Oracle Cloud Infrastructure Documentation

Task 2: Create a Virtual Cloud Network (VCN)

Before you can launch an instance, you need a virtual cloud network (VCN) and a subnet.

A VCN is a software-defined equivalent of a traditional network, with firewall rules and various types of communication gateways.

In a production environment, a VCN that you can use for the instance might already exist, and you could use it instead of creating a new VCN. However, in this tutorial, you create a new VCN to learn how to do it.

Important

This tutorial creates a simple cloud network to make it easy to launch an instance for learning purposes. When you create your production instances, ensure that you create appropriate security lists and route table rules to restrict network traffic to your instances.

For more information, see Managing VCNs and Subnets.

Avoid entering confidential information in names and tags.

  1. In the Compute Cloud@Customer Console navigation menu, click Networking, then click Virtual Cloud Networks.

  2. Click Create Virtual Cloud Network.

  3. In the Create Virtual Cloud Network dialog box, enter the following information:

    • Name: Enter a descriptive name for the cloud network.

    • Create in Compartment: Select the Sandbox compartment.

    • CIDR Block: Enter a valid CIDR block for the VCN. For example 10.0.0.0/16.

    • Use DNS hostnames in this VCN: Indicate whether you want to use DNS host names in the VCN.

    • DNS Label: If you selected to use DNS, enter a DNS label or leave the field blank to let the system generate a DNS name for you.

    • Tagging: Leave blank. This tutorial doesn't use tags.

  4. Click Create Virtual Cloud Network.

Perform the next task:

Task 3: Create a Subnet