Install Wireshark:

Before doing homework, familiarize yourself with the application and learn how to use it. Below links will be useful in this regard. Note that the new version of Wireshark might have a slightly different interface with the one introduced in the following links. However, the overall structure is almost same and the way to data packets is same:

•    http://www.youtube.com/watch?v=U0QABcTD-xc (11 min 42 sec)
•    http://wiresharkdownloads.riverbed.com/video/wireshark/introduction-to-wireshark/ (5min 51sec)
•    http://wiresharkdownloads.riverbed.com/video/wireshark/custom-shortcuts/ (2min 26sec)
•    And more: https://www.wireshark.org/docs/

To start capturing data packets from your system (source) to destination follow the below steps.

–    Go to Capture ? Interfaces ? and here select your active interface and then click ‘Start’? continue with your browsing

Now, open your web browser and go to http://www.ucdenver.edu page

Deliverables:

1)    Using Internetor any other resources, write one paragraph (less than a half page) of how Wireshark is used to manage computer networks?
2)    Right click on HTTP packet and select ‘Follow TCP stream’. Then, it will show you a result window as represented in Figure 6.1
a.    What are the HTTP headers fields in the first client request and the first server response?
b.    What are the values in these fields? (Like Host and its value, Date and time etc…)

Figure 6.1

Figure 6.2
3)    What are the arguments to these GET requests(see Figure 6.2 for the same)? Describe them.
4)    Select any HTTP packet
a.    List its source and destination Ethernet addresses.
b.    List its source and destination IP addresses.
Support your answer along with a screenshot.

.