You have two EC2 instances in the same VPC. Can they communicate using private IP addresses?

Question

Xavier Antony Prabhaker Victor · Accepted Answer

Yes, two EC2 instances in the same VPC can communicate using their private IP addresses. In fact, keeping traffic internal via private IPs is the recommended best practice in AWS because it is secure, delivers high performance, and avoids data transfer charges associated with public IP communication.

You have two EC2 instances in the same VPC. Can they communicate using private IP addresses?

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