Connecting Resources from Different Resource Pools over the Internet

Different resource pools are located in different regions with non-interoperable networks and cannot be connected through VPC peering. Currently, resources in different resources pools can be connected over the Internet based on their public IP addresses.

The following parts describe the network communication mode and how to configure the DTS instance, bind a public IP address to the source database instance, and configure network security policies.

Network Communication Mode

The following figure shows the network communication mode.

Configuring the DTS Instance

1. Purchase a public IP address.
   You can directly use an available public IP address in eSurfing Cloud. If no public IP address is available, you need to purchase a public IP address to enable Internet access for the DTS instance.

2. Configure the network type for the DTS instance.
   Select Public EIP, as shown in the following figure.
   

Bind an EIP to the source database instance and configure network security policies

1. Request an EIP and bind it to the source database instance.
   For more information, see Binding and Unbinding an EIP.

2. Configure network ACLs and security groups for the source and destination database instances.
   For more information, see Connecting Resources in the Same VPC over the VPC Network. You need to configure security group rules to allow traffic from the public IP addresses of the source database instance and the DTS instance.

3. Configure the IP address trustlist for the database.
   You need to allow the public IP address you configured for the DTS instance to remotely access the database. The method to configure an IP address trustlist for a database may vary depending on the database type. For more information, see the relevant official database documentation.