Cisco Firepower 2100 Getting Started Manual page 75

Firepower Threat Defense Deployment with a Remote FMC
Step 11
Click Add a Dynamic DNS (DDNS) method.
DDNS ensures the FMC can reach the FTD at its Fully-Qualified Domain Name (FQDN) if the FTD's IP
address changes. See Device > System Settings > DDNS Service to configure DDNS.
If you configure DDNS before you add the FTD to the FMC, the FTD automatically adds certificates for all
of the major CAs from the Cisco Trusted Root CA bundle so that the FTD can validate the DDNS server
certificate for the HTTPS connection. The FTD supports any DDNS server that uses the DynDNS Remote
API specification
Step 12
Click Connect. The FMC Registration Status dialog box shows the current status of the switch to FMC.
After the Saving FMC Registration Settings step, go to FMC, and add the firewall.
Figure 22: FMC Registration Status
If you want to cancel the switch to FMC, click Cancel Registration. Otherwise, do not close the FDM browser
window until after the Saving FMC Registration Settings step. If you do, the process will be paused, and
will only resume when you reconnect to FDM.
If you remain connected to FDM after the Saving FMC Registration Settings step, you will eventually see
the Successful Connection with FMC dialog box, after which you will be disconnected from FDM.
(https://help.dyn.com/remote-access-api/).
Central Administrator Pre-Configuration Using FDM
Cisco Firepower 2100 Getting Started Guide
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