AWS Site-to-Site VPN 和 AWS VPC 对等互连之间的区别？

Question

what is the difference between AWS Site-to-Site VPN and Inter-Region VPC Peering?

You can establish peering relationships between VPCs across different AWS Regions (also called Inter-Region VPC Peering). This allows VPC resources including EC2 instances, Amazon RDS databases and Lambda functions that run in different AWS Regions to communicate with each other using private IP addresses, without requiring gateways, VPN connections, or separate network appliances.

Answer 1

AWS Site-to-Site enables access to your remote network from your VPC. In other words, an AWS Site-to-Site VPN connection connects your VPC to your datacenter.

A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses. Using VPC peering, you can connect your own VPCs, VPCs in different accounts, and even VPCs across different accounts.

Please refer to VPC FAQs here for more details.