Why used DHCPv6 when RA has RDNSS and DNSSL?

[Fernando Gont]

On 31/3/20 16:03, Gert Doering wrote:
> Hi,
> 
> On Tue, Mar 31, 2020 at 03:10:50PM -0300, Fernando Gont wrote:
>>> So, managed networks tend to like DHCPv6 (DNS!), and wonder how they
>>> should cope with Android.
>> Probably they don't.
> 
> I'm working with one enterprise right now, and one of the options on
> the table is "have a separate wifi segment for android with SLAAC,
> and use the NAC software in place to bump android devices to that
> subnet".
> 
> Which is a major PITA...
> 
> (What they *want* is "IPAM shows what IPv6 address is in use on which
> device in the network", which DHCPv6 would do nicely, including
> static assignments via DHCP reservations - while everything else
> relies on "IPv6/MAC ND logging on the router" or other disintegrated
> fumbling...)

IMO, the work of folks doing standardization should be to provide the 
tools such that folks running networks can pick whatever they feel fits 
best.

IPv6 automatic configuration is kind of a mess (an artifact of history 
and religious battle).  That's what folks like myself respond when asked 
what's the rationale for what we have.

Thanks,
-- 
Fernando Gont
e-mail: fernando at gont.com.ar || fgont at si6networks.com
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