There are some military applications where devices have no business talking to the outside world. Control devices or sensors on a water distribution system or a power grid are another good example. These devices have no business whatsoever accessing the public internet, and it might be a requirement that the devices themselves have support for public addresses removed.
Private addressing does not provide any time of security that cannot be obtained (and more easily, in most cases) by appropriate configuration of firewalls or filters on routers.
Margaret -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
