DisassociateSubnetCidrBlock - Amazon Elastic Compute Cloud


Disassociates a CIDR block from a subnet. Currently, you can disassociate an IPv6 CIDR block only. You must detach or delete all gateways and resources that are associated with the CIDR block before you can disassociate it.

Request Parameters

For more information about required and optional parameters that are common to all actions, see Common Query Parameters.


The association ID for the CIDR block.

Type: String

Required: Yes

Response Elements

The following elements are returned by the service.


Information about the IPv6 CIDR block association.

Type: SubnetIpv6CidrBlockAssociation object


The ID of the request.

Type: String


The ID of the subnet.

Type: String


For information about the errors that are common to all actions, see Common client error codes.



This example disassociates the IPv6 CIDR block from the subnet.

Sample Request

https://ec2.amazonaws.com/?Action=DisassociateSubnetCidrBlock &AssociationId=subnet-cidr-assoc-3aa54053 &AUTHPARAMS

Sample Response

<DisassociateSubnetCidrBlockResponse xmlns="http://ec2.amazonaws.com/doc/2016-11-15/"> <subnetId>subnet-5f46ec3b</subnetId> <ipv6CidrBlockAssociation> <ipv6CidrBlock>2001:db8:1234:1a00::/64</ipv6CidrBlock> <ipv6CidrBlockState> <state>disassociating</state> </ipv6CidrBlockState> <associationId>subnet-cidr-assoc-3aa54053</associationId> </ipv6CidrBlockAssociation> </DisassociateSubnetCidrBlockResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: