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Wireshark for Wireless LANs

Video Description

More Than 8 Hours of Expert Video Instruction

The Wireshark for Wireless LANs LiveLessons video training course offers more than eight hours of expert instruction on troubleshooting Wi-Fi networks using Wireshark.

Presented by Jerome Henry and James Garringer, Wireshark for Wireless LANs LiveLessons illuminates all the techniques you need to quickly identify and resolve real wireless network problems with Wireshark. Its nine well-organized lessons and 53 concise sublessons teach through real examples, easy-to-follow animations, and detailed audio explanations.

Experienced network engineers James Garringer and Jerome Henry thoroughly explain the crucial 802.11 concepts you need to master in order to troubleshoot Wi-Fi networks with Wireshark. They guide you through capturing and analyzing data at both physical and higher layers, and offer expert help with specific problems, such as dropped connections and slow performance.

If you’re responsible for a wireless network, Wireshark for Wireless LANs LiveLessons will help you improve its reliability and performance‚Äîand your own efficiency and effectiveness.

Coverage includes

  • Setting up your software and hardware for efficient wireless capture
  • Understanding channels, contention detection, thresholds, and 802.11 b/g/n/ac physical layers
  • Recognizing key clues in Layer 2 headers and frame check sequences
  • Decrypting and displaying wireless captures, so it makes sense
  • Customizing filters specifically for Wi-Fi exchanges
  • Using advanced tools to view traffic from a higher vantage point
  • Pinpointing problems by exploring management, control, data frames, and retransmissions
  • Troubleshooting slow, failed, and intermittent connections
  • Gaining deeper insights with statistical analysis and pattern recognition

Aout the Instructors

James Garringer (Atlanta, GA), CWNE, is an experienced consulting engineer who specializes in Wi-Fi and networking for education, healthcare, and enterprise customers throughout the United States Mr. Garringer has a special interest in Wireshark and protocol analysis, and has spent considerable time performing frame and packet analysis in customer and lab environments. A Certified Wireless Network Expert (CWNE No. 179), he also serves on the CWNP Board of Advisors, and on the WLAN Advisory Board. He has more than ten years of experience as a speaker and teacher. James is also the author of Wireshark Fundamentals Livelessons.

Jerome Henry (Pittsboro, NC), CWNE and CCIE Wireless, is Principal Engineer at Cisco focusing on Wi-Fi products. He has 15+ years of experience teaching technical Cisco courses and products in 15 countries and four languages. Through 15,000+ hours in the classroom, he has taught audiences ranging from college students to Cisco engineers. He holds Certified Wireless Networking Expert (CWNE No. 45), CCIE Wireless (No. 24750), has authored several books on Cisco wireless technologies, and has developed multiple Cisco courses on wireless topics, including Wireshark Fundamentals LiveLessons; CCNA Wireless 200-355 Complete Video Course, IoT Fundamentals, and more.

Skill Level

  • Intermediate

Learn How To

  • Capture the channels you need, even from remote sources
  • Understand the crucial role of Layer 1 data in wireless troubleshooting
  • Uncover key Layer 2 details and recognize what they mean
  • Efficiently capture wireless traffic and decrypt encrypted traffic
  • Discover the best ways to filter wireless captures
  • Manage large wireless captures from the command line
  • Identify issues by assessing key management, control, and data frames
  • Quickly troubleshoot slow or dropped connections
  • Export wireless capture data for industrial-strength pattern analysis

Who Should Take This Course

For all network engineers and other network professionals at all levels who need to troubleshoot wireless networks.

Course Requirements

Requires a basic understanding of networking and Wi-Fi.

About Pearson Video Training

Pearson’s expert-led video tutorials teach you the technology skills you need to succeed. These professional and personal technology videos feature world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT certification, programming, web and mobile development, networking, security, and more. Learn more about Pearson Video training at http://www.informit.com/video

Table of Contents

  1. Introduction
    1. Wireshark vs. Others 00:04:55
  2. Lesson 1: Setting up the Capture Environment
    1. Learning objectives 00:01:23
    2. 1.1 Wireshark Capabilities on Various Platforms 00:08:45
    3. 1.2 What We Will Use in This Course 00:03:25
    4. 1.3 Capturing from Local and Remote Adapters 00:11:17
    5. 1.4 Using Single and Multiple Channels 00:15:42
    6. 1.5 Capturing Encrypted Traffic 00:06:23
    7. Summary 00:01:37
  3. Lesson 2: RF Basics--Layer 1
    1. Learning objectives 00:01:29
    2. 2.1 Channels and Separation in the ISM and UNII Bands 00:02:34
    3. 2.2 CCI and Medium Contention 00:01:54
    4. 2.3 The Deferral Process 00:05:38
    5. 2.4 RF Math Basics 00:04:33
    6. 2.5 802.11 PHY 00:13:43
    7. 2.6 Wireshark and The OSI Layers 00:01:26
    8. Summary 00:01:05
  4. Lesson 3: MAC Header--Layer 2
    1. Learning objectives 00:01:29
    2. 3.1 MAC Header Format 00:10:48
    3. 3.2 Management Frames to Discover the Cell 00:12:29
    4. 3.3 Frames to Connect and Stay Connected 00:10:13
    5. 3.4 Retry Bit, Power Bit 00:06:12
    6. 3.5 Failed FCS and Capture Vantage Point 00:13:50
  5. Lesson 4: Dissecting a Captured Frame
    1. Learning objectives 00:01:49
    2. 4.1 OSI Model Mapping 00:05:32
    3. 4.2 Displaying Data 00:03:47
    4. 4.3 Encrypted Traffic 00:08:34
    5. 4.4 Configuring a WLAN Profile 00:07:07
    6. 4.5 Building a WLAN Analysis Profile 00:08:55
    7. 4.6 Importing a Color Profile 00:03:48
  6. Lesson 5: Filtering Wireless Traffic
    1. Learning objectives 00:01:28
    2. 5.1 Examining Normal Exchanges 00:06:53
    3. 5.2 Capture Filters and Troubleshooting Techniques 00:12:28
    4. 5.3 Traffic Filter Howto 00:09:19
    5. 5.4 Display Filters 00:13:45
    6. 5.5 Sharing Filters 00:03:36
    7. Summary 00:01:10
  7. Lesson 6: Wireshark Advanced Tools
    1. Learning objectives 00:04:56
    2. 6.1 Following UDP/TCP Conversations 00:12:16
    3. 6.2 Graphs, Conversations, and Endpoints 00:08:18
    4. 6.3 Using the IO Graph 00:10:37
    5. 6.4 Wireshark from the CLI 00:03:33
    6. 6.5 Using a Ring Buffer 00:08:47
    7. 6.6 Displaying Statistics at the CLI 00:07:43
    8. 6.7 Editing Capture Files 00:04:13
    9. 6.8 Reassembling Flows 00:08:30
    10. 6.9 Advanced Examples 00:00:32
  8. Lesson 7: Common Symptoms Part 1
    1. Learning objectives 00:01:41
    2. 7.1 Management Frames 00:07:40
    3. 7.2 Control Frames 00:09:11
    4. 7.3 Data Frames 00:08:43
    5. 7.4 Retransmissions 00:09:51
    6. 7.5 Failed FCS 00:04:51
    7. Summary 00:00:25
  9. Lesson 8: Common Symptoms Part 2
    1. Learning objectives 00:01:10
    2. 8.1 Slow Connection 00:14:30
    3. 8.2 Can't Connect 00:07:39
    4. 8.3 Can't Stay Connected 00:06:29
    5. Summary 00:00:22
  10. Lesson 9: Statistical Analysis and Pattern Recognition
    1. Learning objectives 00:02:15
    2. 9.1 Selecting Data to Export 00:14:24
    3. 9.2 Graphing in Excel 00:10:00
    4. 9.3 Examples of Pattern Recognition in Excel 00:17:51
    5. 9.4 Probe as Happiness Index 00:07:02
    6. 9.5 Configuration Comparisons and Voice Performance 00:06:42
    7. 9.6 Rate Shifting Pattern Measurement 00:04:57
    8. 9.7 Pattern General Case 00:07:19
    9. 9.8 Using Other Graphing Tools 00:16:35
    10. 9.9 Sharing Your Findings 00:11:01
  11. Summary
    1. Wireshark for Wireless LANs: Summary 00:03:19