DescribeUdpReflect - Anti-DDoS - Alibaba Cloud Documentation Center

Queries the source ports of UDP traffic that are filtered out by the filtering policies for UDP reflection attacks on an Anti-DDoS Pro or Anti-DDoS Premium instance.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Association operation
yundun-ddoscoo:DescribeUdpReflect	Read	DdosCoo acs:yundun-ddoscoo:{#regionId}:{#accountId}:*	none	none

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the instance to query. NoteYou can call the DescribeInstanceIds operation to query the IDs of all instances.	ddoscoo-cn-i7m25564****
RegionId	string	No	The region ID of the instance. Valid values: cn-hangzhou: Chinese mainland, which indicates an Anti-DDoS Pro instance. This is the default value. ap-southeast-1: outside the Chinese mainland, which indicates an Anti-DDoS Premium instance.	cn-hangzhou

All Alibaba Cloud API operations must include common request parameters. For more information about common request parameters, see Common parameters.

For more information about sample requests, see the "Examples" section of this topic.

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	F97A8766-FB4D-411A-9CD5-2CFF701B592F
UdpSports	array	An array consisting of the source ports of the UDP traffic that are filtered out by the filtering policies for UDP reflection attacks.
	string	The source port of the UDP traffic that is filtered out by the filtering policies for UDP reflection attacks.	17

Examples

Sample success responses

JSONformat

{
  "RequestId": "F97A8766-FB4D-411A-9CD5-2CFF701B592F",
  "UdpSports": [
    "17"
  ]
}

Error codes

For a list of error codes, visit the Service error codes.