Last Call Review of draft-ietf-dnssd-prireq-04
review-ietf-dnssd-prireq-04-iotdir-lc-chakrabarti-2020-02-13-00

Request Review of draft-ietf-dnssd-prireq
Requested rev. no specific revision (document currently at 08)
Type Last Call Review
Team Internet of Things Directorate (iotdir)
Deadline 2020-02-12
Requested 2020-01-29
Requested by Éric Vyncke
Authors Christian Huitema, Daniel Kaiser
Draft last updated 2020-02-13
Completed reviews Iotdir Last Call review of -04 by Samita Chakrabarti (diff)
Intdir Last Call review of -04 by Bob Halley (diff)
Secdir Last Call review of -04 by Robert Sparks (diff)
Genart Last Call review of -04 by Robert Sparks (diff)
Tsvart Last Call review of -04 by Tommy Pauly (diff)
Opsdir Last Call review of -04 by Tianran Zhou (diff)
Comments
Thank you very much for a last call review of this document as it may have an impact on 'consumer' IoT.

-éric
Assignment Reviewer Samita Chakrabarti 
State Completed
Review review-ietf-dnssd-prireq-04-iotdir-lc-chakrabarti-2020-02-13
Posted at https://mailarchive.ietf.org/arch/msg/iot-directorate/jp6bMyLthqvAcNyt5LE1f19Mt2g
Reviewed rev. 04 (document currently at 08)
Review result Ready with Nits
Review completed: 2020-02-13

Review
review-ietf-dnssd-prireq-04-iotdir-lc-chakrabarti-2020-02-13

I have reviewed draft-ietf-dnssd-prireq-04.  

The document is informative and clear with a few editorial nits on section 4.1 through 4.3.

I have reviewed from the IoT devices perspective  and most likely for the consumer devices that might be present in the public network and are using shared network technologies (wireless or wired). The threat model are applicable to them.
Section 3.1 describes implications for wearable and  server related privacy issue.  Perhaps a small paragraph might be added in this section or in the introduction calling out possible privacy and security threats on personal IoT devices in the public places ( that might act as a dns-sd client).

At the same time, considering limited processing capabilities, battery saving concern considerations, privacy related extra processing of messages from the dns-sd server should not be mandated for the IoT devices. Depending on the device capabilities, the feature can be configurable and the user can turn on/off  at their need; additionally some iot devices may not care about the privacy at all.

So, a few additional lines on IoT implications for the threat model and yet flexibility of implementation of the dns-sd IOT client may be mentioned in the document to clarify the IoT devices in the shared wireless/wired medium.