VPC Interface Endpoint vs VPC Gateway Endpoint: Understanding the Key Differences — Part3

Fabiano Becatini
6 min readAug 21, 2023
Photo by Alina Grubnyak on Unsplash

What is the real benefit of using Amazon VPC endpoint?

Can you save money and improve security with VPC endpoint?

In part 1 of this series, it has been mentioned the differences between Interface endpoint and Gateway endpoint, and how to access public AWS services through a private connection securely.

VPC Gateway Endpoint Use-Case

AWS Gateway endpoints provide reliable connectivity to S3 and DynamoDB without requiring an internet gateway or a NAT device for your VPC.

Unlike Interface endpoints, Gateway endpoints do not use AWS PrivateLink.

Instead, it adds entries to the route tables, directing traffic to S3 or DynamoDb through the VPC Endpoint.

Then we can keep the instances in private subnets and still communicate to the s3 API.

When routing traffic to S3 via NAT Gateway, for instance, you have to pay for all the bytes that transfer…

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