Capturing, or sniffing, network traffic is invaluable for network administrators
troubleshooting network problems, security engineers investigating network security
issues, developers debugging communication protocol implementations, or anyone
trying to learn how their networks work. Because attackers use sniffers for network
reconnaissance and to intercept transmitted credentials and data, learning about the
capabilities and limitations of packet sniffers is an important facet of understanding the
security risks.

In this lab, you will use several popular open-source applications to examine network