Uhm, if they are truely unique, the only difference to global addresses is that they won't be routed - right? Now, what is the difference between that and using global unicast address space that you do not announce?
Virtually nothing, except that this address space would be provider-independent, so you would not have to renumber, etc. when you change ISPs. Also, your ISP would not be obligated to route it globally and would probably filter it.
I'm actually in favor of a globally-unique/provider-independent address space that is routable, with borders of the address space administratively determined and enforced via filtering rules in routers/firewalls. 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] --------------------------------------------------------------------
