Book Image

Wireshark Revealed: Essential Skills for IT Professionals

By : James H Baxter, Yoram Orzach, Charit Mishra
Book Image

Wireshark Revealed: Essential Skills for IT Professionals

By: James H Baxter, Yoram Orzach, Charit Mishra

Overview of this book

This Learning Path starts off installing Wireshark, before gradually taking you through your first packet capture, identifying and filtering out just the packets of interest, and saving them to a new file for later analysis. You will then discover different ways to create and use capture and display filters. By halfway through the book, you'll be mastering Wireshark features, analyzing different layers of the network protocol, and looking for any anomalies.We then start Ethernet and LAN switching, through IP, and then move on to TCP/UDP with a focus on TCP performance problems. It also focuses on WLAN security. Then, we go through application behavior issues including HTTP, mail, DNS, and other common protocols. This book finishes with a look at network forensics and how to locate security problems that might harm the network.This course provides you with highly practical content explaining Metasploit from the following books: 1) Wireshark Essentials 2) Network Analysis Using Wireshark Cookbook 3) Mastering Wireshark
Table of Contents (5 chapters)

Chapter 5. Using Advanced Statistics Tools

In this chapter we will learn the following:

  • Configuring IO Graphs with filters for measuring network performance issues
  • Throughput measurements with IO Graph
  • Advanced IO Graph configurations with advanced Y-Axis parameters
  • Getting information through TCP stream graphs – the Time-Sequence (Stevens) window
  • Getting information through TCP stream graphs – the Time-Sequence (tcp-trace) window
  • Getting information through TCP stream graphs – the Throughput Graph window
  • Getting information through TCP stream graphs – the Round Trip Time window
  • Getting information through TCP stream graphs – the Window Scaling Graph window

Introduction

In Chapter 4, Using Basic Statistics Tools, we discussed the basic statistics tools such as lists of end users, conversations, capture summary, and more. In this chapter we will look at the advanced statistical tools such as the IO Graph, TCP stream graphs, and in brief, the UDP multicast...