CNT 4704: Computer Communication Networks
Fall 2010
Lab assignment 1: Getting familiar with Wireshark software.
(Assigned Sept. 2nd, Due date: Sept. 9th midnight via WebCourse)
In this simple assignment, you will install Wireshark software on your own desktop/laptop computer and get to know the basic procedure on how to use it to check network traffic.
Please go to: http://www.wireshark.org/ to download the software.
I want you to follow what I have demonstrated in class to capture the http traffic when you check any one website. For the example of the procedure, please see this lab assignment from Prof. Jim Kurose.
Then answer the following questions:
1. What is the IP address of your computer and the IP address of the website you connected? Did the web server keep the connection open? Did the server run HTTP 1.0 or 1.1?
2. How long did it take from when the HTTP GET message was sent until the HTTP OK reply was received?
3. Save the HTTP GET message and the HTTP OK message (these two packets should be the first two http packets captured by Ethereal). For the first HTTP GET message, first select this packet, then goto menue "File" -> "Export" -> "as 'Plain Text' file...", which will save this HTTP GET message into a plaintext file. Do this also for the HTTP OK message. Then copy the content of both plain-text file into the end of your lab report.
After finishing your lab report, submit it through Webcourse@UCF.