Book Image

Network Analysis using Wireshark 2 Cookbook - Second Edition

By : Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Book Image

Network Analysis using Wireshark 2 Cookbook - Second Edition

By: Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss

Overview of this book

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.
Table of Contents (20 chapters)

IPv6 auto configuration

One of the primary benefits associated with IPv6 is its ability to autoconfigure the interface address. This ability allows IPv6 enabled devices to act in plug-and-play mode.

Getting ready

When the end host using IPv6 auto configuration is not working properly, the first thing to do is to ensure that the link-local address is auto configured properly. This can be verified by checking the interface address configuration. In Unix/Linux devices, ifconfig -a will list the IPv6 addresses configured on the interface. If you don't see anything, the IPv6 stack on the host might have some issues. If you see an IPv6 link-local address, the next step is to capture the packet using Wireshark and see whether...