CS 3516: Computer Networks

Lab 2

DUE DATE: September 21, 2019 (Monday) (11:59pm)

Description

This is the second in the series of Wireshark labs. Here you will learn about how DNS works. You will turn in (multiple) .pcap traces as well as answers to some questions based on the data you gathered.

Details

  1. The WireShark lab that you have to work through can be found here Wireshark Lab: DNS
  2. Note that for Q3, Q20-23, you may want to use some public DNS servers. Please read this note for more details (Note on Question 3, 20-23)
  3. This assignment is worth - 25 points + 2 bonus points
  4. The points allotted to each question for this lab is given parenthesis next to the question
  5. You will need a computer (desktop or laptop) that you can use to install and run Wireshark. Wireshark is available from www.wireshark.org, where you can download binaries for Windows, OS X, and Linux.
  6. If you DO NOT have access to a computer you can run Wireshark on, you must let us know as soon as possible. We will do our best to find a way you can still complete the Wireshark projects.
  7. Follow the instructions in the lab carefully, with the one exception that you must Save your capture file (Via "File" --> "Save") as the very last step before exiting Wireshark. This will give you a .pcap file which you need to submit.

Important Notice (Read carefully)

You must not run Wireshark in promiscuous mode. Promiscuous mode is checked on by default, but can be unchecked in the "Capture" --> "Options" window (where you can select the device and other options). Besides preventing you from violating the AUP by potentially collecting other's traffic, turning off promiscuous mode will greatly reduces the data you are analyzing and collecting, making it easier to read results and submit the data.

Submission

The very last a few pages of the lab includes some questions you are to answer, demonstrating that you have been able to get Wireshark up and running, and have explored some of its capabilities. Your submission should include:

  1. A PDF document, with your name, lab name ("Lab 2"), and WPI login at the top , with answers to the questions.
  2. Wireshark capture files that you used to answer the questions.
Combine (via zip or tar) everything up into a single archive file named "your-wpi-login_lab2.zip".

Submit your document electronically via Canvas (https://canvas.wpi.edu) by 11:59pm on the day the assignment is due.

Make sure you choose "Lab 2" under Project drop-down before uploading the zip file.

Failure to include EITHER of the .pcap files with your submission zip file will result a score of ZERO.