On Fri, 13 Sep 2013, David Conrad wrote:

Would ip6.arpa PTR service be helpful? (no opinion, just curious)

The v4 multicast PTRs didn't seem to be used all that much.


I would agree with this, probably not used much. Seems like a trivial thing to get delegated and set up though (unless I'm missing something).

If it is trivial (i.e. for IANA to host it) - I was just wondering why it was done for ipv4 and not ipv6.

The one example that came to mind would be a sniffer doing DNS lookups. It can be helpful sometimes to have the answer come up directly in the capture instead of back and forth to IANA's website.

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