DHCID calculation bug

[David W. Hankins]

On Fri, Jul 17, 2009 at 09:42:11AM +0200, René GARCIA wrote:
> Is there any reflexion to make DHCID values match for the same client using
> DHCPv6 for IPv6 and DHCP for IPv4 ? I know that this has been discussed many
> years ago (on 2003 I think) but I haven't seen any conclusion. Another idea
> was to create a DHCIDv4 and a DHCIDv6 to make both protocols independant but
> I can't find any RFC fixing this.

I think the RFC approach is to require that clients implement the
DUID-based client identifier, in which case the DHCPv6 and DHCPv4 client
on the same system would be identified by the same DUID.  The
specification is a little incomplete because it doesn't alter the non-
normative direction in RFC 2131 requiring a server to treat the DHCPv4
client identifier as an opaque value, but this is not normative so a
server that does this still conforms.

-- 
David W. Hankins	"If you don't do it right the first time,
Software Engineer		     you'll just have to do it again."
Internet Systems Consortium, Inc.		-- Jack T. Hankins
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