IPv6 support introduces several changes to how host name and IP
address resolution is performed. These changes affect several areas
of resolver processing, including:
- New resolver APIs are introduced for IPv6-enabled applications.
For more information, see Name and address resolution functions.
- New DNS IPv6 AAAA records are defined in place of DNS
IPv4 A records to represent hosts with IPv6 addresses, resulting in
new network flows between resolvers and name servers.
- A new algorithm is defined to describe how a resolver needs to
sort a list of IP addresses returned for a multihomed host. For more
information, see Default destination address selection.
- New statements in the resolver configuration files are defined,
and new search orders are implemented for local host tables processing.