Using Multiple AD domains with ACS

Unanswered Question
Sep 20th, 2010


Is it possible to use multiple domains for authentication with ACS? I need to use AAA to authenticate remote users into a centralised location but the users will be from different domains and I was hoping to use a single applicance to cater for all domains. Can this be achieved using LDAP? I understand that ACS can only be part of one AD domain.....

In essence I am hoping that I will be able to authenticate the user based on their domain\credentials.

Thanks in advance


I have this problem too.
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Javier Henderson Tue, 09/21/2010 - 09:29

ACS can only join one domain, but it can authenticate users in other domains if there are trusts established.

clarke.jason.kit Tue, 09/21/2010 - 17:58

Hi Javier,

I understand that ACS can only join a single AD domain - but can it use LDAP to authenticate users from different AD domains - I don't want to have to established trusts between different domains.

Kind regards


girish_gavandi Wed, 04/18/2012 - 03:05

Hi Javier,

Is there any document available detailing about how this can be achieved?

Any help is much appreciated.

Many Thanks.



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