# Retrieve IPSec Tunnel

Returns the IPSec Tunnel by ID.

To retrieve the IPSec Tunnel, perform a `GET` request.

## Endpoint

Use a [<mark style="color:blue;">region-specific</mark>](/cloud/network-services/vpn-gateway/api-how-tos.md#endpoints) endpoint to retrieve IPSec Tunnel: `https://vpn.{region}.ionos.com/ipsecgateways/{gatewayId}/tunnels/{tunnelId}`.

## Request

```bash
curl --location \
--request GET 'https://vpn.de-fra.ionos.coms/ipsecgateways/66a114c7-2ddd-5119-9ddf-5a789f5a5a44/tunnels/c28b2d3e-7b15-53ca-ae88-6ae9378d6efe' \
--header 'Authorization: Bearer eyJ0eXAiOiJKV1QiLCJraWQiO'
```

{% tabs %}
{% tab title="Path Parameters" %}
You can update the `gatewayId` and `tunnelId` values to get a specific IPSec Tunnel for a given gateway:

| Path Parameter | Type   | Description                         | Example                                |
| -------------- | ------ | ----------------------------------- | -------------------------------------- |
| **gatewayId**  | string | The ID (UUID) of the IPSec Gateway. | `66a114c7-2ddd-5119-9ddf-5a789f5a5a44` |
| **tunnelId**   | string | The ID (UUID) of the IPSec Tunnel.  | `c28b2d3e-7b15-53ca-ae88-6ae9378d6efe` |
| {% endtab %}   |        |                                     |                                        |

{% tab title="Request Header Parameters" %}
To make authenticated requests to the API, the following fields are mandatory in the request header:

| Header Parameter | Required | Type   | Description                                                                       |
| ---------------- | -------- | ------ | --------------------------------------------------------------------------------- |
| `Authorization`  | yes      | string | The Bearer token to enable requests to authenticate using a JSON Web Token (JWT). |
| `Content-Type`   | no       | string | Set this to `application/json`.                                                   |
| {% endtab %}     |          |        |                                                                                   |
| {% endtabs %}    |          |        |                                                                                   |

## Response

**200 Successful operation**

```json
{
  "id": "c28b2d3e-7b15-53ca-ae88-6ae9378d6efe",
  "type": "ipsectunnel",
  "href": "/ipsecgateways/{gatewayId}/tunnels/c28b2d3e-7b15-53ca-ae88-6ae9378d6efe",
  "metadata": {
    "createdDate": "2020-12-10T13:37:50+01:00",
    "createdBy": "ionos:identity:::users/87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "createdByUserId": "87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "lastModifiedDate": "2020-12-11T13:37:50+01:00",
    "lastModifiedBy": "ionos:identity:::users/87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "lastModifiedByUserId": "87f9a82e-b28d-49ed-9d04-fba2c0459cd3",
    "resourceURN": "ionos:<product>:<location>:<contract>:<resource-path>",
    "status": "AVAILABLE",
    "statusMessage": null
  },
  "properties": {
    "name": "My Company Gateway Tunnel",
    "description": "Allows local subnet X to connect to virtual network Y.",
    "remoteHost": "vpn.mycompany.com",
    "auth": {
      "method": "PSK",
      "psk": {}
    },
    "ike": {
      "diffieHellmanGroup": "16-MODP4096",
      "encryptionAlgorithm": "AES256",
      "integrityAlgorithm": "SHA256",
      "lifetime": 86400
    },
    "esp": {
      "diffieHellmanGroup": "16-MODP4096",
      "encryptionAlgorithm": "AES256",
      "integrityAlgorithm": "SHA256",
      "lifetime": 3600
    },
    "cloudNetworkCIDRs": [
      "203.0.113.0/24"
    ],
    "peerNetworkCIDRs": [
      "198.51.100.0/24"
    ]
  }
}
```

{% hint style="success" %}
**Result:** The IPSec Tunnel and its details for the specified `gatewayId` and `tunnelId` are successfully obtained.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ionos.com/cloud/network-services/vpn-gateway/api-how-tos/retrieve-ipsec-tunnel.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.