Site to Site VPN

• By default instances inside a VPC can't communicate with your own remote network.
• supports Interne Protocol Security (IPsec) VPN connections.
• Requires:
  • Customer Gateway Device (physical or software)
    • for HA needs to have multiple devices
  • Client Side of the VPN (your network / office / data-center )
  • (VPG)Virtual Private Gateway on the AWS side attached to the VPC.