IPv6 is the new version of the internet protocol which identifies devices on a network and route data across the internet.

We need IPv6 because its address size is 128-bit compared to IPv4 which size is 32-bit, address count IPv6 is 340 undecillions while IPv4 is 4.3 billion. IPv6 no NAT needed and security is built-in whereas in IPv4 security is optional.

IPv4 has lasted this long due to recycling, sharing and smart allocation of addresses (DHCP): devices do not keep IPs forever, IPs are reused when devices disconnect. Which means the same address can serve many users over time. Furthermore, private IP…

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