Re: DNS resolution order with multihomed host

Thank you for your response Kevin.

You understand my problem perfectly but your solution didn't correct it.

This workaround works very well untill i restart the dns service (or the
whole server). Then the order is changed again.

Do you have another idea?

Thank you very much.
Best Regards.

Daniel P.


"Kevin D. Goodknecht Sr. [MVP]" <admin@xxxxxxxxxxxxxx> escribió en el
mensaje news:OC7KYawCGHA.628@xxxxxxxxxxxxxxxxxxxxxxx
> DanielP <dpradoSIN@xxxxxxxxxxxxxx> wrote:
>> Hello,
>>
>> I have one host with two IPs (10.X.X.X & 194.X.X.X) and i want it to
>> be resolved always in the same order:
>> -. 10.X.X.X
>> -. 194.X.X.X
>>
>> I make the requests from 192.168.X.X
>>
>> I have disabled these options in the DNS server:
>> -. Enable round robin
>> -. Enable netmask ordering
>>
>> In the begining it resolves the dns name in the correct order, but
>> suddenly it changes the order.
>
> As close as you can come to resolving in a particular order is to enable
> Netmask ordering with Round Robin disabled. Then DNS will send out the
> addresses with the closest match first. Since neither of these addresses
> are
> on your subnet, even with Netmask ordering disabled, I think DNS will use
> the closest match of the first octet, which would be the 194 record. But,
> I
> could be wrong about this, I've not found a way to get DNS to return a
> particular record in a particular order when the subnet doesn't match any
> record.
>
> I did run a test against a Win2k DNS, I set up a scenario simular to yours
> with simular records. I was able to get DNS to return the same record
> every
> time by enabling round robin running a query with round robin enabled,
> then
> disabling round robin. DNS used the same order in all subsequent queries.
> I
> can't say it will happen every time from now on, because there is no real
> way to tell DNS which order to return records on a particular query if the
> subnet is not a match.
>
>
> --
> Best regards,
> Kevin D. Goodknecht Sr. [MVP]
> Hope This Helps
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.

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