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Amazon Relational Database Service
User Guide (API Version 2014-10-31)

Determining Whether You Are Using the EC2-VPC or EC2-Classic Platform

Your AWS account and the region you select determines which of the two RDS platforms your DB instance is created on: EC2-Classic or EC2-VPC. The type of platform determines if you have a default VPC, and which type of security group you use to provide access to your DB instance. The legacy EC2-Classic platform is the original platform used by Amazon RDS; if you are on this platform and want to use a VPC, you must create the VPC using the Amazon VPC console or Amazon VPC API. Accounts that only support the EC2-VPC platform have a default VPC where all DB instance are created, and you must use either an EC2 or VPC security group to provide access to the DB instance.

Note

If you are a new Amazon RDS customer, if you have never created a DB instance before, or if you are creating a DB instance in a region you have not used before, in almost all cases you are on the EC2-VPC platform and have a default VPC.

You can tell which platform your AWS account in a given region is using by looking at the RDS console or EC2 console home pages. If you are a new Amazon RDS customer, if you have never created a DB instance before, or if you are creating a DB instance in a region you have not used before, you might be redirected to the first-run console page and will not see the home page following.

If Supported Platforms indicates VPC, as shown in the screenshot following, your AWS account in the current region uses the EC2-VPC platform, and uses a default VPC. The name of the default VPC is shown below the supported platform. To provide access to a DB instance created on the EC2-VPC platform, you must create a VPC security group.


				EC2-VPC platform

If Supported Platforms indicates EC2,VPC, as shown in the screenshot following, your AWS account in the current region uses the EC2-Classic platform, and you do not have a default VPC. To provide access to a DB instance created on the EC2-Classic platform, you must create a DB security group. Note that you can create a VPC on the EC2-Classic platform, but one is not created for you by default as it is on accounts that support the EC2-VPC platform.


				EC2-Classic platform

Note

If you are interested in moving an existing DB instance into a VPC, you can use the AWS Management Console to do it easily. For more information. see Moving a DB Instance Not in a VPC into a VPC.