it's certainly the case that neither IPv4 nor IPv6 is perfectly untracable.
frankly, it's difficult to see how the network can be made untracable given that - we're doing routing using network addresses that are organized (at least loosely) according to network topology, and which need to be relatively stable - and we haven't found a way to route opaque addresses (i.e. addresses that aren't organized according to network topology that scales.) - many useful applications need to be able to accept unsolicited traffic - there's no way to locate services on a large scale without stable names (at some level) being associated with those services - at some level the user's network terminal is necessarily going to interact/authenticate with a network element that is not under that user's control, and which therefore may not be trustworthy. but this isn't really an IPv4 vs. IPv6 issue. IPv6 provides more ability to protect users' privacy than IPv4. Keth -------------------------------------------------------------------- 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] --------------------------------------------------------------------
