> > But if you look at the requirements, it might be better > > to take a more fundamental approach and look into the > > separatiion of locator and identifier. > > Right. People don't care much about PI addresses if they have PI > identifiers instead.
a true separation of locator and identifier is a more fundamental change to the Internet architecture than moving from IPv4 to IPv6. as soon as you separate locator and identifier, you have the burden of providing a mapping service between the two, which is efficient, reliable, secure, and precise enough to be used for all applications. DNS (which is typically proposed as the solution) doesn't even come close. OTOH, mobileIP is a fairly close approximation to separating locator and identifier if you get past the notion that "home agent" is specific to a single host (as opposed to a set of hosts with a common prefix), and that "home" has anything to do with the normal physical location of a host. being able to get rid of the home agent when the host has a home and is at home is a useful optimization that works in some cases, but not in all or most cases. Keith -------------------------------------------------------------------- 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] --------------------------------------------------------------------
