Dear David,

On Wed, Jan 11, 2023 at 01:08:18PM -0600, David Farmer via address-policy-wg 
wrote:
> Does the NCC's reverse DNS delegation tooling allow for a DNS
> delegation of a prefix longer than a /24?

Yes.

See 
https://apps.db.ripe.net/docs/entire-documentation-(HTML)#description-of-the-domain-object

        "For IPv4 addresses, a dash is allowed in the fourth octet of
        the reverse address. This allows for reverse DNS delegations for
        address space that doesn't fall on octet boundaries as specified
        in RFC 2317. A dash is not allowed in any other octet."

Example:

To set up Reverse DNS for this IPv4 address range: 10.2.1.6 - 10.2.1.25
using the dash notation, the zone name becomes "6-25.1.2.10.in-addr.arpa"

Kind regards,

Job

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