5. "what about SIIT object saying whether an IPv4 address?
   describe SIIT mapped or natively mapped on a dual-stack system?"

   Based on this statement in rfc2765, section 1:
      "Note that SIIT is not likely to be useful later during transition
      when most of the Internet is IPv6 and there are only small islands of
      IPv4 nodes,..."
   I suggest any such objects be placed in a new SIIT MIB module and
   not defined here.   

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Bill:

Ok.  No SIIT objects here.