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

Questions

Now, it's time to check your knowledge. Select the best response, and then check your answers with those in the Assessments appendix:

  1. ICMP communicates issues that prevent data delivery. Common issues include the network or port being _____.
    1. Stateful
    2. Inspected
    3. Unreachable
    4. ARP enabled
  2. Some of the ICMP types are no longer used since, over time, they have been found to be ineffective and are considered _____.
    1. Quenched
    2. Unreachable
    3. Digital
    4. Deprecated
  3. In ICMPv6, a _____ message can be sent when there is an issue determining a field value in the IPv6 header or the IPv6 extension header.
    1. Time exceeded
    2. Parameter problems
    3. Packet too big
    4. Source quench
  4. When setting firewall rules, the only essential ICMP traffic is _____. The others are optional.
    1. Type 3 for ICMP and Type 1 for ICMPv.
    2. Type 123 for ICMP and Type 17 for ICMPv.
    3. Type 1 for ICMP and Type 3 for ICMPv.
    4. Type 9 for ICMP and Type 104 for ICMPv.
  5. ICMP can be used in a malicious way. One way is a ______ scan that...