UnassociateVpcCidrBlock - Virtual Private Cloud - Alibaba Cloud Documentation Center

Deletes a secondary CIDR block from a virtual private cloud (VPC).

Operation description

Before you delete a secondary CIDR block from a VPC, delete the vSwitch which is created with the CIDR block. For more information, see DeleteVSwitch .
You cannot repeatedly call the UnassociateVpcCidrBlock operation to delete a secondary CIDR block from a VPC within the specified period of time.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
vpc:UnassociateVpcCidrBlock	delete	VPC acs:vpc:{#regionId}:{#accountId}:vpc/{#VpcId}	none	none

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the VPC to which the secondary CIDR block to be deleted belongs. You can call the DescribeRegions operation to query the most recent region list.	ch-hangzhou
VpcId	string	Yes	The ID of the VPC from which you want to delete a secondary CIDR block.	vpc-o6wrloqsdqc9io3mg****
SecondaryCidrBlock	string	No	The secondary IPv4 CIDR block to be deleted. Note You must set one of the SecondaryCidrBlock and Ipv6CidrBlock parameters.	192.168.0.0/16
IPv6CidrBlock	string	No	The secondary IPv6 CIDR block to be deleted. Note You must set one of the Ipv6CidrBlock and SecondaryCidrBlock parameters.	2408:XXXX:0:6a::/56

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	C1221A1F-2ACD-4592-8F27-474E02883159

Examples

Sample success responses

JSONformat

{
  "RequestId": "C1221A1F-2ACD-4592-8F27-474E02883159"
}

Error codes

HTTP status code	Error code	Error message	Description
400	OperationFailed.Ipv6Gateway	The operation is failed because of ipv6Gateway is in use.	The operation failed because the IPv6 gateway is being used.
400	InvalidVpc.NotFound	%s	-
400	IncorrectStatus.Vpc	%s	-
400	ParamExclusive.SecondaryCidrAndIpv6Cidr	%s	-
400	MissingParam.SecondaryCidrOrIpv6Cidr	%s	-
400	InvalidSecondaryCidrBlock.NotFound	%s	-
400	OperationFailed.CidrInUse	%s	-
400	InvalidIpv6CidrBlock.NotFound	%s	-
400	OperationFailed.CidrInUse	The operation failed because the CIDR block is already in use.	-
400	OperationFailed.IpV6VSwitchInuse	Operation failed because some vswitch ipv6 is in use.	-
400	MissingParam.SecondaryCidrBlockOrIpv6CidrBlock	Either SecondaryCidrBlock or Ipv6CidrBlock must be specified.	The secondary CIDR block or the IPv6 CIDR block is not specified.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2023-08-24	API Description Update. The Error code has changed	View Change Details
2023-07-10	The Error code has changed	View Change Details