The Future of Private Addresses: Goodbye NAT, Hello IPv6
When the internet was first developed, the IP addressing scheme was IPv4. This addressing scheme worked really well for about 25 years. After all, it had about 4 billion host addresses. But as the internet grew, we started to see that this was just not going to be enough. Now we have an entire infrastructure that was built on IPv4. While IPv5 addresses have been exhausted, we’ve used band-aid solutions to keep the internet growing.