Amazon Virtual Private Cloud
Transit Gateways

Authentication and Access Control for Your Transit Gateways

AWS uses security credentials to identify you and to grant you access to your AWS resources. You can use features of AWS Identity and Access Management (IAM) to allow other users, services, and applications to use your AWS resources fully or in a limited way, without sharing your security credentials.

By default, IAM users don't have permission to create, view, or modify AWS resources. To allow an IAM user to access resources, such as a transit gateway, and perform tasks, you must create an IAM policy that grants the IAM user permission to use the specific resources and API actions they'll need, then attach the policy to the IAM user or the group to which the IAM user belongs. When you attach a policy to a user or group of users, it allows or denies the users permission to perform the specified tasks on the specified resources.

To work with a transit gateway, one of the following AWS managed policies might meet your needs:

  • PowerUserAccess

  • ReadOnlyAccess

  • AmazonEC2FullAccess

  • AmazonEC2ReadOnlyAccess

For more information, see IAM Policies for Amazon EC2 in the Amazon EC2 User Guide.