# Use Private Networking with Tableflow in Confluent Cloud You can use Tableflow on Confluent Cloud clusters that are deployed in private networks, ensuring that no data is transmitted over the public internet. ## Private networks on AWS You can use Tableflow on Confluent Cloud clusters that are located in any of the following private network options. - [Private Links](../../../networking/aws-privatelink-overview.md#cloud-networking-aws-privatelink-overview) - [VPC Peering](../../../networking/peering/aws-peering.md#cloud-networking-peering-aws) - [Transit Gateway](../../../networking/aws-transit-gateway.md#aws-transit-gateway) The traffic between Tableflow and your S3 storage is transmitted securely through **Gateway VPC Endpoints**, ensuring that data remains within the AWS private network and does not traverse the public internet. [AWS Glue Catalog integration](../how-to-guides/catalog-integration/integrate-with-aws-glue-catalog.md#cloud-tableflow-integrate-with-aws-glue-catalog) is enabled through **Interface VPC Endpoints**, ensuring that metadata communication occurs securely within private networks without exposure to the public internet. ## Limitations - The built-in [Apache Iceberg™ REST Catalog](../how-to-guides/catalog-integration/overview.md#cloud-tableflow-how-to-guides-catalog-integration-irc) is not supported in private networking-enabled clusters, so you must use external catalog integrations like AWS Glue Data Catalog. - You can’t use Confluent-managed storage in Private Network-enabled clusters. - The [catalog integrations](../how-to-guides/catalog-integration/overview.md#cloud-tableflow-how-to-guides-catalog-integration), like Unity Catalog and Snowflake Open Catalog/Apache Polaris, are not supported via private networking. For more information, see [Tableflow Quick Start Using Your Storage and AWS Glue](../get-started/quick-start-custom-storage-glue.md#cloud-tableflow-quick-start). ## Private networks on Azure You can use Tableflow on Confluent Cloud clusters that are located in Azure private networks, ensuring that no data is transmitted over the public internet. For more information, see [Use Azure Private Networking with Tableflow](tableflow-private-networking-azure.md#tableflow-private-networking-azure). ## Related content - [Tableflow Quick Start Using Your Storage and AWS Glue](../get-started/quick-start-custom-storage-glue.md#cloud-tableflow-quick-start) - [Private Networking Solutions on Confluent Cloud](../../../networking/overview.md#cloud-networking-support-private) #### NOTE This website includes content developed at the [Apache Software Foundation](https://www.apache.org/) under the terms of the [Apache License v2](https://www.apache.org/licenses/LICENSE-2.0.html).