By default, when you create an AWS account, Amazon automatically provisions a default VPC for you. You can customize the default VPC based on your needs. You can add more subnets, remove any existing subnet, change the default route table, attach network gateways, or change the Network Access Control List (NACL) as per your requirements.
You can configure the default VPC and use it as needed or you can create additional VPCs using either the VPC wizard or by creating custom VPCs manually. The VPC wizard provides four predefined categories of VPCs, which can help you quickly build the VPCs.
The wizard provides the following four types of VPCs:
- VPC with a single public subnet
- VPC with public and private subnets
- VPC with public and private subnets and hardware VPN access
- VPC with private subnet only and hardware VPN access
Let's understand each of these VPC types and the steps involved in creating the respective VPCs.