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Network Analysis using Wireshark 2 Cookbook
Network Analysis using Wireshark 2 Cookbook

Network Analysis using Wireshark 2 Cookbook: Practical recipes to analyze and secure your network using Wireshark 2 , Second Edition

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Profile Icon Nagendra Kumar Nainar Profile Icon Yoram Orzach Profile Icon Yogesh Ramdoss
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Full star icon Full star icon Full star icon Full star icon Half star icon 4.3 (6 Ratings)
Paperback Mar 2018 626 pages 2nd Edition
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Arrow left icon
Profile Icon Nagendra Kumar Nainar Profile Icon Yoram Orzach Profile Icon Yogesh Ramdoss
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$54.99
Full star icon Full star icon Full star icon Full star icon Half star icon 4.3 (6 Ratings)
Paperback Mar 2018 626 pages 2nd Edition
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Network Analysis using Wireshark 2 Cookbook

Mastering Wireshark for Network Troubleshooting

In this chapter, you will learn about the following:

  • Configuring the user interface, and global and protocol preferences
  • Importing and exporting files
  • Configuring coloring rules and navigation techniques
  • Using time values and summaries
  • Building profiles for troubleshooting

Introduction

In this chapter, we cover issues that improve the use of Wireshark as a network analysis tool. We start with configuring the user interface, and setting global and protocol preferences. Next, we talk about Wireshark folders, configuration files, and folders and plugins.

We continue with coloring rules and how to configure them. We also talk about the intelligent scrollbar added to Wireshark Version 2, which can be used for traffic patterns and behavior recognition.

We close this chapter with profiles and how to use them. Profiles are sets of display and capture filters, coloring rules, and preferences set for a specific environment, protocols or networking issues that are previously configured to ease network troubleshooting. Profiles are explained, along with helpful profiles that are attached to this book.

Configuring the user interface, and global and protocol preferences

The Preferences menu enables us to adapt the display to the way we want to see it, and configuring protocol preferences provides us with the ability to change the way that Wireshark captures and presents common protocols. In this recipe, we will learn how to configure the most common protocols.

Getting ready

Go to Preferences in the Edit menu, and you will see the following window:

In the Preferences window, we have menus from which we choose what we want to configure, while the configuration parameters appear on the right.

How to do it...

...

Importing and exporting files

It is quite common to see a need to share the packet capture file with other operational teams or the vendor for root cause analysis. Such capture files may have a lot of packets, while our interest is in only a specific flow or a set of packets. Instead of sharing the entire file, Wireshark allows you to selectively export the packets into a new file, or even modify the format for easier file transportation. In this recipe, we will discuss the import and export options available in Wireshark.

Getting ready

Start Wireshark or open a saved file.

How to do it...

...

Configuring coloring rules and navigation techniques

Coloring rules define how Wireshark will color protocols and events in the captured data. Working with the coloring rules will help you a lot with network troubleshooting, since you are able to see different protocols in different colors, and you can also configure different colors for different events.

Coloring rules enable you to configure new coloring rules according to various filters. It will help you to configure different coloring schemes for different scenarios and save them in different profiles. In this way, you can configure coloring rules for resolving TCP issues, rules for resolving SIP and telephony problems, and so on.

You can configure Wireshark profiles in order to save a Wireshark configuration, for example predefined colors, filters, and so on. To do so, navigate to Configuration Profiles from the Edit menu...

Using time values and summaries

Time format configuration is about how the time column (second from the left in the default configuration) will be presented. In some scenarios, there is an importance given to this, for example, in TCP connections where you want to see time intervals between packets, or when you capture data from several sources and you want to see the exact time of every packet.

Getting ready

To configure the time format, go to the View menu, and under Time Display Format, you will get the following window:

How to do it...

You can choose from the following...

Building profiles for troubleshooting

You can configure Wireshark profiles in order to save Wireshark configuration, for example by setting predefined colors, capture and display filters, and so on. To do so, navigate to Configuration Profiles from the Edit menu.

Configuration profiles store the following information:

  • Preferences, including general and protocol preferences, for example pane sizes, text size and font, column width, and so on
  • Capture filters
  • Display filters and display filter macros (see Chapter 4, Using Display Filters)
  • Coloring rules
  • Customized HTTP, IMF, and LDAP headers (see Chapter 12, FTP, HTTP1, and HTTP2)
  • User-defined decodes, for example a decode as a functionality that enables you to temporarily divert specific protocol dissections

All profiles are saved in the profiles directory.

...
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Key benefits

  • Place Wireshark 2 in your network and configure it for effective network analysis
  • Deep dive into the enhanced functionalities of Wireshark 2 and protect your network with ease
  • A practical guide with exciting recipes on a widely used network protocol analyzer

Description

This book contains practical recipes on troubleshooting a data communications network. This second version of the book focuses on Wireshark 2, which has already gained a lot of traction due to the enhanced features that it offers to users. The book expands on some of the subjects explored in the first version, including TCP performance, network security, Wireless LAN, and how to use Wireshark for cloud and virtual system monitoring. You will learn how to analyze end-to-end IPv4 and IPv6 connectivity failures for Unicast and Multicast traffic using Wireshark. It also includes Wireshark capture files so that you can practice what you’ve learned in the book. You will understand the normal operation of E-mail protocols and learn how to use Wireshark for basic analysis and troubleshooting. Using Wireshark, you will be able to resolve and troubleshoot common applications that are used in an enterprise network, like NetBIOS and SMB protocols. Finally, you will also be able to measure network parameters, check for network problems caused by them, and solve them effectively. By the end of this book, you’ll know how to analyze traffic, find patterns of various offending traffic, and secure your network from them.

Who is this book for?

This book is for security professionals, network administrators, R&D, engineering and technical support, and communications managers who are using Wireshark for network analysis and troubleshooting. It requires a basic understanding of networking concepts, but does not require specific and detailed technical knowledge of protocols or vendor implementations.

What you will learn

  • Configure Wireshark 2 for effective network analysis and troubleshooting
  • Set up various display and capture filters
  • Understand networking layers, including IPv4 and IPv6 analysis
  • Explore performance issues in TCP/IP
  • Get to know about Wi-Fi testing and how to resolve problems related to wireless LANs
  • Get information about network phenomena, events, and errors
  • Locate faults in detecting security failures and breaches in networks
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Mar 30, 2018
Length: 626 pages
Edition : 2nd
Language : English
ISBN-13 : 9781786461674
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Length: 626 pages
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Language : English
ISBN-13 : 9781786461674
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Table of Contents

19 Chapters
Introduction to Wireshark Version 2 Chevron down icon Chevron up icon
Mastering Wireshark for Network Troubleshooting Chevron down icon Chevron up icon
Using Capture Filters Chevron down icon Chevron up icon
Using Display Filters Chevron down icon Chevron up icon
Using Basic Statistics Tools Chevron down icon Chevron up icon
Using Advanced Statistics Tools Chevron down icon Chevron up icon
Using the Expert System Chevron down icon Chevron up icon
Ethernet and LAN Switching Chevron down icon Chevron up icon
Wireless LAN Chevron down icon Chevron up icon
Network Layer Protocols and Operations Chevron down icon Chevron up icon
Transport Layer Protocol Analysis Chevron down icon Chevron up icon
FTP, HTTP/1, and HTTP/2 Chevron down icon Chevron up icon
DNS Protocol Analysis Chevron down icon Chevron up icon
Analyzing Mail Protocols Chevron down icon Chevron up icon
NetBIOS and SMB Protocol Analysis Chevron down icon Chevron up icon
Analyzing Enterprise Applications' Behavior Chevron down icon Chevron up icon
Troubleshooting SIP, Multimedia, and IP Telephony Chevron down icon Chevron up icon
Troubleshooting Bandwidth and Delay Issues Chevron down icon Chevron up icon
Security and Network Forensics Chevron down icon Chevron up icon

Customer reviews

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Full star icon Full star icon Full star icon Full star icon Half star icon 4.3
(6 Ratings)
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1 star 16.7%
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AnHonestReview Apr 30, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I wish I had this book when I started my career as an engineer! Makes learning about networks and protocols real simple!-EASY READ-Has depth and covers a broad amount of topics-Clear and Concise descriptions of protocols, a few are DNS, SIP, FTP, HTTP, SMB, SMTP-Cool tricks (Create network speed graphs, troubleshoot network and WiFi issues, analyze network based on applications and bandwidth)-Contains many screenshots and network topologies making the concepts easy to understandI hope the authors continue to release networking books as the IT industry develops.-Peter
Amazon Verified review Amazon
Bill Jun 03, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Excellent! This book is an essential resource to have in any network engineer's toolkit.A wealth of information presented in a practical, easy to read, quick to reference format. The author's break each topic down step by step: 'How to do it', 'How it works', 'There's more..'Loaded with excellent illustrations and real world examples. The 'Tips' and comments are great, invaluable information the authors shared from their real world technical experience.If you need more network analysis, troubleshooting, or better understanding of your applications and what is actually running over your network, get this book!
Amazon Verified review Amazon
Lakshminarayanan Alagarsamy May 13, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book would be an extremely important asset for any individual who study or work on computer networking and protocols. I wish I had this when I began to learn computer networking and protocols.Authors have pleasantly verbalized the vital networking protocols, with the right balance of giving basics of a given protocol, usually observed issues and troubleshooting them with Wireshark.This book is unquestionably, an absolute necessity for network operators, administrators and more essentially for students.Way to go, authors !!
Amazon Verified review Amazon
Amazon_User May 21, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The illustrations and instructions offer step-by-step recipes that makes the tasks easy to follow. Also, there are multiple filter examples and explanations that are extremely useful. This book is a "must have" for techs and engineers who need to troubleshoot and analyze networks.
Amazon Verified review Amazon
pradeep May 07, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is an awesome book. Has great details on analyzing packet flows for different applications. Wonderfully explained with screenshots which makes it easy to follow and use for practical purposes.
Amazon Verified review Amazon
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