* The VPC connects to your network via a virtual private gateway and a customer gateway.
## Features
### VPN - CloudHub
* Connect **multiple remote sites** to AWS through VPN connections.
* Use VPC virtual private gateway with multiple Customer gateways.
* Use this approach if you have **multiple branch offices** and existing internet connections and would like to implement a convenient, potentially low-cost hub-and-spoke model for primary or backup connectivity between these remote offices.
CloudHub architecture
***
## Concepts
* **IPsec VPN**: AWS uses IPsec (Internet Protocol Security) for VPN connections.
* **Customer Gateway**: This is either a physical device or software in your network that connects to the VPN.
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