IPv6 is an alphanumeric address that consists of eight fields separated by a colon. The format of the IPv6 address is: x:x:x:x:x:x:x:x. IPv6 addresses are 128 bits rather than the 32 bits of IPv4. To make these addresses easier to manage in various scenarios, the standard presentation of an IPv6 uses hexadecimal notation, where each symbol represents 4 bits. The hexadecimal numbering system uses sixteen symbols (0 to 9 and A to F).