You're reading from Learn Wireshark A definitive guide to expertly analyzing protocols and troubleshooting networks using Wireshark

Product type Paperback

Published in Aug 2022

Publisher Packt

ISBN-13 9781803231679

Length 606 pages

Edition 2nd Edition

Languages

TCP

Tools

Wireshark

Concepts

Networking

Author (1):

Lisa Bock

View More author details

Table of Contents (28) Chapters

Preface

1. Part 1 Traffic Capture Overview

2. Chapter 1: Appreciating Traffic Analysis FREE CHAPTER

3. Chapter 2: Using Wireshark

4. Chapter 3: Installing Wireshark

5. Chapter 4: Exploring the Wireshark Interface

6. Part 2 Getting Started with Wireshark

7. Chapter 5: Tapping into the Data Stream

8. Chapter 6: Personalizing the Interface

9. Chapter 7: Using Display and Capture Filters

10. Chapter 8: Outlining the OSI Model

11. Part 3 The Internet Suite TCP/IP

12. Chapter 9: Decoding TCP and UDP

13. Chapter 10: Managing TCP Connections

14. Chapter 11: Analyzing IPv4 and IPv6

15. Chapter 12: Discovering ICMP

16. Part 4 Deep Packet Analysis of Common Protocols

17. Chapter 13: Diving into DNS

18. Chapter 14: Examining DHCP

19. Chapter 15: Decoding HTTP

20. Chapter 16: Understanding ARP

21. Part 5 Working with Packet Captures

22. Chapter 17: Determining Network Latency Issues

23. Chapter 18: Subsetting, Saving, and Exporting Captures

24. Chapter 19: Discovering I/O and Stream Graphs

25. Chapter 20: Using CloudShark for Packet Analysis

26. Assessments

27. Other Books You May Enjoy

An overview of the OSI model

The OSI model is a seven-layer framework that outlines the main functions of each layer, which represents a grouping of protocols that perform a specific function. Understanding the model will better prepare you for analyzing traffic with Wireshark. In addition, you'll be able to recognize the role of the protocols involved during a transaction.

Note

All protocols have a specific purpose on the network. Today, Wireshark has dissectors for most protocols, and new ones are added all the time.

In this section, we'll take a step back and learn how the framework began, along with recognizing who benefits from using this model.

Let's start with the inspiration behind the OSI model.

Developing the framework

We started this journey during the period of the late 1960s to the mid-1970s, where we saw an expansion in computing, along with advances in technology in general. In addition to this, we witnessed the development of computers...