[dhcwg] Question about 3315id-for-v4

It seems one of the motivations for draft-ietf-dhc-3315id-for-v4 is to
specify a way in which a dual-stack host can use the same identifier in
DHCPv4 and in DHCPv6.  A uniform identifier for both versions of DHCP would
be useful in the DHCID RR when detecting and reconciling DNS name clashes.

So, is there consensus that draft-ietf-dhc-3315id-for-v4 should be designed
to support the consistent identification of a host in a DHCID RR regardless
of whether the host uses DHCPv4 or DHCPv6?

If the answer is yes, how can that consistent identification be achieved?  I
think the identifier in the latest revision of draft-ietf-dhc-3315id-for-v4
could be used, if the DHCP server and the client agree to use only the DUID
in the DHCID RR.  However, I think it would be better to avoid requiring the
DHCPv4 server to parse the 3315id-for-v4 client identifier for use in the
DHCID RR.  Is there some other way in which the use of the DHCID RR can be
defined to avoid requiring the parsing of any client identification (either
DHCpv4 or DHCPv6)?

- Ralph

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