Hi David,

   5.  The mapping system must allow request access (for subscribers) to
       be open and public.  However, it is optional to provide
       confidentiality and authentication of the requesters and the
       information they are requesting.

> (1) I don't see any confidentiality requirements.   

The optional requirement for confidentiality was added for potential use
cases where only some users are allowed to access information about
others. Motivation: snooping mapping system informatation may be a way
to track the behavior of other users.



Prof. Dr. habil. Michael Menth
University of Tuebingen
Faculty of Science
Department of Computer Science
Chair of Communication Networks
Sand 13, 72076 Tuebingen, Germany
phone: (+49)-7071/29-70505
fax: (+49)-7071/29-5220

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