Senior Acquisitions Editor: Kenyon Brown Development Editor: Kim Wimpsett
Yüklə 22,5 Mb. Pdf görüntüsü
|
- Bu səhifədəki naviqasiya:
- About the Author Todd Lammle
- List of Tables
- Table I.13 Table I.14 Table I.15 Table I.16 Table I.17
- Table 3.3 Table 3.4 Table 3.5
- Table 7.3
- Table 14.1 Table 14.2
- List of Illustrations
- Figure 1.5
- Figure 1.12
- Figure 1.16
- Figure 2.4
- Figure 2.10
- Figure 2.16
- Figure 2.24
- Figure 3.8 HTTP Figure 3.9 NTP Figure 3.10
|
Senior Acquisitions Editor: Kenyon Brown Development Editor: Kim Wimpsett Technical Editor: Todd Montgomery Production Editor: Christine O'Connor Copy Editor: Judy Flynn Editorial Manager: Mary Beth Wakefield Production Manager: Kathleen Wisor Executive Publisher: Jim Minatel Book Designers: Judy Fung and Bill Gibson Proofreader: Josh Chase, Word One New York Indexer: Johnna vanHoose Dinse Project Coordinator, Cover: Brent Savage Cover Designer: Wiley Cover Image: Getty Images Inc./Jeremy Woodhouse Copyright © 2016 by John Wiley & Sons, Inc., Indianapolis, Indiana Published simultaneously in Canada ISBN: 978-1-119-28828-2 ISBN: 978-1-119-28830-5 (ebk.) ISBN: 978-1-119-28829-9 (ebk.) Manufactured in the United States of America No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions . Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation warranties of fitness for a particular purpose. No warranty may be created or extended by sales or promotional materials. The advice and strategies contained herein may not be suitable for every situation. This work is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other professional services. If professional assistance is required, the services of a competent professional person should be sought. Neither the publisher nor the author shall be liable for damages arising herefrom. The fact that an organization or Web site is referred to in this work as a citation and/or a potential source of further information does not mean that the author or the publisher endorses the information the organization or Web site may provide or recommendations it may make. Further, readers should be aware that Internet Web sites listed in this work may have changed or disappeared between when this work was written and when it is read. For general information on our other products and services or to obtain technical support, please contact our Customer Care Department within the U.S. at (877) 762-2974, outside the U.S. at (317) 572-3993 or fax (317) 572-4002. Wiley publishes in a variety of print and electronic formats and by print-on-demand. Some material included with standard print versions of this book may not be included in e-books or in print-on-demand. If this book refers to media such as a CD or DVD that is not included in the
version you purchased, you may download this material at http://booksupport.wiley.com . For more information about Wiley products, visit www.wiley.com . Library of Congress Control Number: 2016950861 TRADEMARKS: Wiley, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without written permission. CCNA is a registered trademark of Cisco Technology, Inc. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book.
Acknowledgments There are many people who work to put a book together, and as an author, I dedicated an enormous amount of time to write this book, but it would have never been published without the dedicated, hard work of many other people. Kenyon Brown, my acquisitions editor, is instrumental to my success in the world of Cisco certification. Ken, I look forward to our continued progress together in both the print and video markets! My technical editor, Todd Montgomery, was absolutely amazing to work with and he was always there to check my work and make suggestions. Thank you! Also, I've worked with Kim Wimpsett, the development editor, for years now and she coordinated all the pages you hold in your hands as they flew from thoughts in my head to the production process. Christine O'Connor, my production editor, and Judy Flynn, my copyeditor, were my rock and foundation for formatting and intense editing of every page in this book. This amazing team gives me the confidence to help keep me moving during the difficult and very long days, week after week. How Christine stays so organized with all my changes as well as making sure every figure is in the right place in the book is still a mystery to me! You're amazing, Christine! Thank you! Judy understands my writing style so well now, after doing at least a dozen books with me, that she even sometimes finds a technical error that may have slipped through as I was going through the material. Thank you, Judy, for doing such a great job! I truly thank you both. About the Author Todd Lammle is the authority on Cisco certification and internetworking and is Cisco certified in most Cisco certification categories. He is a world-renowned author, speaker, trainer, and consultant. Todd has three decades of experience working with LANs, WANs, and large enterprise licensed and unlicensed wireless networks, and lately he's been implementing large Cisco Firepower networks. His years of real-world experience are evident in his writing; he is not just an author but an experienced networking engineer with very practical experience working on the largest networks in the world, at such companies as Xerox, Hughes Aircraft, Texaco, AAA, Cisco, and Toshiba, among many others. Todd has published over 60 books, including the very popular CCNA: Cisco Certified Network Associate Study Guide, CCNA Wireless Study Guide, CCNA Data Center Study Guide, and SSFIPS (Firepower), all from Sybex. He runs an international consulting and training company based in Colorado, Texas, and San Francisco. You can reach Todd through his forum and blog at www.lammle.com/ccna .
CONTENTS Introduction Assessment Test Answers to Assessment Test Part 1 ICND1 Chapter 1 Internetworking Internetworking Basics Internetworking Models The OSI Reference Model Summary
Exam Essentials Written Labs Review Questions Chapter 2 Ethernet Networking and Data Encapsulation Ethernet Networks in Review Ethernet Cabling Data Encapsulation The Cisco Three-Layer Hierarchical Model Summary Exam Essentials Written Labs Review Questions Chapter 3 Introduction to TCP/IP Introducing TCP/IP TCP/IP and the DoD Model IP Addressing IPv4 Address Types Summary
Exam Essentials Written Labs Review Questions Chapter 4 Easy Subnetting Subnetting Basics Summary Exam Essentials Written Labs Review Questions Chapter 5 VLSMs, Summarization, and Troubleshooting TCP/IP Variable Length Subnet Masks (VLSMs) Summarization Troubleshooting IP Addressing Summary Exam Essentials Written Lab 5 Review Questions Chapter 6 Cisco’s Internetworking Operating System (IOS) The IOS User Interface Command-Line Interface (CLI) Administrative Configurations Router and Switch Interfaces Viewing, Saving, and Erasing Configurations Summary Exam Essentials Written Lab 6: IOS Understanding Hands-on Labs Review Questions Chapter 7 Managing a Cisco Internetwork The Internal Components of a Cisco Router and Switch Backing Up and Restoring the Cisco Configuration Configuring DHCP Syslog
Network Time Protocol (NTP) Exploring Connected Devices Using CDP and LLDP Using Telnet Resolving Hostnames Checking Network Connectivity and Troubleshooting Summary
Exam Essentials Written Labs 7 Hands-on Labs Review Questions Chapter 8 Managing Cisco Devices Managing the Configuration Register Backing Up and Restoring the Cisco IOS Summary
Exam Essentials Written Lab 8 Hands-on Labs Review Questions Chapter 9 IP Routing Routing Basics The IP Routing Process Configuring IP Routing Configuring IP Routing in Our Network Dynamic Routing Routing Information Protocol (RIP) Summary
Exam Essentials Written Lab 9 Hands-on Labs Review Questions Chapter 10 Layer 2 Switching Switching Services Configuring Catalyst Switches Summary
Exam Essentials Written Lab 10 Hands-on Labs Review Questions Chapter 11 VLANs and Inter-VLAN Routing VLAN Basics Identifying VLANs Routing between VLANs Configuring VLANs Summary
Exam Essentials Written Lab 11 Hands-on Labs Review Questions Chapter 12 Security Perimeter, Firewall, and Internal Routers Introduction to Access Lists Standard Access Lists Extended Access Lists Monitoring Access Lists Summary Exam Essentials Written Lab 12 Hands-on Labs Review Questions Chapter 13 Network Address Translation (NAT) When Do We Use NAT? Types of Network Address Translation NAT Names How NAT Works Testing and Troubleshooting NAT Summary
Exam Essentials Written Lab 13 Hands-on Labs Review Questions Chapter 14 Internet Protocol Version 6 (IPv6) Why Do We Need IPv6? The Benefits and Uses of IPv6 IPv6 Addressing and Expressions How IPv6 Works in an Internetwork IPv6 Routing Protocols Configuring IPv6 on Our Internetwork Configuring Routing on Our Internetwork Summary Exam Essentials Written Labs 14 Hands-on Labs Review Questions PART II ICND 2 Chapter 15 Enhanced Switched Technologies VLAN Review VLAN Trunking Protocol (VTP) Configuring VTP Spanning Tree Protocol (STP) Types of Spanning-tree Protocols Modifying and Verifying the Bridge ID Spanning-Tree Failure Consequences PortFast and BPDU Guard EtherChannel Summary Exam Essentials Written Lab 15 Hands-on Labs Review Questions Chapter 16 Network Device Management and Security Mitigating Threats at the Access Layer External Authentication Options Client Redundancy Issues Introducing First Hop Redundancy Protocols (FHRPs) Hot Standby Router Protocol (HSRP) Summary
Exam Essentials Written Lab 16 Review Questions Chapter 17 Enhanced IGRP EIGRP Features and Operations Configuring EIGRP Verifying and Troubleshooting EIGRP EIGRPv6
Summary Exam Essentials Written Lab 17 Hands-on Labs Review Questions Chapter 18 Open Shortest Path First (OSPF) Open Shortest Path First (OSPF) Basics Configuring OSPF OSPF and Loopback Interfaces Verifying OSPF Configuration Summary Exam Essentials Written Lab 18 Hands-on Labs Review Questions Chapter 19 Multi-Area OSPF OSPF Scalability Categories of Multi-area Components Basic Multi-area Configuration Verifying and Troubleshooting Multi-area OSPF Networks Troubleshooting OSPF Scenario OSPFv3
Summary Exam Essentials Written Lab 19 Hands-on Labs Review Questions Chapter 20 Troubleshooting IP, IPv6, and VLANs Troubleshooting IP Network Connectivity Troubleshooting IPv6 Network Connectivity Troubleshooting VLAN Connectivity Summary
Exam Essentials Written Lab 20 Review Questions Chapter 21 Wide Area Networks Introduction to Wide Area Networks Cabling the Serial Wide Area Network High-Level Data-Link Control (HDLC) Protocol Point-to-Point Protocol (PPP) Virtual Private Networks GRE Tunnels Single-Homed EBGP Summary
Exam Essentials Written Lab 21 Hands-on Labs Review Questions Chapter 22 Evolution of Intelligent Networks Switch Stacking Cloud Computing and Its Effect on the Enterprise Network Overview of Network Programmability in Enterprise Network Application Programming Interfaces (APIs) Cisco APIC-EM Cisco Intelligent WAN Quality of Service Trust Boundary QoS Mechanisms Summary Exam Essentials Written Lab 22 Review Questions Appendix A Answers to Written Labs Chapter 1: Internetworking Chapter 2: Ethernet Networking and Data Encapsulation Chapter 3: Introduction to TCP/IP Chapter 4: Easy Subnetting Chapter 5: VLSMs, Summarization and Troubleshooting TCP/IP Chapter 6: Cisco’s Internetworking Operating System (IOS) Chapter 7: Managing a Cisco Internetwork Chapter 8: Managing Cisco Devices Chapter 9: IP Routing Chapter 10: Layer 2 Switching Chapter 11: VLANs and InterVLAN Routing Chapter 12: Security Chapter 13: Network Address Translation (NAT) Chapter 14: Internet Protocol Version 6 (IPv6) Chapter 15: Enhanced Switched Technologies Chapter 16: Network Device Management and Security Chapter 17: Enhanced IGRP Chapter 18: Open Shortest Path First (OSPF) Chapter 19: Multi-Area OSPF Chapter 20: Troubleshooting IP, IPv6, and VLANs Chapter 21: Wide Area Networks Chapter 22: Evolution of Intelligent Networks Appendix B Answers to Review Questions Chapter 1: Internetworking Chapter 2: Ethernet Networking and Data Encapsulation Chapter 3: Introduction to TCP/IP Chapter 4: Easy Subnetting Chapter 5: VLSMs, Summarization, and Troubleshooting TCP/IP Chapter 6: Cisco’s Internetworking Operating System (IOS) Chapter 7: Managing a Cisco Internetwork Chapter 8: Managing Cisco Devices Chapter 9: IP Routing Chapter 10: Layer 2 Switching Chapter 11: VLANs and InterVLAN Routing Chapter 12: Security Chapter 13: Network Address Translation (NAT) Chapter 14: Internet Protocol Version 6 (IPv6) Chapter 15: Enhanced Switched Technologies Chapter 16: Network Device Management and Security Chapter 17: Enhanced IGRP Chapter 18: Open Shortest Path First (OSPF) Chapter 19: Multi-Area OSPF Chapter 20: Troubleshooting IP, IPv6, and VLANs Chapter 21: Wide Area Networks Chapter 22: Evolution of Intelligent Networks Appendix C Disabling and Configuring Network Services Blocking SNMP Packets Disabling Echo Turning off BootP and Auto-Config Disabling the HTTP Interface Disabling IP Source Routing Disabling Proxy ARP Disabling Redirect Messages Disabling the Generation of ICMP Unreachable Messages Disabling Multicast Route Caching Disabling the Maintenance Operation Protocol (MOP) Turning Off the X.25 PAD Service Enabling the Nagle TCP Congestion Algorithm Logging Every Event Disabling Cisco Discovery Protocol Disabling the Default Forwarded UDP Protocols Cisco’s auto secure Advert EULA
List of Tables Introduction Table I.1 Table I.2 Table I.3 Table I.4 Table I.5 Table I.6 Table I.7 Table I.8 Table I.9 Table I.10 Table I.11 Table I.12 Table I.13 Table I.14 Table I.15 Table I.16 Table I.17 Chapter 2 Table 2.1 Table 2.2 Table 2.3 Chapter 3 Table 3.1 Table 3.2 Table 3.3 Table 3.4 Table 3.5 Chapter 4 Table 4.1 Table 4.2 Table 4.3 Chapter 5 Table 5.1 Chapter 6 Table 6.1 Table 6.2 Table 6.3 Chapter 7 Table 7.1 Table 7.2 Table 7.3 Chapter 8 Table 8.1 Table 8.2 Table 8.3 Chapter 9 Table 9.1 Table 9.2 Chapter 12 Table 12.1 Chapter 13 Table 13.1 Table 13.2 Table 13.3 Chapter 14 Table 14.1 Table 14.2 Chapter 15 Table 15.1 Chapter 17 Table 17.1 Table 17.2 Chapter 18 Table 18.1 Table 18.2 Table 18.3 Chapter 19 Table 19.1 Chapter 21 Table 21.1 List of Illustrations Introduction Figure I.1 The Cisco certification path. Chapter 1 Figure 1.1 A very basic network Figure 1.2 A switch can break up collision domains. Figure 1.3 Routers create an internetwork. Figure 1.4 Internetworking devices Figure 1.5 Switched networks creating an internetwork Figure 1.6 Other devices typically found in our internetworks today.
Figure 1.7 The upper layers Figure 1.8 The lower layers Figure 1.9 OSI layer functions Figure 1.10 Establishing a connection-oriented session Figure 1.11 Transmitting segments with flow control Figure 1.12 Windowing Figure 1.13 Transport layer reliable delivery Figure 1.14 Routing table used in a router Figure 1.15 A router in an internetwork. Each router LAN interface is a broadcast domain. Routers break up broadcast domains by default and provide WAN services.
Chapter 2 Figure 2.1 Legacy collision domain design Figure 2.2 A typical network you’d see today Figure 2.3 A router creates broadcast domain boundaries. Figure 2.4 CSMA/CD Figure 2.5 Half-duplex example Figure 2.6 Full-duplex example Figure 2.7 Ethernet addressing using MAC addresses Figure 2.8 Typical Ethernet frame format Figure 2.9 Category 5 Enhanced UTP cable Figure 2.10 Straight-through Ethernet cable Figure 2.11 Crossover Ethernet cable Figure 2.12 Typical uses for straight-through and cross-over Ethernet cables Figure 2.13 UTP Gigabit crossover Ethernet cable Figure 2.14 Rolled Ethernet cable Figure 2.15 Configuring your console emulation program Figure 2.16 A Cisco 2960 console connections Figure 2.17 RJ45 UTP cable question #1 Figure 2.18 RJ45 UTP cable question #2 Figure 2.19 Typical fiber cable. Figure 2.20 Multimode and single-mode fibers Figure 2.21 Data encapsulation Figure 2.22 PDU and layer addressing Figure 2.23 Port numbers at the Transport layer Figure 2.24 The Cisco hierarchical model Chapter 3 Figure 3.1 The DoD and OSI models Figure 3.2 The TCP/IP protocol suite Figure 3.3 Telnet Figure 3.4 Secure Shell Figure 3.5 FTP Figure 3.6 TFTP Figure 3.7 SNMP Figure 3.8 HTTP Figure 3.9 NTP Figure 3.10 DNS Yüklə 22,5 Mb. Dostları ilə paylaş:
|