The latest offering from Cisco Expert Todd Lammle for the New CCENT Certification
Written by industry expert and Cisco networking guru, Todd Lammle, CCENT Study Guide improves on the popular Sybex Study Guide approach by providing 100 percent coverage of the ICND1 (#100-101) exam objectives. The book contains detailed information and examples on crucial Cisco networking topics, and provides practical examples and insights drawn from Todd's almost 30 years of real-world experience. You'll also have access to dozens of hands-on labs to get the necessary experience needed to pass the exam.
* Covers operating IP data networks
* Deciphers understanding switching and routing technologies
* Discusses troubleshooting and network security
* Explains working with IPv4 and IPv6 addressing
In addition, access is provided to a robust set of learning tools, including the Sybex test engine with hundreds of sample questions, a pre-assessment test, ICND1 practice exams, and electronic flashcards. BONUS: Also includes a network simulator for readers to perform all of the hands-on labs included in the book and author videos.
Auflage
Sprache
Verlagsort
Zielgruppe
Für die Erwachsenenbildung
Maße
Höhe: 23.3 cm
Breite: 18.9 cm
Dicke: 4 cm
Gewicht
ISBN-13
978-1-118-74968-5 (9781118749685)
Schweitzer Klassifikation
Todd Lammle is the Authority on Cisco Certification and Internetworking and is Cisco certified in all Cisco certification categories. He is a world-renowned author, speaker, trainer, and consultant. Todd has three decades of experience working with LANs, WANs, and large enterprise licensed and unlicensed wireless networks, including the implementation of large Cisco Data Centers world-wide. His books draw on his practical experience working on the largest networks in the world at companies such as Xerox, Hughes Aircraft, Texaco, AAA, Cisco and Toshiba. He has published over 60 books, including the very popular CCNA: Cisco Certified Network Associate Study Guide, CCNA Wireless Study Guide, and CCNA Data Center Study Guide, all from Sybex. He runs an international consulting and training company based in Colorado, Texas, and San Francisco. You can reach Todd through his forum and blog at www.lammle.com.
Introduction xxi
CCENT Exam Objectives xxxii
Assessment Test xxxviii
Chapter 1 Internetworking 1
Internetworking Basics 2
Internetworking Models 10
The Layered Approach 11
Advantages of Reference Models 12
The OSI Reference Model 12
The Application Layer 14
The Presentation Layer 15
The Session Layer 15
The Transport Layer 16
The Network Layer 21
The Data Link Layer 23
The Physical Layer 26
Summary 27
Exam Essentials 28
Written Labs 29
Written Lab 1.1: OSI Questions 29
Written Lab 1.2: Defining the OSI Layers and Devices 30
Written Lab 1.3: Identifying Collision and Broadcast Domains 31
Review Questions 32
Chapter 2 Ethernet Networking and Data Encapsulation 39
Ethernet Networks in Review 40
Collision Domain 41
Broadcast Domain 42
CSMA/CD 43
Half- and Full-Duplex Ethernet 45
Ethernet at the Data Link Layer 47
Ethernet at the Physical Layer 53
Ethernet Cabling 57
Straight-Through Cable 58
Crossover Cable 58
Rolled Cable 60
Fiber Optic 62
Data Encapsulation 64
The Cisco Three-Layer Hierarchical Model 68
The Core Layer 68
The Distribution Layer 70
The Access Layer 70
Summary 71
Exam Essentials 71
Written Labs 72
Written Lab 2.1: Binary/Decimal/Hexadecimal Conversion 73
Written Lab 2.2: CSMA/CD Operations 77
Written Lab 2.3: Cabling 77
Written Lab 2.4: Encapsulation 78
Review Questions 79
Chapter 3 Introduction to TCP/IP 85
Introducing TCP/IP 86
A Brief History of TCP/IP 87
TCP/IP and the DoD Model 87
The Process/Application Layer Protocols 89
The Host-to-Host Layer Protocols 99
The Internet Layer Protocols 108
IP Addressing 116
IP Terminology 116
The Hierarchical IP Addressing Scheme 117
Private IP Addresses (RFC 1918) 122
IPv4 Address Types 124
Layer 2 Broadcasts 124
Layer 3 Broadcasts 124
Unicast Address 125
Multicast Address 126
Summary 127
Exam Essentials 128
Written Labs 130
Written Lab 3.1: TCP/IP 130
Written Lab 3.2: Mapping Applications to the DoD Model 130
Review Questions 132
Chapter 4 Easy Subnetting 137
Subnetting Basics 138
How to Create Subnets 140
Subnet Masks 140
Classless Inter-Domain Routing (CIDR) 142
IP Subnet-Zero 144
Subnetting Class C Addresses 144
Subnetting Class B Addresses 156
Subnetting Class A Addresses 165
Summary 168
Exam Essentials 168
Written Labs 169
Written Lab 4.1: Written Subnet Practice #1 169
Written Lab 4.2: Written Subnet Practice #2 170
Written Lab 4.3: Written Subnet Practice #3 171
Review Questions 172
Chapter 5 VLSMs, Summarization, and Troubleshooting TCP/IP 179
Variable Length Subnet Masks (VLSMs) 180
VLSM Design 182
Implementing VLSM Networks 182
Summarization 191
Troubleshooting IP Addressing 194
Determining IP Address Problems 196
Summary 201
Exam Essentials 202
Written Lab 5 203
Review Questions 204
Chapter 6 Cisco's Internetworking Operating System (IOS) 211
The IOS User Interface 213
Cisco IOS 214
Connecting to a Cisco IOS Device 214
Bringing Up a Switch 216
Command-Line Interface (CLI) 217
Entering the CLI 217
Overview of Router Modes 217
CLI Prompts 218
Editing and Help Features 221
Administrative Configurations 226
Hostnames 226
Banners 227
Setting Passwords 229
Encrypting Your Passwords 235
Descriptions 237
Router and Switch Interfaces 239
Bringing Up an Interface 242
Viewing, Saving, and Erasing Configurations 248
Deleting the Configuration and Reloading the Device 250
Verifying Your Configuration 251
Summary 262
Exam Essentials 263
Written Lab 6 266
Hands-on Labs 266
Hands-on Lab 6.1: Erasing an Existing Configuration 267
Hands-on Lab 6.2: Exploring User, Privileged, and Configuration Modes 267
Hands-on Lab 6.3: Using the Help and Editing Features 268
Hands-on Lab 6.4: Saving a Configuration 269
Hands-on Lab 6.5: Setting Passwords 270
Hands-on Lab 6.6: Setting the Hostname, Descriptions, IP Address, and Clock Rate 272
Review Questions 275
Chapter 7 Managing a Cisco Internetwork 281
The Internal Components of a Cisco Router and Switch 282
The Router and Switch Boot Sequence 283
Backing Up and Restoring the Cisco Configuration 284
Backing Up the Cisco Configuration 284
Restoring the Cisco Configuration 286
Erasing the Configuration 287
Configuring DHCP 288
DHCP Relay 289
Verifying DHCP on Cisco IOS 290
Network Time Protocol (NTP) 291
Using Cisco Discovery Protocol (CDP) 293
Getting CDP Timers and Holdtime Information 293
Gathering Neighbor Information 294
Documenting a Network Topology Using CDP 298
Using Telnet 301
Telnetting into Multiple Devices Simultaneously 303
Checking Telnet Connections 304
Checking Telnet Users 304
Closing Telnet Sessions 304
Resolving Hostnames 305
Building a Host Table 305
Using DNS to Resolve Names 307
Checking Network Connectivity and Troubleshooting 309
Using the ping Command 310
Using the traceroute Command 310
Debugging 312
Using the show processes Command 314
Summary 315
Exam Essentials 315
Written Lab 7 317
Written Lab 7.1: IOS Management 317
Written Lab 7.2: Router Memory 317
Hands-on Labs 318
Hands-on Lab 7.1: Backing Up the Router Configuration 318
Hands-on Lab 7.2: Using the Cisco Discovery
Protocol (CDP) 319
Hands-on Lab 7.3: Using Telnet 320
Hands-on Lab 7.4: Resolving Hostnames 321
Review Questions 323
Chapter 8 IP Routing 329
Routing Basics 331
The IP Routing Process 333
The Cisco Router Internal Process 339
Testing Your IP Routing Understanding 340
Configuring IP Routing 344
Configuring IP Routing in Our Network 354
Static Routing 355
Default Routing 360
Dynamic Routing 363
Routing Protocol Basics 363
Routing Information Protocol (RIP) 365
Configuring RIP Routing 365
Holding Down RIP Propagations 369
Summary 371
Exam Essentials 372
Written Lab 8 374
Hands-on Labs 374
Hands-on Lab 8.1: Creating Static Routes 375
Hands-on Lab 8.2: Configuring RIP Routing 376
Review Questions 378
Chapter 9 Open Shortest Path First (OSPF) 383
Open Shortest Path First (OSPF) Basics 384
OSPF Terminology 387
OSPF Operation 389
Configuring OSPF 391
Enabling OSPF 391
Configuring OSPF Areas 392
Configuring Our Network with OSPF 395
OSPF and Loopback Interfaces 400
Configuring Loopback Interfaces 401
Verifying OSPF Configuration 403
The show ip ospf Command 404
The show ip ospf database Command 405
The show ip ospf interface Command 406
The show ip ospf neighbor Command 407
The show ip protocols Command 409
Summary 409
Exam Essentials 410
Written Lab 9 411
Hands-on Labs 411
Hands-on Lab 9.1: Enabling the OSPF Process 412
Hands-on Lab 9.2: Configuring OSPF Interfaces 413
Hands-on Lab 9.3: Verifying OSPF Operation 414
Review Questions 415
Chapter 10 Layer 2 Switching 423
Switching Services 424
Three Switch Functions at Layer 2 425
Port Security 429
Configuring Catalyst Switches 434
Catalyst Switch Configuration 434
Verifying Cisco Catalyst Switches 442
Summary 445
Exam Essentials 445
Written Lab 10 446
Hands-on Labs 446
Lab 10.1: Configuring Layer 2 Switches 447
Lab 10.2: Verifying Layer 2 Switches 448
Lab 10.3: Configuring Port Security 448
Review Questions 450
Chapter 11 VLANs and Inter-VLAN Routing 457
VLAN Basics 458
Broadcast Control 461
Security 462
Flexibility and Scalability 462
Identifying VLANs 463
Frame Tagging 465
VLAN Identification Methods 466
Routing between VLANs 467
Configuring VLANs 470
Assigning Switch Ports to VLANs 473
Configuring Trunk Ports 474
Configuring Inter-VLAN Routing 478
Summary 485
Exam Essentials 486
Written Lab 11 487
Hands-on Labs 487
Hands-on Lab 11.1: Configuring and Verifying VLANs 488
Hands-on Lab 11.2: Configuring and Verifying Trunk Links 489
Hands-on Lab 11.3: Configuring Router on a Stick Routing 490
Hands-on Lab 11.4: Configuring IVR with a Layer 3 Switch 490
Review Questions 492
Chapter 12 Security 499
Perimeter, Firewall, and Internal Routers 500
Introduction to Access Lists 501
Mitigating Security Issues with ACLs 504
Standard Access Lists 505
Wildcard Masking 506
Standard Access List Example 508
Controlling VTY (Telnet/SSH) Access 512
Extended Access Lists 513
Extended Access List Example 1 517
Extended Access List Example 2 519
Extended Access List Example 3 520
Named ACLs 521
Remarks 523
Monitoring Access Lists 524
Summary 526
Exam Essentials 527
Written Lab 12 528
Hands-on Labs 528
Hands-on Lab 12.1: Standard IP Access Lists 529
Hands-on Lab 12.2: Extended IP Access Lists 530
Review Questions 533
Chapter 13 Network Address Translation (NAT) 539
When Do We Use NAT? 540
Types of Network Address Translation 542
NAT Names 542
How NAT Works 543
Static NAT Configuration 545
Dynamic NAT Configuration 546
PAT (Overloading) Configuration 546
Simple Verification of NAT 547
Testing and Troubleshooting NAT 548
Summary 553
Exam Essentials 554
Written Lab 13 555
Hands-on Labs 555
Lab 13.1: Preparing for NAT 556
Lab 13.2: Configuring Dynamic NAT 558
Lab 13.3: Configuring PAT 559
Review Questions 562
Chapter 14 Internet Protocol Version 6 (IPv6) 567
Why Do We Need IPv6? 569
The Benefits and Uses of IPv6 569
IPv6 Addressing and Expressions 571
Shortened Expression 572
Address Types 573
Special Addresses 574
How IPv6 Works in an Internetwork 575
Manual Address Assignment 576
Stateless Autoconfiguration (EUI-64) 576
DHCPv6 (Stateful) 579
IPv6 Header 580
ICMPv6 581
IPv6 Routing Protocols 584
Static Routing with IPv6 584
OSPFv3 585
Configuring IPv6 on Our Internetwork 586
Configuring Routing on Our Internetwork 589
Verifying OSPFv3 592
Summary 597
Exam Essentials 597
Written Labs 599
Written Lab 14.1 599
Written Lab 14.2 599
Hands-on Labs 600
Hands-on Lab 14.1: Manual and Stateful Autoconfiguration 600
Hands-on Lab 14.2: Static and Default Routing 602
Hands-on Lab 14.3: OSPFv3 603
Review Questions 605
Appendix A Answers to Written Labs 611
Chapter 1: Internetworking 612
Written Lab 1.1: OSI Questions 612
Written Lab 1.2: Defining the OSI Layers and Devices 613
Written Lab 1.3: Identifying Collision and Broadcast Domains 614
Chapter 2: Ethernet Networking and Data Encapsulation 615
Written Lab 2.1: Binary/Decimal/Hexadecimal Conversion 615
Written Lab 2.2: CSMA/CD Operations 617
Written Lab 2.3: Cabling 617
Written Lab 2.4: Encapsulation 618
Chapter 3: Introduction to TCP/IP 618
Written Lab 3.1: TCP/IP 618
Written Lab 3.2: Mapping Applications to the DoD Model 618
Chapter 4: Easy Subnetting 619
Written Lab 4.1: Written Subnet Practice #1 619
Written Lab 4.2: Written Subnet Practice #2 620
Written Lab 4.3: Written Subnet Practice #3 621
Chapter 5: VLSMs, Summarization and Troubleshooting TCP/IP 621
Chapter 6: Cisco's Internetworking Operating System (IOS) 622
Written Lab 6 622
Chapter 7: Managing a Cisco Internetwork 622
Written Lab 7.1: IOS Management 622
Written Lab 7.2: Router Memory 623
Chapter 8: IP Routing 623
Chapter 9: Open Shortest Path First (OSPF) 624
Chapter 10: Layer 2 Switching 624
Chapter 11: VLANs and InterVLAN Routing 624
Chapter 12: Security 625
Chapter 13: Network Address Translation 625
Chapter 14: Internet Protocol Version 6 (IPv6) 626
Written Lab 14.1 626
Written Lab 14.2 626
Appendix B Answers to Review Questions 627
Chapter 1: Internetworking 628
Chapter 2: Ethernet Networking and Data Encapsulation 630
Chapter 3: Introduction to TCP/IP 631
Chapter 4: Easy Subnetting 633
Chapter 5: VLSMs, Summarization and Troubleshooting TCP/IP 635
Chapter 6: Cisco's Internetworking Operating System (IOS) 637
Chapter 7: Managing a Cisco Internetwork 639
Chapter 8: IP Routing 641
Chapter 9: Open Shortest Path First (OSPF) 642
Chapter 10: Layer 2 Switching 644
Chapter 11: VLANs and InterVLAN Routing 647
Chapter 12: Security 648
Chapter 13: Network Address Translation 651
Chapter 14: Internet Protocol Version 6 (IPv6) 652
Appendix C Disabling and Configuring Network Services 655
Blocking SNMP Packets 656
Disabling Echo 656
Turning off BootP and Auto-Config 657
Disabling the HTTP Interface 658
Disabling IP Source Routing 658
Disabling Proxy ARP 658
Disabling Redirect Messages 658
Disabling the Generation of ICMP Unreachable Messages 659
Disabling Multicast Route Caching 659
Disabling the Maintenance Operation Protocol (MOP) 659
Turning Off the X.25 PAD Service 660
Enabling the Nagle TCP Congestion Algorithm 660
Logging Every Event 660
Disabling Cisco Discovery Protocol 661
Disabling the Default Forwarded UDP Protocols 661
Cisco's Auto Secure 662
Appendix D About the Additional Study Tools 667
Additional Study Tools 668
Test Engine 668
Electronic Flashcards 668
Videos 668
Network Simulator 669
PDF of Glossary of Terms 669
System Requirements 669
Using the Study Tools 669
Troubleshooting 670
Customer Care 670
Index 671
