Subnet name to be displayed.
This parameter must start and end with a number or a letter, containing 2 to 63 characters. Only letters, numbers, - and periods (.) are supported.
| | regionId | Yes | String | Region ID. | | stackType | Yes | [SubnetStackType](https://docs.console.zenlayer.com/api-reference/compute/datastructure#subnetstacktype) | Subnet IP stack type. | | cidrBlock | No | String |CIDR block of the subnet.
If the specified stack type ( stackType ) includes IPv4, this field is required. The specified CIDR block must fall within the VPC’s CIDR range.
| | ipv6Type | No | [IPv6Type](https://docs.console.zenlayer.com/api-reference/compute/datastructure#ipv6type) |Subnet IPv6 type.
If the specified stack type ( stackType ) includes IPv6, this field is required.
| | dhcpOptionsSetId | No | String | DHCP options set to be associated. | | ipv6CidrBlockId | No | String |ID of the public IPv6 CIDR block.
This field can only be specified when ipv6Type is Public.
If not specified, it will be allocated from the system's default IP pool.
| | ipv6MaskLength | No | Integer |The size of the IPv6 CIDR prefix assigned to the instance.
This parameter must be used together with the ipv6CidrBlockId parameter.
The default value is 96 if not explicitly provided.
The minimum value must be greater than or equal to the prefix of the specified ipv6CidrBlockId, and the maximum value cannot exceed 96.
Value range: \[-, 96]
| ## 3. Output Parameters | Parameter Name | Type | Description | | -------------- | ------ | --------------------------------------------------------------------------------------------------------------------- | | requestId | String |The unique request ID, which is returned for each request.
RequestId is required for locating a problem.
| | subnetId | String | Subnet ID. | ## 4. Code Example {% tabs %} {% tab title="Example" %} **Create a subnet under a VPC.**POST /api/v2/zec HTTP/1.1
Host: console.zenlayer.com
Content-Type: application/json
X-ZC-Action: CreateSubnet
Request:
{
"vpcId": "xxxx",
"regionId": "xxx",
"stackType": "IPv4_IPv6",
"ipv6Type": "Public",
"name": "XXX",
"cidrBlock": "10.0.0.0/9"
}
Response:
{
"requestId": "TBFC01FCF-6439-4530-ADBC-16809F0C3E8F",
"response": {
"requestId": "TBFC01FCF-6439-4530-ADBC-16809F0C3E8F",
"subnetId": "xxxx"
}
}