Homework 1: Analyze a packet trace
Due by classstime on WEEK THREE, i.e., Jan. 21.
For this activity, please use the packet capture file you downloaded in class. (Here it is again.) Answer these questions using Assignment 1 on our Canvas site.
(Note: can’t get Wireshark to work on your computer? Here’s an alternative assignment that doesn’t require Wireshark.)
- You’ll notice that a number of TCP packets contain the mysterious code words SYN, ACK, and sometimes FIN. What do each of these words mean?
- Some packets contain a “Protected Payload.” What do you think that is?
- Many TCP packets contain the phrase https(443). What is 443? What is being communicated with this formulation?
- Pick a protocol from the packet capture that we haven’t discussed (i.e., not dns, http, udp, or tcp). Explain what it’s used for and what it’s accomplishing in a specific numbered packet.