I am an assigned INT directorate reviewer for draft-ietf-opsawg-mud-iot-dns-considerations-13. These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see https://datatracker.ietf.org/group/intdir/about/ <https://datatracker.ietf.org/group/intdir/about/>.


Based on my review, if I was on the IESG I would ballot this document as NO OBJECTION.


   
This document details concerns about how Internet of Things (IoT) devices use IP addresses and DNS names and provides important recommendations for IoT manufacturors implementing MUD. I found the document easy to read and useful for the community. 

Nits:

use of ! : please review if all "!" in the document are really intended.

Abstract

   Alos, this document << typo


1.  Introduction

   Conceretely, << typo
   
   
4.1.  Use of IP Address Literals in-protocol

...
   The first is that it eliminates problems with firmware updates that
   might be caused by lack of DNS, or incompatibilities with DNS.  
   
   >> written as this it looks positive. In fact I guess the intention is something like "mask till it's too late" correct?
   
   

6.4.  Do Not Use Tailored Responses to answer DNS Names


   When the MUD controller makes it's << its?
   
   

7.  Privacy Considerations


   The more complex case of section Section 4.1 << avoid dup
   
   
   
  

That's it, only nits. Many thanks to the authors for their work here.