A pointer to another conceptual row in this usmUserTable. The user in this other conceptual row is called the clone-from user.

When a new user is created (i.e., a new conceptual row is instantiated in this table), the privacy and authentication parameters of the new user must be cloned from its clone-from user. These parameters are: - authentication protocol (usmUserAuthProtocol) - privacy protocol (usmUserPrivProtocol) They will be copied regardless of what the current value is.

Cloning also causes the initial values of the secret authentication key (authKey) and the secret encryption

key (privKey) of the new user to be set to the same values as the corresponding secrets of the clone-from user to allow the KeyChange process to occur as required during user creation.

The first time an instance of this object is set by a management operation (either at or after its instantiation), the cloning process is invoked. Subsequent writes are successful but invoke no action to be taken by the receiver. The cloning process fails with an 'inconsistentName' error if the conceptual row representing the clone-from user does not exist or is not in an active state when the cloning process is invoked.

When this object is read, the ZeroDotZero OID is returned.