Even if the adversary somehow knows there is only one machine per subnet, I think RFC 3041 still enhances privacy.
First, it hides the manufacturer of your network card. Second, it prevents the adversary from tracking usage of the network card across multiple subnets. This is important for mobile devices. Rich -------------------------------------------------------------------- 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] --------------------------------------------------------------------