You can configure an Amazon Redshift V2 connection to establish private communication with Amazon S3 for staging.
You need to configure an interface endpoint on the AWS console to enable private communication to stage data in Amazon S3. The AWS S3 VPC endpoint enables an S3 request to be routed to the Amazon S3 service, without connecting to the internet.
Consider the following guidelines to establish private communication with Amazon S3:
•When an Amazon Redshift Cluster is spawned, an Elastic Network Interface (ENI) is generated for the cluster within the subnet. Ensure that the route table of the S3 gateway endpoint corresponds to the same subnet where your Redshift cluster ENI is created.
•To connect to an Amazon S3 bucket using a VPC endpoint, the Amazon Redshift cluster and the Amazon S3 bucket that it connects to must be in the same AWS region.