University : Edith Cowan University UniLearnO is not sponsored or endorsed by this college or university.
Subject Code : CSG1105
Country : Australia
Assignment Task

 

Task 1 Web connection trace You are to use Wireshark to capture a connection to gaia.cs.umass.edu/wireshark-labs/alice.txt (or any other HTTP connection to a text file) and provide:

1. An explanation of the TCP 3-way handshake

2. The process of the HTTP connection which retrieves and displays the text file The following shows an example of how to generate HTTP traffic.

a) Clear the browser’s cache

b) Open Wireshark and start capturing.

c) Open your browser and access the gaia.cs.umass.edu/wireshark-labs/alice.txt site.

d) Stop capturing the packets and close the browser.

e) Find the protocol packets and complete the tasks.

Task 2 TCP/IP Encapsulation Generate and capture your own IP traffic and packets and inspect TCP/IP model layers (TCP, IP & Network Access) and fields. Analyse and explain encapsulation processes with TCP/IP layers and the header size of each layer and their payload sizes. Briefly explain how the decapsulation process is conducted.

Task 3 SMTP message There is a saved Wireshark capture (mail_sender_attachment.pcapng) in Blackboard of a client connecting to a non-secure SMTP (Simple Mail Transfer Protocol) server and downloading an email message. Load the capture file into Wireshark and provide an explanation of the process of connecting to the mail server and retrieving the message.

 

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  • Posted on : August 31st, 2019
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