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    ENS:AuthorizeSecurityGroup

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    ENS:AuthorizeSecurityGroup

    Last Updated:Aug 18, 2026

    Calls AuthorizeSecurityGroup to configure inbound access permissions for a security group, allowing or denying other devices from sending inbound traffic to instances in the security group.

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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

    ens:AuthorizeSecurityGroup

    update

    *All Resource

    *

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    IpProtocol

    string

    Yes

    The transport-layer protocol. The value is case-sensitive. Valid values:

    • tcp

    • udp

    • icmp

    • gre

    • all: all protocols are supported

    Valid values:

    • all :

      all protocols.

    • tcp :

      TCP protocol.

    • udp :

      UDP protocol.

    • gre :

      GRE protocol.

    • icmp :

      ICMP protocol.

    all
    PortRange

    string

    Yes

    The range of port numbers for the transport-layer protocol of the security group. Valid values:

    • TCP/UDP protocol: valid values are 1 to 65535. Separate the start port and the end port with a forward slash (/). Correct example: 1/200. Incorrect example: 200/1.

    • ICMP protocol: -1/-1.

    • GRE protocol: -1/-1.

    • If IpProtocol is set to all: -1/-1.

    22/22
    SecurityGroupId

    string

    Yes

    The security group ID.

    sg-bp67acfmxazb4ph***
    Policy

    string

    No

    Settings for access permissions. Valid values:

    • accept: accepts access.

    • drop: deny access without returning a rejection message.

    Default value: accept.

    Valid values:

    • drop :

      deny.

    • accept :

      allow.

    accept
    Priority

    integer

    No

    The priority of the security group rule. Valid values: 1 to 100.

    Default value: 1.

    1
    SourceCidrIp

    string

    Yes

    The source IP address range. CIDR blocks and IPv4 addresses are supported.

    Default value: none.

    10.0.XX.XX/8
    SourcePortRange

    string

    No

    The range of port numbers for the transport-layer protocol of the source security group. Valid values:

    • TCP/UDP protocol: valid values are 1 to 65535. Separate the start port and the end port with a forward slash (/). Correct example: 1/200. Incorrect example: 200/1.

    • ICMP protocol: -1/-1.

    • GRE protocol: -1/-1.

    • If IpProtocol is set to all: -1/-1.

    22/22

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    The request ID.

    473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

    Examples

    Success response

    JSON format

    {
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E"
}

    Error codes

    HTTP status code

    Error code

    Error message

    Description
    400 MissingParameter The input parameter that is mandatory for processing this request is not supplied.
    400 NoPermission Permission denied.
    400 InvalidParameter.%s The specified field %s invalid. Please check it again.
    400 InvalidParameter The errorMessage is %s. Please check it again.
    400 InvalidSecurityGroupId.NotFound The specified SecurityGroupId does not exist. The specified security group ID does not exist.
    400 SecurityGroupRuleConflict.Duplicated The SecurityGroup rule already exists. duplicate security group rules.
    400 AuthorizationLimitExceed The limit of authorization records in the security group reaches. The number of security group rules exceeds the limit.
    400 ens.interface.error An error occurred while calling the API.
    400 CallInterface Call Interface Happen Error. An error occurred when you call the operation.

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.