[arin-ppml] Encouraging IPv6 Transition (was: Clarify /29 assignment identification requirement)

[Owen DeLong]

On May 16, 2012, at 10:12 AM, William Herrin wrote:

> On 5/16/12, Owen DeLong <owen at delong.com> wrote:
>> On May 16, 2012, at 8:11 AM, Michael Richardson wrote:
>>> But, I didn't say it was risk of collision with ULA-R that was the
>>> main problem, it is lack of reverse DNS and lack of whois that is the
>>> problem.
>> 
>> Why do you need non-local RDNS and/or WHOIS for local-only addresses?
> 
> Hi Owen,
> 
> Configuring split-horizon DNS coordinated between multiple
> interconnected organizations has always been a bit of an intractable
> problem, especially when some parts are connected to some other parts
> but not all parts are connected to all other parts. You could
> sometimes get around it with an interior root but DNSSEC blows that
> out of the water. An exterior NS record back to the interior
> authoritative server could potentially help a lot.
> 

Which makes the situation you describe more ideally suited to GUA with
appropriate filtration of routes and packets.

Owen