IPv6 Explained | The Future of Internet Addressing

The primary driver for IPv6 was the exhaustion of IPv4 addresses. IPv4 uses 32-bit addresses, allowing for about 4.3 billion unique addresses. In the early days of the Internet, this seemed like plenty. However, with the explosion of mobile devices, IoT, and always-on servers, we ran out. IPv6 uses 128-bit addresses , which allows for approximately 340 undecillion ($3.4 times 10^{38}$) addresses.…