[Nanog] Re: IPv6 rDNS - how will it be done?

John Levine johnl at iecc.com
Tue Apr 27 20:46:57 CDT 2010


>Hmm. A macro expansion for a /48 would mean
>1,208,925,819,614,629,174,706,176 leaves. An interesting stress test
>for name servers... :-).

My inclination would be to use a wildcard that returns something like
not-in-service.some-network.net, and let the clients add records for
the addresses they use.

For spoof resistance, how about doing a forward lookup on the
purported name and only installing it if it gets a matching AAAA
record?

R's,
John




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