I talk people out of using them at least once every two weeks as I get a lot of mail on this. I did have one case where they made sense. A factory floor where they have no connection to the outside for robotics. The reason was they did not want to mess in the architecture of this part of the network with asking for IPv6 addresses. In that case they can use IPv6 without an ISP or paying for the address and getting one. Or managing this space.
But most people want both global and site and when I am done they just want global. 1918 was not digested in a pure form (if one existed) but in a brain dead form and gave many users the wrong impression. /jim [Have you ever seen the rain coming down on a sunny day] > -----Original Message----- > From: Keith Moore [mailto:moore@;cs.utk.edu] > Sent: Wednesday, October 30, 2002 8:11 PM > To: Bound, Jim > Cc: [EMAIL PROTECTED]; Tim Hartrick; > [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: Limiting the Use of Site-Local > > > > I would also ask all those who want to kill SLs turn your > support to > > Margaret to put the controls on. > > Yes, this is the position I support. > > Even I do not expect to kill SLs in the sense that we would > reallocate those addresses for other purposes, forbid using > them under all > conditions, expect routers to always filter them or hosts to always > ignore them, etc. I don't like pulling the rug out from under > people who have built designs around them, even if I think > their designs are shortsighted and/or naive. > > I do however think we need to discourage use of SLs except in > isolated networks. > > I also think we need to make it clear that in general applications > aren't expected to work in the presence of a mixture of scoped and > global addresses. Applications should treat SLs exactly like > global addresses. > > Finally I think we need to discourage the idea that SLs are a > security mechanism, because SL filters are at best only > marginally better than other kinds of address filters (and > I'm being charitable there). > > 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] --------------------------------------------------------------------
