As you know, I was in favor of setting aside a prefix (FECO::, in fact) for use as private address space (either on disconnected networks, or behind NATs), but the consensus of the folks in the IPv6 WG meeting was to deprecate that prefix altogether. There were several compelling arguments from operators and others that we don't need a special prefix for disconnected sites...
Besides, we have three such prefixes, given RFC-1918 and 6to4: 2002:A00::/24, 2002:AC10::/28, and 2002:C0A8::/32.
-- /============================================================\ |John Stracke |jstracke@centive.com | |Principal Engineer|http://www.centive.com | |Centive |My opinions are my own. | |============================================================| |"God does not play games with His loyal servants." "Whoo-ee,| |where have you *been*?" --_Good Omens_ | \============================================================/