Michel Py wrote: > > Brian, > > > Brian E Carpenter wrote: > > And the fact is that enterprise network managers are > > very happy to have a class of addresses that cannot be > > globally routed and are filtered by default as bogons > > by all ISPs. > > You forget that the very reason RFC1918 addresses are filtered as bogons > is precisely because they are ambiguous.
Well, with RFC 1918 there is no way to disentangle the notion of "private" from the notion of "ambiguous". So I don't think this is relevant. > > So they just love RFC 1918 addresses for that, and > > hate them for their ambiguity (since that creates a > > mess when they have to be routed anyway, e.g. on VPNs). > > The main point of this draft, as far as I'm concerned, > > is to convey this requirement, which isn't met either > > by PA prefixes or the old SL prefix. > > The requirement was met fine by the SL prefix; the only reason they > still are ambiguous is because both Bob and I put our drafts to remove > ambiguity from SLs on the back burner due to the deprecation situation. Sure, at one level it doesn't matter whether the limited addresses are FEC0:xxxx::/48 or as proposed in draft-hinden. I think it's better for existing code to leave FEC0::/10 reserved and deprecated, but that's a secondary argument. Brian > > Michel. > > -------------------------------------------------------------------- > 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] > -------------------------------------------------------------------- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Brian E Carpenter Distinguished Engineer, Internet Standards & Technology, IBM NEW ADDRESS <[EMAIL PROTECTED]> PLEASE UPDATE ADDRESS BOOK -------------------------------------------------------------------- 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] --------------------------------------------------------------------
