Use AllocateVpcIpv6Cidr to reserve an IPv6 CIDR block - Virtual Private Cloud - Alibaba Cloud - Virtual Private Cloud

Operation description

To allocate an IPv6 CIDR block to a virtual private cloud (VPC), perform the following steps:

Call the AllocateVpcIpv6Cidr operation to reserve the IPv6 CIDR block.
To allocate an IPv6 CIDR block to an existing VPC, call the AssociateVpcCidrBlock operation. Set RegionId, VpcId, and IPv6CidrBlock to the IPv6 CIDR bock, and set IpVersion to ipv6. To allocate an IPv6 CIDR block when you create a VPC, call the CreateVpc operation. Set RegionId and Ipv6CidrBlock to the IPv6 CIDR block, and set EnableIpv6 to true.

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the VPC. You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
ClientToken	string	No	The client token that ensures the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. The token can contain only ASCII characters. Note If you do not specify this parameter, the system automatically uses the request ID as the client token. The request ID may be different for each request.	123e4567-e89b-12d3-a456-426655440000
Ipv6Isp	string	No	The type of IPv6 CIDR block. Valid values: BGP (default) ChinaMobile ChinaUnicom ChinaTelecom Note If your Alibaba Cloud account is allowed to use single-ISP bandwidth, valid values are: ChinaTelecom, ChinaUnicom, and ChinaMobile. You can reserve only one IPv6 CIDR block of each type. After a reserved IPv6 CIDR block of a type is allocated to a VPC, you can reserve another IPv6 CIDR block of the type.	BGP
RegionId	string	Yes	The region ID of the VPC. You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
AddressPoolType	string	No	The type of the IPv6 address pool. Set the value to custom. Note This parameter is required.	custom
Ipv6CidrBlock	string	No	The IPv6 CIDR block that you want to reserve.	2408:XXXX:0:a600::/56

Element	Type	Description	Example
	object
Ipv6CidrBlock	string	The IPv6 CIDR block that is reserved.	2408:XXXX:0:a600::/56
RequestId	string	The request ID.	D20C13EA-2584-53BC-8393-69DE6D98EFF1

Success response

JSON format

{
  "Ipv6CidrBlock": "2408:XXXX:0:a600::/56",
  "RequestId": "D20C13EA-2584-53BC-8393-69DE6D98EFF1"
}

HTTP status code	Error code	Error message	Description
400	OperationUnsupported.Ipv6Feature	The IPv6 feature is not supported in the region.	This region does not support IPv6.
400	UnsupportedFeature.Ipv6Isp	The Ipv6Isp feature is not supported.	The specified IPv6 ISP is not supported.
400	IllegalParam.AddressPoolType	The specified addressPoolType is invalid.	The specified address pool type is invalid.
400	ResourceNotEnough.Ipv6Cidr	The specified resource ipv6 cidr is not enough.	Insufficient IPv6 CIDR block resources.
400	IllegalParam.Ipv6Cidr	The specified Ipv6CidrBlock is invalid.	Ipv6CidrBlock is set to an invalid value.
400	Unavailable.Ipv6Cidr	The specified resource ipv6 cidr is not available.	The specified IPv6 CIDR block is unavailable.
400	IllegalParam.CidrBlock	The param of cidrBlock is illegal.	The error message returned because the value of the cidrBlock parameter is invalid.

See Error Codes for a complete list.

See Release Notes for a complete list.