Re: [rfc2462bis issue 281] Requirement for 64bit I/F ID

[Pekka Savola <pekkas at netcore.fi>]

On Fri, 27 Feb 2004, Jun-ichiro itojun Hagino wrote:
> > I've been thinking about this issue for a while.  Currently, I'm not
> > sure if we need to do something in rfc2462bis for this issue.
> (snip)
> > Please someone clarify this point.  Then I'll consider what is
> > necessary for rfc2462bis (or whether we need to do something in the
> > first place) for this matter.
> 
> 	i guess it is either:
> 	- interface ID is always 64 bit, no matter what.  addr-arch should be
> 	  simplified and state that interface ID is 64 bit.
> 	- stateless addrconf (and maybe ND?) is currently defined only for
> 	  unicast prefixes starting with "001", where interface ID is 64 bit.
> 	  stateless addrconf (and maybe ND) for other unicast prefixes is left
> 	  as a homework for readers.

How about:

        - stateless address autoconf is only defined when the prefix 
is 64 bits.  If the received router advertisement has some other 
prefix length, don't use the prefix.

I guess this is close to your first assumption -- only, I would 
probably not revise addr-arch at all.  That's beyond the scope of this 
document IMHO.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


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