Configure the Trust in Active Directory

On the AD server, run the following command in a command window with Administrator privilege and create a definition for the KDC of the MIT realm.
ksetup /addkdc IBM.COM c902f05x04.gpfs.net

On the AD server, create an entry for the one-way trust.

Note: The password used here will be used later in the MIT KDC configuration of the trust.
netdom trust IBM.COM /Domain:AD.GPFS.NET /add /realm /passwordt:Admin1234