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

Chapter 4: Exploring the Wireshark Interface

When you launch Wireshark for the first time, it's sometimes puzzling having to navigate the interface until you are familiar with all of the elements. Once you have a grasp of all the components, toolbars, and menu choices, you can capture and analyze traffic more efficiently. In this chapter, we'll start by exploring the Wireshark interface and reviewing all of the essentials of the welcome screen, including the sparklines, capture filters, and interfaces.

Although Wireshark currently has over 10 menu choices, in most cases, you'll find that there are a few that are more commonly accessed. So that you are more confident when moving about the interface, we'll examine the File menu, where you can open a file, save, print, and export a capture. We'll also investigate the Edit menu, where you can mark packets, set time references, and add comments. Finally, we'll take a look at the View menu so that you can...