Book Image

Mastering Wireshark

Book Image

Mastering Wireshark

Overview of this book

Wireshark is a popular and powerful tool used to analyze the amount of bits and bytes that are flowing through a network. Wireshark deals with the second to seventh layer of network protocols, and the analysis made is presented in a human readable form. Mastering Wireshark will help you raise your knowledge to an expert level. At the start of the book, you will be taught how to install Wireshark, and will be introduced to its interface so you understand all its functionalities. Moving forward, you will discover different ways to create and use capture and display filters. Halfway through the book, you’ll be mastering the features of Wireshark, analyzing different layers of the network protocol, looking for any anomalies. As you reach to the end of the book, you will be taught how to use Wireshark for network security analysis and configure it for troubleshooting purposes.
Table of Contents (16 chapters)
Mastering Wireshark
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Summary


What we discussed here is not going to facilitate you with every scenario that can be seen in wireless communication, but definitely, it will give you a jump start.

The IEEE 802.11 standard works over radio frequencies for communication purpose. The protocol that works behind WLANS is CSMA/CD, which facilitates a collision-free environment that is required for a wireless infrastructure. Under 802.11, there are multiple standards that have been developed, and this provides a robust solution for different infrastructure-based requirements.

Sometimes, you need to look at the RF energy level too, which can really play a big role in performance upgrade. Due to various devices that work over the same spectrum of 2.4 Ghz, it is possible that your WLAN signals may get distorted. What you need in such cases is a spectrum analyzer, which lets you analyze and monitor the RF energy flowing around you. To do so, you need special hardware that can be purchased from an online tech store, and you...