> > > I agree 100% with Micehls' point - assigning unique IDs to sites for use in > > > site-local addresses moves the site-local addresses into a globally > > > routable address space, with the additional feature that those addresses > > > are provider independent. The result would be an address space that is > > > site-local by (potentially unenforceable) executive fiat rather than by > > > technical design. > > > > this sounds like a feature to me, because it would allow hosts using > > such addresses to have their traffic routed between sites without NAT. > > Not in the real world; these addresses wouldn't be routable because > they won't aggregate.
they will be routable between private networks using bilateral agreements. one of the common use cases for NAT in v4 is to map between two or more networks that use private (thus overlapping) address space. if we want to avoid NATs in v6 we need to ensure that v6 addresses never overlap; that sites can get unique v6 addresses whether or not they're connected to the global internet. 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] --------------------------------------------------------------------
