ipv6 only DNS?
jabley at hopcount.ca
Sun Jun 21 16:06:51 UTC 2009
On 21-Jun-2009, at 10:36, Rui Ribeiro wrote:
> An IPv6 only device can "hit" your server if all the DNS hierachy
> resolves through IPv6. It works the same way as in IPv4.
"Resolves through IPv6" implies a mixture of IPv6 transport and RRSet
availability. To add some more details, you need:
- AAAA records in your hints file, so you can complete a useful
- AAAA glue in the zones being followed to answer your questions,
from the root down
- all NS sets above every zone cut to include at least one reachable
nameserver that can be queried using IPv6 transport
- the resources you're ultimately looking for to have AAAA records
(assuming your goal is to find an address)
Some time ago I checked the ORG and INFO registries and discovered
that the number of host objects there with IPv6 address attributes was
very small. I presumed at the time that it was either hard to find a
registrar that would support IPv6 addresses for hosts, or that people
were just not paying much attention to v6-only resolution.
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