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Wireshark 2 Quick Start Guide

By : Mishra

5 (1)

Buy this Book

Wireshark 2 Quick Start Guide

5 (1)

By: Mishra

Buy this Book

Overview of this book

Wireshark is an open source protocol analyser, commonly used among the network and security professionals. Currently being developed and maintained by volunteer contributions of networking experts from all over the globe. Wireshark is mainly used to analyze network traffic, analyse network issues, analyse protocol behaviour, etc. - it lets you see what's going on in your network at a granular level. This book takes you from the basics of the Wireshark environment to detecting and resolving network anomalies. This book will start from the basics of setting up your Wireshark environment and will walk you through the fundamentals of networking and packet analysis. As you make your way through the chapters, you will discover different ways to analyse network traffic through creation and usage of filters and statistical features. You will look at network security packet analysis, command-line utilities, and other advanced tools that will come in handy when working with day-to-day network operations. By the end of this book, you have enough skill with Wireshark 2 to overcome real-world network challenges.

Preface

Who this book is for

What this book covers

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Free Chapter

Installing Wireshark

Introduction to Wireshark

A brief overview of the TCP/IP model

The layers in the TCP/IP model

Summary

Introduction to Wireshark and Packet Analysis

What is Wireshark?

An introduction to packet analysis with Wireshark

Capturing methodologies

Summary

Filtering Our Way in Wireshark

Introducing filters

Capture filters

Searching for packets using the Find dialog

Create new Wireshark profiles

Summary

Analyzing Application Layer Protocols

Domain Name System (DNS)

File transfer protocol

Hypertext Transfer Protocol (HTTP)

Simple Mail Transfer Protocol (SMTP)

Summary

Analyzing the Transport Layer Protocols TCP/UDP

The transmission control protocol

The User Datagram Protocol

Summary

Network Security Packet Analysis

Information gathering

ARP poisoning

Analysing brute force attacks

Summary

Analyzing Traffic in Thin Air

Understanding IEEE 802.11

Usual and unusual wireless traffic

Decrypting wireless network traffic

Summary

Mastering the Advanced Features of Wireshark

The Statistics menu

Summary

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Searching for packets using the Find dialog

For searching packets that meets a criterion use the Find tool bar adjacent to display filter. You can access the Find utility by navigating to Edit | Find packets or using the shortcut Ctrl + F:

The Find Packet dialog

You can also use the following filters for finding packets:

Let's see some more configurable options available:

The display filter: Find packets based on specific IP /Port/ Protocol, for example:
- ip.addr == 192.168.1.1 (based on an IP address)
- port 8080 (based on a port number)
- http (based on a protocol)
The Hex value: If you have the hex value for a packet, then use this option. For example, write in the physical address separated by colons, for example:
- 0A:C4:22:90:45:00
- AA:BB:CC
String: Enter the name of the DNS server, name of the machine, and any name that you are looking for (enter any string...