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DocumentationTencent Cloud FirewallAPI DocumentationOther APIsCreateNatFwInstanceWithDomain

CreateNatFwInstanceWithDomain

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Last updated: 2025-10-30 21:33:47

1. API Description

Domain name for API request: cfw.intl.tencentcloudapi.com.

This API is used to create a firewall instance with domain name (The Region parameter is required).

A maximum of 20 requests can be initiated per second for this API.

We recommend you to use API Explorer
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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: CreateNatFwInstanceWithDomain.
Version Yes String Common Params. The value used for this API: 2019-09-04.
Region No String Common Params. This parameter is not required for this API.
Name Yes String Firewall instance name
Width Yes Integer Bandwidth
Mode Yes Integer Mode. 1: use existing; 0: create new
NewModeItems No NewModeItems Parameter passed for the Create New mode. Either NewModeItems or NatgwList is required.
NatGwList.N No Array of String NAT gateway list for the Using Existing mode. Either NewModeItems or NatgwList is required.
Zone No String Primary zone. The default zone is selected if it is empty.
ZoneBak No String Secondary zone. The default zone is selected if it is empty.
CrossAZone No Integer Remote disaster recovery. 1: enable; 0: disable; empty: disable by default
IsCreateDomain No Integer 0: not create; 1: create
Domain No String Required for creating a domain name
FwCidrInfo No FwCidrInfo IP range of the firewall

3. Output Parameters

Parameter Name Type Description
CfwInsId String NAT instance info
Note: This field may return null, indicating that no valid value was found.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Creating a firewall instance with domain name

This example shows you how to apply the "Use existing" mode.

Input Example

POST / HTTP/1.1
Host: cfw.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateNatFwInstanceWithDomain
<Common request parameters>

{
    "Name": "test",
    "Width": 20,
    "Mode": 0,
    "CrossAZone": 1,
    "NatGwList": [
        "nat-xxx",
        "nat-xxx"
    ],
    "Zone": "ap-shanghai-4",
    "ZoneBak": "ap-shanghai-3"
}

Output Example

{
    "Response": {
        "CfwInsId": "xxx",
        "RequestId": "3c140219-cfe9-470e-b241-907877d6fb03"
    }
}

Example2 CreateNatFwInstanceWithDomain

This example shows you how to apply the "Create New" mode.

Input Example

POST / HTTP/1.1
Host: cfw.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateNatFwInstanceWithDomain
<Common request parameters>

{
    "Name": "test",
    "Width": 20,
    "Mode": 1,
    "CrossAZone": 1,
    "NewModeItems": {
        "VpcList": [
            "vpc-xxx"
        ],
        "Eips": [
            "xx.xx.xx.xx"
        ],
        "AddCount": 1
    },
    "Zone": "ap-shanghai-4",
    "ZoneBak": "ap-shanghai-3"
}

Output Example

{
    "Response": {
        "CfwInsId": "xxx",
        "RequestId": "3c140219-cfe9-470e-b241-907877d6fb03"
    }
}

5. Developer Resources

SDK

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
AuthFailure CAM signature/authentication error.
DryRunOperation DryRun operation, which means the DryRun parameter is passed in yet the request will still be successful.
FailedOperation Operation failed.
InternalError Internal error.
InvalidParameter Invalid parameter.
InvalidParameterValue Invalid parameter value.
LimitExceeded The quota limit has been reached.
MissingParameter Missing parameter.
OperationDenied Operation denied.
RequestLimitExceeded The number of requests exceeds the frequency limit.
ResourceInUse The resource is occupied.
ResourceInsufficient Insufficient resource.
ResourceNotFound The resource does not exist.
ResourceUnavailable The resource is unavailable.
ResourcesSoldOut The resources have been sold out.
UnauthorizedOperation Unauthorized operation.
UnknownParameter Unknown parameter error.
UnsupportedOperation Unsupported operation.
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