> According to the draft minutes, someone mentioned we can use arbitrary > prefixes for those purposes. That's true, but we cannot assure the > uniqueness of the arbitrary-chosen prefixes, so I don't see any > essential advantage over the existing fec0::/10 (with eliminating the > "full" usage). > > I can live without site-locals, and, furthermore, I personally want > the wg to stop the endless discussion and to concentrate on more > important -from my personal perspective- issues. So, even if the > idea of "arbitrary-chosen prefixes" is just a compromise (without any > real benefit) to convince ourselves, it's okay for me. Then I'll vote > for deprecating site-local.
I don't think the WG has discussed the details of how to handle disconnected sites. One of my high bits expressed at the mike in SF was that we should design IPv6 for the global Internet and not add a bunch of special cases to the global architecture to support local communication. For local communication I personally think that just making up a prefix might not be a bad approach. Whether you use a designed non-unique prefix (like fec0) or a made up prefix for a disconnected site you have the same issue; when you actually connect - either to the global Internet or to some other local domain - you need to renumber. In the case of the global Internet you need to renumber to make global communication work. In case of connecting to some other local domain you need to renumber so that the two domains can communicate i.e. they can't have conflicting addresses. A designated non-unique prefix doesn't make this any easier. But as I said, this is yet to be discussed in the WG, as is the issue of bellovin/zill prefix advertisements for designating the address prefixes for the local domain (which has most of the same issues as using site-locals for "security" benefits). Erik -------------------------------------------------------------------- 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] --------------------------------------------------------------------
