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Anti-DDoS:DescribeDestinationPortEvent

Last Updated:Feb 02, 2026

Queries the number of request packets received by the destination ports of the attacked IP address that is protected by Anti-DDoS Proxy.

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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

yundun-ddoscoo:DescribeDestinationPortEvent

list

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

Region

string

Yes

The region in which your service is deployed. Valid values:

  • cn: a region in the Chinese mainland.

  • cn-hongkong: a region outside the Chinese mainland.

cn

EventType

string

Yes

The type of the attack event that you want to query. Valid values:

  • defense: attack events that trigger traffic scrubbing.

  • blackhole: attack events that trigger blackhole filtering.

defense

StartTime

integer

Yes

The beginning of the time range to query. The value is a UNIX timestamp. Unit: seconds.

Note

This UNIX timestamp must indicate a point in time that is accurate to the minute.

1720059000

Ip

string

Yes

The IP address of the attacker.

203.107.XX.XX

Range

integer

Yes

The number of destination ports to return. The ports are sorted in descending order of the number of received request packets. By default, the first 10 ports are returned.

2

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

9E7F6B2C-03F2-462F-9076-B782CF0DD502

PortList

array<object>

The ports.

object

The information about the port.

DstPort

string

The destination port.

80

InPkts

integer

The number of request packets received by the destination port.

8760950

Examples

Success response

JSON format

{
  "RequestId": "9E7F6B2C-03F2-462F-9076-B782CF0DD502",
  "PortList": [
    {
      "DstPort": "80",
      "InPkts": 8760950
    }
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.