This chapter expanded on what you have learned about IPv4 earlier in this book. We began with an overview of IPv4 addresses before discussing the various attributes of the five classful IPv4 classes, including public and private address ranges and their subnet masks. From there, we delved into subnetting. Following on from this, we introduced the concept of classless inter-domain routing, which is something you will likely come across in all but the smallest of environments. We finished this chapter by discussing the assignment of IP addresses to hosts.
From a practical perspective, you have learned how to identify the class of an IP address and its default subnet based on the IP address itself when using classful addressing. You have also learned how to convert decimal values into binary and vice versa, and how to use this in conjunction with the IP address and subnet...