Practice safe design: use a concept.
— Petrula Vrontikis
It’s been said that design is where science and art break even. In this chapter, we’ll focus primarily on the science part of IPv6 address planning and be as thorough as we can be with the design concepts and principles that you’ll need to be familiar with to tackle your plan. As we proceed, however, we’ll be sure to consider the art of address plan design as well, an art based on accumulated operational knowledge and practical experience and the best-practices that have evolved from it.
We’ve already mentioned earlier that IPv6 address planning should not be based on (e.g., sufficient host addressing).
But given that, what should it be based on (and why)? Let’s examine the fundamental IPv6 address planning principles in brief before looking at each more closely. They are: