# Create a Managed NAT Gateway

The NAT Gateway service allows instances in a private subnet to connect to the Internet or other services but prevents inbound connections from the Internet. To create a NAT gateway, use a `POST` request to specify the data center, public IP addresses, and the LANs that will route through it.

## Endpoint

`https://api.ionos.com/cloudapi/v6/datacenters/{datacenterId}/natgateways`

## Request

```bash
curl --location \
--request POST 'https://api.ionos.com/cloudapi/v6/datacenters/15f67991-0f51-4efc-a8ad-ef1fb31a480c/natgateways' \
--header 'Authorization: Bearer $IONOS_TOKEN' \
--header 'Content-Type: application/json' \
--data-raw '{
  "properties": {
    "name": "Production NAT Gateway",
    "publicIps": [
      "198.51.100.25"
    ],
    "lans": [
      {
        "id": "2",
        "gatewayIps": [
          "192.168.1.5"
        ]
      }
    ]
  }
}'
```

{% tabs %}
{% tab title="Request Body Parameters" %}
The following table lists the request body parameters:

| **Body Parameters**            | **Required** | **Type** | **Description**                                                                                                                                                                                | **Example**              |
| ------------------------------ | ------------ | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------ |
| `properties.name`              | yes          | string   | The name of the resource.                                                                                                                                                                      | `Production NAT Gateway` |
| `properties.publicIps`         | yes          | array    | A collection of public IP addresses. Use an IP address that you have reserved for this location.                                                                                               | `["198.51.100.25"]`      |
| `properties.lans`              | no           | array    | A collection of LANs connected to the NAT gateway. Include a valid subnet mask for each IP address. If you do not provide an IP address, the system generates an IP address with a /24 subnet. | See nested object below. |
| `properties.lans[].id`         | yes          | string   | The ID of the LAN connected to the NAT gateway.                                                                                                                                                | `2`                      |
| `properties.lans[].gatewayIps` | no           | array    | A collection of gateway IP addresses. The system auto-generates these if you do not provide them. These addresses must stay within the LAN's IP address range.                                 | `["192.168.1.5"]`        |
| {% endtab %}                   |              |          |                                                                                                                                                                                                |                          |

{% tab title="Request Header Parameters" %}
Include the following mandatory fields in the request header to authenticate your requests:

| **Header Parameters** | **Required** | **Type** | **Description**                                                             |
| --------------------- | ------------ | -------- | --------------------------------------------------------------------------- |
| `Authorization`       | yes          | string   | Use a Bearer token to authenticate requests through a JSON Web Token (JWT). |
| `Content-Type`        | yes          | string   | Set it to `application/json`.                                               |
| {% endtab %}          |              |          |                                                                             |
| {% endtabs %}         |              |          |                                                                             |

## Response

A **202 Accepted** response indicates that the creation of the NAT Gateway has been initiated successfully. The response body contains the `resource id` and other deployment details.

{% hint style="info" %}
**Note:** NAT Gateway creation is performed asynchronously. The resource status maintains a `BUSY` status until provisioning completes. For core Cloud API endpoints, the response includes a `Location` header with a URL to poll the request status.
{% endhint %}

```json
{
  "id": "b63911b7-5f86-48f7-8d5f-86b85e0e993e",
  "type": "natgateway",
  "href": "https://api.ionos.com/cloudapi/v6/datacenters/15f67991-0f51-4efc-a8ad-ef1fb31a480c/natgateways/b63911b7-5f86-48f7-8d5f-86b85e0e993e",
  "metadata": {
    "etag": "45480eb3fbfc31f1d916c1eaa4abdcc3",
    "createdDate": "2024-01-15T10:45:30+00:00",
    "createdBy": "ionos:identity:::users/87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "createdByUserId": "87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "lastModifiedDate": "2024-01-15T10:45:30+00:00",
    "lastModifiedBy": "ionos:identity:::users/87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "lastModifiedByUserId": "87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "state": "BUSY"
  },
  "properties": {
    "name": "Production NAT Gateway",
    "publicIps": [
      "198.51.100.25"
    ],
    "lans": [
      {
        "id": 2,
        "gatewayIps": [
          "192.168.1.5"
        ]
      }
    ]
  }
}
```


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