How do you do rDNS for IPv6 ?

Mon Dec 6 11:52:14 UTC 2010

On Dec 5, 2010, at 5:28 PM, Franck Martin wrote:

> 
> 
> ----- Original Message -----
>> From: "Owen DeLong" <owen at delong.com>
>> To: "John Levine" <johnl at iecc.com>
>> Cc: nanog at nanog.org
>> Sent: Sunday, 5 December, 2010 2:54:43 PM
>> Subject: Re: How do you do rDNS for IPv6 ?
>> On Dec 5, 2010, at 2:13 PM, John Levine wrote:
>> 
> 
>>> When hosts self-configure their low 64 bits, do you install a
>>> suitable
>>> PTR and AAAA into your DNS? If so, how? Do you use DHCPv6 and have
>>> it
>>> install the DNS? Do you do something else?
>>> 
>> If you care, you probably need to use DHCPv6 for this and it should be
>> able
>> to build both the AAAA and PTR records.
>> 
> Unless you use, privacy extensions, the advantage of IPv6 over IPv4 is that the IP address is built based on your network and the mac address of the interface, so it is not a random number changed at every connection....
> 
> I guess when you provision the machine, you can install the AAAA and PTR record and then also put the mac address in your access lists...

That answer presumes an enterprise environment. The question was from the perspective of a residential ISP.

I don't think most residential ISPs would regard provisioning individual customer machines as a scalable solution.

Owen