Re: [DNA-BOF] BoF Last Call on DNA WG Charter.

[Bernard Aboba <aboba@internaut.com>]

> Indeed it may be, if nodes are consistent in
> getting their addresses from the DHCPv6 server.
> The current status from RFC-2462 is that hosts
> DAD their addresses even if obtained from DHCP
> on their original allocation.

This is true for DHCPv4 as well, because the check is not required for the
DHCPv4 server.  The question is whether DAD needs to be
*rerun* on re-connection.

> This is not because of problems with DHCP lease
> state, but because of autoconfiguring nodes (for
> example, if A=1 in an RA).
>
> I'd guess that the same types of autoconfiguring nodes
> would be the 'troublemakers' for DHC hosts which
> left a network temporarily and came back with a valid lease.

I'd agree that if DHCPv6 and autoconfiguration are used at allocate
addresses *from the same prefix* there will be an issue.  However, this
seems like a bad idea to me, for a number of reasons.  Is this really a
case we need to consider?