(Optional) Follow this procedure to create the VCN.
To create the OCI VCN, perform the following steps in the OCI web user interface:
Under Networking, go to Virtual Cloud Networks.
Name: Enter a name for your cloud network. Avoid entering confidential information.
Create in Compartment: This field defaults to your current compartment. Select the compartment you want to create the VCN in, if not already selected.
Select Create Virtual Cloud Network Only.
Specify the CIDR block.
Leave the remaining options alone.
A confirmation page displays the details of the cloud network that you just created.