[125974] in North American Network Operators' Group
Re: IPv6 rDNS - how will it be done?
daemon@ATHENA.MIT.EDU (Mark Andrews)
Tue Apr 27 20:42:57 2010
To: Felipe Zanchet Grazziotin <felipe@starbyte.net>
From: Mark Andrews <marka@isc.org>
In-reply-to: Your message of "Tue, 27 Apr 2010 21:21:54 -0300."
<v2s621b657f1004271721icf7c9237kcfb877b7785d1e73@mail.gmail.com>
Date: Wed, 28 Apr 2010 10:42:09 +1000
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
In message <v2s621b657f1004271721icf7c9237kcfb877b7785d1e73@mail.gmail.com>, Felipe Zanchet Grazziotin writes:
> Hi list,
>
> this is my first post, so be nice. :)
>
> Wondering about IPv6 deployments to end-users, imagine we deploy a full /48
> address to each client.
> How is the reverse DNS for each possible IPv6 address going to be?
>
> Nowadays I'm used to do IPv4 reverse using old Class C, which has (up to)
> 256 entries. Are we really going to make reverse DNS entries for each of
> those 2^80 addresses? Or going to deploy rDNS only at the PtP links and
> relevant servers?
>
> Kind regards,
> Felipe
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.
Alternatively you can delegate the reverse for the /48 to servers
run by the customers.
Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka@isc.org
