Elwyn:

Nice review.  I'm sure the document will be improved because of your efforts.  
I'd like to make two comments.

> s3.1.3: It is stated that placing the NAT64 (middlebox) in a centralized 
> location would 'reduce the diversity of  log format'.  I guess what is 
> possibly being said that is that the network should preferentially use just 
> one NAT64 box centrally placed rather than several (smaller) boxes at various 
> edge locations.  I think this needs to be explained more clearly (assuming I 
> have it right).  OTOH I would rather expect that most network owners would go 
> for a single species of NAT64 box so the diversity of log formats is really a 
> side issue.

In the beginning, yes.  Subsequent procurements cal lead to changing vendor.  
Mergers also lead to multiple venders.

> s5.2: The problem here is not specifically geo-location - and since we 
> normally don't have any mapping between topology and location this seems 
> inappropriate - but doing host identification (which is what RFC 6967 is 
> about.  Shouldn't this section just be about host identification?

If a law enforcement agency shows up with a subpoena, they really do want to 
know what door to knock down.

Thanks for listening,
  Russ

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