vista, dns woes ?

James Clark Calloway callowayj at
Tue Jun 5 19:19:34 UTC 2007

It was a global option.

We relied on the unknown classification to get
the dns server defined for the unknown pool.

In that same subnet we have some known devices
that get the "good" dns servers. It's only if you
are unknown that you get into the dynamic pool
and thats where the "bad" dns servers are defined.

On Tue, 5 Jun 2007, Simon Hobson wrote:

> James Clark Calloway wrote:
>> At first we assumed that VISTA was holding on
>> to DNS servers or some such .. but it seems
>> that with the DHCPINFORM the server gives out
>> the wrong set.
> IIRC the server does not use the same processing in response to a
> dhcp inform message - so I think the DNS supplied would be that
> specified for the subnet rather than any class the client may come
> under. I vaguely recall David giving us that snippet some time ago.
> Is the 'incorrect' dns info what is configured for the subnet by any chance ?
> I GUESS that the reasoning was that dhcp inform is normally used by
> applications to elicit information such as proxies etc, not by the OS
> to obtain config information that it should have got with it's
> discover/request operations.

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