Why used DHCPv6 when RA has RDNSS and DNSSL?

[sthaug at nethelp.no]

>> When I read DHCPv6 vs SLAAC it often boils down to "control" but I
>> don't see the need to allocate a dynamic address if the autogenerated
>> are used. For client's you dont really have any inbound connections
>> unless it's a support case.
>>
>> What's your view on this?
> 
> We only use DHCPv6 to assign IPv6 DNS addresses to devices.
> 
> Otherwise, we rely on SLAAC.
> 
> DHCPv6 took itself out of the running when it failed to provide the
> default gateway to its clients.

Note that there have been multiple requests for DHCPv6 to do this but
every attempt has been shot down.

Steinar Haug, AS2116