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Packet Analysis with Wireshark Analyzer (PAW)

Course Description Schedule Course Outline

Detailed Course Outline

1. Overview of Wireshark

  • Basic Wireshark functionality
  • Platforms supported
  • Wireshark functions
  • Special hardware: AirPCAP, TurboPCAP
  • OSI Reference Model
  • Protocol Layers in practice

2. Using Wireshark - User Interface and Navigation

  • Configuring the Panes
  • Wireshark Toolbars
  • Decode and Hexview
  • Meta information
  • Status bar
  • Dropped Frames – 1GB Capture Example
  • Configuration
  • Column Configuration
  • Delta Time Settings
  • Relative Time and Cumulative Bytes
  • Search function
  • Marking Frames
  • Filtering and Filter Types
  • Display Filters
  • Logical Operators
  • Negative Filters
  • Capture Filters
  • Interface list options
  • Capture Filter List
  • Filter References
  • File Management
  • Extracting and Exporting files

3. Additional Configuration Options and Tools

  • Name Resolution
  • MAC Address Name Resolution
  • Network Name Resolution
  • Manual Network Name Resolution
  • Protocol Name Resolution
  • GeoIP Localization
  • Color Settings
  • Packet Colorization
  • Hands-On
  • Protocol Reassembly
  • Reassembly: Pro and Con
  • Wireshark Peculiarities Offloading, Padding, etc
  • Wireshark point of capture
  • Erroneous Checksum Report
  • Invalid Packet Size
  • Configuration Profiles
  • Configuration File Paths
  • Commandline Tools
    • tshark
    • dumpcap
    • editcap
    • mergecap

4. Functions and Statistics

  • Functions and Statistics
  • Baselining
  • Hosts, Sessions, Protocols
  • Summary Statistics
  • Endpoint List
  • Endpoint List Filters
  • Conversations
  • Protocol Hierarchy
  • I/O and TCP Stream Graphs
  • Flow Graph
  • Wireshark Expert
  • Service Response Time

5. Analysis Fundamentals

  • Network, Server, Client, or Application?
  • Step 1: Describe the Problem
  • Step 2: Planning the Capture
  • Step 3: Capture the data
  • Capturing at the server
  • Selecting the Point of Capture
  • Capturing on a Switch
  • Capturing with Hubs/Mini Switches
  • Response time, Throughput, Overhead, Throughput and Overhead

6. Troubleshooting

  • Troubleshooting – Introduction
  • Correcting problems
  • Typical Network Problems
  • Layer 2, Layer 3
  • Layer 4
  • Typical Application Problems
  • Performance Factors
  • Application Types
  • Application Design Errors
  • Performance Parameters
  • Determining Actual Performance
  • Throughput: Measuring Bandwidth
  • Measuring Response Times

LAB Exercises:

  • 1–1 Installing Wireshark
  • 2–1 Column Configuration
  • 2–2 Searching in a Trace
  • 2–3 Display Filter
  • 2–4 Capture Filters
  • 3–1 Searching in a Trace
  • 3–2 TCP Re-Assembly
  • 4–1 TCP Graphs
  • 4–2 Service Response Times
  • 5–1 Display Filter
  • 6–1 Troubleshooting Case Study
 

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