Book Image

Learn Wireshark, - Second Edition

By : Lisa Bock
5 (1)
Book Image

Learn Wireshark, - Second Edition

5 (1)
By: Lisa Bock

Overview of this book

Wireshark is a popular and powerful packet analysis tool that helps network administrators investigate latency issues and potential attacks. Over the years, there have been many enhancements to Wireshark’s functionality. This book will guide you through essential features so you can capture, display, and filter data with ease. In addition to this, you’ll gain valuable tips on lesser-known configuration options, which will allow you to complete your analysis in an environment customized to suit your needs. This updated second edition of Learn Wireshark starts by outlining the benefits of traffic analysis. You’ll discover the process of installing Wireshark and become more familiar with the interface. Next, you’ll focus on the Internet Suite and then explore deep packet analysis of common protocols such as DNS, DHCP, HTTP, and ARP. The book also guides you through working with the expert system to detect network latency issues, create I/O and stream graphs, subset traffic, and save and export captures. Finally, you’ll understand how to share captures using CloudShark, a browser-based solution for analyzing packet captures. By the end of this Wireshark book, you’ll have the skills and hands-on experience you need to conduct deep packet analysis of common protocols and network troubleshooting as well as identify security issues.
Table of Contents (28 chapters)
1
Part 1 Traffic Capture Overview
6
Part 2 Getting Started with Wireshark
11
Part 3 The Internet Suite TCP/IP
16
Part 4 Deep Packet Analysis of Common Protocols
21
Part 5 Working with Packet Captures

Summary

In this chapter, we explored all of the elements of the Wireshark welcome page, to give you a better understanding of what is available, even before opening a packet capture. We also took a closer look at commonly accessed menu choices to make navigating around Wireshark easier. First, we evaluated the File menu, which has all of the tasks commonly associated with working with a file.

Next, we studied the Edit menu, which allows you to find and mark packets, set a time reference, or modify your preferences. We concluded with the View menu, where you can alter the appearance of the captured packets, including how to colorize them, zoom in, or show a packet in a separate window.

In the next chapter, we will learn where and how to tap into a data stream. Because what you see when capturing data will depend on the type of network you are accessing, we will review the different network architectures. Then, when you are ready to capture, we will discover the various capture...