This book contains 29 core chapters, with each chapter covering a subset of the topics on the CCNA exam. The book organizes the chapters into parts of three to five chapters. The core chapters cover the following topics:
■ Part I: Introduction to Networking
■ Chapter 1, “Introduction to TCP/IP Networking,” introduces the central ideas and terms used by TCP/IP, and contrasts the TCP/IP networking model with the OSI model.
■ Chapter 2, “Fundamentals of Ethernet LANs,” introduces the concepts and terms used when building Ethernet LANs.
■ Chapter 3, “Fundamentals of WANs and IP Routing,” covers the basics of the data-link layer for WANs in the context of IP routing but emphasizes the main network layer protocol for TCP/IP. This chapter introduces the basics of IPv4, including IPv4 addressing and routing.
■ Part II: Implementing Ethernet LANs
■ Chapter 4, “Using the Command-Line Interface,” explains how to access the textbased user interface of Cisco Catalyst LAN switches.
■ Chapter 5, “Analyzing Ethernet LAN Switching,” shows how to use the Cisco CLI to verify the current status of an Ethernet LAN and how it switches Ethernet frames.
■ Chapter 6, “Configuring Basic Switch Management,” explains how to configure Cisco switches for basic management features, such as remote access using Telnet and SSH.
■ Chapter 7, “Configuring and Verifying Switch Interfaces,” shows how to configure a variety of switch features that apply to interfaces, including duplex/speed.
■ Part III: Implementing VLANs and STP
■ Chapter 8, “Implementing Ethernet Virtual LANs,” explains the concepts and configuration surrounding virtual LANs, including VLAN trunking.
■ Chapter 9, “Spanning Tree Protocol Concepts,” discusses the concepts behind IEEE Spanning Tree Protocol (STP), including Rapid STP (RSTP) and how they make some switch interfaces block frames to prevent frames from looping continuously around a redundant switched LAN.
■ Chapter 10, “RSTP and EtherChannel Configuration,” shows how to configure and verify RSTP and Layer 2 EtherChannels on Cisco switches. ||||||||||||||||||||
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■ Part IV: IPv4 Addressing
■ Chapter 11, “Perspectives on IPv4 Subnetting,” walks you through the entire concept of subnetting, from starting with a Class A, B, or C network to a completed subnetting design as implemented in an enterprise IPv4 network.
■ Chapter 12, “Analyzing Classful IPv4 Networks,” explains how IPv4 addresses originally fell into several classes, with unicast IP addresses being in Class A, B, and C. This chapter explores all things related to address classes and the IP network concept created by those classes.
■ Chapter 13, “Analyzing Subnet Masks,” shows how an engineer can analyze the key facts about a subnetting design based on the subnet mask. This chapter shows how to look at the mask and IP network to determine the size of each subnet and the number of subnets.
■ Chapter 14, “Analyzing Existing Subnets,” describes how most troubleshooting of IP connectivity problems starts with an IP address and mask. This chapter shows how to take those two facts and find key facts about the IP subnet in which that host resides.
■ Part V: IPv4 Routing
■ Chapter 15, “Operating Cisco Routers,” is like Chapter 8, focusing on basic device management, but it focuses on routers instead of switches.
■ Chapter 16, “Configuring IPv4 Addressing and Static Routes,” discusses how to add IPv4 address configuration to router interfaces and how to configure static IPv4 routes.
■ Chapter 17, “IP Routing in the LAN,” shows how to configure and troubleshoot different methods of routing between VLANs, including Router-on-a-Stick (ROAS), Layer 3 switching with SVIs, Layer 3 switching with routed ports, and using Layer 3 EtherChannels.
■ Chapter 18, “Troubleshooting IPv4 Routing,” focuses on how to use two key troubleshooting tools to find routing problems: the ping and traceroute commands.
■ Part VI: OSPF
■ Chapter 19, “Understanding OSPF Concepts,” introduces the fundamental operation of the Open Shortest Path First (OSPF) protocol, focusing on link state fundamentals, neighbor relationships, flooding link state data, and calculating routes based on the lowest cost metric.
■ Chapter 20, “Implementing OSPF,” takes the concepts discussed in the previous chapter and shows how to configure and verify those same features.
■ Chapter 21, “OSPF Network Types and Neighbors,” takes the next steps in OSPF configuration and verification by looking in more depth at the concepts of how routers enable OSPF on interfaces, and the conditions that must be true before two routers will succeed in becoming OSPF neighbors.
■ Part VII: IP Version 6
■ Chapter 22, “Fundamentals of IP Version 6,” discusses the most basic concepts of IP version 6, focusing on the rules for writing and interpreting IPv6 addresses.
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■ Chapter 23, “IPv6 Addressing and Subnetting,” works through the two branches of unicast IPv6 addresses—global unicast addresses and unique local addressesthat act somewhat like IPv4 public and private addresses, respectively.
■ Chapter 24, “Implementing IPv6 Addressing on Routers,” shows how to configure IPv6 routing and addresses on routers, while discussing a variety of special IPv6 addresses.
■ Chapter 25, “Implementing IPv6 Routing,” shows how to add static routes to an IPv6 router’s routing table.
■ Part VIII: Wireless LANs
■ Chapter 26, “Fundamentals of Wireless Networks,” introduces the foundational concepts of wireless 802.11 LANs, including wireless topologies and basic wireless radio communications protocols.
■ Chapter 27, “Analyzing Cisco Wireless Architectures,” turns your attention to the questions related to systematic and architectural issues surrounding how to build wireless LANs and explains the primary options available for use.
■ Chapter 28, “Securing Wireless Networks,” explains the unique security challenges that exist in a wireless LAN and the protocols and standards used to prevent different kinds of attacks.
■ Chapter 29, “Building a Wireless LAN,” shows how to configure and secure a wireless LAN using a Wireless LAN Controller (WLC).
■ Part IX: Print Appendixes
■ Appendix A, “Numeric Reference Tables,” lists several tables of numeric information, including a binary-to-decimal conversion table and a list of powers of 2.
■ Appendix B, “CCNA 200-301, Volume 1 Exam Updates,” is a place for the author to add book content mid-edition. Always check online for the latest PDF version of this appendix; the appendix lists download instructions.
■ Appendix C, “Answers to the ‘Do I Know This Already?’ Quizzes,” includes the explanations to all the “Do I Know This Already” quizzes.
■ The Glossary contains definitions for all the terms listed in the “Key Terms You Should Know” sections at the conclusion of the chapters.
■ Part X: Online Appendixes
■ Practice Appendixes
The following appendixes are available in digital format from the companion website. These appendixes provide additional practice for several networking processes that use some math.
■ Appendix E, “Practice for Chapter 13: Analyzing Subnet Masks”
■ Appendix F, “Practice for Chapter 14: Analyzing Existing Subnets”
■ Appendix G, “Practice for Chapter 22: Fundamentals of IP Version 6” ||||||||||||||||||||
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■ Appendix H, “Practice for Chapter 24: Implementing IPv6 Addressing on Routers”
■ Content from Previous Editions
Although the publisher restarts numbering at edition “1” each time, the name of the related exam changes in a significant way. In function, this book is in effect part of the 9th edition of the CCNA Cert Guide materials from Cisco Press. From edition to edition, some readers over the years have asked that we keep some select chapters with the book. Keeping content that Cisco removed from the exam, but that may still be useful, can help the average reader as well as instructors who use the materials to teach courses with this book. The following appendices hold this edition’s content from previous editions:
■ Appendix J, “Topics from Previous Editions,” is a collection of small topics from prior editions. None of the topics justify a complete appendix by themselves, so we collect the small topics into this single appendix.
■ Appendix K, “Analyzing Ethernet LAN Designs,” examines various ways to design Ethernet LANs, discussing the pros and cons, and explains common design terminology.
■ Appendix L, “Subnet Design,” takes a design approach to subnetting. This appendix begins with a classful IPv4 network and asks why a particular mask might be chosen, and if chosen, what subnet IDs exist.
■ Appendix M, “Practice for Appendix L: Subnet Design”
■ Appendix N, “Variable-Length Subnet Masks,” moves away from the assumption of one subnet mask per network to multiple subnet masks per network, which makes subnetting math and processes much more challenging. This appendix explains those challenges.
■ Appendix O, “Spanning Tree Protocol Implementation,” shows how to configure and verify STP on Cisco switches.
■ Appendix P, “LAN Troubleshooting,” examines the most common LAN switching issues and how to discover those issues when troubleshooting a network. The appendix includes troubleshooting topics for STP/RSTP, Layer 2 EtherChannel, LAN switching, VLANs, and VLAN trunking.
■ Appendix Q, “Troubleshooting IPv4 Routing Protocols,” walks through the most common problems with IPv4 routing protocols, while alternating between OSPF examples and EIGRP examples.
■ Miscellaneous Appendixes
■ Appendix I, “Study Planner,” is a spreadsheet with major study milestones, where you can track your progress through your study.
■ Appendix R, “Exam Topics Cross Reference,” provides some tables to help you find where each exam objective is covered in the book.
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