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Telechat Review of draft-ietf-6man-sids-05
review-ietf-6man-sids-05-dnsdir-telechat-spacek-2024-01-15-00

Request Review of draft-ietf-6man-sids
Requested revision No specific revision (document currently at 06)
Type Telechat Review
Team DNS Directorate (dnsdir)
Deadline 2024-01-25
Requested 2024-01-11
Requested by Éric Vyncke
Authors Suresh Krishnan
I-D last updated 2024-01-15
Completed reviews Dnsdir Telechat review of -05 by Petr Špaček (diff)
Secdir Telechat review of -05 by Linda Dunbar (diff)
Intdir Telechat review of -05 by Juan-Carlos Zúñiga (diff)
Opsdir Last Call review of -03 by Yingzhen Qu (diff)
Secdir Last Call review of -03 by Linda Dunbar (diff)
Genart Last Call review of -03 by Reese Enghardt (diff)
Comments
As there is a very minor DNS part in the whole document, this should be an easy review.

Thanks,

-éric
Assignment Reviewer Petr Špaček
State Completed
Request Telechat review on draft-ietf-6man-sids by DNS Directorate Assigned
Posted at https://mailarchive.ietf.org/arch/msg/dnsdir/TGDG2jYIu_H9qKOGh9VCMJ6bG_k
Reviewed revision 05 (document currently at 06)
Result Ready w/issues
Completed 2024-01-15
review-ietf-6man-sids-05-dnsdir-telechat-spacek-2024-01-15-00
I have been selected as the DNS Directorate reviewer for this draft.
For more information about the DNS Directorate, please see
https://wiki.ietf.org/en/group/dnsdir

This document specifies very little in terms of DNS interaction. The only
mention I detected is this:

> 5. Allocation of a Global Unicast Prefix for SIDs
> At the present time, AAAA and PTR records for addresses assigned from this
block SHOULD NOT be installed in the global DNS [RFC8499].

Keeping my lack of understanding of SRv6 in mind, it sounds fine, or at least
safe.

From the DNS point of view, it's unclear why AAAA and PTR record types were
singled out. IPv6-like addresses can conceivably appear in other record types
(currently at least HTTPS and SVCB), and more types can be added tomorrow. I
would recommend a more generic phrasing, e.g.:

"At the present time, global DNS [RFC8499] SHOULD NOT reference addresses
assigned from this block."

Thank you for your time.
Petr Špaček