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Welcome to the CCENT ICND1 100-101 Pearson uCertify Course, Network Simulator, and Textbook Bundle
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CENT ICND1 100-101 web-based hands-on labs
CCENT ICND1 100-101 Network Simulator, Academic Edition Pearson uCertify Labs is an online, hands-on skills enhancement tool that helps students gain the real-world configuration and troubleshooting skills they need to succeed on the Cisco CCENT exam and to land a job as a network engineer. The 250+ labs in this product cover the full range of Cisco CCENT ICND1 100-101 exam topics.
These best-selling labs help bridge the gap between conceptual knowledge and real-world application by providing competency-based, interactive, online, 24x7 training. The labs simulate real-world networking hardware that you configure and troubleshoot using the Cisco Command Line Interface (CLI). Working through the labs, you will quickly become proficient with all the common Cisco IOS version 15 router and switch commands on the CCNA Routing and Switching exam. The open command environment allows you to explore configurations beyond the lab steps.
With this product as their guide, students will experience realistic network device performance as they perform a wide range hands-on configuration and troubleshooting exercises on the following topics:
• Router and switch navigation and administration
• Ethernet LAN switches
• VLANs and trunking
• IPv4 and IPv6 addressing and subnetting
• Operating Cisco routers
• Learning IPv4 routes with OSPFv2
• Configuring and verifying host connectivity
• Subnet design
• VLSM
• Route summarization
• IPv4 Access Control Lists (ACL)
• Network Address Translation (NAT)
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.
Introduction xxxi
Getting Started 2
Part I Networking Fundamentals 8
Chapter 1 The TCP/IP and OSI Networking Models 10
Foundation Topics 11
Perspectives on Networking 11
TCP/IP Networking Model 12
History Leading to TCP/IP 13
Overview of the TCP/IP Networking Model 14
TCP/IP Application Layer 15
HTTP Overview 15
HTTP Protocol Mechanisms 16
TCP/IP Transport Layer 17
TCP Error Recovery Basics 17
Same-Layer and Adjacent-Layer Interactions 18
TCP/IP Network Layer 18
Internet Protocol and the Postal Service 18
Internet Protocol Addressing Basics 20
IP Routing Basics 21
TCP/IP Link Layer (Data Link Plus Physical) 21
TCP/IP Model and Terminology 23
Comparing the Original and Modern TCP/IP Models 23
Data Encapsulation Terminology 23
Names of TCP/IP Messages 24
OSI Networking Model 25
Comparing OSI and TCP/IP 25
Describing Protocols by Referencing the OSI Layers 26
OSI Layers and Their Functions 26
OSI Layering Concepts and Benefits 28
OSI Encapsulation Terminology 28
Review Activities 30
Chapter 2 Fundamentals of Ethernet LANs 34
Foundation Topics 35
An Overview of LANs 35
Typical SOHO LANs 35
Typical Enterprise LANs 36
The Variety of Ethernet Physical Layer Standards 37
Consistent Behavior over All Links Using the Ethernet Data Link Layer 38
Building Physical Ethernet Networks with UTP 38
Transmitting Data Using Twisted Pairs 39
Breaking Down a UTP Ethernet Link 39
UTP Cabling Pinouts for 10BASE-T and 100BASE-T 41
Straight-Through Cable Pinout 41
Crossover Cable Pinout 43
Choosing the Right Cable Pinouts 43
UTP Cabling Pinouts for 1000BASE-T 44
Sending Data in Ethernet Networks 44
Ethernet Data Link Protocols 45
Ethernet Addressing 45
Identifying Network Layer Protocols with the Ethernet Type Field 47
Error Detection with FCS 48
Sending Ethernet Frames with Switches and Hubs 48
Sending in Modern Ethernet LANs Using Full-Duplex 48
Using Half-Duplex with LAN Hubs 49
Review Activities 52
Chapter 3 Fundamentals of WANs 56
Foundation Topics 57
Leased Line WANs 57
Positioning Leased Lines with LANs and Routers 57
Physical Details of Leased Lines 58
Leased Line Cabling 59
Building a WAN Link in a Lab 60
Data Link Details of Leased Lines 60
HDLC Basics 61
How Routers Use a WAN Data Link 62
Ethernet as a WAN Technology 63
Ethernet WANs that Create a Layer 2 Service 64
How Routers Route IP Packets Using Ethernet Emulation 65
Accessing the Internet 65
The Internet as a Large WAN 66
Internet Access (WAN) Links 67
Digital Subscriber Line 68
Cable Internet 69
Review Activities 71
Chapter 4 Fundamentals of IPv4 Addressing and Routing 74
Foundation Topics 75
Overview of Network Layer Functions 75
Network Layer Routing (Forwarding) Logic 75
Host Forwarding Logic: Send the Packet to the Default Router 76
R1 and R2’s Logic: Routing Data Across the Network 77
R3’s Logic: Delivering Data to the End Destination 77
How Network Layer Routing Uses LANs and WANs 77
IP Addressing and How Addressing Helps IP Routing 78
Routing Protocols 79
IPv4 Addressing 80
Rules for IP Addresses 80
Rules for Grouping IP Addresses 81
Class A, B, and C IP Networks 82
The Actual Class A, B, and C IP Networks 83
IP Subnetting 85
IPv4 Routing 87
IPv4 Host Routing 87
Router Forwarding Decisions and the IP Routing Table 87
A Summary of Router Forwarding Logic 87
A Detailed Routing Example 88
IPv4 Routing Protocols 89
Other Network Layer Features 91
Using Names and the Domain Name System 91
The Address Resolution Protocol 92
ICMP Echo and the ping Command 93
Review Activities 95
Chapter 5 Fundamentals of TCP/IP Transport and Applications 100
Foundation Topics 101
TCP/IP Layer 4 Protocols: TCP and UDP 101
Transmission Control Protocol 102
Multiplexing Using TCP Port Numbers 102
Popular TCP/IP Applications 105
Connection Establishment and Termination 106
User Datagram Protocol 107
TCP/IP Applications 107
QoS Needs and the Impact of TCP/IP Applications 107
Defining Interactive and Batch Applications 108
Real-Time Voice and Video Applications 108
The World Wide Web, HTTP, and SSL 109
Uniform Resource Locators 110
Finding the Web Server Using DNS 110
Transferring Files with HTTP 112
Review Activities 113
Part I Review 118
Part II Ethernet LANs and Switches 122
Chapter 6 Building Ethernet LANs with Switches 124
Foundation Topics 125
LAN Switching Concepts 125
Historical Progression: Hubs, Bridges, and Switches 125
Switching Logic 127
The Forward-Versus-Filter Decision 127
How Switches Learn MAC Addresses 128
Flooding Frames 129
Avoiding Loops Using Spanning Tree Protocol 130
Internal Processing on Cisco Switches 130
LAN Switching Summary 131
Design Choices in Ethernet LANs 132
Collision Domains, Broadcast Domains, and VLANs 132
Collision Domains 133
Broadcast Domains 133
The Impact of Collision and Broadcast Domains on LAN Design 134
Virtual LANs (VLAN) 135
Choosing Ethernet Technology for a Campus LAN 136
Campus Design Terminology 136
Ethernet LAN Media and Cable Lengths 138
Autonegotiation 139
Autonegotiation Results When Only One Node Uses Autonegotiation 140
Autonegotiation and LAN Hubs 141
Review Activities 143
Chapter 7 Installing and Operating Cisco LAN Switches 148
Foundation Topics 149
Accessing the Cisco Catalyst 2960 Switch CLI 149
Cisco Catalyst Switches and the 2960 Switch 149
Switch Status from LEDs 150
Accessing the Cisco IOS CLI 152
Cabling the Console Connection 152
Configuring the Terminal Emulator for the Console 153
Accessing the CLI with Telnet and SSH 154
Password Security for CLI Access 155
User and Enable (Privileged) Modes 156
CLI Help Features 157
The debug and show Commands 158
Configuring Cisco IOS Software 159
Configuration Submodes and Contexts 160
Storing Switch Configuration Files 162
Copying and Erasing Configuration Files 164
Initial Configuration (Setup Mode) 165
IOS Version and Other Reload Facts 166
Review Activities 169
Chapter 8 Configuring Ethernet Switching 174
Foundation Topics 175
Configuration of Features in Common with Routers 175
Securing the Switch CLI 175
Securing Access with Simple Passwords 175
Securing Access with Local Usernames and Passwords 178
Securing Access with External Authentication Servers 179
Configuring Secure Shell (SSH) 180
Encrypting and Hiding Passwords 182
Encrypting Passwords with the service password Command 182
Hiding the Enable Password 184
Hiding the Passwords for Local Usernames 185
Console and vty Settings 185
Banners 185
History Buffer Commands 187
The logging synchronous and exec-timeout Commands 187
LAN Switch Configuration and Operation 188
Enabling IP for Remote Access 188
Configuring IPv4 on a Switch 190
Verifying IPv4 on a Switch 191
Configuring Switch Interfaces 192
Port Security 193
Configuring Port Security 195
Verifying Port Security 197
Port Security Actions 198
Securing Unused Switch Interfaces 198
Review Activities 199
Chapter 9 Implementing Ethernet Virtual LANs 208
Foundation Topics 209
Virtual LAN Concepts 209
Creating Multiswitch VLANs Using Trunking 210
VLAN Tagging Concepts 211
The 802.1Q and ISL VLAN Trunking Protocols 212
Forwarding Data Between VLANs 213
Routing Packets Between VLANs with a Router 213
Routing Packets with a Layer 3 Switch 215
VLAN and VLAN Trunking Configuration and Verification 216
Creating VLANs and Assigning Access VLANs to an Interface 216
VLAN Configuration Example 1: Full VLAN Configuration 217
VLAN Configuration Example 2: Shorter VLAN Configuration 219
VLAN Trunking Protocol (VTP) 220
VLAN Trunking Configuration 221
Controlling Which VLANs Can Be Supported on a Trunk 225
Review Activities 228
Chapter 10 Troubleshooting Ethernet LANs 234
Foundation Topics 236
Perspectives on Network Verification and Troubleshooting 236
Preparing to Use an Organized Troubleshooting Process 236
Troubleshooting as Covered in This Book 238
Analyzing LAN Topology Using Cisco Discovery Protocol 239
Examining Information Learned by CDP 239
Examining the Status of the CDP Protocols 242
Analyzing Switch Interface Status 242
Interface Status Codes and Reasons for Nonworking States 243
Interface Speed and Duplex Issues 244
Common Layer 1 Problems on Working Interfaces 247
Predicting Where Switches Will Forward Frames 248
Predicting the Contents of the MAC Address Table 248
Analyzing the Forwarding Path 250
Port Security and Filtering 251
Analyzing VLANs and VLAN Trunks 252
Ensuring That the Right Access Interfaces Are in the Right VLANs 252
Access VLANs Not Being Defined 253
Access VLANs Being Disabled 253
Check the Allowed VLAN List on Both Ends of a Trunk 254
Mismatched Trunking Operational States 255
Review Activities 257
Part II Review 264
Part III IP Version 4 Addressing and Subnetting 268
Chapter 11 Perspectives on IPv4 Subnetting 270
Foundation Topics 271
Introduction to Subnetting 271
Subnetting Defined Through a Simple Example 271
Operational View Versus Design View of Subnetting 272
Analyze Subnetting and Addressing Needs 273
Rules About Which Hosts Are in Which Subnet 273
Determining the Number of Subnets 274
Determining the Number of Hosts per Subnet 275
One Size Subnet Fits All–Or Not 276
Defining the Size of a Subnet 276
One Size Subnet Fits All 277
Multiple Subnet Sizes (Variable-Length Subnet Masks) 278
This Book: One Size Subnet Fits All (Mostly) 278
Make Design Choices 278
Choose a Classful Network 279
Public IP Networks 279
Growth Exhausts the Public IP Address Space 280
Private IP Networks 281
Choosing an IP Network During the Design Phase 281
Choose the Mask 282
Classful IP Networks Before Subnetting 282
Borrowing Host Bits to Create Subnet Bits 283
Choosing Enough Subnet and Host Bits 283
Example Design: 172.16.0.0, 200 Subnets, 200 Hosts 284
Masks and Mask Formats 285
Build a List of All Subnets 286
Plan the Implementation 287
Assigning Subnets to Different Locations 287
Choose Static and Dynamic Ranges per Subnet 288
Review Activities 290
Chapter 12 Analyzing Classful IPv4 Networks 294
Foundation Topics 295
Classful Network Concepts 295
IPv4 Network Classes and Related Facts 295
Actual Class A, B, and C Networks 296
Address Formats 296
Default Masks 297
Number of Hosts per Network 298
Deriving the Network ID and Related Numbers 298
Unusual Network IDs and Network Broadcast Addresses 300
Practice with Classful Networks 300
Practice Deriving Key Facts Based on an IP Address 301
Practice Remembering the Details of Address Classes 301
Additional Practice 302
Review Activities 303
Chapter 13 Analyzing Subnet Masks 308
Foundation Topics 309
Subnet Mask Conversion 309
Three Mask Formats 309
Converting Between Binary and Prefix Masks 310
Converting Between Binary and DDN Masks 310
Converting Between Prefix and DDN Masks 312
Practice Converting Subnet Masks 313
Identifying Subnet Design Choices Using Masks 314
Masks Divide the Subnet’s Addresses into Two Parts 314
Masks and Class Divide Addresses into Three Parts 315
Classless and Classful Addressing 316
Calculations Based on the IPv4 Address Format 316
Practice Analyzing Subnet Masks 318
Review Activities 320
Chapter 14 Analyzing Existing Subnets 326
Foundation Topics 327
Defining a Subnet 327
An Example with Network 172.16.0.0 and Four Subnets 327
Subnet ID Concepts 328
Subnet Broadcast Address 329
Range of Usable Addresses 330
Analyzing Existing Subnets: Binary 330
Finding the Subnet ID: Binary 330
Finding the Subnet Broadcast Address: Binary 332
Binary Practice Problems 333
Shortcut for the Binary Process 334
Brief Note About Boolean Math 335
Finding the Range of Addresses 336
Analyzing Existing Subnets: Decimal 336
Analysis with Easy Masks 336
Predictability in the Interesting Octet 337
Finding the Subnet ID: Difficult Masks 338
Resident Subnet Example 1 338
Resident Subnet Example 2 339
Resident Subnet Practice Problems 340
Finding the Subnet Broadcast Address: Difficult Masks 340
Subnet Broadcast Example 1 340
Subnet Broadcast Example 2 341
Subnet Broadcast Address Practice Problems 341
Practice Analyzing Existing Subnets 342
A Choice: Memorize or Calculate 342
Additional Practice 342
Review Activities 343
Part III Review 348
Part IV Implementing IP Version 4 352
Chapter 15 Operating Cisco Routers 354
Foundation Topics 355
Installing Cisco Routers 355
Installing Enterprise Routers 355
Cisco Integrated Services Routers 356
Physical Installation 357
Installing Internet Access Routers 357
A SOHO Installation with a Separate Switch, Router, and Cable Modem 358
A SOHO Installation with an Integrated Switch, Router, and DSL Modem 359
Enabling IPv4 Support on Cisco Routers 359
Comparisons Between the Switch CLI and Router CLI 359
Router Interfaces 360
Interface Status Codes 362
Router Interface IP Addresses 363
Bandwidth and Clock Rate on Serial Interfaces 365
Router Auxiliary (Aux) Port 366
Operational Status with the show version Command 366
Review Activities 368
Chapter 16 Configuring IPv4 Addresses and Routes 374
Foundation Topics 376
IP Routing 376
IPv4 Routing Process Reference 376
An Example of IP Routing 378
Host Forwards the IP Packet to the Default Router (Gateway) 379
Routing Step 1: Decide Whether to Process the Incoming Frame 380
Routing Step 2: Deencapsulation of the IP Packet 380
Routing Step 3: Choosing Where to Forward the Packet 381
Routing Step 4: Encapsulating the Packet in a New Frame 381
Routing Step 5: Transmitting the Frame 382
Internal Processing on Cisco Routers 382
Potential Routing Performance Issues 383
Cisco Router Fast Switching and CEF 383
Configuring Connected Routes 384
Connected Routes and the ip address Command 384
Routing Between Subnets on VLANs 386
Configuring Routing to VLANs using 802.1Q on Routers 387
Configuring Routing to VLANs Using a Layer 3 Switch 390
Secondary IP Addressing 392
Supporting Connected Routes to Subnet Zero 393
Configuring Static Routes 394
Static Route Configuration 394
Static Default Routes 396
Review Activities 399
Chapter 17 Learning IPv4 Routes with OSPFv2 404
Foundation Topics 405
Comparing Dynamic Routing Protocol Features 405
Routing Protocol Functions 405
Interior and Exterior Routing Protocols 406
Comparing IGPs 407
IGP Routing Protocol Algorithms 407
Metrics 408
Other IGP Comparisons 409
Administrative Distance 410
Understanding the OSPF Link-State Routing Protocol 411
Building the LSDB and Creating IP Routes 411
Topology Information and LSAs 412
Applying Dijkstra SPF Math to Find the Best Routes 413
Using OSPF Neighbor Relationships 413
The Basics of OSPF Neighbors 413
Meeting Neighbors and Learning Their Router ID 414
Scaling OSPF Through Hierarchical Design 415
OSPF Configuration 417
OSPF Single-Area Configuration 417
Matching with the OSPF network Command 419
Verifying OSPF 420
Configuring the OSPF Router ID 423
Miscellaneous OSPF Configuration Settings 424
OSPF Passive Interfaces 424
OSPF Default Routes 426
Review Activities 428
Chapter 18 Configuring and Verifying Host Connectivity 434
Foundation Topics 435
Configuring Routers to Support DHCP 435
DHCP Protocol Messages and Addresses 435
Supporting DHCP for Remote Subnets with DHCP Relay 437
Information Stored at the DHCP Server 438
DHCP Server Configuration and Verification on Routers 439
IOS DHCP Server Configuration 439
IOS DHCP Server Verification 441
Detecting Conflicts with Offered Versus Used Addresses 442
Verifying Host IPv4 Settings 442
IP Address and Mask Configuration 443
Name Resolution with DNS 444
Default Routers 445
Testing Connectivity with ping, traceroute, and telnet 447
The ping Command 447
Testing IP Routes with ping on a Router 448
Controlling the Source IP Address with Extended ping 449
The traceroute Command 451
How the traceroute Command Works 452
traceroute and Similar Commands 454
Telnet and Suspend 455
Review Activities 458
Part IV Review 464
Part V Advanced IPv4 Addressing Concepts 468
Chapter 19 Subnet Design 470
Foundation Topics 471
Choosing the Mask(s) to Meet Requirements 471
Review: Choosing the Minimum Number of Subnet and Host Bits 471
No Masks Meet Requirements 472
One Mask Meets Requirements 473
Multiple Masks Meet Requirements 473
Finding All the Masks: Concepts 473
Finding All the Masks: Math 475
Choosing the Best Mask 475
The Formal Process 475
Practice Choosing Subnet Masks 476
Practice Problems for Choosing a Subnet Mask 476
Additional Practice for Choosing the Subnet Mask 477
Finding All Subnet IDs 477
First Subnet ID: The Zero Subnet 477
Finding the Pattern Using the Magic Number 478
A Formal Process with Less Than 8 Subnet Bits 479
Example 1: Network 172.16.0.0, Mask 255.255.240.0 480
Example 2: Network 192.168.1.0, Mask 255.255.255.224 481
Finding All Subnets with Exactly 8 Subnet Bits 482
Finding All Subnets with More Than 8 Subnet Bits 483
Process with 9—16 Subnet Bits 483
Process with 17 or More Subnet Bits 484
Practice Finding All Subnet IDs 485
Practice Problems for Finding All Subnet IDs 486
Additional Practice for Finding All Subnet IDs 486
Review Activities 487
Chapter 20 Variable-Length Subnet Masks 494
Foundation Topics 495
VLSM Concepts and Configuration 495
Classless and Classful Routing Protocols 495
VLSM Configuration and Verification 496
Finding VLSM Overlaps 497
An Example of Finding a VLSM Overlap 498
Practice Finding VLSM Overlaps 499
Adding a New Subnet to an Existing VLSM Design 500
An Example of Adding a New VLSM Subnet 500
Practice Adding New VLSM Subnets 502
Review Activities 503
Chapter 21 Route Summarization 508
Foundation Topics 509
Manual Route Summarization Concepts 509
Route Summarization Basics 509
Route Summarization and the IPv4 Subnetting Plan 510
Verifying Manually Summarized Routes 511
Choosing the Best Summary Routes 512
The Process to Find the Best Summary Route 512
Sample “Best” Summary on Router R3 513
Sample “Best” Summary on Router R2 514
Practice Choosing the Best Summary Routes 515
Review Activities 516
Part V Review 522
Part VI IPv4 Services 526
Chapter 22 Basic IPv4 Access Control Lists 528
Foundation Topics 529
IPv4 Access Control List Basics 529
ACL Location and Direction 529
Matching Packets 530
Taking Action When a Match Occurs 530
Types of IP ACLs 531
Standard Numbered IPv4 ACLs 531
List Logic with IP ACLs 532
Matching Logic and Command Syntax 533
Matching the Exact IP Address 533
Matching a Subset of the Address with Wildcards 533
Binary Wildcard Masks 535
Finding the Right Wildcard Mask to Match a Subnet 535
Matching Any/All Addresses 536
Implementing Standard IP ACLs 536
Standard Numbered ACL Example 1 537
Standard Numbered ACL Example 2 538
Troubleshooting and Verification Tips 540
Practice Applying Standard IP ACLs 541
Practice Building access-list Commands 541
Reverse Engineering from ACL to Address Range 542
Review Activities 544
Chapter 23 Advanced IPv4 ACLs and Device Security 550
Foundation Topics 552
Extended Numbered IP Access Control Lists 552
Matching the Protocol, Source IP, and Destination IP 552
Matching TCP and UDP Port Numbers 553
Extended IP ACL Configuration 556
Extended IP Access Lists: Example 1 557
Extended IP Access Lists: Example 2 558
Practice Building access-list Commands 559
Named ACLs and ACL Editing 560
Named IP Access Lists 560
Editing ACLs Using Sequence Numbers 562
Numbered ACL Configuration Versus Named ACL Configuration 563
Router and Switch Security 564
Review: Password Protections for the CLI 565
Disable Services 565
Controlling Telnet and SSH Access with ACLs 567
ACL Implementation Considerations 567
Network Time Protocol 568
Review Activities 571
Chapter 24 Network Address Translation 578
Foundation Topics 579
Perspectives on IPv4 Address Scalability 579
CIDR 579
Route Aggregation for Shorter Routing Tables 580
IPv4 Address Conservation 580
Private Addressing 581
Network Address Translation Concepts 581
Static NAT 582
Dynamic NAT 584
Overloading NAT with Port Address Translation (PAT) 585
NAT Overload (PAT) on Consumer Routers 587
NAT Configuration and Troubleshooting 588
Static NAT Configuration 588
Dynamic NAT Configuration 590
Dynamic NAT Verification 592
NAT Overload (PAT) Configuration 594
NAT Troubleshooting 596
Review Activities 598
Part VI Review 604
Part VII: IP Version 6 608
Chapter 25 Fundamentals of IP Version 6 610
Foundation Topics 611
Introduction to IPv6 611
The Historical Reasons for IPv6 611
The IPv6 Protocols 612
IPv6 Routing 614
IPv6 Routing Protocols 615
IPv6 Addressing Formats and Conventions 616
Representing Full (Unabbreviated) IPv6 Addresses 617
Abbreviating and Expanding IPv6 Addresses 617
Abbreviating IPv6 Addresses 617
Expanding Abbreviated IPv6 Addresses 618
Representing the Prefix Length of an Address 619
Calculating the IPv6 Prefix (Subnet ID) 619
Finding the IPv6 Prefix 620
Working with More Difficult IPv6 Prefix Lengths 621
Review Activities 623
Chapter 26 IPv6 Addressing and Subnetting 628
Foundation Topics 629
Global Unicast Addressing Concepts 629
A Brief Review of Public and Private IPv4 Addresses 629
Review of Public IPv4 Addressing Concepts 629
Review of Private IPv4 Addressing Concepts 631
Public and Private IPv6 Addresses 631
The IPv6 Global Routing Prefix 632
Address Ranges for Global Unicast Addresses 633
IPv6 Subnetting Using Global Unicast Addresses 634
Deciding Where IPv6 Subnets Are Needed 634
The Mechanics of Subnetting IPv6 Global Unicast Addresses 635
Listing the IPv6 Subnet Identifier 637
List All IPv6 Subnets 637
Assign Subnets to the Internetwork Topology 638
Assigning Addresses to Hosts in a Subnet 638
Unique Local Unicast Addresses 639
Subnetting with Unique Local IPv6 Addresses 640
The Need for Globally Unique Local Addresses 640
Review Activities 642
Chapter 27 Implementing IPv6 Addressing on Routers 646
Foundation Topics 647
Implementing Unicast IPv6 Addresses on Routers 647
Static Unicast Address Configuration 648
Configuring the Full 128-Bit Address 648
Enabling IPv6 Routing 649
Verifying the IPv6 Address Configuration 649
Generating a Unique Interface ID Using EUI-64 651
Dynamic Unicast Address Configuration 654
Special Addresses Used by Routers 654
Link-Local Addresses 655
Link-Local Address Concepts 655
Creating Link-Local Addresses on Routers 656
IPv6 Multicast Addresses 657
Broadcasts Versus Multicasts 657
Common Local Scope Multicast Addresses 658
Solicited-Node Multicast Addresses 658
Miscellaneous IPv6 Addresses 660
Review Activities 661
Chapter 28 Implementing IPv6 Addressing on Hosts 666
Foundation Topics 668
The Neighbor Discovery Protocol 668
Discovering Routers with NDP RS and RA 669
Discovering Addressing Info for SLAAC with NDP RS and RA 669
Discovering Neighbor Link Addresses with NDP NS and NA 670
Discovering Duplicate Addresses Using NDP NS and NA 671
NDP Summary 672
Dynamic Configuration of Host IPv6 Settings 673
Dynamic Configuration Using Stateful DHCP and NDP 673
Differences Between DHCPv6 and DHCPv4 674
DHCPv6 Relay Agents 674
Using Stateless Address Autoconfiguration 676
Building an IPv6 Address Using SLAAC 676
Combining SLAAC with NDP and Stateless DHCP 677
Verification of Host IPv6 Connectivity 678
Verifying Host IPv6 Connectivity from Hosts 678
Verifying Host Connectivity from Nearby Routers 680
Review Activities 683
Chapter 29 Implementing IPv6 Routing 688
Foundation Topics 689
Connected and Local IPv6 Routes 689
Rules for Connected and Local Routes 689
Example of Connected IPv6 Routes 690
Examples of Local IPv6 Routes 691
Static IPv6 Routes 692
Static Routes Using the Outgoing Interface 692
Static Routes Using Next-Hop IPv6 Address 693
Example Static Route with a Global Unicast Next-Hop Address 694
Example Static Route with a Link-Local Next-Hop Address 695
Static Default Routes 696
Dynamic Routes with OSPFv3 697
Comparing OSPF for IPv4 and IPv6 697
OSPF Routing Protocol Versions and Protocols 697
Comparing OSPFv2 and OSPFv3 698
Configuring Single-Area OSPFv3 700
OSPFv3 Single-Area Configuration Example 701
OSPFv3 Passive Interfaces 703
Verifying OSPFv3 Status and Routes 703
Verifying OSPFv3 Configuration Settings 704
Verifying OSPFv3 Neighbors 706
Examining the OSPFv3 Database 707
Examining IPv6 Routes Learned by OSPFv3 707
Review Activities 709
Part VII Review 714
Part VIII: Final Review 718
Chapter 30 Final Review 720
Advice About the Exam Event 720
Learn the Question Types Using the Cisco Certification Exam Tutorial 720
Think About Your Time Budget Versus Numbers of Questions 721
A Suggested Time-Check Method 722
Miscellaneous Pre-Exam Suggestions 722
Exam-Day Advice 722
Exam Review 723
Practice Subnetting and Other Math-Related Skills 723
Take Practice Exams 725
Practicing Taking the ICND1 Exam 726
Practicing Taking the CCNA Exam 726
Advice on How to Answer Exam Questions 728
Find Knowledge Gaps Through Question Review 729
Practice Hands-On CLI Skills 731
Review Mind Maps from Part Review 731
Do Labs 731
Other Study Tasks 732
Final Thoughts 732
Part IX Appendixes 734
Appendix A Numeric Reference Tables 736
Appendix B ICND1 Exam Updates 744
Glossary 746
DVD-only Appendixes
Appendix C: Answers to Review Questions
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
9781587144851 TOC 5/23/2013