This exercise is a bit different. Instead of merely observing packets, we are going to be directly involved in their journey by simulating a network using GNS3. Let us start the fun! Item 1: Planning the network For this exercise, we are making a network with a /20 subnet mask.…
This blog post contains answers from Kurose's Wireshark Lab on TCP. I highly recommend that you follow along as well by going to the original lab exercise! This laboratory exercise explored the behavior of TCP by analyzing a trace of the TCP segments sent and received in transferring…
In this lab, the nslookup utility is used together with Wireshark to investigate the DNS protocol. It also used a web browser (in this case, Firefox) to gain insights on how the DNS protocol is used in real-world scenarios. nslookup The figure above shows nslookup’s output when run on…