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Buying a Pc

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Tracing Ethernet Hands-On Lab
Instructions:
Refer to Hands-On Activity “Tracing Ethernet” on pages 227 and 228 in the textbook. For your convenience the setup application is attached to this lab in Blackboard, so you don’t need to find it online as instructed in the activity. Read the textbook authors comments and discussions for the activity to gain an understanding of the tool and the types of measurements it can take.
For this Lab you will need to install TracePlus/Ethernet on your (Windows) computer. (If you have a Mac, the application works fine in VMWare, Parallels, etc. Alternatively, you may use WireShark, Capsa Free, or Packet Peeper, as identified below). In addition to your textbook, refer to your notes taken during the demo of the tool in class. Open the app and select the proper capture interface (Ie – e01, e02, etc. These are your wired connections and wireless connection interfaces, if you have wireless. You may need to try various Ethernet Ports to find some data and get connected to the right interface. You will know you are collecting data when you see packets of information are being displayed. You will see an entry for each packet that arrives). Once the application running and collecting packets of data, as demonstrated in class, do the following: (1) Launch a YouTube video in your browser. Notice the increase in Packets. If you are using TracePlus, you can also see the increase in Bandwidth and %Bandwidth on the virtual Dashboard. Record the number of Packets. Look at the total inbound and outbound traffic. Which is greater and what are the values? (Tip: if you are using Wireshark, which does not have the visual dashboard, look under “Statistics” and “Conversations” to locate this information. For example Packets A->B is out and Packets A<-B is in. For Packet Peeper, you will not easily be able to determine and distinguish inbound and outbound traffic. Note in your write-up that you were using Packet Peeper and could not do this one step or try to figure out a way to guess which type of traffic might be great – inbound or outbound). (2) What types of packets Protocols are being sent and used on the network? (TCP, UDP, POP, etc) Which are the greatest in number? Why do you think there are there no IPX or Appletalk Packets present? (Lookup IPX and Appletalk online to determine what these network protocols are used for). (3) Click on each of the packets and look at the ASCII data. What kind of information does the packet capture show? What are the ramifications of someone running a tool such as this in a public network? How can you protect yourself from someone observing your data? Take a screenshot showing the data from a sample packet. (Tip: to take a screen shot in Windows, hit the print screen key, then paste the info into your Word file. For the Mac, enter “Shift-Command-3” to create a file with the screenshot on your desktop. (4) Write-up the results/answers of items 1-3 above and insert your screenshot. At the end, include your impressions and things you learned by using this tool. The Lab write-up should be 1-2 double-spaced pages in MS Word format and should include your name and course number at the top of the document.
TracePlus is designed for Windows Vista and older and may not work properly if you are running Windows 7. If you have trouble getting TracePlus/Ethernet to work try to uninstall it and reinstall it. If this still does not work, you can use a different program altogether. Another program is called WireShark and provides very similar functionality to TracePlus/Ethernet. You can learn more about WireShark at www.wireshark.org and download the app at http://www.wireshark.org/download.html. Wireshark IS available for the Mac OR Windows. (note the .org URL since it is opensource). Do NOT use .com. Another app for Windows that you can try is Capsa Free. You can download a 15 day free trial from http://c.colasoft.com/g1cCrq. For Mac users, one more option is available, called Packet Peeper. This application is available at http://packetpeeper.sourceforge.net/ and this site provides some information of the use of Packet Peeper.
If you are having trouble understanding what you are observing, do the best you can to figure it out, reading through the documentation for the application, etc. The goal of this lab is to allow you to see how a packet analyzer works and to better understand how network data is sent (in packets), following a certain protocol. Another goal is to learn about information security online.
Submit your completed Lab in a Word formatted document (with your imbedded screenshots) to Blackboard for grading by 2/21 before class. NAME your file using your first name and last name as follows: first_last_lab1.docx
For example, guy_cortesi_lab1.docx would be a valid name. Be sure to CAREFULLY PROOF your work for spelling and grammar. This is to be a thorough and carefully written analysis and discussion. Check to be sure you have answered all the questions and included all of the requested items.
This lab is worth 20 points. Labs will be graded on a 20-point scale and will be averaged together to account for 20% of the final grade. Late submittals, accepted up to 72 hours past the due date will receive a 5 point penalty for every 24 hours they are late (25%/day).
BONUS: For a 1 point bonus, (20%) try both TracePlus/Ethernet (or Capsa Free) AND Wireshark. Document the results of BOTH apps, with screenshots and write-ups from both apps. If you are a Mac user and would like a 20% bonus, use both Wireshark and Packet Peeper and write-up the results for both.

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