Hurricane Electric's IPv6 Tunnel Broker Forums

Advanced search  


Welcome to Hurricane Electric's forums!

Author Topic: HOWTO: IPv6 reverse DNS zone names  (Read 3973 times)


  • Newbie
  • *
  • Posts: 1
HOWTO: IPv6 reverse DNS zone names
« on: April 21, 2010, 07:23:38 PM »

The IPv6 rDNS public beta service has been announced here. IPv6 reverse zones are different from IPv4 reverse zones.

An IPv4 reverse DNS zone name for will be: Doing zones for CIDR netblocks gets much more crufty.

The IPv6 rDNS scheme is more straight forward, though longer. For this netblock:

Code: [Select]
you will also be tracing the network address backward, though we will not use any trailing 0's. Note that all middle 0's must be included. Separate every numeral with a dot to get:

Code: [Select]
And instead of "" (because all IPs are "internet addresses"), we'll designate that it's IPv6 using:

Code: [Select]
Keeping this in mind, our IPv6 rDNS zone looks like this:

Code: [Select]
You can add PTR records via the interface we provide. Note you'll need to backfill any double-colon (::) zeroes you use.

Hope this helps!