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This Cisco-authorized, self-paced foundation learning tool for both the CCENT 100-101 and CCNA® 200-120 exams offers a comprehensive overview of the diverse technologies found in modern internetworks. From routing and switching concepts to practical configuration and security, it teaches with numerous examples, illustrations, and real-world scenarios, helping you rapidly gain both expertise and confidence.
This book provides you with all the knowledge you need to install, operate and troubleshoot a small enterprise branch network, including basic network security. Whether you are preparing for certification or simply want to understand basic Cisco networking, you'll find this guide exceptionally valuable. Topics covered include: TCP/IP models and protocols; LANs and Ethernet; running Cisco IOS; VLANs and trunks; IP addressing and subnetting; packet delivery; static and dynamic routing; DHCP and NAT; network security; WANs, IPv6, and more.
This edition has been fully updated to reflect the new Cisco ICND1 100-101 exam blueprint. Content has been reorganized, simplified, and expanded to help you learn even more efficiently. New Production Network Simulation questions offer more real-world review, and new web video resources in each chapter walks you through many key tasks.
Interconnecting Cisco Network Devices, Part 1 (ICND1) Foundation Learning Guide, Fourth Edition is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction from authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.
IPv6 configuration in dynamically routed network environments
Autorentext
Anthony Sequeira, CCIE No. 15626, is a seasoned trainer and author regarding all levels and tracks of Cisco certification. Anthony formally began his career in the information technology industry in 1994 with IBM in Tampa, Florida. He quickly formed his own computer consultancy, Computer Solutions, and then discovered his true passion-teaching and writing about Microsoft and Cisco technologies.
Anthony joined Mastering Computers in 1996 and lectured to massive audiences around the world about the latest in computer technologies. Mastering Computers became the revolutionary online training company, KnowledgeNet, and Anthony trained there for many years.
Anthony is currently pursuing his second CCIE in the area of security and then his third Cisco Data Center! When not writing for Cisco Press, Anthony is a full-time instructor for the next-generation of KnowledgeNet, StormWind.com.
Anthony is an avid tennis player, is a private pilot, and enjoys getting beaten up by women and children at his and his daughter's martial arts school, www.sparta.fm .
Inhalt
Introduction xxi
Chapter 1 The Functions of Networking 1
Chapter Objectives 2
What Is a Network? 2
Physical Components of a Network 4
Interpreting a Network Diagram 5
Network User Applications 7
Impact of User Applications on the Network 8
Characteristics of a Network 10
Physical Versus Logical Topologies 11
Physical Topologies 11
Logical Topologies 12
Bus Topology 13
Star and Extended-Star Topologies 14
Star Topology 14
Extended-Star Topology 15
Ring Topologies 16
Single-Ring Topology 16
Dual-Ring Topology 17
Mesh and Partial-Mesh Topologies 17
Full-Mesh Topology 17
Partial-Mesh Topology 18
Connections to the Internet 18
Chapter 2 The OSI and TCP/IP Models 25
Chapter Objectives 26
Understanding the Host-to-Host Communications Model 26
The OSI Reference Model 27
Layer 7: The Application Layer 29
Layer 6: The Presentation Layer 29
Layer 5: The Session Layer 29
Layer 4: The Transport Layer 30
Layer 3: The Network Layer 30
Layer 2: The Data Link Layer 31
Layer 1: The Physical Layer 31
The Data Communications Process 31
Encapsulation 32
Deencapsulation 33
Peer-to-Peer Communication 34
The TCP/IP Protocol Stack 35
OSI Model Versus TCP/IP Stack 36
Chapter 3 LANs and Ethernet 43
Chapter Objectives 44
Understanding LANs 44
The Definition of a LAN 44
Components of a LAN 45
Functions of a LAN 46
How Big Is a LAN? 47
Ethernet 48
Ethernet LAN Standards 48
LLC Sublayer 49
MAC Sublayer 49
The Role of CSMA/CD in Ethernet 49
Ethernet Frames 50
Ethernet Frame Addressing 52
Ethernet Addresses 52
MAC Addresses and Binary-Hexadecimal Numbers 53
Connecting to an Ethernet LAN 54
Ethernet Network Interface Cards 54
Ethernet Media and Connection Requirements 55
Connection Media 55
Unshielded Twisted-Pair Cable 57
UTP Implementation 58
Auto-MDIX 62
Optical Fiber 62
Chapter 4 Operating Cisco IOS Software 69
Chapter Objectives 70
Cisco IOS Software Features and Functions 70
Cisco IOS CLI Functions 71
Configuring Network Devices 72
External Configuration Sources 73
Entering the EXEC Modes 75
Help in the CLI 77
Enhanced Editing Commands 79
Command History 81
Managing Cisco IOS Configuration 81
Improving the User Experience in the CLI 84
Chapter 5 Switch Technologies 89
Chapter Objectives 90
The Need for Switches 90
Switch Characteristics 92
Starting and Configuring a Switch 93
Switch Installation 93
Switch LED Indicators 93
Connecting to the Console Port 94
Basic Switch Configuration 95
Verifying the Switch Initial Startup Status 97
Switching Operation 99
Duplex Communication 100
Troubleshooting Common Switch Media Issues 102
Media Issues 102
Port Issues 106
Chapter 6 VLANs and Trunks 111
Chapter Objectives 112
Implementing VLANs and Trunks 112
Issues in a Poorly Designed Network 112
VLAN Overview 114
Understanding Trunking with 802.1Q 115
802.1Q Frame 116
802.1Q Native VLAN 117
Understanding VLAN Trunking Protocol 118
VTP Modes 118
VTP Operation 119
VTP Pruning 120
Configuring VLANs and Trunks 121
VTP Configuration 122
Example: VTP Configuration 122
802.1Q Trunking Configuration 123
VLAN Creation 126
VLAN Port Assignment 128
Adds, Moves, and Changes for VLANs 129
Adding VLANs and Port Membership 129
Changing VLANs and Port Membership 130
Deleting VLANs and Port Membership 130
VLAN Design Considerations 130
Physical Redundancy in a LAN 131
Routing Between VLANs 133
Understanding Inter-VLAN Routing 133
Example: Router on a Stick 134
Example: Subinterfaces 135
Configuring Inter-VLAN Routing Using Router on a Stick 135
Using Multilayer (Layer 3) Switches 136
Chapter 7 The TCP/IP Internet Layer 139
Chapter Objectives 140
Understanding TCP/IP's Internet Layer 140
IP Network Addressing 140
IP Address Classes 143
Network and Broadcast Addresses 145
Public and Private IP Addresses 149
Address Exhaustion 150
Addressing Services 153
Dynamic Host Configuration Protoc…