Cisco Firepower 2100

Figure 8: Add Device Using a Registration Key
Set the following parameters:
• Host—Enter the IP address or hostname of the threat defense you want to add. You can leave this field
blank if you specified both the management center IP address and a NAT ID in the threat defense initial
configuration.
Cisco Firepower 2100 Getting Started Guide
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Threat Defense Deployment with the Management Center
Register the Threat Defense with the Management Center