NAT was set up simply to slow down the depletion of public IPv4 addresses. When the commercialization of the internet started, we found ourselves running out of public assigned IP addresses. No one could have imagined that 4.2 billion addresses were going to fall short of the mark.
So, the concept of NAT was introduced, with its purpose of taking a private IPv4 address and translating it into a public IPv4 address, so that it could go onto the internet and allow users to do whatever they need to do.
If you want to get specific as to what NAT can help us do, besides go play online video games, here are some points that you should keep in mind:
- NAT enables you to connect to the internet and your end devices have only private IP addresses
- When you change to a new ISP, you do not need to change your internal addressing
- NAT helps if you are bringing networks...
