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

Wed Apr 28 00:58:32 UTC 2010

On Apr 27, 2010, at 8:50 PM, Richard Barnes wrote:
> Naïve question: If you used macro expansion, wouldn't you end up
> providing responses for a lot of addresses that aren't in use?  Maybe
> that's not a problem?

Presumably the op would only use macros where needed, ie dynamically assigned addresses.  So, for a pool of addresses assigned for DSL/Cable/FIOS subscribers, that pool would have forward/reverse set up.

Note: I am definitely not up on my IPv6 knowledge, so there may be a Really Good Reason(tm) that one should not do this..  However, I was under the impression that having both forward and reverse for dynamic IPs was a best practice..

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Jason 'XenoPhage' Frisvold
xenophage at godshell.com
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"Any sufficiently advanced magic is indistinguishable from technology."
- Niven's Inverse of Clarke's Third Law