Pekka, You keep ignoring one of the requirements: that we be able to find out who is leaking information when "local" addresses leak through applications, or through management protocols. Random numbers don't give you that. Also, you should never underestimate how bad people and computers are at picking random numbers. And you should also never underestimate the malicious users who will deliberately pick the "wrong" value and cause trouble.
There are several ways to provide global uniqueness: registration is one; reuse of an already registered number is another. Among the candidates that we could consider: * IPv4 addresses, for those who already have them: 32 bits. * Telephone numbers: we can encode 11 digits in 37 bits. * Various unique enterprise numbers. Such numbers can easily be configured offline. -- Christian Huitema -------------------------------------------------------------------- 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] --------------------------------------------------------------------
