DCA configuration For Windows WorkGroup


We have configured DCA with a REALMS that use Kerberos to manage the Active Directory computers.

But, we also have several Windows Computers that are configured in WORKGROUP mode. 

Our problem is that we don't know how we should configure DCA for these computers, as when are in WORKGROUP mode these doesn't use Kerberos to validate.

May somebody tell us how to configure DCA to validate to these Windows  WORKGroup computers? If I'm not wrong, documentation only explains kerberos configuration.