On Wed, 27 Nov 2002, Keith Moore wrote: > > Looking at this from your perspective: > > - I think GUPI, possibly routable, global-scope addresses might be ok, I > > have lots and lots of reservations about them, but they're not for this > > working group to try to cope with. > > - If we just stick to modifying site-locals somehow (and leave the PI > > global scopes out of the problem statement), I would definitely push for > > "nearly unique" site-locals > > I think this WG needs to define GUPIs - because that seems like the best > way to take the pressure off of SLs to be misused. however I don't think > we should try to make them globally routable, at least not now.
I don't really agree that this is what we should be doing. I think: - if we specify global-scope GUPI's they will also be used when regular global-scope addresses would be better (and we should encourage PA addresses, because they actually _work_); ie. they will cause trouble and may eventually result in prefix/address translation (NAT-like) problems. - if we instead specify site-local, near-unique addresses, folks still treat them as site-locals; they are used less than GUPI's would be, in site-local contexts only. Near-uniqueness removes the problems with ambiguity of site-locals. - I think it's better to deal with reality (provider assigned addresses) than try to escape it (provider independent addresses), even though how enticing it could be... Following my thinking, site-locals could of course be used as an aid for e.g. renumbering or intermittently connected sites, but that should be better than having delusions that using global-scope addresses there would somehow make such addresses "global" or "globally usable". I hope this clarifies my reasoning? > once we do that, I don't know that nearly unique SLs is such a big deal, > but I wouldn't object to them. .. But I agree if we _do_ specify these global-scope GUPI's, adding uniqueness to site-locals seems like a useless effort. -- Pekka Savola "Tell me of difficulties surmounted, Netcore Oy not those you stumble over and fall" Systems. Networks. Security. -- Robert Jordan: A Crown of Swords -------------------------------------------------------------------- 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] --------------------------------------------------------------------
