We’ll pick up right where we left off in the last chapter and con-
tinue to explore the world of IP addressing. I’ll open this chapter
by telling you how to subnet an IP network—an indispensably
crucial skill that’s central to mastering networking in general! Forewarned is forearmed, so
prepare yourself because being able to subnet quickly and accurately is pretty challenging and
you’ll need time to practice what you’ve learned to really nail it. So be patient and don’t give
up on this key aspect of networking until your skills are seriously sharp. I’m not kidding—
this chapter is so important you should really just graft it into your brain!