Question about dynamic IPv6-PTR-Generation

Woodworth, John R John.Woodworth at
Sat Aug 27 08:02:36 UTC 2016

> >A very popular option is to only create or delegate IPv6 PTR entries
> >for hosts with static address assignments, and to return NXDOMAIN for
> >address space used for dynamic address assignments.
> I talk to a lot of large providers at M3AAWG and that's the consensus
> about what to do.  If it doesn't have a static address, it's not a
> server and it doesn't need rDNS.

Simply pretending a shark doesn't exist offers very little in shark
protection.  While I understand this school of thought I don't believe
it will solve the problem or remove the need.


> R's,
> John


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