tencent cloud

Overview

If the access type is VPN gateway, you need to create a VPC and VPN and establish a tunnel between the VPN and IDC for interconnection.

In this scenario, your VPC is "TomVPC", your subnet is "subnet A", and the IP range of “subnet A” is 192.168.1.0/24. The created VPN gateway is "TomVPNGW", the public IP of the VPN gateway is 203.195.147.82, the subnet IP range of your IDC is 10.0.1.0/24, the public IP of the VPN gateway in your IDC is 202.108.22.5, and the IP address of the source database server is 10.0.1.8.

Directions

Configure as instructed in Overview.

Subsequent Steps

1. After the VPN is connected to your IDC, on the DTS task page, select VPN Access.

   Parameter	Description	Sample Value
   VPN Gateway	Name of the VPN gateway created in the VPC.	TomVPNGW
   VPC	Name of your VPC.	TomVPC
   Subnet	Name of the subnet of your VPC.	Subnet A
   Host Address	IP address of the source database server.	10.0.1.8
   Port	Port used by the source database. Below are the default ports for common databases (if they are modified, enter the actual ports): MySQL: 3306 SQL Server: 1433 PostgreSQL: 5432 MongoDB: 27017 Redis: 6379	3306

2. Click Test Connectivity. If the test fails, troubleshoot as follows:
   • The Telnet test fails.
     In the created VPC ("TomVPC" in this example), purchase a CVM instance and ping the source database server address from it:
     • If the address is unpingable:
       • The source database has a security group or firewall configured.
       • The SNAT IP address is blocked in the source database.
       • The port settings of the source database are incorrect.
     • If the address is pingable:
       Submit a ticket for assistance.
   • The Telnet test is passed, but the database connection fails.
     • The migration account is not properly authorized. Authorize it again as instructed in the corresponding scenario in data migration and data sync.
     • The account or password is incorrect.