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Last Call Review of draft-ietf-conex-destopt-09

Request Review of draft-ietf-conex-destopt
Requested revision No specific revision (document currently at 12)
Type Last Call Review
Team Security Area Directorate (secdir)
Deadline 2015-08-31
Requested 2015-08-20
Authors Suresh Krishnan , Mirja K├╝hlewind , Bob Briscoe , Carlos Ucendo
I-D last updated 2015-08-27
Completed reviews Genart Last Call review of -09 by Robert Sparks (diff)
Genart Last Call review of -09 by Robert Sparks (diff)
Secdir Last Call review of -09 by Robert Sparks (diff)
Opsdir Last Call review of -09 by Scott O. Bradner (diff)
Assignment Reviewer Robert Sparks
State Completed
Review review-ietf-conex-destopt-09-secdir-lc-sparks-2015-08-27
Reviewed revision 09 (document currently at 12)
Result Has Issues
Completed 2015-08-27
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.

Summary: On the right track with open issues

I was also the Gen-Art reviewer for this draft
My Gen-Art Review can be found here:

Please skim that review if you have not already seen it for context.

This document defines a new IPv6 Destination Option. It relies on AH to 

detect any tampering (particularly removal) with the option.

The document is currently formulated to simply define the option, and 

leaves it to other documents to describe when to use the option and how 

audit mechanisms in protocols that use the option can protect themselves 

from likely attacks. If the document clarifies that the option must not 

be used except by a protocol that has defined these things, I believe 

sufficient effort has been put into the security considerations. If the 

group intends for this option to be usable without such an additional 

protocol definition, this document needs to contain more discussion.