[dns-operations] IPv6 & IPv4 addresses
Simon.Munton at communitydns.net
Thu Mar 17 14:13:01 UTC 2011
I see from another thread some resolvers are using ANY to do a single
query to get both A & AAAA addresses. This may be fine generally, but
could cause a lot of traffic for :-
exmaple.com in ns example.com
which seems to be increasingly popular.
So my question is - is there a case for always returning *both* A and
AAAA records in response to an A (or AAAA) query - can anybody see any
harm in doing this? (other than a slight increase in response packet size).
Or is there a case for creating a new, virtual RR, called (say) ADDR so
a query for ADDR would mean "give me both A & AAAA" ?
I can see this becoming more & more of an issue as v6 rolls out.
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