A complete guide to the CCNA Wireless exam by leading networking authority Todd Lammle The CCNA Wireless certification is the most respected entry-level certification in this rapidly growing field. Todd Lammle is the undisputed authority on networking, and this book focuses exclusively on the skills covered in this Cisco certification exam.
The CCNA Wireless Study Guide joins the popular Sybex study guide family and helps network administrators advance their careers with a highly desirable certification.
- The CCNA Wireless certification is the most respected entry-level wireless certification for system administrators looking to advance their careers
- Written by Todd Lammle, the leading networking guru and author of numerous bestselling certification guides
- Provides in-depth coverage of every exam objective and the technology developed by Cisco for wireless networking
- Covers WLAN fundamentals, installing a basic Cisco wireless LAN and wireless clients, and implementing WLAN security
- Explains the operation of basic WCS, basic WLAN maintenance, and troubleshooting
- Companion CD includes the Sybex Test Engine, flashcards, and entire book in PDF format
- Includes hands-on labs, end-of-chapter review questions, Exam Essentials overview, Real World Scenarios, and a tear-out objective map showing where each exam objective is covered
The CCNA Wireless Study Guide prepares any network administrator for exam success.
Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
Table of Contents:
Introduction xxi
Assessment Test xxx
Chapter 1 Wireless Networks and Topologies 1
Wireless Networks 2
Wireless Personal Area Network (WPAN) 3
Wireless LAN (WLAN) 4
Wireless Metro Area Network (WMAN) 4
Wireless Wide Area Network (WWAN) 5
Basic Wireless Devices 5
Wireless Access Points 5
Wireless Network Interface Card (NIC) 7
Wireless Antennas 8
Wireless Topologies 9
Independent Basic Service Set (Ad Hoc) 9
Basic Service Set (BSS) 10
Infrastructure Basic Service Set 11
Service Set ID 12
Extended Service Set 12
Workgroup Bridge 14
Repeaters 15
Bridging 16
Mesh Networks 17
Switching 19
VLAN Memberships 21
Static VLANs 21
Dynamic VLANs 21
Types of Switch Ports 22
Frame Tagging 24
VLAN Trunking Protocols 24
Configuring VLANs 25
Assigning Switch Ports to VLANs 27
Configuring Trunk Ports 28
Summary 32
Exam Essentials 32
Written Lab 1 33
Review Questions 34
Answers to Review Questions 38
Answers to Written Lab 1 40
Chapter 2 WLAN RF Fundamentals 41
Introducing Radio Frequency (RF) 43
RF Basics 43
Radio Frequency Behaviors 46
RF Operational Requirements 51
RF Math 54
RF Values 54
Rule of 3s and 10s 57
WLAN Antennas 60
Antenna Principles 60
Polarization 61
Diversity 62
Antenna Types 63
Semidirectional 67
Highly Directional 68
Antenna Accessories 69
Summary 73
Exam Essentials 74
Written Lab 75
Review Questions 76
Answers to Review Questions 80
Answers to Written Lab 82
Chapter 3 Spread Spectrum Technologies and Modulations 83
Transmission Methods: An Overview 84
Spread Spectrum 85
Frequency Hopping Spread Spectrum 86
Direct Sequence Spread Spectrum 88
Orthogonal Frequency Division Multiplexing 91
Channel Management and Overlap 96
Channel Overlap Techniques 98
Summary 99
Exam Essentials 100
Written Lab 101
Review Questions 102
Answers to Review Questions 104
Answers to Written Lab 105
Chapter 4 Wireless Regulation Bodies, Standards, and Certifications 107
Wireless Regulations 108
IEEE 802.11 Transmission 109
Unlicensed Bands 110
IEEE Wireless 112
2.4GHz (802.11b) 113
2.4GHz (802.11g) 116
5GHz (802.11a) 119
5GHz (802.11h) 121
2.4GHz/5GHz (802.11n) 123
Wireless Frames 126
CSMA/CA 126
Three Frames Types 128
A Closer Look at Management Frames 133
A Closer Look at Control Frames 141
Nonstandard Wireless Technologies 144
Bluetooth 144
Cordless Phones 145
ZigBee 145
Non-802.11 Interfering Devices 146
WiMAX 146
Summary 148
Exam Essentials 148
Written Lab 149
Review Questions 150
Answers to Review Questions 154
Answers to Written Lab 156
Chapter 5 Introduction to Wireless Security 157
Wireless Threats 158
Rogue APs 159
Ad Hoc Networks 159
Denial of Service 160
Passive Attacks 162
Open Access 163
Security Measures 164
Service Set Identifiers (SSIDs) and
Media Access Control (MAC) Address Authentication 165
Authentication 165
Encryption 176
Centralized Key Management 183
Implementation Standards 184
Summary 188
Exam Essentials 188
Written Lab 189
Review Questions 190
Answers to Review Questions 194
Answers to Written Lab 196
Chapter 6 Wireless Clients and Cisco Extension (CCX) 197
Wireless Clients 198
Windows XP 198
Windows Vista 203
Windows 7 208
Apple 208
Linux 210
Cisco’s Supplicants 212
Cisco ADU 212
Cisco Secure Services Client 217
Installation 217
Cisco-Compatible Extensions 220
CCX Versions 1 Through 5 220
Summary 221
Exam Essentials 221
Written Lab 223
Hands-on Labs 224
Hands-on Lab 6.1: Installing the ADU 224
Hands-on Lab 6.2: Creating a Profile 224
Review Questions 226
Answers to Review Questions 230
Answers to Written Lab 232
Chapter 7 Introduction to the Cisco Unified Wireless Network (CUWN) 233
WLAN Deployment Models 234
Stand-alone Model 235
Lightweight Model 236
Cisco Unified Network Devices 239
Access Points 239
Wireless LAN Controllers 242
Wireless Control Systems 244
Lightweight AP Operation and Maintenance 245
AP Discovery and Association 245
Redundancy 250
AP Modes 252
Roaming 255
Mobility Groups 255
Layer 2 and Layer 3 Roaming 257
Radio Resource Management 259
Summary 260
Exam Essentials 261
Written Lab 262
Review Questions 263
Answers to Review Questions 267
Answers to Written Lab 268
Chapter 8 Introduction to the Cisco Mobility Express Wireless Architecture 269
Cisco Mobility Express 270
Small Business Communication System 270
Express Wireless Architecture 272
Cisco Mobility Express vs. CUWN Features Comparison 274
Using the Cisco Configuration Assistant 275
The Discovery Process with the CCA 279
Configuring the Express 526WLC Without the CCA 280
Summary 281
Exam Essentials 281
Written Lab 283
Hands-On Labs 283
Hands-on Lab 8.1: Installing the CCA and Connecting to the 526WLC 283
Hands-on Lab 8.2: Connecting Directly to the 526WLC Through the Management Port 284
Review Questions 285
Answers to Review Questions 289
Answers to Written Lab 290
Chapter 9 Installing the Cisco Unified Wireless Network (CUWN) 291
Understanding Controller Interfaces 292
Ports 292
Types of Interfaces 293
WLC Management 297
Initial Setup Options 298
Managing Stand-alone APs 309
Connecting To and Managing a Stand-alone AP 310
Express Setup and Security 313
Migrating Stand-alone APs 315
Reverting Back to Cisco IOS 317
Summary 318
Exam Essentials 318
Written Lab 320
Hands-On Labs 320
Lab 9.1: Performing the Initial Setup via the Service Port 320
Lab 9.2: Creating a WLAN 321
Lab 9.3: Performing the Initial Setup via the Serial Port 322
Lab 9.4: Adding an Administrative User on the WLC 322
Lab 9.5: Executing the Express Setup on a Stand-alone AP 323
Review Questions 324
Answers to Review Questions 328
Answers to Written Lab 330
Chapter 10 Configuring Wireless Security on the CUWN 331
Security and the Connection Process 332
Configuring Security on the WLC 333
Settings per WLAN 333
Global Settings 339
Configuring the Clients 340
Windows Zero Configuration 341
Linux Network Manager 345
Mac AirPort Extreme 346
Cisco ADU 348
Summary 349
Exam Essentials 349
Written Lab 351
Hands-On Labs 352
Lab 10.1: Configuring the WLC for WPA PSK 352
Lab 10.2: Configuring the WLC for 802.1x 353
Review Questions 354
Answers to Review Questions 358
Answers to Written Lab 360
Chapter 11 Wireless Control System (WCS) 361
Basics of WCS 362
WCS Versions 363
WCS Licensing 364
Cisco WCS Navigator 366
Installing and Upgrading WCS 366
Configuring Ports 366
Performing a New WCS Install 367
Upgrading WCS 374
Verifying the Upgrade/Installation 375
Basic WCS Setup 375
Configuring Passwords 376
Administration Tasks 376
Background Tasks 378
AAA 379
Configuring WLCs and APs 384
Managing the Controllers 390
Configuring Maps 396
Setting Up Campus Maps 396
Setting Up Building Maps 399
Setting Up Floor Plan Maps 400
Setting Up APs on Maps 401
Monitoring the CUWN with WCS 404
Personalizing the Home Page 405
Using the Monitor Tab 407
Locating Devices 412
Summary 412
Exam Essentials 413
Written Lab 414
Hands-On Labs 414
Lab 11.1: Installing the WCS 414
Lab 11.2: Creating an Administrative Account 416
Review Questions 417
Answers to Review Questions 421
Answers to Written Lab 422
Chapter 12 WLAN Maintenance and Troubleshooting 423
Basic Troubleshooting Methods 424
WLCs 425
APs 426
Clients 426
Troubleshooting Tools 432
Troubleshooting a Client Association with a WLAN Analyzer 432
GUI Tools on the WLC 432
GUI Tools on the WCS 434
WLC CLI Troubleshooting 436
debug Commands 436
show Commands 440
Logging 441
RF Deployment Considerations 449
Interference Sources 449
Conducting the All-Important Site Survey 454
WLC and WCS Configuration and OS Files 458
Code Upgrades 458
WLC Configuration Backups 462
Collecting Information on the APs 465
WLC Access Methods 466
GUI 467
CLI 467
Summary 469
Exam Essentials 469
Written Lab 470
Hands-On Labs 470
Lab 12.1: Upgrading the Code Version on the WCS 471
Lab 12.2: Performing a Manual Backup of the WCS Database 471
Lab 12.3: Performing a Controller Code Update 472
Review Questions 473
Answers to Review Questions 476
Answers to Written Lab 478
Appendix About the Companion CD 479
Glossary 483
Index 493
