Mysterious missing DHCPv6 feature, was Re: How does one obtain an IPv6 DNS server when VPNing to an ASA?

[Gert Doering]

Hi,

On Thu, May 27, 2010 at 03:02:33PM -0700, Doug Barton wrote:
> >>> But thanks for agreeing that it's hard to find a scenario that backs
> >>> the claim "with RA+DHCP, I need to touch many more places than with
> >>> DHCP-only".
> >>
> >> 100% more places.  Anyone care to define whether that's "many" or not?
> >
> > Huh?  You need to touch the router, and the server.  In both cases.
> >
> > Sounds like "same number of places" to me.
> 
> Sure, in your contrived example the number of things to configure is 
> equal. I can contrive equally effective examples of stuff that doesn't 
> require the people doing the configuration to touch the router.

Funny enough that nobody making that claim is actually delivering.

So: please do so.  I have explicitely asked for an example where "DHCP-only"
would require only a single configuration change where "DHCP+RA" would 
require N+1 configuration changes for N affected routers.

You could consider this "enlighten the unenlightened" - if there *are*
such scenarios, I'd like to learn about them.  Vague handwaving isn't
helping.

> You still haven't answered the question, "Why should RA be _required_ in 
> IPv6 when DHCP is perfectly capable of doing everything that RA can do 
> and more?"

It is not required.  I have said so.

Gert Doering
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