If you are directly connected to the host through the vSphere Client, you can license the host.

1

From the vSphere Client, click the Configuration tab.

2

Under Software, click Licensed Features.

3

Click Edit.

4

Assign a license key.

Select Assign an existing license key to this host and select a license key from the Product list.

Select Assign a new license key to this host, click Enter Key, and enter a license key and an optional label for the license key.

5

Click OK.