Reverse DNS for IPv6 client networks

Joel Jaeggli joelja at
Tue Sep 14 13:00:52 UTC 2010

On 9/14/10 5:38 AM, Jeroen Massar wrote:
> Instead of handpicking names or letting people insert data into your DNS
> servers, some people are deploying PowerDNS with custom backends for
> this that either convert the IPv6 address into a 128bit hex number,
> optionally stripping the first 64 bits and replacing that with 'autogen'
> or 'wlan-' or similar. Something else that I have seen is that the
> backend randomly picks a name from a dictionary and then assigns that
> 'statically' to that address.

I wildcarded the subnets that we use for dynamic assignments. statically
assigned hosts get statically assigned reverse entries.
> I personally only put hosts in reverse DNS that re-appear more than once.
>  Jeroen

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