[Nanog] Re: IPv6 rDNS - how will it be done?
richard.barnes at gmail.com
Tue Apr 27 19:50:20 CDT 2010
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?
On Tue, Apr 27, 2010 at 8:47 PM, Jason 'XenoPhage' Frisvold
<xenophage at godshell.com> wrote:
> On Apr 27, 2010, at 8:42 PM, Mark Andrews wrote:
>> Windows will just populate the reverse zone as needed, if you let
>> it, using dynamic update. If you have properly deployed BCP 39
>> and have anti-spoofing ingres filtering then you can just let any
>> address from the /48 add/remove PTR records. Other OS's will
>> follow suite.
> Is DDNS really considered to be the end-all answer for this? It seems we're putting an awful lot of trust in the user when doing this.. I'd rather see some sort of macro expansion in bind/tinydns/etc that would allow a range of addresses to be added.
>> Alternatively you can delegate the reverse for the /48 to servers
>> run by the customers.
> This works for commercial customers, but I'm not sure I'd want to delegate this to a residential customer.
> Jason 'XenoPhage' Frisvold
> xenophage at godshell.com
> "Any sufficiently advanced magic is indistinguishable from technology."
> - Niven's Inverse of Clarke's Third Law
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