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    Elastic Compute Service:ModifyForwardEntry

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    Elastic Compute Service:ModifyForwardEntry

    Last Updated:Jun 18, 2026

    Note

    This API has been deprecated. We recommend migrating to Vpc(2016-04-28) - ModifyForwardEntry 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:ModifyForwardEntry

    update

    *ForwardTable

    acs:vpc:{#regionId}:{#accountId}:forwardtable/{#ForwardTableId}

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    ForwardTableId

    string

    Yes

    ForwardEntryId

    string

    Yes

    ExternalIp

    string

    No

    ExternalPort

    string

    No

    InternalIp

    string

    No

    InternalPort

    string

    No

    IpProtocol

    string

    No

    RegionId

    string

    Yes

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    Examples

    Success response

    JSON format

    {
  "RequestId": ""
}

    Error codes

    HTTP status code

    Error code

    Error message

    Description
    400 InvalidExternalIp.Malformed The specified ExternalIp is not a valid IP address. The specified public IP address is invalid.
    400 InvalidInternalIp.Malformed The specified InternalIp is not a valid IP address. The specified internal IP address is invalid.
    400 InvalidExternalPort.Malformed The specified ExternalPort is not a valid port.
    400 InvalidInternalPort.Malformed The specified InternalPort is not a valid port. The specified InternalPort parameter is invalid.
    400 Forbidden.DestnationIpOutOfVpcCIDR The specified Destination Ip is Out of VPC CIDR.
    400 InvalidProtocal.ValueNotSupported The specified IpProtocol does not support. The specified IpProtocol parameter is invalid.
    400 IncorretForwardEntryStatus Some Forward entry status blocked this operation.. The DNAT entry is in a state that does not support the current operation.
    400 QuotaExceeded Forward entry quota exceeded in this route table. The maximum number of the forward entry is exceeded.
    400 ForwardEntry.Duplicated The specified ExternalIp, IpProtocol, ExternalPort,InternalIp, InternalPort is duplicated
    400 InvalidIp.NotFound The specified ip does not exist.
    400 IncorretStatus.ForwardEntry The Specified forwardEntry is not stable status, can not operation
    400 IllegalParam.AnyPortNotZero any port port must be zero.
    404 InvalidRegionId.NotFound The specified RegionId does not exist in our records. The specified RegionId parameter does not exist. Check whether the service is available in the specified region.
    404 InvalidForwardEntryId.NotFound Specified forward entry ID does not exist The specified DNAT entry ID does not exist.
    404 InvalidExternalIp.NotFound Specified External Ip address does not found on the VRouter The specified ExternalIp address does not exist on the VRouter.
    404 InvalidForwardTableId.NotFound Specified forward table does not exist.

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.