CreateDefaultVpc-Virtual Private Cloud(VPC)-阿里云帮助中心

Creates a default virtual private cloud (VPC).

Operation description

When you call this operation to create a default VPC, note the following items:

After a default VPC is created, you cannot modify its CIDR block, but you can add secondary IPv4 CIDR blocks.
Each default VPC supports up to 300,000 private network addresses for cloud resources, and you cannot increase this quota.
After a default VPC is created, the system automatically creates a vRouter and a route table.
Each default VPC supports up to three user CIDR blocks. If multiple user CIDR blocks overlap, the CIDR block with the shorter mask takes effect. For example, if you specify 10.0.0.0/16 and 10.0.0.0/24, 10.0.0.0/16 takes effect.
The CreateDefaultVpc operation is asynchronous. After you send the request, the system returns an instance ID, but the default VPC is not yet created and the background creation task is still running. You can call the DescribeVpcAttribute operation to query the creation status of the default VPC:
- If the default VPC is in the Pending state, the default VPC is being configured.
- If the default VPC is in the Available state, the default VPC is available.
The CreateDefaultVpc operation does not support concurrent creation of default VPCs in the same region.
Each region can have only one default VPC.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

vpc:CreateDefaultVpc

create

*VPC

acs:vpc:{#regionId}:{#accountId}:vpc/*

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the default VPC. You can call the DescribeRegions operation to query the region ID.	cn-hangzhou
Ipv6CidrBlock	string	No	The IPv6 CIDR block of the default VPC. Note This parameter is required when EnableIpv6 is set to true.	2408:XXXX:346:b600::/56
EnableIpv6	boolean	No	Specifies whether to enable the IPv6 CIDR block. Valid values: false (default): disabled. true: enabled.	false
ResourceGroupId	string	No	The resource group ID.	rg-acfmystnjq4****
ClientToken	string	No	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 client token can contain only ASCII characters. Note If you do not specify this parameter, the system automatically uses the RequestId of the API request as the ClientToken. The RequestId of each API request is unique.	123e4567-e89b-12d3-a456-426655440000

Response elements

Element	Type	Description	Example
	object	The ID of the created default VPC.
VpcId	string	The ID of the created default VPC.	vpc-bp15zckdt37pq72zv****
VRouterId	string	The ID of the vRouter automatically created after the default VPC is created.	vrt-bp1lhl0taikrteen8****
RequestId	string	The request ID.	0ED8D006-F706-4D23-88ED-E11ED28DCAC0
RouteTableId	string	The ID of the route table automatically created after the default VPC is created.	vtb-bp1q1uirugzb1x32m****

Examples

Success response

JSON format

{
  "VpcId": "vpc-bp15zckdt37pq72zv****",
  "VRouterId": "vrt-bp1lhl0taikrteen8****",
  "RequestId": "0ED8D006-F706-4D23-88ED-E11ED28DCAC0",
  "RouteTableId": "vtb-bp1q1uirugzb1x32m****"
}

Error codes

HTTP status code	Error code	Error message	Description
400	TOKEN_PROCESSING	Action is processing.
400	InvokeError	instance quota rule invoke error.	Failed to get rule data, please wait zai shi
400	InvalidParameter	Specified CIDR block is not valid
400	ResourceNotAvailable	Resource you requested is not available in this region or zone.
400	InvalidVpcName.Malformed	Specified VPC name is not valid.
400	InvalidVpcDiscription.Malformed	Specified VPC description is not valid.
400	QuotaExceeded.Vpc	VPC quota exceeded.	The number of VPCs in this account has reached the upper limit.
400	ResourceNotAvailable.Vpc	Resource you requested is not available in this region or zone.
400	InvalidUserCidr.Quota	Specified UserCidr number is greater than 3.
400	InvalidUserCidr.Malformed	Specified UserCidr overlapping in of 100.64.0.0/10.	The user CIDR block that you specify overlaps with 100.64.0.0/10.
400	InvalidResourceGroupId	The specified ResourceGroupId does not exist.	The specified resource group ID does not exist.
400	IllegalParam.Ipv6CidrBlock	%s
400	OperationFailed.IPv6CidrNotReserved	%s
400	MissingParam.EnableIpv6	%s
400	OperationUnsupported.Ipv6Feature	%s
400	IllegalParam.ZoneId	%s
400	OperationFailed.DefaultVpcExist	%s
400	InvalidRegionId.NotFound	Specified value of "regionId" is not supported.
500	InternalError	The request processing has failed due to some unknown error.
403	Forbbiden	User not authorized to operate on the specified resource.	User not authorized to operate on the specified resource.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.