---
title: "assignSecondaryIps"
slug: "compute-vserver-networkinterface-assignsecondaryips"
updated: 2026-09-17T10:06:00Z
published: 2026-09-17T10:06:00Z
canonical: "api.ncloud-docs.com/compute-vserver-networkinterface-assignsecondaryips"
---

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

# assignSecondaryIps

Available in VPC

Assign a secondary IP to a network interface.

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| GET \| POST | /vserver/v2/assignSecondaryIps |

              Note

              

This guide is based on the GET method. POST method call tests can be performed through Swagger in the API Gateway service of the NAVER Cloud Platform console.

### Request headers

For information about the headers common to all Server APIs, see [Server request headers](/docs/en/compute-vserver#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request query parameters

You can use the following query parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `regionCode` | String | Optional | Region code - See [getRegionList](/docs/en/compute-vserver-server-common-getregionlist). - First Region in the query results (default) |
| `networkInterfaceNo` | String | Required | Network interface number - See [getNetworkInterfaceList](/docs/en/compute-vserver-networkinterface-getnetworkinterfacelist). |
| `secondaryIpList.N` | Array | Conditional | Secondary IP list - Up to 5 IP address ranges in the subnet can be entered. - At least 1 must be entered including `secondaryIpCount`. - Example: `secondaryIpList.1=192.168.0.1&secondaryIpList.2=192.168.0.2` |
| `secondaryIpCount` | Integer | Conditional | Number of auto-assigned secondary IPs - 0-5 - Automatically assign private IPs sequentially. - At least 1 must be entered including `secondaryIpList`. - Up to 5 can be entered per network interface. |
| `allowReassign` | Boolean | Optional | Whether to allow explicit reassignment - `true` \| `false` (default) - `true`: Reassign if the secondary IP is already in use. - `false`: An error occurs if the secondary IP is already in use. - Only apply to IPs specified with `secondaryIpList`. |
| `responseFormatType` | String | Optional | Format of the response data - `xml` (default) \| `json` |

### Request example

The request example is as follows:

```
curl --location --request GET 'https://ncloud.apigw.ntruss.com/vserver/v2/assignSecondaryIps
?regionCode=KR
&networkInterfaceNo=70***6
&secondaryIpList.1=10.0.10.11
&secondaryIpCount=1
&allowReassign=true
&responseFormatType=json' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}'
```

## Response

This section describes the response format.

### Response body

The response body includes the following data:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `assignSecondaryIpsResponse` | Object | - | Response result - See [NetworkInterfaceList](/docs/en/common-vapidatatype-networkinterfacelist). |
| `assignSecondaryIpsResponse.requestId` | String | - | ID for the request - UUID format |
| `assignSecondaryIpsResponse.returnCode` | String | - | Response code |
| `assignSecondaryIpsResponse.returnMessage` | String | - | Response message |

### Response status codes

For information about the response status codes common to all Server APIs, see [Server response status codes](/docs/en/compute-vserver#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The response example is as follows:

```
{
  "assignSecondaryIpsResponse": {
    "totalRows": 1,
    "networkInterfaceList": [
      {
        "networkInterfaceNo": "70***6",
        "networkInterfaceName": "nic-70***6",
        "subnetNo": "3***4",
        "deleteOnTermination": true,
        "isDefault": true,
        "deviceName": "eth0",
        "networkInterfaceStatus": {
          "code": "SET",
          "codeName": "Configuring"
        },
        "instanceType": {
          "code": "VSVR",
          "codeName": "Server (VPC)"
        },
        "instanceNo": "10*****18",
        "ip": "10.0.10.6",
        "macAddress": "F2:**:**:**:**:AC",
        "enableFlowLog": false,
        "accessControlGroupNoList": [
          "1***1"
        ],
        "networkInterfaceDescription": "",
        "secondaryIpList": [
          "10.0.10.11",
          "10.0.10.8"
        ]
      }
    ],
    "requestId": "7c0d1b29-****-****-****-876342a60d6f",
    "returnCode": "0",
    "returnMessage": "success"
  }
}
```