9 Network Address Translation
This chapter covers
- Private IPv4 addresses
- Using NAT to translate between private and public IPv4 addresses
- The different types of NAT
- Configuring NAT on Cisco routers
IPv4 address exhaustion is a major problem and has been for a long time. In chapters 20 and 21 of volume 1, we covered the long-term solution: IPv6. However, IPv4 is still dominant to this day thanks to a few solutions that have been very effective in extending IPv4’s lifespan. We covered one of these solutions in chapter 11 of volume 1 on subnetting with Classless Inter-Domain Routing (CIDR), which allows more flexibility than the rigid classful addressing system that came before it.
In this chapter, we will cover two more important solutions that, ...
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