On Sat, 2002-11-23 at 17:14, Michel Py wrote: > Mark, > > > Mark Smith wrote: > > Michel, maybe my mind isn't lateral enough, but I > > can't think of an example of anybody who would want > > to pay for guaranteed globally unique site local > > addresses. Usually people seem to be happy with > > "good enough and free" verses "perfect and not-free". > > Are there any examples you might be able to give ? > > Any organization that is serious about using site-locals. Two examples > comes to mind: > - Corporate mergers (avoids the renumbering pain found today when the > two corporations were using 10.0.0.0) > - VPN connections. > > As Brian Carpenter mentioned earlier, globally unique site locals are > not good for IPv6 NAT, so let's figure them out. >
Absolutely agree. I've experienced the both the VPN and network 10 addressing situation concurrently with IPv4, in addition to having to come up with bodgey solutions, I spent two months just saying to my self "customers should just get registered address space, and make my life (and theirs') a whole lot easier." Globally unique site locals would fix a lot of the issues I had with trying to work out how I might use site-locals in large IPv6 network. My question was in the context of following Pekka's almost globally unique site locals model. I like the property of his model where there is a very remote possibility of site-local address space collision. Lack of absolute guarantees of globally unique site local addressing is a bit of a "stick" that will prevent people from trying to use their globally unique site locals for global communications, as per Brian Zill's concerns. I also like the fact that his model doesn't require any interaction with a registry of some sort, and any associated costs ie. his model is "good enough and free", rather than "perfect and not-free". Thanks, Mark. -------------------------------------------------------------------- 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] --------------------------------------------------------------------
