Network Analysis using Wireshark Cookbook


Network Analysis using Wireshark Cookbook
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Overview
Table of Contents
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  • Place Wireshark in the network and configure it for effective network analysis
  • Use Wireshark's powerful statistical tools and expert system for pinpointing network problems
  • Use Wireshark for troubleshooting network performance, applications, and security problems in the network

Book Details

Language : English
Paperback : 452 pages [ 235mm x 191mm ]
Release Date : December 2013
ISBN : 1849517649
ISBN 13 : 9781849517645
Author(s) : Yoram Orzach
Topics and Technologies : All Books, Networking and Servers, Cookbooks, Networking & Telephony, Open Source


Table of Contents

Preface
Chapter 1: Introducing Wireshark
Chapter 2: Using Capture Filters
Chapter 3: Using Display Filters
Chapter 4: Using Basic Statistics Tools
Chapter 5: Using Advanced Statistics Tools
Chapter 6: Using the Expert Infos Window
Chapter 7: Ethernet, LAN Switching, and Wireless LAN
Chapter 8: ARP and IP Analysis
Chapter 9: UDP/TCP Analysis
Chapter 10: HTTP and DNS
Chapter 11: Analyzing Enterprise Applications' Behavior
Chapter 12: SIP, Multimedia, and IP Telephony
Chapter 13: Troubleshooting Bandwidth and Delay Problems
Chapter 14: Understanding Network Security
Appendix: Links, Tools, and Reading
Index
  • Chapter 1: Introducing Wireshark
    • Introduction
    • Locating Wireshark
    • Starting the capture of data
    • Configuring the start window
    • Using time values and summaries
    • Configuring coloring rules and navigation techniques
    • Saving, printing, and exporting data
    • Configuring the user interface in the Preferences menu
    • Configuring protocol preferences
  • Chapter 2: Using Capture Filters
    • Introduction
    • Configuring capture filters
    • Configuring Ethernet filters
    • Configuring host and network filters
    • Configuring TCP/UDP and port filters
    • Configuring compound filters
    • Configuring byte offset and payload matching filters
  • Chapter 3: Using Display Filters
    • Introduction
    • Configuring display filters
    • Configuring Ethernet, ARP, host, and network filters
    • Configuring TCP/UDP filters
    • Configuring specific protocol filters
    • Configuring substring operator filters
    • Configuring macros
  • Chapter 4: Using Basic Statistics Tools
    • Introduction
    • Using the Summary tool from the Statistics menu
    • Using the Protocol Hierarchy tool from the Statistics menu
    • Using the Conversations tool from the Statistics menu
    • Using the Endpoints tool from the Statistics menu
    • Using the HTTP tool from the Statistics menu
    • Configuring Flow Graph for viewing TCP flows
    • Creating IP-based statistics
  • Chapter 5: Using Advanced Statistics Tools
    • Introduction
    • 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
  • Chapter 6: Using the Expert Infos Window
    • Introduction
    • The Expert Infos window and how to use it for network troubleshooting
    • Error events and understanding them
    • Warnings events and understanding them
    • Notes events and understanding them
  • Chapter 8: ARP and IP Analysis
    • Introduction
    • Analyzing connectivity problems with ARP
    • Using IP traffic analysis tools
    • Using GeoIP to look up physical locations of the IP address
    • Finding fragmentation problems
    • Analyzing routing problems
    • Finding duplicate IPs
    • Analyzing DHCP problems
  • Chapter 9: UDP/TCP Analysis
    • Introduction
    • Configuring TCP and UDP preferences for troubleshooting
    • TCP connection problems
    • TCP retransmission – where do they come from and why
    • Duplicate ACKs and fast retransmissions
    • TCP out-of-order packet events
    • TCP Zero Window, Window Full, Window Change, and other Window indicators
    • TCP resets and why they happen
  • Chapter 10: HTTP and DNS
    • Introduction
    • Filtering DNS traffic
    • Analyzing regular DNS operations
    • Analyzing DNS problems
    • Filtering HTTP traffic
    • Configuring HTTP preferences
    • Analyzing HTTP problems
    • Exporting HTTP objects
    • HTTP flow analysis and the Follow TCP Stream window
    • Analyzing HTTPS traffic – SSL/TLS basics
  • Chapter 11: Analyzing Enterprise Applications' Behavior
    • Introduction
    • Finding out what is running over your network
    • Analyzing FTP problems
    • Analyzing e-mail traffic and troubleshooting e-mail problems – POP, IMAP, and SMTP
    • Analyzing MS-TS and Citrix communications problems
    • Analyzing problems in the NetBIOS protocols
    • Analyzing database traffic and common problems
  • Chapter 12: SIP, Multimedia, and IP Telephony
    • Introduction
    • Using Wireshark's features for telephony and multimedia analysis
    • Analyzing SIP connectivity
    • Analyzing RTP/RTCP connectivity
    • Troubleshooting scenarios for video and surveillance applications
    • Troubleshooting scenarios for IPTV applications
    • Troubleshooting scenarios for video conferencing applications
    • Troubleshooting RTSP
  • Chapter 13: Troubleshooting Bandwidth and Delay Problems
    • Introduction
    • Measuring total bandwidth on a communication link
    • Measuring bandwidth and throughput per user and per application over a network connection
    • Monitoring jitter and delay using Wireshark
    • Discovering delay/jitter-related application problems
  • Chapter 14: Understanding Network Security
    • Introduction
    • Discovering unusual traffic patterns
    • Discovering MAC- and ARP-based attacks
    • Discovering ICMP and TCP SYN/Port scans
    • Discovering DoS and DDoS attacks
    • Locating smart TCP attacks
    • Discovering brute-force and application attacks

Yoram Orzach

Yoram Orzach gained his Bachelor's degree in Science from the Technion in Haifa, Israel, and worked in Bezeq as a systems engineer in the fields of transmission and access networks from 1991 to 1995. In 1995, he joined Netplus from the Leadcom group as technical manager, and since 1999 he has worked as the CTO of NDI Communications (www.ndi-com.com), involved in the design, implementation, and troubleshooting of data communication networks worldwide. Yoram's experience is both with corporate networks, service providers, and Internet service provider's networks, and among his customers are companies such as Comverse, Motorola, Intel, Ceragon networks, Marvel, HP, and others. Yoram's experience is in design, implementation, and troubleshooting, along with training for R&D, engineering, and IT groups.

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Sample chapters

You can view our sample chapters and prefaces of this title on PacktLib or download sample chapters in PDF format.

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What you will learn from this book

  • Configure Wireshark for effective network troubleshooting
  • Set up various display and capture filters
  • Use basic statistical tools that provide you with "who is talking" tables, conversations, and HTTP statistics
  • Master both the standard and advanced features of IO graphs
  • Use the expert system to pinpoint various types of events that might influence the behavior of your network
  • Learn about Wi-Fi testing and how to resolve problems related to wireless LANs
  • Explore performance issues in TCP/IP
  • Explore failures due to delays and jitters in the network
  • Find and resolve problems due to bandwidth, throughput, and packet loss
  • Identify and locate faults in communication applications including HTTP, FTP, mail, and various other applications – Microsoft OS problems, databases, voice, and video over IP
  • Identify and locate faults in detecting security failures and security breaches in the network

In Detail

Is your network slow? Are your users complaining? Disconnections? IP Telephony problems? Video freezes? Network analysis is the process of isolating these problems and fixing them, and Wireshark has long been the most popular network analyzer for achieving this goal. Based on hundreds of solved cases, Network Analysis using Wireshark Cookbook provides you with practical recipes for effective Wireshark network analysis to analyze and troubleshoot your network.

"Network analysis using Wireshark Cookbook" highlights the operations of Wireshark as a network analyzer tool. This book provides you with a set of practical recipes to help you solve any problems in your network using a step-by-step approach.

"Network analysis using Wireshark Cookbook" starts by discussing the capabilities of Wireshark, such as the statistical tools and the expert system, capture and display filters, and how to use them. The book then guides you through the details of the main networking protocols, that is, Ethernet, LAN switching, and TCP/IP, and then discusses the details of application protocols and their behavior over the network. Among the application protocols that are discussed in the book are standard Internet protocols like HTTP, mail protocols, FTP, and DNS, along with the behavior of databases, terminal server clients, Citrix, and other applications that are common in the IT environment.

In a bottom-up troubleshooting approach, the book goes up through the layers of the OSI reference model explaining how to resolve networking problems. The book starts from Ethernet and LAN switching, through IP, and then 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. The book finishes with a look at network forensics and how to search and find security problems that might harm the network.

Approach

"Network analysis using Wireshark Cookbook" contains more than 100 practical recipes for analyzing your network and troubleshooting problems in the network. This book provides you with simple and practical recipes on how to solve networking problems with a step-by-step approach.

Who this book is for

This book is aimed at research and development professionals, engineering and technical support, and IT and communications managers who are using Wireshark for network analysis and troubleshooting. This book requires a basic understanding of networking concepts, but does not require specific and detailed technical knowledge of protocols or vendor implementations.

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