UnassociateVpcCidrBlock - Virtual Private Cloud - Alibaba Cloud Documentation Center

Usage notes

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. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters


Parameter	Type	Required	Example	Description
RegionId	String	Yes	ch-hangzhou	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.
VpcId	String	Yes	vpc-o6wrloqsdqc9io3mg****	The ID of the VPC from which you want to delete a secondary CIDR block.
SecondaryCidrBlock	String	No	192.168.0.0/16	The secondary IPv4 CIDR block to be deleted. Note You must set one of the SecondaryCidrBlock and Ipv6CidrBlock parameters.
IPv6CidrBlock	String	No	2408:XXXX:0:6a::/56	The secondary IPv6 CIDR block to be deleted. Note You must set one of the Ipv6CidrBlock and SecondaryCidrBlock parameters.
Action	String	Yes	UnassociateVpcCidrBlock	The operation that you want to perform. Set the value to UnassociateVpcCidrBlock.

Response parameters


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

Examples

Sample requests

http(s)://[Endpoint]/?RegionId=ch-hangzhou
&VpcId=vpc-o6wrloqsdqc9io3mg****
&SecondaryCidrBlock=192.168.0.0/16
&IPv6CidrBlock=2408:XXXX:0:6a::/56
&Action=UnassociateVpcCidrBlock
&Common request parameters

Sample success responses

XML format

HTTP/1.1 200 OK
Content-Type:application/xml

<UnassociateVpcCidrBlockResponse>
    <RequestId>C1221A1F-2ACD-4592-8F27-474E02883159</RequestId>
</UnassociateVpcCidrBlockResponse>

JSON format

HTTP/1.1 200 OK
Content-Type:application/json

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

Error codes


HttpCode	Error code	Error message	Description
400	OperationFailed.Ipv6Gateway	The operation is failed because of ipv6Gateway is in use.	The error message returned because the IPv6 is still in use and the operation failed.

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