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

Comparing ARP attacks and defense methods

ARP is a widely used protocol that resolves an IP address to a MAC address. In most cases, ARP works well to ensure devices can find one another. However, the protocol was standardized many years ago, and there has never been a way to ensure the authenticity of ARP messages.

As a result, we'll outline a few ARP attacks that can misdirect traffic and interfere with normal network behavior. In response, we'll also take a look at some of the ways to defend against these types of attacks.

Let's begin by covering some of the attacks against ARP.

Comparing ARP attacks and tools

ARP is used on a LAN, which can be a vulnerable target. Some of the attacks and techniques used to penetrate an ARP framework include spoofing and storming, which can misdirect traffic or cause problems on the network. In this section, we'll compare some of the attacks you or a colleague might encounter.

Let's start...