Range Based Address Resolution User Guide Configuration of RBAR RBAR Configuration Destinations configuration Editing a Destination 3.2.3.3 Editing a Destination Use this task to edit a Destination. Click RBAR, and then Configuration, and then Destinations. Select the Destination you want to edit and click Edit. Update the relevant fields.For more information about each field, see Table 3-3. The Name field is read-only and cannot be edited. Perform one of the following actions: Click OK to save the changes and return to the RBAR > Configuration > Destinations page. Click Apply to save the changes and stay on this page. Click Cancel to return to the RBAR, and then Configuration, and then Destinations page without saving the changes. If OK or Apply is clicked and any of the following conditions exist, an error message appears: Both the Realm and Fully Qualified Domain Name are empty; no value was entered The Fully Qualified Domain Name is not unique; it already exists in the system The entry in any field is not valid (wrong data type or out of the valid range)