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Course recordings on DaDesktop for Training platform

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Summary

Overview

This session is a hands-on course exercise focused on configuring custom columns in a network analysis tool (likely Wireshark or similar), with an emphasis on identifying and displaying protocol-specific fields such as sequence number and annihilation number. The trainer guides learners through the process of filtering and adding columns, monitors progress, and provides troubleshooting support for connectivity issues during the exercise.

Topic (Timeline)

1. Exercise Introduction and Setup [00:00:00 - 00:00:33]

The trainer introduces a simple exercise requiring learners to filter a .bcap file and configure custom columns. Learners are given time to work independently with no time pressure, and instructed to notify the trainer upon completion for verification.

2. Progress Check and Support Offer [00:01:01 - 00:01:39]

The trainer checks in to invite questions and confirms learners are proceeding without issues. A direct inquiry is made to identify any problems encountered during the exercise.

3. Protocol Column Identification and Layer Navigation [00:01:43 - 00:03:02]

The trainer explains how to locate specific fields—sequence number and annihilation number—by navigating to their respective protocol layers within the captured data. Learners are instructed to click on a protocol record to expose these fields in the column view. The trainer continues monitoring learner progress while addressing a participant’s connectivity issue, suggesting reconnection and desktop restart as remediation steps.

4. Connectivity Troubleshooting and Exercise Continuation [00:03:02 - 00:03:44]

The trainer pauses the session to assist with a suspected network issue, terminates the participant’s desktop connection to reduce load, and advises reconnection. The session concludes with a final check-in, emphasizing that learners should be able to create custom columns; learners are encouraged to speak up if they are completely unfamiliar with the process.

Appendix

Key Concepts

  • Custom columns can be added by navigating to the relevant protocol layer in the packet details pane.
  • Fields like “sequence number” and “annihilation number” are protocol-specific and appear only when the corresponding protocol is selected.
  • Filtering (.bcap files) is a prerequisite step before column configuration.

Tools Used

  • Network capture analysis tool (likely Wireshark or equivalent) with .bcap file support.
  • Remote desktop environment for learner access.

Common Pitfalls

  • Inability to locate protocol-specific fields due to incorrect layer selection.
  • Connectivity issues disrupting remote access during hands-on tasks.

Practice Suggestions

  • Practice filtering different capture files and identifying protocol fields manually.
  • Experiment with adding multiple custom columns for different protocol layers (e.g., TCP, UDP, HTTP).
  • Reconnect and restart remote sessions if performance degrades during live demonstrations.