Cisco Firepower 1010 - Configure the DHCP Server

b) Enable the interface by checking the Enabled check box.
c) (Optional) Change the VLAN ID; the default is 1. You will next add a VLAN interface to match this ID.
d) Click OK.
Step 5 Add the inside VLAN interface.
a) Click Add Interfaces > VLAN Interface.
The General tab appears.
b) Enter a Name up to 48 characters in length.
For example, name the interface inside.
Cisco Firepower 1010 Getting Started Guide
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Threat Defense Deployment with CDO
Configure Interfaces