# NetworkType

The network type of the DB instance.

- Source: [`aws-rds/lib/instance.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-rds/lib/instance.ts#L449)
- Type last changed: v2.236.0 · 23 Jan 2026

## Example

```ts
declare const vpc: ec2.Vpc; // VPC and subnets must have IPv6 CIDR blocks
const cluster = new rds.DatabaseCluster(this, 'Database', {
  engine: rds.DatabaseClusterEngine.auroraMysql({ version: rds.AuroraMysqlEngineVersion.VER_3_02_1 }),
  writer: rds.ClusterInstance.provisioned('writer', {
    publiclyAccessible: false,
  }),
  vpc,
  networkType: rds.NetworkType.DUAL,
});
```

## Members

| Member | Description |
| --- | --- |
| `IPV4` | IPv4 only network type. |
| `DUAL` | Dual-stack network type. |
| `IPV6` | IPv6 only network type. |

## Referenced by

- [`DatabaseClusterFromSnapshotProps`](/v2/docs/aws-cdk-lib.aws_rds.DatabaseClusterFromSnapshotProps).networkType
- [`DatabaseClusterProps`](/v2/docs/aws-cdk-lib.aws_rds.DatabaseClusterProps).networkType
- [`DatabaseInstanceNewProps`](/v2/docs/aws-cdk-lib.aws_rds.DatabaseInstanceNewProps).networkType