Lab

Learnig about HTTP Protocol

Pre-Lab - In Class:

Understanding the web delivery mechanism (HTTP)

Lab Assignment:

A- Study the demo example for HTTP protocol (download example from http.cap ) . Answer to to the following questions:

• Who initiate the TCP termination. Explain your answer.
• What is the flag definition for ACK message?
• What version of HTTP trasfer protocol is using? Explain your answer.
• How many bytes are in a TCP SYN Frame? Using a rectangular frame (you can use VISIO) show the size of all embedded segments, frames, data, flags, etc.
• What version of IP is a SYN frame using?
• How many HTTP requests can be found in this example? What type of requests are they? Write their packet numbers.

B- Do The HTTP Wireshark Lab. Answer all the questions. All questions must be clearly shown.

C- Capturing password on an unsecure webpage:

1. Using Wireshark, show that it is possible to capture the password for this website: Secure Web. Show a snapshot of your results.
2. Can you display your sonoma.edu password using Wireshark? Explain your answer.

Advanced topics for future (extra credit)

1. This is a very nice posting as to how to decrypt secure http