3.4.5.5.4 Calling NetrGetForestTrustInformation
The client calling this method MUST be a DC in a different domain. If the NegotiateFlags bit T is not set, then the client does not call this method.
The client MUST do the following:
Have a secure channel established with a domain controller in the domain identified by domain-name and pass its name as the ServerName parameter.
Pass a valid client Netlogon authenticator as the Authenticator parameter.
After the method returns, the client MUST verify the ReturnAuthenticator, as defined in section 3.1.4.5.
On receiving STATUS_ACCESS_DENIED, the client SHOULD<124> reestablish the secure channel with the domain controller.