In this chapter, we have completed an introduction to TCP/IP and how machines communicate in a network. We learned about the main protocols of the network stack and the different types of address for communicating in a network. We started with Python libraries for network programming and looked at socket and the urlllib and requests modules, and provided an example of how we can interact and obtain information from RFC documents. We also acquired some basic knowledge so that we are able to perform a network traffic analysis with Wireshark.

Wireshark is provided with innumerable functionalities, thanks to which we will be able to identify and analyze network traffic and identify communications in our network.

In the next chapter, you will learn how to use Python as an HTTP client so that you can make requests over the REST API and retrieve web resources with the urllib and requests modules.