[IPv6] Managing dynamic /64 reverse zones inside a static /48 (no delegation)
bind at nryc.fr
Tue Sep 25 11:13:43 UTC 2012
Since 2005, we are manually managing a /48 IPv6 prefix with a homemade
software, our reverse zone is x.x.x.x.0.6.6.0.220.127.116.11.ip6.arpa.
We are now deploying dynamic/private networks for our workstations and
to keep the IPv6 reverse zone up-to-date without rewriting our software,
we came with the following solution : we create a /64 zone within the
/48 and we allow dynamic updates on it (e.g.
The PTR records on the dynamic /64 are for workstations, we don't do
delegation with the /48 and so the /64 is not visible on our external
view, this keeps our "private" prefix private.
As far as our software won't create PTR on a dynamic /64 and that the
DHCP server isn't allowed to update the /48, is this setup can be
It's working exactly as expected and I'm about to create dozens of /64
IPv6 reverse zones, so I'm checking here in case I forgot something.
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