Pasi Eronen: 

o  This is a reasonably complex draft; if you have any ideas
   how to simplify the text, please do implement them 

   One possibility would be to reorder sections 5-8 as 7,8,5,6
   (but I'm not 100% sure whether this would make it easier to 
   read or not).

o  There quite a lot of redundant text, since the same requirements 
   are stated several times (and it's difficult to see that they always
   match completely). For instance, the requirement that solicitations
   must include a Nonce option is stated a total of five (!) times
   with a MUST/REQUIRED keyword, and mentioned a couple of times
   without RFC2119 keywords.

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Jari Arkko: I have question related to Sections 7 (ND) and 8 (RD), and
the overall simplification of the document. Would it be better if the
this-message-must-have-these-options discussion was a part of Section
5 (new options)?  I believe this would reduce the overlap that
currently exists in the document. The drawback would be that you'd
have to search for, say, RA specific rules from Section instead of
having them grouped in Section 8.

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I am in the process of re-structuring the draft, to
make it simpler and to remove duplication. I have merged
Sections 7 and 8 to Section 5, the one that describes
what new options we are introducing. I'm still in the
process, but I think the end result looks much better
than the previous draft. See for yourselves and
comment:

http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html

Also, it turned out the draft had somewhat inconsistent
requirements on when to include the specific options*. The
new requirements are now in Section 5, you may want to check
that they are according to what you like:

CGA: 
  http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html#proc-sender-cga
  http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html#proc-recv-cga

Signature:
  http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html#proc-sender
  http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html#proc-recv

Nonce & Timestamp:
  http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html#anchor8
  http://www.arkko.com/publications/send/drafts/draft-send-ndopt.html#anchor9

An example inconsistency from draft 00:

   o  The Signature option is REQUIRED in all Neighbor Discovery
      messages.
   ...
   Router Solicitation messages sent with an unspecified source
   address MUST have the Nonce and Timestamp options.
   Other Router Solicitations MUST have the Nonce, Timestamp, and
   Signature options.

   (Does "all Neighbor Discovery messages" cover also RS?)

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