However, while this IP address pool massive in theory, much like the IPv4, the IPv6 addressing has some notable rules and nuances that must be accounted for before implementing the newer IP standard.īefore diving into the details of how each IPv6 address space is classified and what it's used for, the inspection of IPv6 header from theoretical standpoint would assist in comparing and understanding the difference between IPv4 and IPv6.
This is especially relevant to the growing IoT industry as some of the devices require their own individual IP addresses to become reachable directly via the internet. This amount of available addresses means that any device can have at least a single public IP address. Some of these addresses are already reserved for internal or special use-cases. In theory, the total IPv4 address pool contains 2 32=4,294,967,296. While both IPv4 and IPv6 address pools are finite, IPv6 has an extremely large amount of available total addresses compared to IPv4. IP version 6 defines the exact same features and functions as IPv4, but the way IP version 6 is implemented differs from IP version 4.
Due to exhaustion of IPv4 addresses, it's becoming a common practice to configure routers, servers, standalone computers, IoT devices and many other appliances using IPv6 address pool.
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