Onboard an FDM-Managed Device to CDO Use the following procedures to onboard an FDM-managed to CDO with the following methods. Onboard an FDM-Managed Device Using Username, Password, and IP AddressOnboard an FDM-Managed Device Running Software Version 6.4 or 6.5 Using a Registration KeyOnboard an FDM-Managed Device Running Software Version 6.6+ Using a Registration KeyOnboard an FDM-Managed Device using the Device's Serial NumberOnboard an FDM-Managed High Availability PairOnboard an FTD Cluster