Add a Subinterface to an EtherChannel Interface

Step 1

In the navigation pane, click Security Devices.

Step 2

Click the Devices tab.

Step 3

Click the FTD tab and select the threat defense you want to add an EtherChannel to. In the Management pane located to the right, select Interfaces.

Step 4

Select the interface you want to group the subinterface under. Click the + icon and select Subinterface.

Step 5

Enter a Logical Name.

Step 6

(Optional) Enter a description.

Step 7

(Optional) Assign a security zone to the subinterface. Note that you cannot assign a security zone if the subinterface does not have a logical name.

Step 8

Enter a VLAN ID.

Step 9

Enter the EtherChannel ID. Use a value between 1 and 48; use values between 1 and 8 for the Firepower 1010 series.

Step 10

Select the IPv4, IPv6, or Advanced tab to configure the IP address of the subinterface.

Step 11

Click Save.