I have reviewed this document as part of the security directorate's 
ongoing effort to review all IETF documents being processed by the 
IESG.  These comments were written primarily for the benefit of the 
security area directors.  Document editors and WG chairs should treat 
these comments just like any other last call comments.

The summary of the review is ready.  The document provides a description of deployed IPv6 translation mechanisms for IPv4 as a services.  I originally marked this document as has issues because it is incomplete as the security tradeoffs of these mechanisms are to be analyzed in separate documents.  Since the document points to a defined methodology for assessing security of these mechanisms and one mechanism has been reviewed I feel there is enough there that makes it reasonable to believe this work will complete.  I would like to understand if the additional security reviews are in progress and are being tracked by the working group.