tencent cloud



最后更新时间:2022-08-24 17:36:35

1. API Description

Domain name for API request: vpc.tencentcloudapi.com.

This API is used to apply for private IPs for an ENI.

  • An ENI can only be bound with a limited number of IP addresses. For more information about resource limits, see ENI Use Limits.
  • You can apply for a specified private IP. It cannot be a primary IP because the primary IP already exists and cannot be modified. The private IP address must be an idle IP in the subnet to which the ENI belongs.
  • You can apply for more than one secondary private IP on the ENI. The API will return the specified number of secondary private IPs in the subnet IP range.


    This API is async. You can call the DescribeVpcTaskResult API to query the task result. When the task is completed, you can continue other tasks.

A maximum of 100 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: AssignPrivateIpAddresses.
Version Yes String Common Params. The value used for this API: 2017-03-12.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
NetworkInterfaceId Yes String The ID of the ENI instance, such as eni-m6dyj72l.
PrivateIpAddresses.N No Array of PrivateIpAddressSpecification The information on private IP addresses, of which you can specify a maximum of 10 at a time. You should provide either this parameter or SecondaryPrivateIpAddressCount, or both.
SecondaryPrivateIpAddressCount No Integer The number of newly-applied private IP addresses. You should provide either this parameter or PrivateIpAddresses, or both. The total number of private IP addresses cannot exceed the quota. For more information, seeENI Use Limits.

3. Output Parameters

Parameter Name Type Description
PrivateIpAddressSet Array of PrivateIpAddressSpecification The detailed information of the Private IP.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Applying for private IPs for an ENI

Input Example

&<Common request parameters>

Output Example

    "Response": {
        "PrivateIpAddressSet": [
                "PrivateIpAddress": ""
                "PrivateIpAddress": ""
        "RequestId": "f23d1450-ed00-4442-98d4-be409e625e6c"

5. Developer Resources


TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
FailedOperation.NetDetectTimeOut Network probe timed out. Please retry later.
InvalidParameterValue.DuplicatePara The parameter value already exists.
InvalidParameterValue.LimitExceeded The parameter value exceeds the limit.
InvalidParameterValue.Malformed Invalid input parameter format.
InvalidParameterValue.Range The parameter value is not in the specified range.
InvalidParameterValue.Reserved The parameter value is retained by the system.
LimitExceeded Quota limit is reached.
ResourceInUse The resource is occupied.
ResourceInsufficient Insufficient resources.
ResourceNotFound The resource does not exist.
UnsupportedOperation Unsupported operation.
UnsupportedOperation.InvalidState Invalid resource status.
UnsupportedOperation.MutexOperationTaskRunning The resource mutual exclusion operation is being executed.
UnsupportedOperation.ResourceMismatch The resource ID entered does not match with any resource bound with the IP. Check and try again.




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