Updated on 2025-10-24 GMT+08:00

Configuring Cross-CIDR Access for a Replica Set

This API is used to configure cross-CIDR access for a replica set instance.

Only replica set instances are supported.

URI format
POST /v3/{project_id}/instances/{instance_id}/client-network
URI example
https://dds.ap-southeast-1.myhuaweicloud.com/v3/0549b4a43100d4f32f51c01c2fe4acdb/instances/9136fd2a9fcd405ea4674276ce36dae8in02/client-network

**Table 1** Path parameters
Name	Mandatory	Type	IN	Description
project_id	Yes	string	path	Explanation: Project ID of a tenant in a region. To obtain the project ID, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A
instance_id	Yes	string	path	Explanation: Instance ID, which can be obtained by calling the API described in Querying Instances and Details. If you do not have an instance, call the API described in Creating a DB Instance to create one. Constraints: N/A Value range: N/A Default value: N/A

**Table 2** Request header parameters
Name	Mandatory	Type	IN	Description
X-Auth-Token	Yes	string	header	Definition User token obtained from IAM. For details, see Authentication. Constraints N/A Range N/A Default Value N/A

**Table 3** Parameter description
Name	Type	Mandatory	Description
client_network_ranges	Array of strings	Yes	Definition CIDR block where the client is located Constraints NOTE: Cross-CIDR access is required only when the CIDR blocks of the client and the replica set instance are different. For example, if the client CIDR block is 192.168.0.0/16 and the replica set instance's CIDR block is 172.16.0.0/24, add the CIDR block 192.168.0.0/16 so that the client can access the replica set instance. This function is available only for replica sets. For example, if the source network segment is 192.168.0.0/xx, the value of xx must range from 8 to 32. Range N/A Default Value N/A

Configuring access across CIDR blocks for a replica set instance

{ 
    "client_network_ranges":["192.168.0.0/16"] 
}

None

For more information, see Status Code.

For more information, see Error Code.

Parent topic: DB Instance Management