IPv6 addresses have a length of 128 bits, and so the total number of addresses will be raised to 128, where each IPv6 address consists of eight groups of 16 bits, separated by colons :, and expressed in hexadecimal notation.

Unlike IPv4, in which addresses consist of four-thirds of decimal digits ranging from 0 to 255, IPv6 addresses contain eight groups of four hexadecimal digits. fe80::e53f: e43b: ad07: 9cab is an example of an IPv6 address.

With the ifconfig command on a Windows machine, we can see an example configuration: