The exit can be redriven for authorization after the initial authorization call to reject the search or limit the scope of the search. When the exit is called for initial authorization, the DLU information might not be complete or accurate. Redriving the exit for authorization enables the exit to verify the DLU information before a directed search that could result in a session establishment is sent.

The exit indicates that it is to be redriven by setting the redrive bit in the search task options and setting return code 36 on the initial authorization call. If directory services management obtains DLU information that results in the sending of a directed search, the exit is redriven for authorization before the directed search is sent. When the exit is redriven, the initial authorization parameter list is used with the updated DLU information and the redrive bit is set to the value on to indicate that it is a redrive of the authorization function. When the NETID value is an alias and a border node is searching other networks, the DLU NETID value is updated with the NETID value of the adjacent network that is being searched. The exit cannot change the NETID value from the alias value to the real value on a redrive call.