristics
9.2.6 202 Queuing Algorithms
9.3 202 Video Tutorial
QoS Algorithms
9.3.1 202 Queuing Overview
9.3.2 202 First In First Out
9.3.3 202 Weighted Fair Queuing (WFQ)
9.3.4 203 Class
Based Weighted Fair Queuing (CBWFQ)
9.3.5 203 Low Latency Queuing (LLQ)
9.3.6 204 Check Your Understanding
Queuing Algorithms
9.3.7 204 QoS Models
9.4 204 Video Tutorial
QoS Models
9.4.1 204 Selecting an Appropriate QoS Policy Model
9.4.2 204 Best Effort
9.4.3 205 Integrated Services
9.4.4 206 Differentiated Services
9.4.5 206 Check Your Understanding
QoS Models
9.4.6 208 QoS Implementation Techniques
9.5 208 Video Tutorial
QoS Implementation Techniques
9.5.1 208 Avoiding Packet Loss
9.5.2 208 QoS Tools
9.5.3 208 Classification and Marking
9.5.4 209 Marking at Layer 2
9.5.5 210 Marking at Layer 3
9.5.6 210 Type of Service and Traffic Class Field
9.5.7 211 DSCP Values
9.5.8 211 Class Selector Bits
9.5.9 211 Trust Boundaries
9.5.10 211 Congestion Avoidance
9.5.11 212 Shaping and Policing
9.5.12 212 QoS Policy Guidelines
9.5.13 213 Check Your Understanding
QoS Implementation Techniques
9.5.14 213 Module Practice and Quiz
9.6 213 What did I learn in this module?
9.6.1 213 Chapter Quiz
QoS Concepts 216 Your Chapter Notes 216 Chapter 10 Network Management 217 Introduction
10.0 217 Why should I take this module?
10.0.1 217 What will I learn to do in this module?
10.0.2 217 Device Discovery with CDP
10.1 217 CDP Overview
10.1.1 217 Configure and Verify CDP
10.1.2 218 Discover Devices by Using CDP
10.1.3 220 Syntax Checker
Configure and Verify CDP
10.1.4 222 Packet Tracer
Use CDP to Map a Network
10.1.5 222 Device Discovery with LLDP
10.2 222 LLDP Overview
10.2.1 222 Configure and Verify LLDP
10.2.2 222 Discover Devices by Using LLDP
10.2.3 223 Syntax Checker
Configure and Verify LLDP
10.2.4 225 Check Your Understanding
Compare CDP and LLDP
10.2.5 225 Packet Tracer
Use LLDP to Map a Network
10.2.6 225 NTP
10.3 225 Time and Calendar Services
10.3.1 225 NTP Operation
10.3.2 226 Configure and Verify NTP
10.3.3 227 Packet Tracer
Configure and Verify NTP
10.3.4 229 SNMP
10.4 229 Introduction to SNMP
10.4.1 229 SNMP Operation
10.4.2 230 SNMP Agent Traps
10.4.3 230 SNMP Versions
10.4.4 231 Check Your Understanding
SNMP Versions
10.4.5 232 Community Strings
10.4.6 232 MIB Object ID
10.4.7 233 SNMP Polling Scenario
10.4.8 233 SNMP Object Navigator
10.4.9 233 Lab
Research Network Monitoring Software
10.4.10 234 Syslog
10.5 234 Introduction to Syslog
10.5.1 234 Syslog Operation
10.5.2 234 Syslog Message Format
10.5.3 235 Syslog Facilities
10.5.4 236 Configure Syslog Timestamp
10.5.5 236 Check Your Understanding
Syslog Operation
10.5.6 237 Router and Switch File Maintenance
10.6 237 Router File Systems
10.6.1 237 Switch File Systems
10.6.2 240 Use a Text File to Back Up a Configuration
10.6.3 241 Use a Text File to Restore a Configuration
10.6.4 241 Use TFTP to Back Up and Restore a Configuration
10.6.5 242 USB Ports on a Cisco Router
10.6.6 242 Use USB to Back Up and Restore a Configuration
10.6.7 243 Password Recovery Procedures
10.6.8 245 Password Recovery Example
10.6.9 245 Packet Tracer
Back Up Configuration Files
10.6.10 247 Lab
Use Tera Term to Manage Router Configuration Files
10.6.11 248 Lab
Use TFTP, Flash, and USB to Manage Configuration Files
10.6.12 248 Lab
Research Password Recovery Procedures
10.6.13 248 IOS Image Management
10.7 248 Video
Managing Cisco IOS Images
10.7.1 248 TFTP Servers as a Backup Location
10.7.2 248 Backup IOS Image to TFTP Server Example
10.7.3 249 Copy an IOS Image to a Device Example
10.7.4 250 The boot system Command
10.7.5 251 Packet Tracer
Use a TFTP Server to Upgrade a Cisco IOS Image
10.7.6 252 Module Practice and Quiz
10.8 253 Packet Tracer
Configure CDP, LLDP, and NTP
10.8.1 253 Lab
Configure CDP, LLDP, and NTP
10.8.2 253 What did I learn in this module?
10.8.3 253 Chapter Quiz
Network Management 257 Your Chapter Notes 257 Chapter 11 Network Design 259 Introduction
11.0 259 Why should I take this module?
11.0.1 259 What will I learn to do in this module?
11.0.2 259 Hierarchical Networks
11.1 259 Video
Three
Layer Network Design
11.1.1 259 The Need to Scale the Network
11.1.2 259 Borderless Switched Networks
11.1.3 260 Hierarchy in the Borderless Switched Network
11.1.4 261 Access, Distribution, and Core Layer Functions
11.1.5 262 Three
Tier and Two
Tier Examples
11.1.6 262 Role of Switched Networks
11.1.7 263 Check Your Understanding
Hierarchical Networks
11.1.8 263 Scalable Networks
11.2 263 Design for Scalability
11.2.1 263 Plan for Redundancy
11.2.2 264 Reduce Failure Domain Size
11.2.3 265 Increase Bandwidth
11.2.4 265 Expand the Access Layer
11.2.5 266 Tune Routing Protocols
11.2.6 266 Check Your Understanding
Scalable Networks
11.2.7 266 Switch Hardware
11.3 266 Switch Platforms
11.3.1 266 Switch Form Factors
11.3.2 267 Port Density
11.3.3 268 Forwarding Rates
11.3.4 268 Power over Ethernet
11.3.5 269 Multilayer Switching
11.3.6 269 Business Considerations for Switch Selection
11.3.7 270 Check Your Understanding
Switch Hardware
11.3.8 270 Router Hardware
11.4 270 Router Requirements
11.4.1 270 Cisco Routers
11.4.2 271 Router Form Factors
11.4.3 271 Check Your Understanding
Router Hardware
11.4.4 272 Module Practice and Quiz
11.5 272 Packet Tracer
Compare Layer 2 and Layer 3 Devices
11.5.1 272 What did I learn in this module?
11.5.2 273 Chapter Quiz
Network Design 275 Your Chapter Notes 275 Chapter 12 Network Troubleshooting 277 Introduction
12.0 277 Why should I take this module?
12.0.1 277 What will I learn to do in this module?
12.0.2 277 Network Documentation
12.1 277 Documentation Overview
12.1.1 277 Network Topology Diagrams
12.1.2 278 Network Device Documentation
12.1.3 279 Establish a Network Baseline
12.1.4 279 Step 1
Determine What Types of Data to Collect
12.1.5 280 Step 2
Identify Devices and Ports of Interest
12.1.6 280 Step 3
Determine the Baseline Duration
12.1.7 280 Data Measurement
12.1.8 281 Check Your Understanding
Network Documentation
12.1.9 282 Troubleshooting Process
12.2 282 General Troubleshooting Procedures
12.2.1 282 Seven
Step Troubleshooting Process
12.2.2 282 Question End Users
12.2.3 284 Gather Information
12.2.4 285 Troubleshooting with Layered Models
12.2.5 286 Structured Troubleshooting Methods
12.2.6 286 Guidelines for Selecting a Troubleshooting Method
12.2.7 288 Check Your Understanding
Troubleshooting Process
12.2.8 288 Troubleshooting Tools
12.3 288 Software Troubleshooting Tools
12.3.1 288 Protocol Analyzers
12.3.2 289 Hardware Troubleshooting Tools
12.3.3 289 Syslog Server as a Troubleshooting Tool
12.3.4 290 Check Your Understanding
Troubleshooting Tools
12.3.5 292 Symptoms and Causes of Network Problems
12.4 292 Physical Layer Troubleshooting
12.4.1 292 Data Link Layer Troubleshooting
12.4.2 294 Network Layer Troubleshooting
12.4.3 295 Transport Layer Troubleshooting
ACLs
12.4.4 297 Transport Layer Troubleshooting
NAT for IPv4
12.4.5 298 Application Layer Troubleshooting
12.4.6 299 Check Your Understanding
Symptoms and Causes of Network Problems
12.4.7 300 Troubleshooting IP Connectivity
12.5 300 Components of Troubleshooting End
to
End Connectivity
12.5.1 300 End
to
End Connectivity Problem Initiates Troubleshooting
12.5.2 301 Step 1
Verify the Physical Layer
12.5.3 303 Step 2
Check for Duplex Mismatches
12.5.4 304 Step 3
Verify Addressing on the Local Network
12.5.5 306 Step 4
Verify Default Gateway
12.5.7 310 Troubleshoot IPv6 Default Gateway Example
12.5.8 311 Step 5
Verify Correct Path
12.5.9 314 Step 6
Verify the Transport Layer
12.5.10 315 Step 7
Verify ACLs
12.5.11 317 Step 8
Verify DNS
12.5.12 318 Packet Tracer
Troubleshoot Enterprise Networks
12.5.13 319 Module Practice and Quiz
12.6 319 Packet Tracer
Troubleshooting Challenge
Document the Network
12.6.1 319 Packet Tracer
Troubleshooting Challenge
Use Documentation to Solve Issues
12.6.2 319 What did I learn in this module?
12.6.3 320 Chapter Quiz
Network Troubleshooting 324 Your Chapter Notes 324 Chapter 13 Network Virtualization 325 Introduction
13.0 325 Why should I take this module?
13.0.1 325 What will I learn to do in this module?
13.0.2 325 Cloud Computing
13.1 325 Video
Cloud and Virtualization
13.1.1 325 Cloud Overview
13.1.2 325 Cloud Services
13.1.3 326 Cloud Models
13.1.4 326 Cloud Computing versus Data Center
13.1.5 327 Check Your Understanding
Cloud Computing
13.1.6 327 Virtualization
13.2 327 Cloud Computing and Virtualization
13.2.1 327 Dedicated Servers
13.2.2 328 Server Virtualization
13.2.3 328 Advantages of Virtualization
13.2.4 328 Abstraction Layers
13.2.5 329 Type 2 Hypervisors
13.2.6 330 Check Your Understanding
Virtualization
13.2.7 330 Virtual Network Infrastructure
13.3 330 Type 1 Hypervisors
13.3.1 330 Installing a VM on a Hypervisor
13.3.2 330 The Complexity of Network Virtualization
13.3.3 331 Check Your Understanding
Virtual Network Infrastructure
13.3.4 332 Software
Defined Networking
13.4 332 Video
Software
Defined Networking
13.4.1 332 Control Plane and Data Plane
13.4.2 332 Network Virtualization Technologies
13.4.3 333 Traditional and SDN Architectures
13.4.4 334 Check Your Understanding
Software
Defined Networking
13.4.5 334 Controllers
13.5 334 SDN Controller and Operations
13.5.1 334 Video
Cisco ACI
13.5.2 335 Core Components of ACI
13.5.3 335 Spine
Leaf Topology
13.5.4 335 SDN Types
13.5.5 336 APIC
EM Features
13.5.6 336 APIC
EM Path Trace
13.5.7 336 Check Your Understanding
Controllers
13.5.8 337 Module Practice and Quiz
13.6 337 Lab
Install Linux in a Virtual Machine and Explore the GUI
13.6.1 337 What did I learn in this module?
13.6.2 337 Chapter Quiz
Network Virtualization 341 Your Chapter Notes 341 Chapter 14 Network Automation 343 Introduction
14.0 343 Why should I take this module?
14.0.1 343 What will I learn in this module?
14.0.2 343 Automation Overview
14.1 343 Video
Automation Everywhere
14.1.1 343 The Increase in Automation
14.1.2 344 Thinking Devices
14.1.3 344 Check Your Understanding
Benefits of Automation
14.1.4 344 Data Formats
14.2 344 Video
Data Formats
14.2.1 344 The Data Formats Concept
14.2.2 345 Data Format Rules
14.2.3 345 Compare Data Formats
14.2.4 346 JSON Data Format
14.2.5 347 JSON Syntax Rules
14.2.6 348 YAML Data Format
14.2.7 349 XML Data Format
14.