Enabling Network Connectivity

The CDM Cluster and a Cloud Service Are in the Same Region, VPC, Subnet, and Security Group

The CDM cluster can communicate with the cloud service through an intranet.

The CDM Cluster and a Cloud Service Are in the Same Region and VPC, but in Different Subnets or Security Groups

You must configure routing rules and security group rules to enable communications between the CDM cluster and the cloud service. For details about how to configure routing rules, see Configuring Routing Rules. For details about how to configure security group rules, see Configuring Security Group Rules.

The CDM Cluster and a Cloud Service Are in the Same Region but Different VPCs

You can create a VPC peering connection to enable them to communicate with each other. For details about how to configure a VPC peering connection, see VPC Peering Connection

If a VPC peering connection is created, the peer VPC subnet may overlap with the CDM management network. As a result, data sources in the peer VPC cannot be accessed. You are advised to use the Internet for cross-VPC data migration, or contact the administrator to add specific routes for the VPC peering connection in the CDM background.

The CDM Cluster and a Cloud Service Are in Different Regions

You need to use the Internet or Direct Connect to enable them to communicate with each other. When using the Internet, ensure that an EIP has been bound to the CDM cluster, the security group of CDM allows outbound traffic from the host where the off-cloud data source is located, the host where the data source is located can access the Internet, and the connection port has been enabled in the firewall rules.

Other Scenarios

An enterprise project may also affect the communications between the CDM cluster and other cloud services. The CDM cluster can communicate with a cloud service only if they have the same enterprise project.