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Straight from Cisco: official complete assessment, review, and practice for the newest CCNA ICND1 exam!
The #1 selling CCNA preparation self-study guide, fully revised for every current CCENT/CCNA ICND1 exam objective
In-depth, expert explanations of all protocols, commands, and technologies covered on the ICND1 exam
Book and DVD packed with features to help students master today's challenging testing methods -- including scenario-based configuration questions that mimic the actual exam
60 minutes of video illuminate the complex topic of subnetting
Cisco Press is the official publisher for the New CCENT Certification.& The New Edition of this Best-Selling Official Cert Guide includes Updated Content, New Exercises, 400 Practice Questions, and 90 Minutes of Video Training -- PLUS the CCENT Network Simulator Lite Edition with lab exercises. &&The CCENT Certification is now the only prerequisite for the CCNA Routing and Switching, CCNA Voice, CCNA Wireless,CCNA Security and CCDA Certifications.
Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide from Cisco Press enables you to succeed on the exam the first time. Best-selling author and expert instructor Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.
This complete study package includes A test-preparation routine proven to help you pass the examDo I Know This Already? quizzes, which enable you to decide how much time you need to spend on each section Chapter-ending and part-ending exercises, which help you drill on key concepts you must know thoroughlyTroubleshooting sections, which help you master the complex scenarios you will face on the exam The powerful Pearson IT Certification Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reports A free copy of the CCENT/CCNA ICND1 100-101 Network Simulator Lite software, complete with meaningful lab exercises that help you hone your hands-on skills with the command-line interface for routers and switches More than 90 minutes of video mentoring from the author A final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategies Study plan suggestions and templates to help you organize and optimize your study time This official study guide helps you master all the topics on the CCENT/CCNA ICND1 exam, including Networking fundamentals Ethernet LANs and switches IPv4 addressing and subnetting Operating Cisco routers Configuring OSPF ACLs and NAT IPv6 fundamentals
Wendell Odom, CCIE& No. 1624, is the most respected author of Cisco networking books in the world. His past titles include books on the entry-level Cisco certifications (CCENT and CCNA), the more advanced CCNP, and the industry-renowned CCIE. His books are known for their technical depth and accuracy. Wendell has worked as a network engineer, consultant, instructor, course developer, and book author, and he has produced videos, software, and blogs related to Cisco certifications. His website, with links to various study tools and resources, is at . Well regarded for its level of detail, study plans, assessment features, challenging review questions and exercises, video instruction, and hands-on labs, this official study guide helps you master the concepts and techniques that ensure your exam success. Companion DVD The DVD contains more than 400 unique practice exam questions, ICND1 Network Simulator Lite software, and 90 minutes of video training.
Includes Exclusive Offer for 70% Off Premium Edition eBook and Practice Test
Pearson IT Certification Practice Test minimum system requirements: Windows XP (SP3), Windows Vista (SP2), Windows 7, or Windows 8; Microsoft .NET Framework 4.0 C Pentium class 1GHz processor (or equivalent); 512 MB RAM; 650 MB disc space plus 50 MB for each downloaded practice exam CCENT ICND1 Network Simulator Lite minimum system requirements: Microsoft Windows XP (SP3), Windows Vista (32-bit/64-bit) with SP1, Windows 7 (32-bit/64-bit) or Windows 8 (32-bit/64-bit, x86 processors), Mac OS X 10.6, 10.7, or 10.8Intel Pentium III 1GHz or faster processor512 MB RAM (1GB recommended)1 GB hard disk space32-bit color depth at
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Other applications installed during installation: Adobe AIR 3.6.0Captive JRE 6
This volume is part of the Official Cert Guide series from Cisco Press. Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears.
The 1 hour 14 minute presentation found at the following link was given by Wendell Odom to cover &Teaching the New CCENT ICND1 100-101 & CCNA ICND2 200-101 Exam Material.&
(148 KB .pdf)
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Cisco Press is the official publisher for the New CCENT Certification.& The New Edition of this Best-Selling Official Cert Guide Premium Edition includes Updated Content, New Exercises, 500 Practice Questions, and 90 Minutes of Video Training -- PLUS the CCENT Network Simulator Lite Edition with 26 Free Network Simulator Labs.&&
The exciting new CCENT/CCNA ICND1 100-101 Official Cert Guide, Premium Edition eBook and Practice Test is a digital-only certification preparation product combining an eBook with enhanced Pearson IT Certification Practice Test. The Premium Edition eBook and Practice Test contains the following items:Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide eBookFour full ICND1 practice exams combined with four full CCNA practice exams, part review questions, and book questions (over 500 unique exam-realistic questions) utilizing the Pearson IT Certification Practice Test (PCPT) softwareDirect links from each question to detailed tutorials to help you understand the concepts behind the questionsPerformance Tracking and feedback on a module-by-module basis, laying out a complete assessment of your knowledge to help you focus your study where it is needed mostPDF, EPUB, and MOBI (Kindle eBook) formats, which are accessible via your PC, tablet, eBook reader, and Smartphone About the Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide eBook The Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide enables you to succeed on the exam the first time. Best-selling author and expert instructor Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.
This complete study package includesA test-preparation routine proven to help you pass the examsDo I Know This Already? quizzes, which enable you to decide how much time you need to spend on each sectionChapter-ending and part-ending exercises, which help you drill on key concepts you must know thoroughlyTroubleshooting sections, which help you master the complex scenarios you will face on the examThe powerful Pearson IT Certification Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reportsA free copy of the CCENT/CCNA ICND1 100-101 Network Simulator Lite software, complete with meaningful lab exercises that help you hone your hands-on skills with the command-line interface for routers and switchesMore than 90 minutes of video mentoring from the authorA final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategiesA final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategiesStudy plan suggestions and templates to help you organize and optimize your study timeGo to the back pages of your eBook for instructions on how to access the Network Simulator Lite and personal video mentoring content. This official study guide helps you master all the topics on the CCENT/CCNA ICND1 exam, including Networking fundamentalsEthernet LANs and switchesIPv4 addressing and subnettingOperating Cisco routersConfiguring OSPFACLs and NATIPv6 fundamentalsAbout the CCENT/CCNA ICND1 100-101 Network Simulator Lite Software The CCENT Network Simulator Lite software, which simulates the experience of working on actual Cisco routers and switches, contains the following free simulator labs: 1. Configuring IP Addresses I 2. Configuring IP Addresses II 3. Connected Routes 4. Static Routes I 5. Static Routes II 6. Subnet Zero 7. Loopback Interfaces 8. Subnet ID Calculation 9. IPv4 Address Rejection 10. IPv4 Route Selection 11. Subnetting and Addressing Configuration Scenario 12. Static Routing Configuration Scenario 13. Network Discovery Troubleshooting Scenario Wendell Odom, CCIE&&No. 1624, is the most respected author of Cisco networking books in the world. His past titles include books on the entry-level Cisco certifications (CCENT and CCNA), the more advanced CCNP, and the industry-renowned CCIE. His books are known for their technical depth and accuracy. Wendell has worked as a network engineer, consultant, instructor, course developer, and book author, and he has produced videos, software, and blogs related to Cisco certifications. His website, with links to various study tools and resources, is at . Pearson IT Certification Practice Test minimum system requirements:
Windows XP (SP3), Windows Vista (SP2), or Windows 7; Microsoft .NET Framework 4.0 C Microsoft SQL Server Compact 4.0; Pentium class 1GHz processor (or equivalent); 512 MB RAM; 650 MB disc space plus 50 MB for each downloaded practice exam CCENT ICND1 Network Simulator Lite minimum system requirements: Microsoft Windows XP (SP3), Windows Vista (32-bit/64-bit) with SP1, Windows 7 (32-bit/64-bit) or Windows 8 (32-bit/64-bit, x86 processors), Mac OS X 10.6, 10.7, or 10.8Intel Pentium III 1GHz or faster processor512 MB RAM (1GB recommended)1 GB hard disk space32-bit color depth at
resolutionAdobe Acrobat Reader version 8 and above Other applications installed during installation: Adobe AIR 3.6.0Captive JRE 6
Online Sample Chapter
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Table of Contents
Introduction xxxi
Getting Started 3
Part I: Networking Fundamentals 12
Chapter 1 The TCP/IP and OSI Networking Models 15
&Do I Know This Already?& Quiz 15
Foundation Topics 18
Perspectives on Networking 18
TCP/IP Networking Model 19
&&& History Leading to TCP/IP 20
&&& Overview of the TCP/IP Networking Model 21
&&& TCP/IP Application Layer 23
&&&&&&& HTTP Overview 23
&&&&&&& HTTP Protocol Mechanisms 24
&&& TCP/IP Transport Layer 25
&&&&&&& TCP Error Recovery Basics 25
&&&&&&& Same-Layer and Adjacent-Layer Interactions 26
&&& TCP/IP Network Layer 26
&&&&&&& Internet Protocol and the Postal Service 27
&&&&&&& Internet Protocol Addressing Basics 28
&&&&&&& IP Routing Basics 29
&&& TCP/IP Link Layer (Data Link Plus Physical) 30
&&& TCP/IP Model and Terminology 32
&&&&&&& Comparing the Original and Modern TCP/IP Models 32
&&&&&&& Data Encapsulation Terminology 32
&&&&&&& Names of TCP/IP Messages 34
OSI Networking Model 34
&&& Comparing OSI and TCP/IP 34
&&& Describing Protocols by Referencing the OSI Layers 35
&& &OSI Layers and Their Functions 36
&&& OSI Layering Concepts and Benefits 37
&&& OSI Encapsulation Terminology 38
Exam Preparation Tasks 40
Chapter 2 Fundamentals of Ethernet LANs 43
&Do I Know This Already?& Quiz 43
Foundation Topics 46
An Overview of LANs 46
&&& Typical SOHO LANs 46
&&& Typical Enterprise LANs 47
&&& The Variety of Ethernet Physical Layer Standards 48
&&& Consistent Behavior over All Links Using the Ethernet Data Link Layer 49
Building Physical Ethernet Networks with UTP 50
&&& Transmitting Data Using Twisted Pairs 50
&&& Breaking Down a UTP Ethernet Link 51
&&& UTP Cabling Pinouts for 10BASE-T and 100BASE-T 53
&&&&&&& Straight-Through Cable Pinout 54
&&&&&&& Crossover Cable Pinout 55
&&&&&&& Choosing the Right Cable Pinouts 56
&&& UTP Cabling Pinouts for 1000BASE-T 57
Sending Data in Ethernet Networks 57
&&& Ethernet Data Link Protocols 58
&&&&&&& Ethernet Addressing 59
&&&&&&& Identifying Network Layer Protocols with the Ethernet Type Field 60
&&&&&&& Error Detection with FCS 61
&&& Sending Ethernet Frames with Switches and Hubs 62
&&&&&&& Sending in Modern Ethernet LANs Using Full-Duplex 62
&&&&&&& Using Half-Duplex with LAN Hubs 63
Exam Preparation Tasks 65
Chapter 3 Fundamentals of WANs 67
&Do I Know This Already?& Quiz 67
Foundation Topics 70
Leased Line WANs 70
&&& Positioning Leased Lines with LANs and Routers 70
&&& Physical Details of Leased Lines 71
&&&&&&& Leased Line Cabling 72
&&&&&&& Building a WAN Link in a Lab 73
&&& Data Link Details of Leased Lines 74
&&&&&&& HDLC Basics 74
&&&&&&& How Routers Use a WAN Data Link 75
Ethernet as a WAN Technology 77
&&& Ethernet WANs that Create a Layer 2 Service 78
&&& How Routers Route IP Packets Using Ethernet Emulation 79
Accessing the Internet 80
&&& The Internet as a Large WAN 80
&&& Internet Access (WAN) Links 81
&&& Digital Subscriber Line 82
&&& Cable Internet 84
Exam Preparation Tasks 86
Chapter 4 Fundamentals of IPv4 Addressing and Routing 89
&Do I Know This Already?& Quiz 89
Foundation Topics 92
Overview of Network Layer Functions 92
&&& Network Layer Routing (Forwarding) Logic 92
&&&&&&& Host Forwarding Logic: Send the Packet to the Default Router 93
&&&&&&& R1 and R2&s Logic: Routing Data Across the Network 94
&&&&&&& R3&s Logic: Delivering Data to the End Destination 94
&&& How Network Layer Routing Uses LANs and WANs 94
&&& IP Addressing and How Addressing Helps IP Routing 95
&&& Routing Protocols 97
IPv4 Addressing 97
&&& Rules for IP Addresses 98
&&& Rules for Grouping IP Addresses 98
&&&&&&& Class A, B, and C IP Networks 99
&& &&&&&The Actual Class A, B, and C IP Networks 101
&&& IP Subnetting 103
IPv4 Routing 105
IPv4 Host Routing 105
&&& Router Forwarding Decisions and the IP Routing Table 106
&&&&&&& A Summary of Router Forwarding Logic 106
&&&&&&& A Detailed Routing Example 107
IPv4 Routing Protocols 109
Other Network Layer Features 111
&&& Using Names and the Domain Name System 111
&&&&&&& The Address Resolution Protocol 112
&&& ICMP Echo and the ping Command 113
Exam Preparation Tasks 115
Chapter 5 Fundamentals of TCP/IP Transport and Applications 117
&Do I Know This Already?& Quiz 117
Foundation Topics 120
TCP/IP Layer 4 Protocols: TCP and UDP 120
&&& Transmission Control Protocol 121
&&&&&&& Multiplexing Using TCP Port Numbers 122
&&&&&&& Popular TCP/IP Applications 125
& &&&&&&Connection Establishment and Termination 126
&&& User Datagram Protocol 127
TCP/IP Applications 128
&&& QoS Needs and the Impact of TCP/IP Applications 128
&&&&&&& Defining Interactive and Batch Applications 129
&&&&&&& Real-Time Voice and Video Applications 129
&&& The World Wide Web, HTTP, and SSL 130
&&&&&&& Uniform Resource Locators 131
&&&&&&& Finding the Web Server Using DNS 131
&&&&&&& Transferring Files with HTTP 133
Exam Preparation Tasks 135
Part I Review 136
Part II: Ethernet LANs and Switches 140
Chapter 6 Building Ethernet LANs with Switches 143
&Do I Know This Already?& Quiz 143
Foundation Topics 146
LAN Switching Concepts 146
&&& Historical Progression: Hubs, Bridges, and Switches 146
&&& Switching Logic 148
&&&&&&& The Forward-Versus-Filter Decision 149
&&&&&&& How Switches Learn MAC Addresses 150
&&&&&&& Flooding Frames 151
&&&&&&& Avoiding Loops Using Spanning Tree Protocol 152
&&&&&&& Internal Processing on Cisco Switches 153
&&& LAN Switching Summary 154
Design Choices in Ethernet LANs 155
&&& Collision Domains, Broadcast Domains, and VLANs 155
&&&&&&& Collision Domains 155
&&&&&&& Broadcast Domains 156
&&&&&&& The Impact of Collision and Broadcast Domains on LAN Design 157
&&&&&&& Virtual LANs (VLAN) 158
&&& Choosing Ethernet Technology for a Campus LAN 159
&&&&&&& Campus Design Terminology 160
&&&&&&& Ethernet LAN Media and Cable Lengths 161
&&& Autonegotiation 162
&&&&&&& Autonegotiation Results When Only One Node Uses Autonegotiation 164
&&&&&&& Autonegotiation and LAN Hubs 165
Exam Preparation Tasks 166
Chapter 7 Installing and Operating Cisco LAN Switches 169
&Do I Know This Already?& Quiz 169
Foundation Topics 172
Accessing the Cisco Catalyst 2960 Switch CLI 172
&&& Cisco Catalyst Switches and the 2960 Switch 172
&&& Switch Status from LEDs 173
&&& Accessing the Cisco IOS CLI 176
&&&&&&& Cabling the Console Connection 176
&&&&&&& Configuring the Terminal Emulator for the Console 177
&&&&&&& Accessing the CLI with Telnet and SSH 179
&&&&&&& Password Security for CLI Access 179
&&& User and Enable (Privileged) Modes 180
&&& CLI Help Features 182
&&& The debugand showCommands 184
Configuring Cisco IOS Software 185
&&& Configuration Submodes and Contexts 185
&&& Storing Switch Configuration Files 187
&&& Copying and Erasing Configuration Files 190
&&& Initial Configuration (Setup Mode) 191
&&& IOS Version and Other Reload Facts 192
Exam Preparation Tasks 195
Review All the Key Topics 195
Chapter 8 Configuring Ethernet Switching 199
&Do I Know This Already?& Quiz 199
Foundation Topics 202
Configuration of Features in Common with Routers 202
&&& Securing the Switch CLI 202
&&&&&&& Securing Access with Simple Passwords 203
&&&&&&& Securing Access with Local Usernames and Passwords 206
&&&&&&& Securing Access with External Authentication Servers 207
&&&&&&& Configuring Secure Shell (SSH) 207
&&& Encrypting and Hiding Passwords 210
&&& Encrypting Passwords with the service password Command 210
&&&&&&& Hiding the Enable Password 212
&&&&&&& Hiding the Passwords for Local Usernames 214
&&& Console and vty Settings 214
&&&&&&& Banners 214
&&&&&&& History Buffer Commands 216
&&&&&&& The logging synchronous and exec-timeout Commands 216
LAN Switch Configuration and Operation 217
&&& Enabling IP for Remote Access 217
&&&&&&& Configuring IPv4 on a Switch 219
&&&&&&& Verifying IPv4 on a Switch 220
&&& Configuring Switch Interfaces 221
&&& Port Security 223
&&&&&&& Configuring Port Security 224
&&&&&&& Verifying Port Security 226
&&&&&&& Port Security Actions 227
&&& Securing Unused Switch Interfaces 228
Exam Preparation Tasks 229
Chapter 9 Implementing Ethernet Virtual LANs 235
&Do I Know This Already?& Quiz 235
Foundation Topics 238
Virtual LAN Concepts 238
&&& Creating Multiswitch VLANs Using Trunking 239
&&&&&&& VLAN Tagging Concepts 240
&&&&&&& The 802.1Q and ISL VLAN Trunking Protocols 241
&&& Forwarding Data Between VLANs 242
&&&&&&& Routing Packets Between VLANs with a Router 243
&&&&&&& Routing Packets with a Layer 3 Switch 245
VLAN and VLAN Trunking Configuration and Verification 246
&&& Creating VLANs and Assigning Access VLANs to an Interface 246
&&&&&&& VLAN Configuration Example 1: Full VLAN Configuration 247
&&&&&&& VLAN Configuration Example 2: Shorter VLAN Configuration 250
&&& VLAN Trunking Protocol (VTP) 251
&&& VLAN Trunking Configuration 252
&&&&&&& Controlling Which VLANs Can Be Supported on a Trunk 257
Exam Preparation Tasks 260
Chapter 10 Troubleshooting Ethernet LANs 265
&Do I Know This Already?& Quiz 265
Foundation Topics 269
&&& Perspectives on Network Verification and Troubleshooting 269
&&& Preparing to Use an Organized Troubleshooting Process 269
&&& Troubleshooting as Covered in This Book 272
Analyzing LAN Topology Using Cisco Discovery Protocol 272
&&&&&&& Examining Information Learned by CDP 273
&&&&&&& Examining the Status of the CDP Protocols 276
Analyzing Switch Interface Status 277
&&& Interface Status Codes and Reasons for Nonworking States 277
&&& Interface Speed and Duplex Issues 279
&&& Common Layer 1 Problems on Working Interfaces 282
Predicting Where Switches Will Forward Frames 284
&&& Predicting the Contents of the MAC Address Table 284
&&& Analyzing the Forwarding Path 286
&&& Port Security and Filtering 287
Analyzing VLANs and VLAN Trunks 288
&&& Ensuring That the Right Access Interfaces Are in the Right VLANs 288
&&& Access VLANs Not Being Defined 289
&&& Access VLANs Being Disabled 290
&&& Check the Allowed VLAN List on Both Ends of a Trunk 291
&&& Mismatched Trunking Operational States 292
Exam Preparation Tasks 294
Part II Review 298
Part III: IP Version 4 Addressing and Subnetting 302
Chapter 11 Perspectives on IPv4 Subnetting 305
&Do I Know This Already?& Quiz 305
Foundation Topics 308
Introduction to Subnetting 308
&&& Subnetting Defined Through a Simple Example 308
&&& Operational View Versus Design View of Subnetting 309
Analyze Subnetting and Addressing Needs 310
&&& Rules About Which Hosts Are in Which Subnet 310
&&& Determining the Number of Subnets 311
&&& Determining the Number of Hosts per Subnet 313
&&& One Size Subnet Fits All&Or Not 314
&&&&&&& Defining the Size of a Subnet 314
&&&&&&& One Size Subnet Fits All 315
&&&&&&& Multiple Subnet Sizes (Variable-Length Subnet Masks) 316
&&&&&&& This Book: One Size Subnet Fits All (Mostly) 316
Make Design Choices 317
&&& Choose a Classful Network 317
&&&&&&& Public IP Networks 317
&&&&&&& Growth Exhausts the Public IP Address Space 318
&&&&&&& Private IP Networks 319
&&&&&&& Choosing an IP Network During the Design Phase 320
&&& Choose the Mask 320
&&&&&&& Classful IP Networks Before Subnetting 321
&&&&&&& Borrowing Host Bits to Create Subnet Bits 321
&&&&&&& Choosing Enough Subnet and Host Bits 322
&&&&&&& Example Design: 172.16.0.0, 200 Subnets, 200 Hosts 323
&&&&&&& Masks and Mask Formats 324
&&& Build a List of All Subnets 325
Plan the Implementation 326
& &&Assigning Subnets to Different Locations 327
&&& Choose Static and Dynamic Ranges per Subnet 328
Exam Preparation Tasks 329
Chapter 12 Analyzing Classful IPv4 Networks 331
&Do I Know This Already?& Quiz 331
Foundation Topics 334
Classful Network Concepts 334
&&& IPv4 Network Classes and Related Facts 334
&&&&&&& Actual Class A, B, and C Networks 335
&&&&&&& Address Formats 336
&&&&&&& Default Masks 337
&&& Number of Hosts per Network 337
&&& Deriving the Network ID and Related Numbers 338
&&&&&&& Unusual Network IDs and Network Broadcast Addresses 340
Practice with Classful Networks 341
&&& Practice Deriving Key Facts Based on an IP Address 341
&&& Practice Remembering the Details of Address Classes 342
&&& Additional Practice 343
Exam Preparation Tasks 344
Answers to Earlier Practice Problems 345
Chapter 13 Analyzing Subnet Masks 349
&Do I Know This Already?& Quiz 349
Foundation Topics 352
Subnet Mask Conversion 352
&&& Three Mask Formats 352
&&& Converting Between Binary and Prefix Masks 353
&&& Converting Between Binary and DDN Masks 354
&&& Converting Between Prefix and DDN Masks 356
&&& Practice Converting Subnet Masks 357
Identifying Subnet Design Choices Using Masks 358
&&& Masks Divide the Subnet&s Addresses into Two Parts 359
&&& Masks and Class Divide Addresses into Three Parts 360
&&& Classless and Classful Addressing 361
&&& Calculations Based on the IPv4 Address Format 361
&&& Practice Analyzing Subnet Masks 363
Exam Preparation Tasks 365
Answers to Earlier Practice Problems 366
Chapter 14 Analyzing Existing Subnets 369
&Do I Know This Already?& Quiz 369
Foundation Topics 372
Defining a Subnet 372
&&& An Example with Network 172.16.0.0 and Four Subnets 372
&&& Subnet ID Concepts 374
&&& Subnet Broadcast Address 375
&&& Range of Usable Addresses 375
Analyzing Existing Subnets: Binary 376
&&& Finding the Subnet ID: Binary 376
&&& Finding the Subnet Broadcast Address: Binary 378
&&& Binary Practice Problems 379
&&& Shortcut for the Binary Process 380
&&& Brief Note About Boolean Math 382
&&& Finding the Range of Addresses 382
Analyzing Existing Subnets: Decimal 382
&&& Analysis with Easy Masks 383
&&& Predictability in the Interesting Octet 384
&&& Finding the Subnet ID: Difficult Masks 385
&&&&&&& Resident Subnet Example 1 386
&&&&&&& Resident Subnet Example 2 387
&&&&&&& Resident Subnet Practice Problems 387
&&& Finding the Subnet Broadcast Address: Difficult Masks 388
&&&&&&& Subnet Broadcast Example 1 388
&&&&&&& Subnet Broadcast Example 2 389
&&&&&&& Subnet Broadcast Address Practice Problems 390
Practice Analyzing Existing Subnets 390
&&& A Choice: Memorize or Calculate 390
&&& Additional Practice 391
Exam Preparation Tasks 392
Answers to Earlier Practice Problems 393
Part III Review 396
Part IV: Implementing IP Version 4 400
Chapter 15 Operating Cisco Routers 403
&Do I Know This Already?& Quiz 403
Foundation Topics 406
Installing Cisco Routers 406
&&& Installing Enterprise Routers 406
&&&&&&& Cisco Integrated Services Routers 408
&&&&&&& Physical Installation 409
&&& Installing Internet Access Routers 409
&&&&&&& A SOHO Installation with a Separate Switch, Router, and Cable Modem 409
&&&&&&& A SOHO Installation with an Integrated Switch, Router, and DSL Modem 411
Enabling IPv4 Support on Cisco Routers 411
&&& Comparisons Between the Switch CLI and Router CLI 412
&&& Router Interfaces 413
&&&&&&& Interface Status Codes 414
&&&&&&& Router Interface IP Addresses 415
&&&&&&& Bandwidth and Clock Rate on Serial Interfaces 417
&&& Router Auxiliary (Aux) Port 419
&&& Operational Status with the show version Command 419
Exam Preparation Tasks 421
Chapter 16 Configuring IPv4 Addresses and Routes 425
&Do I Know This Already?& Quiz 425
Foundation Topics 428
IP Routing 428
&&& IPv4 Routing Process Reference 428
&&& An Example of IP Routing 431
&&&&&&& Host Forwards the IP Packet to the Default Router (Gateway) 432
&&&&&&& Routing Step 1: Decide Whether to Process the Incoming Frame 432
&&&&&&& Routing Step 2: Deencapsulation of the IP Packet 433
&&&&&&& Routing Step 3: Choosing Where to Forward the Packet 433
&&&& &&&Routing Step 4: Encapsulating the Packet in a New Frame 434
&&&&&&& Routing Step 5: Transmitting the Frame 435
&&& Internal Processing on Cisco Routers 436
&&&&&&& Potential Routing Performance Issues 436
&&&&&&& Cisco Router Fast Switching and CEF 436
Configuring Connected Routes 437
&&& Connected Routes and the ip address Command 438
&&& Routing Between Subnets on VLANs 439
&&&&&&& Configuring Routing to VLANs using 802.1Q on Routers 440
&&&&&&& Configuring Routing to VLANs Using a Layer 3 Switch 444
&&& Secondary IP Addressing 446
&&& Supporting Connected Routes to Subnet Zero 448
Configuring Static Routes 449
&&& Static Route Configuration 449
&&& Static Default Routes 451
Exam Preparation Tasks 454
Chapter 17 Learning IPv4 Routes with OSPFv2 459
&Do I Know This Already?& Quiz 459
Foundation Topics 462
Comparing Dynamic Routing Protocol Features 462
&&& Routing Protocol Functions 462
&&& Interior and Exterior Routing Protocols 464
&&& Comparing IGPs 465
&&&&&&& IGP Routing Protocol Algorithms 465
&&&& &&&Metrics 466
&&&&&&& Other IGP Comparisons 467
&&& Administrative Distance 468
Understanding the OSPF Link-State Routing Protocol 469
&&& Building the LSDB and Creating IP Routes 470
&&&&&&& Topology Information and LSAs 470
&&&&&&& Applying Dijkstra SPF Math to Find the Best Routes 471
&&& Using OSPF Neighbor Relationships 472
&&&&&&& The Basics of OSPF Neighbors 472
&&&&&&& Meeting Neighbors and Learning Their Router ID 472
&&& Scaling OSPF Through Hierarchical Design 474
OSPF Configuration 476
&&& OSPF Single-Area Configuration 477
&&&&&&& Matching with the OSPF network Command 478
&&&&&&& Verifying OSPF 480
&&& Configuring the OSPF Router ID 483
&&& Miscellaneous OSPF Configuration Settings 484
&&&&&&& OSPF Passive Interfaces 484
&&&&&&& OSPF Default Routes 486
Exam Preparation Tasks 488
Chapter 18 Configuring and Verifying Host Connectivity 493
&Do I Know This Already?& Quiz 493
Foundation Topics 496
Configuring Routers to Support DHCP 496
&&& DHCP Protocol Messages and Addresses 496
&&& Supporting DHCP for Remote Subnets with DHCP Relay 498
&&& Information Stored at the DHCP Server 500
&&& DHCP Server Configuration and Verification on Routers 501
&&&&&&& IOS DHCP Server Configuration 501
&&&&&&& IOS DHCP Server Verification 503
&&&&&&& Detecting Conflicts with Offered Versus Used Addresses 504
Verifying Host IPv4 Settings 505
&&& IP Address and Mask Configuration 505
&&& Name Resolution with DNS 507
&&& Default Routers 508
Testing Connectivity with ping, traceroute, and telnet 511
&&& The ping Command 511
&&&&&&& Testing IP Routes with ping on a Router 512
&&&&&&& Controlling the Source IP Address with Extended ping 513
&&& The traceroute Command 515
&&&&&&& How the traceroute Command Works 516
&&&&&&& traceroute and Similar Commands 518
&&& Telnet and Suspend 519
Exam Preparation Tasks 523
Part IV Review 526
Part V: Advanced IPv4 Addressing Concepts 530
Chapter 19 Subnet Design 533
&Do I Know This Already?& Quiz 533
Foundation Topics 536
Choosing the Mask(s) to Meet Requirements 536
&&& Review: Choosing the Minimum Number of Subnet and Host Bits 536
&&& No Masks Meet Requirements 537
&&& One Mask Meets Requirements 538
&&& Multiple Masks Meet Requirements 539
&&&&&&& Finding All the Masks: Concepts 539
&&&&&&& Finding All the Masks: Math 541
&&&&&&& Choosing the Best Mask 541
&&& The Formal Process 542
&&& Practice Choosing Subnet Masks 542
&&&&&&& Practice Problems for Choosing a Subnet Mask 543
&&&&&&& Additional Practice for Choosing the Subnet Mask 543
Finding All Subnet IDs 543
&&& First Subnet ID: The Zero Subnet 544
&&& Finding the Pattern Using the Magic Number 544
&&& A Formal Process with Less Than 8 Subnet Bits 545
&&& &&&&Example 1: Network 172.16.0.0, Mask 255.255.240.0 547
&&& &&&&Example 2: Network 192.168.1.0, Mask 255.255.255.224 548
&&& Finding All Subnets with Exactly 8 Subnet Bits 550
&&& Finding All Subnets with More Than 8 Subnet Bits 550
&&& &&&&Process with 9&16 Subnet Bits 550
&&& &&&&Process with 17 or More Subnet Bits 552
&&& Practice Finding All Subnet IDs 553
&&& &&&&Practice Problems for Finding All Subnet IDs 554
&&& &&&&Additional Practice for Finding All Subnet IDs 554
Exam Preparation Tasks 555
Answers to Earlier Practice Problems 556
Chapter 20 Variable-Length Subnet Masks 561
&Do I Know This Already?& Quiz 561
Foundation Topics 563
VLSM Concepts and Configuration 563
&&& Classless and Classful Routing Protocols 564
&&& VLSM Configuration and Verification 564
Finding VLSM Overlaps 566
&&& An Example of Finding a VLSM Overlap 566
&&& Practice Finding VLSM Overlaps 568
Adding a New Subnet to an Existing VLSM Design 569
&&& An Example of Adding a New VLSM Subnet 569
&&& Practice Adding New VLSM Subnets 571
Exam Preparation Tasks 572
Answers to Earlier Practice Problems 573
Chapter 21 Route Summarization 577
&Do I Know This Already?& Quiz 577
Foundation Topics 579
Manual Route Summarization Concepts 579
&&& Route Summarization Basics 579
&&& Route Summarization and the IPv4 Subnetting Plan 580
&&& Verifying Manually Summarized Routes 581
Choosing the Best Summary Routes 582
&&& The Process to Find the Best Summary Route 583
&&& Sample &Best& Summary on Router R3 584
&&& Sample &Best& Summary on Router R2 585
&&& Practice Choosing the Best Summary Routes 586
Exam Preparation Tasks 587
Answers to Earlier Practice Problems 588
Part V Review 592
Part VI: IPv4 Services 596
Chapter 22 Basic IPv4 Access Control Lists 599
&Do I Know This Already?& Quiz 599
Foundation Topics 602
IPv4 Access Control List Basics 602
&&& ACL Location and Direction 602
&&& Matching Packets 603
&&& Taking Action When a Match Occurs 604
&&& Types of IP ACLs 604
Standard Numbered IPv4 ACLs 605
&&& List Logic with IP ACLs 605
&&& Matching Logic and Command Syntax 607
&&& &&&&Matching the Exact IP Address 607
&&& &&&&Matching a Subset of the Address with Wildcards 607
&&& &&&&Binary Wildcard Masks 609
&&& &&&&Finding the Right Wildcard Mask to Match a Subnet 610
&&& &&&&Matching Any/All Addresses 610
&&& Implementing Standard IP ACLs 610
&&& &&&&Standard Numbered ACL Example 1 611
&&& &&&&Standard Numbered ACL Example 2 613
&&& Troubleshooting and Verification Tips 614
Practice Applying Standard IP ACLs 616
&&& Practice Building access-list Commands 616
&&& Reverse Engineering from ACL to Address Range 617
Exam Preparation Tasks 619
Answers to Earlier Practice Problems 621
Chapter 23 Advanced IPv4 ACLs and Device Security 623
&Do I Know This Already?& Quiz 623
Foundation Topics 626
Extended Numbered IP Access Control Lists 626
&&& Matching the Protocol, Source IP, and Destination IP 626
&&& Matching TCP and UDP Port Numbers 628
&&& Extended IP ACL Configuration 631
&&& &&&&Extended IP Access Lists: Example 1 631
&&& &&&&Extended IP Access Lists: Example 2 633
&&& Practice Building access-list Commands 634
Named ACLs and ACL Editing 635
&&& Named IP Access Lists 635
&&& Editing ACLs Using Sequence Numbers 637
&&& Numbered ACL Configuration Versus Named ACL Configuration 640
Router and Switch Security 641
&&& Review: Password Protections for the CLI 641
&&& Disable Services 642
&&& Controlling Telnet and SSH Access with ACLs 643
&&& ACL Implementation Considerations 644
&&& Network Time Protocol 645
Exam Preparation Tasks 648
Answers to Earlier Practice Problems 651
Chapter 24 Network Address Translation 653
&Do I Know This Already?& Quiz 653
Foundation Topics 656
Perspectives on IPv4 Address Scalability 656
&&& CIDR 656
&&& &&&&Route Aggregation for Shorter Routing Tables 657
&&& &&&&IPv4 Address Conservation 658
&&& Private Addressing 658
Network Address Translation Concepts 659
&&& Static NAT 659
&&& Dynamic NAT 662
&&& Overloading NAT with Port Address Translation (PAT) 663
&&& NAT Overload (PAT) on Consumer Routers 665
NAT Configuration and Troubleshooting 666
&&& Static NAT Configuration 666
&&& Dynamic NAT Configuration 668
&&& Dynamic NAT Verification 670
&&& NAT Overload (PAT) Configuration 673
&&& NAT Troubleshooting 676
Exam Preparation Tasks 678
Part VI Review 680
Part VII: IP Version 6 684
Chapter 25 Fundamentals of IP Version 6 687
&Do I Know This Already?& Quiz 687
Foundation Topics 690
Introduction to IPv6 690
&&& The Historical Reasons for IPv6 690
&&& The IPv6 Protocols 692
&&& IPv6 Routing 693
&&& IPv6 Routing Protocols 695
IPv6 Addressing Formats and Conventions 696
&&& Representing Full (Unabbreviated) IPv6 Addresses 697
&&& Abbreviating and Expanding IPv6 Addresses 697
&&& &&&&Abbreviating IPv6 Addresses 698
&&& &&&&Expanding Abbreviated IPv6 Addresses 699
&&& Representing the Prefix Length of an Address 700
&&& Calculating the IPv6 Prefix (Subnet ID) 700
&&& &&&&Finding the IPv6 Prefix 700
&&& &&&&Working with More Difficult IPv6 Prefix Lengths 702
Exam Preparation Tasks 704
Answers to Earlier Practice Problems 705
Chapter 26 IPv6 Addressing and Subnetting 709
&Do I Know This Already?& Quiz 709
Foundation Topics 712
Global Unicast Addressing Concepts 712
&&& A Brief Review of Public and Private IPv4 Addresses 712
&&& &&&&Review of Public IPv4 Addressing Concepts 712
&&& &&&&Review of Private IPv4 Addressing Concepts 714
&&& &&&&Public and Private IPv6 Addresses 715
&&& The IPv6 Global Routing Prefix 716
&&& Address Ranges for Global Unicast Addresses 718
&&& IPv6 Subnetting Using Global Unicast Addresses 718
&&& &&&&Deciding Where IPv6 Subnets Are Needed 719
&&& &&&&The Mechanics of Subnetting IPv6 Global Unicast Addresses 719
&&& &&&&Listing the IPv6 Subnet Identifier 722
&&& &&&&List All IPv6 Subnets 722
&&& &&&&Assign Subnets to the Internetwork Topology 723
&&& Assigning Addresses to Hosts in a Subnet 723
Unique Local Unicast Addresses 724
&&& Subnetting with Unique Local IPv6 Addresses 725
&&& The Need for Globally Unique Local Addresses 726
Exam Preparation Tasks 728
Chapter 27 Implementing IPv6 Addressing on Routers 731
&Do I Know This Already?& Quiz 731
Foundation Topics 734
Implementing Unicast IPv6 Addresses on Routers 734
&&& Static Unicast Address Configuration 735
&&& &&&&Configuring the Full 128-Bit Address 735
&&& &&&&Enabling IPv6 Routing 736
&&& &&&&Verifying the IPv6 Address Configuration 737
&&& &&&&Generating a Unique Interface ID Using EUI-64 739
&&& Dynamic Unicast Address Configuration 742
Special Addresses Used by Routers 743
&&& Link-Local Addresses 744
&&& &&&&Link-Local Address Concepts 744
&&& &&&&Creating Link-Local Addresses on Routers 745
&&& IPv6 Multicast Addresses 746
&&& &&&&Broadcasts Versus Multicasts 746
&&& &&&&Common Local Scope Multicast Addresses 747
&&& &&&&Solicited-Node Multicast Addresses 748
&&& Miscellaneous IPv6 Addresses 749
Exam Preparation Tasks 751
Answers to Earlier Practice Problems 753
Chapter 28 Implementing IPv6 Addressing on Hosts 755
&Do I Know This Already?& Quiz 755
Foundation Topics 758
The Neighbor Discovery Protocol 758
&&& Discovering Routers with NDP RS and RA 759
&&& Discovering Addressing Info for SLAAC with NDP RS and RA 760
&&& Discovering Neighbor Link Addresses with NDP NS and NA 760
&&& Discovering Duplicate Addresses Using NDP NS and NA 762
&&& NDP Summary 763
Dynamic Configuration of Host IPv6 Settings 763
&&& Dynamic Configuration Using Stateful DHCP and NDP 763
&&& &&&&Differences Between DHCPv6 and DHCPv4 764
&&& &&&&DHCPv6 Relay Agents 765
&&& Using Stateless Address Autoconfiguration 767
&&& &&&&Building an IPv6 Address Using SLAAC 767
&&& &&&&Combining SLAAC with NDP and Stateless DHCP 768
Verification of Host IPv6 Connectivity 769
&&& Verifying Host IPv6 Connectivity from Hosts 769
&&& Verifying Host Connectivity from Nearby Routers 772
Exam Preparation Tasks 776
Chapter 29 Implementing IPv6 Routing 779
&Do I Know This Already?& Quiz 779
Foundation Topics 782
Connected and Local IPv6 Routes 782
&&& Rules for Connected and Local Routes 782
&&& Example of Connected IPv6 Routes 783
&&& Examples of Local IPv6 Routes 785
Static IPv6 Routes 785
&&& Static Routes Using the Outgoing Interface 786
&&& Static Routes Using Next-Hop IPv6 Address 787
&&& &&&&Example Static Route with a Global Unicast Next-Hop Address 788
&&& &&&&Example Static Route with a Link-Local Next-Hop Address 788
&&& Static Default Routes 790
Dynamic Routes with OSPFv3 791
&&& Comparing OSPF for IPv4 and IPv6 791
&&& &&&&OSPF Routing Protocol Versions and Protocols 791
&&& &&&&Comparing OSPFv2 and OSPFv3 793
&&& Configuring Single-Area OSPFv3 794
&&& &&&&OSPFv3 Single-Area Configuration Example 796
&&& &&&&OSPFv3 Passive Interfaces 798
&&& Verifying OSPFv3 Status and Routes 798
&&& &&&&Verifying OSPFv3 Configuration Settings 799
&&& &&&&Verifying OSPFv3 Neighbors 801
&&& &&&&Examining the OSPFv3 Database 803
&&& &&&&Examining IPv6 Routes Learned by OSPFv3 803
Exam Preparation Tasks 805
Part VII Review 808
Part VIII: Final Review 812
Chapter 30 Final Review 815
Advice About the Exam Event 815
&&& Learn the Question Types Using the Cisco Certification Exam Tutorial 815
&&& Think About Your Time Budget Versus Numbers of Questions 816
&&& A Suggested Time-Check Method 817
&&& Miscellaneous Pre-Exam Suggestions 818
&&& Exam-Day Advice 818
Exam Review 819
&&& Practice Subnetting and Other Math-Related Skills 819
&&& Take Practice Exams 821
&&& &&&&Practicing Taking the ICND1 Exam 822
&&& &&&&Practicing Taking the CCNA Exam 823
&&& &&&&Advice on How to Answer Exam Questions 824
&&& &&&&Taking Other Practice Exams 825
&&& Find Knowledge Gaps Through Question Review 826
&&& Practice Hands-On CLI Skills 829
&&& &&&&Review Mind Maps from Part Review 829
&&& &&&&Do Labs 829
&&& Other Study Tasks 830
&&& Final Thoughts 831
Part IX: Appendixes 832
Appendix A Numeric Reference Tables 835
Appendix B ICND1 Exam Upd ates 841
Glossary 843
DVD-only Appendixes
Appendix C: Answers to the &Do I Know This Already?& Quizzes
Appendix D: Practice for Chapter 12: Analyzing Classful IPv4 Networks
Appendix E: Practice for Chapter 13: Analyzing Subnet Masks
Appendix F: Practice for Chapter 14: Analyzing Existing Subnets
Appendix G: Practice for Chapter 19: Subnet Design
Appendix H: Practice for Chapter 20: Variable-Length Subnet Masks
Appendix I: Practice for Chapter 21: Route Summarization
Appendix J: Practice for Chapter 22: Basic IPv4 Access Control Lists
Appendix K: Practice for Chapter 25: Fundamentals of IP Version 6
Appendix L: Practice for Chapter 27: Implementing IPv6 Addressing on Routers
Appendix M: Memory Tables
Appendix N: Memory Tables Answer Key
Appendix O: Mind Map Solutions
Appendix P: Study Planner
4&& TOC&& 3/21/2013
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