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Elastic Compute Service:UnassociateEipAddress

Last Updated:Apr 16, 2026

Note

This API has been deprecated. We recommend migrating to Vpc(2016-04-28) - UnassociateEipAddress for enhanced functionality and continued support. While the deprecated API remains temporarily accessible, no further updates or bug fixes will be provided.

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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:UnassociateEipAddress

update

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

RegionId

string

No

The ID of the region where the EIP is located. To get the latest list of regions, call the DescribeRegions operation.

AllocationId

string

Yes

The allocation ID of the EIP.

InstanceId

string

Yes

This parameter is optional because the system automatically determines the instance ID from the provided AllocationId.

InstanceType

string

No

The type of the associated instance. Valid values:
  • EcsInstance: An ECS instance. This is the default.
  • SlbInstance: A Classic Load Balancer (CLB) instance.
  • Nat: A NAT gateway.
  • HaVip: A high-availability virtual IP address (HaVip).
  • NetworkInterface: A secondary elastic network interface.

Response elements

Element

Type

Description

Example

object

RequestId

string

The unique request ID.

Examples

Success response

JSON format

{
  "RequestId": ""
}

Error codes

HTTP status code

Error code

Error message

Description

400 IncorrectEipStatus Current elastic IP status does not support this operation. The EIP is in a state that does not support the operation.
400 InvalidInstanceId.NotFound Specified instance does not exist.
400 IncorrectInstanceStatus The current status of instance does not support this operation. The instance is in a state that does not support the current operation.
400 InvalidInstanceType.ValueNotSupported The specified value of InstanceType is not supported. The specified instance type is not supported.
400 IncorrectHaVipStatus This operation is denied because satus of the specified HaVip is neither Available nor InUse. The operation is denied because the specified HAVIP is not in the Available or InUse state.
400 OperationDenied Eip of default vpc not allow this operation The default VPC of the EIP does not support the operation.
400 InvalidParameter The specified parameter is not valid. A specified parameter is invalid.
400 Forbbiden The eip instance owener error The specified EIP requires authorization to be used. Check your permissions and try again.
400 TaskConflict The eip operate too frequent, TaskConflict.
400 InvalidBindingStatus The eip binding status invalid. The specified EIP association state is invalid.
400 Forbidden.FinancialLocked The ip business status is invalid.
400 InvalidIpStatus.HasBeenUsedBySnatTable The removed ip address has been used by snat table.
400 InvalidIpStatus.HasBeenUsedByForwardEntry The specified address has been used by forwardTable.
400 InvalidEIPStatus.BizDisabled The EIP has been locked.
400 InvalidStatus.EcsStatusNotSupport The special instance status Pending is not support operate
400 InvalidStatus.EniStatusNotSupport %s
400 InvalidStatus.SnatOrDnat Operation failed because snat or dnat in unstable status.
400 DependencyViolation.SnatEntry The specified eip is in ip pool.
400 InvalidInstance.NotVpc Bound instance is not vpc instance.
400 InvalidStatus.NotAllow Bound instance status is invalid.
404 InvalidAllocationId.NotFound Specified allocation ID is not found The specified EIP does not exist. Check whether the parameter value is correct.
404 InvalidHaVip.NotFound The specified HaVip does not exist. The specified HAVIP does not exist.
404 Forbidden.RegionNotFound Specified region is not found during access authentication.
404 OperationUnsupported.ServiceManaged Operation of resource is forbidden because this instance belongs to Service manager.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.