What Is NAT? Network Address Translation Explained
Network address translation is why your whole house shares one public IP. Here is how NAT works, its types, why carrier-grade NAT breaks port forwarding, and whether IPv6 finally ends it.
rfc-1918
Public vs. Private IP Addresses: What’s the Difference?
Understand public vs private IP addresses, how NAT bridges them, and the often-missed fourth range (RFC 6598’s 100.64.0.0/10) that ISPs now use for carrier-grade NAT on mobile and satellite networks.