Understanding Internet Protocol (IP) Architecture
An Internet Protocol (IP) address is a foundational element of computer networking. It provides logical addressing for host interfaces, enabling packets of data to be routed across heterogeneous local networks and global internet exchanges.
Public vs. Private IP Addresses
A Public IP is globally unique and routable across the entire internet, assigned by your Internet Service Provider (ISP). In contrast, Private IP addresses exist only within local area networks (LANs) and are translated via Network Address Translation (NAT).
IPv4 Exhaustion vs. IPv6 Adoption
IPv4 uses a 32-bit address space, supporting approximately 4.29 billion distinct addresses. Because available IPv4 pools are largely exhausted, IPv6 was introduced with 128-bit addresses, eliminating the need for NAT overhead and improving routing efficiency.