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Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide, Academic Edition,9781587144851
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Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide, Academic Edition

by
Edition:
1st
ISBN13:

9781587144851

ISBN10:
1587144859
Format:
Hardcover
Pub. Date:
6/13/2013
Publisher(s):
Cisco Press

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Summary

CCENT/CCNA ICND1 100-101 Official Cert Guide, Academic Edition  is a comprehensive textbook and study package for a beginner-level networking course. This book has been completely revised to align to Cisco's new CCENT 100-101 ICND1 exam. Material is presented in a concise manner, focusing on increasing student's retention and recall of exam topics. The book is printed in four color, allowing students to benefit from carefully crafted figures that utilize color to convey concepts. Students will organize their study through the use of the consistent features in these chapters, including:

 

• Foundation Topics – These sections make up the majority of the page count, explaining concepts, configurations, with emphasis on the theory and concepts, and with linking the theory to the meaning of the configuration commands.
• Key Topics – Inside the Foundation Topics sections, every figure, table, or list that should absolutely be understood and remembered for the exam is noted with the words “Key Topic” in the margin. This tool allows the reader to quickly review the most important details in each chapter.
• Chapter-ending Summaries – These bulleted lists provide a quick and concise review of the key topics covered in each chapter.
• Chapter-ending Review Questions – Each chapter provides a set of multiple choice questions that help student’s test their knowledge of the chapter concepts, including answers and full explanations.
• Chapter-ending Exercises – Each chapter concludes with a series of exercises designed to help students increase their retention of the chapter content including key term reviews, key topic tables, command review exercises, and memory table exercises.
• Part Reviews – This new edition includes a new part review feature that helps students consolidate their knowledge of concepts presented across multiple chapters. A new mind mapping exercise helps students build strong mental maps of concepts. A new exam bank of part review questions helps students test themselves with scenario-based questions that span multiple topics.

In addition to these powerful chapter learning, review, and practice features, this book also contains several other features that make it a truly effective and comprehensive study package, including:

• A Getting Started chapter at the beginning of the book offer terrific advice for how to use the book features and build an effective study plan.
• The DVD contains over 90 minutes of video mentoring from the author on challenging topics such as CLI navigation, router configuration, switch basics, VLANs, and subnetting.
• The book comes complete with the CCENT/CCNA ICND1 Network Simulator Lite software, providing students with the opportunity to practice their hands-on command line interface skills with Cisco routers and switches. The 13 labs included for free with this product cover a range of IP addressing configuration and troubleshooting exercises.
• The Pearson IT Certification Practice Test software that comes with the book includes 4 full ICND1 exams and 4 full CCNA exams, providing tons of opportunities to assess and practice. Including the book review questions and part review questions, the exam bank includes more than 600 unique practice questions.
• This book also comes with a free version of the Premium Edition eBook, allowing students to access the digital copy in PDF, EPUB, or Kindle format on their computer or mobile device.
• A Final Preparation Chapter helps students review for final exams and prepare to take the official Cisco CCNA exams, if they want to achieve that certification.
• A Study Plan Template is included on the DVD to help students organize their study time.

 

 

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.” http://bit.ly/OdomCCENTCCNA

Author Biography

Wendell Odom, CCIE No. 1624, has been in the networking industry since 1981. He has worked as a network engineer, consultant, systems engineer, instructor, and course developer; he currently works writing and creating certification tools. He is author of all the previous books in the Cisco Press CCNA Official Certification Guide series, as well as the CCNP ROUTE 642-902 Official Certification Guide, the QoS 642-642 Exam Certification Guide, coauthor of the CCIE Routing and Switch Official Certification Guide, and several other titles. He is also a consultant for the CCNA 640-802 Network Simulator from Pearson and for a forthcoming replacement version of that product. He maintains study tools, links to his blogs, and other resources at www.certskills.com.

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



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