Supported VPC configurations for EC2 instances
The Amazon Virtual Private Cloud (VPC) lets you provision a logically isolated region of the AWS cloud in a virtual network that you define.
To deploy Data Loss Prevention on AWS, you must use a VPC. Symantec only supports connecting an on-premises Enforce Server to a detection server that is deployed to an EC2 instance with a VPC.
If you created an AWS account after December 2013, when you provision an EC2 instance you either use the default VPC or one you define.
If you created an AWS account before December 2013, note the following. When you provision an EC2 instance you are given the option of creating an EC2 "Classic" instance. An EC2 Classic instance is EC2 without VPC, or EC2 with VPC. If this situation applies to you, you must make sure you provision the EC2 instance with VPC.