AAAA-Records (IPv6 host address)
An AAAA-record is used to specify the IPv6 address for a host (equivalent of the A-record type for IPv4).
IPv6 is the future replacement for the current IP address system (also known as IPv4).
The current IPv4 addresses are 32 bits long ( x . x . x . x = 4 bytes), and therefore "only" support a total of 4,294,967,296 addresses - less than the global population.
With this limitation there is an increasing shortage of IPv4 addresses, and to solve the problem, the whole Internet will eventually be migrated to IPv6.
IPv6 addresses are 128 bits long and are written in hexadecimal numbers separated by colons (:) at every four digits (segment).
A series of zero value segments can be shortened as "::", and leading zeros in a segment can be skipped.
For example: 4C2F::1:2:3:4:567:89AB.
To create a new AAAA-record, right-click a zone in the left list in the DNS Records window, and select "New AAAA-record" from the pop-up menu.
This record type is defined in RFC3596.
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