Creates a virtual private cloud (VPC).

Description

When you call this operation, follow these rules:

  • You can specify only one CIDR block for a VPC. The CIDR block must be 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, or their subnets, and the subnet mask must be 8 to 24 bits in length. The default value is 172.16.0.0/12.
  • When you create a VPC, its CIDR block cannot be modified.
  • Each VPC can use 60,000 private IP addresses for the Alibaba Cloud services. The quota cannot be increased.
  • After you create a VPC, a VRouter and a route table are automatically created.
  • A maximum of three client-side CIDR blocks can be added to a VPC. If a client-side CIDR block includes another client-side CIDR block, the one with the shorter subnet mask takes effect. For example, if both 10.0.0.0/8 and 10.1.0.0/16 are specified, only 10.0.0.0/8 takes effect.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes CreateVpc

The operation that you want to perform. Set the value to CreateVpc.

RegionId String Yes cn-hangzhou

The ID of the region to which the VPC belongs. You can call the DescribeRegions operation to query the ID of the region to which the VPC instance belongs.

CidrBlock String No 172.16.0.0/12

The CIDR block of the VPC. You can use the following CIDR blocks or their subnets as the CIDR blocks of your VPC:

  • 172.16.0.0/12 (default)
  • 10.0.0.0/8
  • 192.168.0.0/16
Ipv6CidrBlock String No 2408:4004:0:6axx::/56

The IPv6 CIDR block of the VPC.

EnableIpv6 Boolean No false

Specifies whether to enable the IPv6 CIDR block. Valid values:

  • false (Default): disables IPv6 CIDR blocks.
  • true: enables IPv6 CIDR blocks.
VpcName String No abc

The name of the VPC.

The name must be 2 to 128 characters in length and can contain letters, digits, periods (.), underscores (_), and hyphens (-). It must start with a letter or a Chinese character and cannot start with http:// or https://.

Description String No This is my first Vpc.

The description of the VPC.

The description must be 2 to 256 characters in length. It must start with a letter or a Chinese character and cannot start with http:// or https://.

ResourceGroupId String No rg-acfmxazb4ph6aiy****

The ID of the resource group to which the instance belongs.

DryRun Boolean No false

Specifies whether to precheck this request only. Valid values:

  • true: sends a check request without creating any VPC instance. The system checks whether the required parameters are set, and verifies the request format and the service limits. If the check fails, the corresponding error message is returned. If the check is passed, the DryRunOperation error code is returned.
  • false (default): A check request is sent, and a 2XX HTTP status code is returned. After the check, a VPC is created.
UserCidr String No 189.16.0.0/12

The user CIDR block. Separate multiple CIDR blocks with commas (,). Up to three CIDR blocks are supported.

For more information, see What is a user CIDR block in CIDR block FAQ.

ClientToken String No 123e4567-e89b-12d3-a456-426655440000

The client token that is used to ensure the idempotence of the request. You can use the client to generate the value, but you must ensure that it is unique among different requests. The ClientToken can only contain ASCII characters and cannot exceed 64 characters in length. For more information, see How to ensure idempotence.

Response parameters

Prameter Type Example Description
VpcId String vpc-bp15zckdt37pq72zv****

The ID of the created VPC.

VRouterId String vrt-bp1lhl0taikrteen8****

The ID of the VRouter automatically created by the system after the VPC is created.

RouteTableId String vtb-bp145q7glnuzdv****

The ID of the route table automatically created by the system after the VPC is created.

RequestId String 0ED8D006-F706-4D23-88ED-E11ED28DCAC0

The ID of the request.

ResourceGroupId String rg-acfmxazb4ph6aiy****

The ID of the resource group to which the VPC instance belongs.

Examples

Sample requests

https://vpc.aliyuncs.com/?Action=CreateVpc
&RegionId=cn-hangzhou
&<Common request parameters>

Sample success response

XML format

<CreateVpcResponse>
      <ResourceGroupId>rg-acfmxazb4ph****</ResourceGroupId>
      <RequestId>8B2F5262-6B57-43F2-97C4-971425462DFE</RequestId>
      <RouteTableId>vtb-bp1krxxzp0c2****</RouteTableId>
      <VRouterId>vrt-bp1jcg5cmxjbl9xgc****</VRouterId>
      <VpcId>vpc-bp1qpo0kug3a20qqe****</VpcId>
</CreateVpcResponse>

JSON format

{
    "ResourceGroupId": "rg-acfmxazb4ph****",
    "RequestId": "8B2F5262-6B57-43F2-97C4-971425462DFE",
    "RouteTableId": "vtb-bp1krxxzp0c29****",
    "VRouterId": "vrt-bp1jcg5cmxjbl9xgc****",
    "VpcId": "vpc-bp1qpo0kug3a20qqe****"
}

Error codes

HTTP status code Error code Error message Description
404 InvalidRegionId.NotFound Specified value of "regionId" is not supported. The error message returned because the specified region ID does not exist. Check whether VPC is available in the region.
400 InvalidParameter Specified CIDR block is not valid The error message returned because the specified CIDR block is invalid.
400 ResourceNotAvailable Resource you requested is not available in this region or zone. The error message returned because VSwitches cannot be created in the current region or zone.
400 InvalidVpcName.Malformed Specified VPC name is not valid. The error message returned because the format of the VPC name is invalid.
400 InvalidVpcDiscription.Malformed Specified VPC description is not valid. The error message returned because the format of the VPC description is invalid.
403 Forbbiden User not authorized to operate on the specified resource. The error message returned because you are not authorized to perform this operation on the specified resource.
400 QuotaExceeded.Vpc VPC quota exceeded. The error message returned because the number of VPCs for the account has reached the upper limit.
400 ResourceNotAvailable.Vpc Resource you requested is not available in this region or zone. The error message returned because the resource you requested is not available in this region or zone.
400 InvalidParameter Specified UserCidr invalid format. The error message returned because the format of the user CIDR block is invalid.
400 InvalidParameter Specified UserCidr Subnet mask is not valid . The error message returned because the subnet mask of the user CIDR block is invalid.
400 InvalidUserCidr.Quota Specified UserCidr number is greater than 3. The error message returned because the quota of Usercidr has reached the limit.
400 InvalidUserCidr.Malformed Specified UserCidr overlapping in of 100.64.0.0/10. The error message returned because the UserCidr overlaps with 100.64.0.0/10.
500 InternalError The request processing has failed due to some unknown error. The error message returned because unknown errors have occurred.

For a list of error codes, visit the API Error Center.