> ## Documentation Index
> Fetch the complete documentation index at: https://docs.streamnative.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Private Networking for Google BigLake

This guide describes how to configure private network connections between StreamNative Cloud and Google BigLake metastore. Private connectivity ensures that traffic between your StreamNative BYOC cluster and Google BigLake does not traverse the public internet.

Google BigLake is available only on GCP.

The following diagram shows the network path between your StreamNative BYOC cluster and Google BigLake metastore over private connectivity.

```mermaid theme={null}
flowchart TB
    subgraph BYOC["StreamNative BYOC VPC (GCP)"]
        Cluster["BYOC Cluster"]
        PGA["Private Google API Access"]
    end

    BL["Google BigLake Metastore"]

    Cluster -->|"catalog API requests"| PGA --> BL

    classDef byoc fill:#dbeafe,stroke:#2563eb,color:#1e3a8a
    classDef edge fill:#fde68a,stroke:#b45309,color:#451a03
    classDef ext  fill:#ede9fe,stroke:#7c3aed,color:#4c1d95
    class Cluster byoc
    class PGA edge
    class BL ext
```

## Prerequisites

* A StreamNative BYOC cluster deployed on GCP.
* A prepared Google BigLake catalog. See [Prepare Google BigLake (Iceberg)](/cloud/lakehouse/prepare-catalogs/biglake/iceberg).
* Storage private connectivity configured (if applicable). See [Private Networking for Catalog Integration](/cloud/lakehouse/catalogs/private-networking/overview) for storage connectivity details.

## Configure private connectivity

Google BigLake metastore is a Google-managed service that runs within the Google Cloud network. On GCP, StreamNative configures private network connections to Google Cloud APIs by default in all StreamNative environments.

**No additional action is required on your side** in most cases. All traffic between your StreamNative BYOC cluster and Google BigLake stays within the Google private network automatically.

If your BYOC cluster runs in a [Shared VPC](https://cloud.google.com/vpc/docs/shared-vpc), you must configure private connectivity yourself. See [Private Networking for Catalog Integration](/cloud/lakehouse/catalogs/private-networking/overview#storage-private-connectivity) for details.