query
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... IPv6
addresses[3] since applications assume that address queries return
32-bit IPv4 addresses ...
... Existing queries that perform additional section processing to
locate IPv4 addresses are redefined to perform additional
...
... MODIFICATIONS TO EXISTING QUERY TYPES ...
...
All existing query types that perform type A additional section
processing, i.e. name server (NS ...
... mailbox
(MB) query types, must be redefined to perform both type A and type
AAAA additional section processing. These new definitions mean that a
...
... IPv6 addresses available locally to the additional section of a
response when processing any one of the above queries.
...