# Direct Connect with AWS Transit Gateway over transit VIF
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The following diagram shows how you can connect VPCs from multiple AWS Regions to an on-premises environment by using Direct Connect and AWS Transit Gateway over a transit VIF.

![\[Connecting VPCs from multiple Regions to on premises.\]](http://docs.aws.amazon.com/prescriptive-guidance/latest/designing-control-tower-landing-zone/images/networking-dc-transit-vif.png)


The transit gateway routes traffic through the centralized Direct Connect gateway for all AWS Regions. A transit VIF attachment to the Direct Connect gateway enables your network to connect up to six Regional, centralized transit gateways over a private, dedicated connection.