About interface id in aggregatable global unicast address

[Brian E Carpenter]

As far as I know, although the Open Group UUID/GUID stuff was proposed
for RFC publication in 1998, it was not published. At that time it had
the defect of only supporting 48 bit IEEE addresses, not the complete
EUI-64 format. In any case, as Matt says, that has nothing to do
with IPv6, which does support EUI-64 identifiers.

  Brian

Matt Crawford wrote:
> 
> > I hope this eases some confusion, but by globally unique identifier, I
> > assume you don't mean RFC-defined UUIDs/GUIDs, as these are 128-bits long.
> 
> RFC-defined?  Not in any IETF RFC I can see.  Some RFCs reference DCE
> UUIDs or ISO-11578.  But in any case, IPv6 addressing has nothing to
> do with any UUID or GUID.