Practical Packet Analysis

Chapter 7. BASIC CASE SCENARIOS

Now we've arrived at the real meat and bones of this book—we are ready to use Wireshark and packet analysis to actually analyze network problems.

We'll begin with a look at some simple scenarios in which our ability to analyze packets will help us to better understand what's going on behind the scenes. Then we'll look at some simple real-world troubleshooting scenarios that you could very possibly encounter on a daily basis. Let's dive in.

A Lost TCP Connection

One of the most common problems we encounter when troubleshooting is a loss of network connectivity. For now, we'll ignore the reasons why that loss of connectivity might occur and take a look at what that loss actually looks like at the packet level, so you ...