Configuring and Changing a Floating IP Address

Scenarios

You can change floating IP addresses after migrating on-premises databases or other cloud databases to RDS.

Constraints

After a floating IP address is changed, the domain name needs to be resolved again. This operation takes several minutes and may interrupt database connections. Therefore, you are advised to change a floating IP address during off-peak hours.

Configuring a Floating IP Address

When you create a DB instance, select a VPC and subnet on the Create DB Instance page. Then, a floating IP address will be automatically assigned to your instance.

Changing a Floating IP Address

You can change the floating IP address of an existing DB instance.

Log in to the management console.
Click in the upper left corner and select a region and a project.
Click Service List. Under Database, click Relational Database Service. The RDS console is displayed.
On the Instance Management page, click the target DB instance.
In the Connection Information area on the Basic Information page, click Change next to the Floating IP Address field.
In the displayed dialog box, enter a new floating IP address and click OK.

An in-use IP address cannot be used as the new floating IP address of the DB instance.