What VPC solution should be used to connect two VPCs securely?

VPC peering is the optimal solution for connecting two Virtual Private Clouds (VPCs) securely within the AWS ecosystem. This approach allows direct network routing between the two VPCs, enabling resources in each VPC to communicate seamlessly as if they were on the same local network.

With VPC peering, there is no need for an intermediate gateway, and the traffic between the peered VPCs does not traverse the public internet, which enhances security. Additionally, VPC peering is beneficial because it supports various IP address ranges, without undergoing complex configuration or additional components.

This solution is especially useful in scenarios where you want to maintain isolation of VPCs while still needing them to communicate privately. Organizations often utilize VPC peering for inter-departmental communication or when working with external partners while keeping security and performance in focus.

Other options also present valid methods for connecting VPCs but do not serve the same scope or use case as effectively as VPC peering. For instance, a VPN connection typically requires a Virtual Private Gateway and is often used for secure communication over the internet, which may introduce latency and dependency on internet connectivity. Direct Connect offers dedicated network connections and is typically used for hybrid cloud setups, connecting on