Create or Edit an FTD Active Directory Realm Object
About Active Directory Realm Objects
When you create or edit an identity source object such as an AD realm object, CDO sends the configuration request to the FTD devices through the SDC. The FTD then communicates with the configured AD realm.
Note that CDO does not read the Directory Password for AD realms that are configured through the FDM console. If you use an AD realm object that was originally created in FDM, you must manually enter the Directory Password.