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we plan to migrate our active directory 2003 to 2008.
right now our DC are running on windows server 2003 R2, the Domain server will run on windows server 2008 R2
our acs is 4.2(1) Build 15 Patch 3, running on a windows server 2003 R2.
I want to know if my acs 4.2 running on windows server 2003 R2 will be able to connect to the DC server to get group membership.
Windows 2008R2 is not supported with ACS 4.2.1. The Supported version windows 2008 R2 is the ACS 5.2 and above which is altogether a different product.
You can go to
ACS will stay on windows server 2003 R2
but ACS will have to communicate with our new domain wich will be on a Domain controller running windows 2008 R2
and ACS will stay on a windows 2003 R2 connected to the domain
from this line in the documentation i would say it will work:
ACS 4.2.1 on a 32-bit OS to Windows AD on a 64-bit OS
anyone can clarify this, What I understand is I can't install ACS on windows server 2008 R2 but can I let ACS on a windows server 2003 R2 connected to an active directory 2008 domain running on a Windows server 2008 R2
Cisco ACS 4.x version doesn't support Windows authentication (External User Databases > Windows Database) to Windows 2008, R2.
I also encountered same sort of issue while integrating ACS 4.2 with AD (Active Directory) on Win 2008 R2 platform. I lowered down the functional level of AD from WIN 2008 R2 to WIN 2003 and integration was smooth.
This workaround worked in my scenario.
Below mentioned link can give you more insight of the functional levels.
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