Hi,

I've read the private-metatypes draft and support the idea.

My only comment is that, to increase backwards compatibility, the range for
private use Q and Meta Types should be from the existing range for such
RRs. So the private use range could be, say 129-144 which also minimizes
numbering discontinuities. (And the existing 65280-65534 private use range
should have its description narrowed to specify that it is for data RRs.

This could be merged with draft-eastlake-rfc6895bis-iana-01.

Thanks,
Donald
===============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 2386 Panoramic Circle, Apopka, FL 32703 USA
 [email protected]


On Fri, Nov 7, 2025 at 3:07 PM Shumon Huque <[email protected]> wrote:

> On Fri, Nov 7, 2025 at 12:12 PM Ray Bellis <[email protected]> wrote:
>
>> On 20/10/2025 15:36, Roy Arends wrote:
>> >
>> > First presented at the DD WG, I've now re-submitted the latest
>> > version of Delegation Extensions (including minor updates) to the
>> > datatracker with a new title to reflect "DNSOP". In short: draft-
>> > arends-dnsop-delext-00.txt replaces draft-ppr-dd-auth-delegation-
>> > types
>> >
>>
>> I support the concept of a range of RR values reserved for the
>> parent-side of the zone cut, such that DNS implementations can process
>> future ones automatically instead of having to have special-case code
>> for each one.
>>
>
> I support this too.
>
> I note also Shumon's draft wanting to carve out a sub-range of the
>> private RR values for private / testing meta-RRs.
>>
>
> For those who haven't seen it, that draft is:
>
>
> https://datatracker.ietf.org/doc/html/draft-huque-dnsop-private-metatypes-01
>
> On whether these two features merit documents of their own I have no
>> particular opinion, but either way the IANA registry for which the
>> reserved ranges are enumerated in RFC6895 will need updating, ideally
>> (IMHO) in an RFC6895(bis).
>>
>
> One of the 'Open Questions' in our draft asked exactly that question.
> Ideally,
> RFC6895 would be the best place to make any updates to the RR type space
> classification. But I'll note that both these drafts go a bit beyond IANA
> considerations, e.g. Roy's draft talks about interaction with the proposed
> DE
> EDNS header flag. And mine talks about the correct response behavior for
> unknown Q and Meta-Types (I was contemplating renaming our doc to 'On Q
> and Meta-Types in the DNS" to acknowledge the expanded scope.
>
> Shumon.
>
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