Viewing 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.

Only floating IPv4 addresses can be changed.

Procedure

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.

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

1. Log in to the management console.
2. Click in the upper left corner of the page and choose Databases > Relational Database Service.
3. On the Instances page, click the target DB instance.
4. In the Connection Information area on the Basic Information page, click Change in the Floating IP Address field.
5. Enter an available IP address and click OK.

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