--On Thursday, 27 March, 2008 09:00 +0200 Matti Aarnio
On Wed, Mar 26, 2008 at 10:46:37AM -0400, Tony Hansen wrote:
It would be needed until IPv6 takes over.
It will be needed even *after* IPv6 takes over. There will
be lots of queries for A records long after the majority
of hosts don't have A records.
We need to remove the implict MX from A to prevent the A
record lookups occuring as things currently stand.
There will be lots of legacy codes using legacy APIs for long
future. I do use getaddrinfo() API myself, and permit it do
all queries to get addresses. Thus it will also query for A
in addition to AAAA. It can even be ordered to ignore IPv4 or
IPv6 as sysadmin wants.
For the future the previous "query for A record" should
possibly be altered to "query for network address (IPv6 AAAA
and/or IPv4 A)" or some such generic wording.
That is approximately what it says (in 2821bis) now. It was
saying that which touched off the thread of which this one is a
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