Learn Wireshark: Confidently navigate the Wireshark interface and solve real-world networking problems (English Edition)

Grasp the basics of packet capture and analyze common protocols

Key Features

Troubleshoot basic to advanced network problems using packet analysis

Analyze common protocols and identify latency issues with Wireshark

Explore ways to examine captures to recognize unusual traffic and possible network attacks

Book Description

Wireshark is a popular and powerful packet analysis tool that helps network administrators investigate latency issues and identify potential attacks.

Learn Wireshark provides a solid overview of basic protocol analysis and helps you to navigate the Wireshark interface, so you can confidently examine common protocols such as TCP, IP, and ICMP. The book starts by outlining the benefits of traffic analysis, takes you through the evolution of Wireshark, and then covers the phases of packet analysis. We’ll review some of the command line tools and outline how to download and install Wireshark on either a PC or MAC. You'll gain a better understanding of what happens when you tap into the data stream, and learn how to personalize the Wireshark interface. This Wireshark book compares the display and capture filters and summarizes the OSI model and data encapsulation. You'll gain insights into the protocols that move data in the TCP/IP suite, and dissect the TCP handshake and teardown process. As you advance, you'll explore ways to troubleshoot network latency issues, and discover how to save and export files. Finally, you'll see how you can share captures with your colleagues using Cloudshark.

By the end of this book, you'll have a solid understanding of how to monitor and secure your network with the most updated version of Wireshark.

What you will learn

Become familiar with the Wireshark interface

Navigate commonly accessed menu options such as edit, view, and file

Use display and capture filters to examine traffic

Understand the Open Systems Interconnection (OSI) model

Carry out deep packet analysis of the Internet suite: IP, TCP, UDP, ARP, and ICMP

Explore ways to troubleshoot network latency issues

Subset traffic, insert comments, save, export, and share packet captures

Who this book is for

This book is for network administrators, security analysts, students, teachers, and anyone interested in learning about packet analysis using Wireshark. Basic knowledge of network fundamentals, devices, and protocols along with an understanding of different topologies will be beneficial. Table of Contents

Appreciating Traffic Analysis

Using Wireshark NG

Installing Wireshark on a PC or macOS

Exploring the Wireshark Interface

Tapping into the data stream

Personalizing the Interface

Using display and capture filters

Outlining the OSI Model

Decoding TCP and UDP

Managing TCP Connections

Analyzing IPv4 and IPv6

Discovering ICMP

Understanding ARP

Troubleshooting Latency Issues

Subsetting, Saving, and Exporting Captures

Using Cloudshark For Packet Analysis

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