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Home » Microsoft » Windows Server » Active Directory » domain logon - dc in wrong subnet
domain logon - dc in wrong subnet [message #333069] Wed, 02 December 2009 02:26 Go to next message
Sveeny  is currently offline Sveeny  Germany
Messages: 1
Registered: December 2009
Junior Member
I have 2 sites configured DE and NL.
Site DE is added to subnet 192.168.1.0/24
Site NL is added to subnet 192.168.2.0/24
On site DE are 2 dc´s and on side NL is 1 DC (all have the global
catalog).

Sometimes clients from Site DE are taking the DC on site NL for
DomainLogon.

What is wrong ? Subnets and sites are configured. Any idea ?

B/r

Sven
Re: domain logon - dc in wrong subnet [message #333134 is a reply to message #333069] Wed, 02 December 2009 04:27 Go to previous messageGo to next message
meiweb  is currently offline meiweb  Germany
Messages: 2225
Registered: September 2009
Senior Member
Hello Sveeny,

Is in each site a DNS server located and are the machines configured to use
there site DNS as preferred?

So in AD sites and services you configured the subnets and create a site
where the DC for that site is located in? Main site with 2 DCs and Remote
site with it's own DC?

Please post an unedited ipconfig /all from the remot esite DC/DNS and a client
in that site.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
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> I have 2 sites configured DE and NL.
> Site DE is added to subnet 192.168.1.0/24
> Site NL is added to subnet 192.168.2.0/24
> On site DE are 2 dc´s and on side NL is 1 DC (all have the global
> catalog).
> Sometimes clients from Site DE are taking the DC on site NL for
> DomainLogon.
>
> What is wrong ? Subnets and sites are configured. Any idea ?
>
> B/r
>
> Sven
>
Re: domain logon - dc in wrong subnet [message #333198 is a reply to message #333069] Wed, 02 December 2009 06:18 Go to previous message
pbbergs  is currently offline pbbergs  United States
Messages: 1024
Registered: July 2009
Senior Member
The one way I know this can happen is if the dc's in the local site are so
busy they can't respond to the request, the client will go outside his site
for authentication.

On the three dc's I would open up the following text file and scroll to the
bottom, this will list out any clients that don't have a subnet associated
with a site.
%systemroot%\debug\netlogon.log

I check this weekly, since we have such a large network and the network
dudes are constantly adding new subnets without letting us know.


--
Paul Bergson
MVP - Directory Services
MCTS, MCT, MCSE, MCSA, Security+, BS CSci
2008, 2003, 2000 (Early Achiever), NT4
Microsoft's Thrive IT Pro of the Month - June 2009

http://www.pbbergs.com

Please no e-mails, any questions should be posted in the NewsGroup This
posting is provided "AS IS" with no warranties, and confers no rights.

"Sveeny" <goebelweb@googlemail.com> wrote in message
news:ae738f67-8e10-4fb7-bd07-965f08e6c968@k4g2000yqb.googlegroups.com...
I have 2 sites configured DE and NL.
Site DE is added to subnet 192.168.1.0/24
Site NL is added to subnet 192.168.2.0/24
On site DE are 2 dcs and on side NL is 1 DC (all have the global
catalog).

Sometimes clients from Site DE are taking the DC on site NL for
DomainLogon.

What is wrong ? Subnets and sites are configured. Any idea ?

B/r

Sven
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