Binding and Unbinding an EIP

You can bind an EIP to a DB instance for public accessibility, and you can unbind the EIP from the DB instance later if needed.

To ensure that a DB instance is accessible, the security group associated with the instance must allow access to its database port. For example, if the database port is 8635, ensure that the security group allows access to the port 8635.

You can bind an EIP to a primary DB instance or a read replica only.
If a DB instance has already an EIP bound, you must unbind the EIP from the DB instance first before binding a new EIP to it.

Log in to the management console.
Click in the upper left corner of the page and choose Databases > Relational Database Service.
On the Instances page, click the DB instance name.
In the navigation pane on the left, choose Connectivity & Security. In the Connection Information area, click Bind next to the EIP field.

Alternatively, in the Connection Topology area, click Public Connection and then Bind in the connection topology.
In the displayed dialog box, all unbound EIPs are listed. Select the EIP to be bound and click OK.
On the Connectivity & Security page, check the EIP that has been bound to the DB instance.

You can also view the progress and result of binding an EIP to a DB instance on the Task Center page.

To unbind the EIP from the DB instance, see Unbinding an EIP.

Log in to the management console.
Click in the upper left corner of the page and choose Databases > Relational Database Service.
On the Instances page, click the DB instance that has an EIP bound to go to the Overview page.
In the navigation pane on the left, choose Connectivity & Security. In the Connection Information area, click Unbind next to the EIP field.

Alternatively, in the Connection Topology area, click Public Connection and then Unbind in the connection topology.
In the displayed dialog box, click OK.
On the Connectivity & Security page, check the results.

You can also view the progress and result of unbinding an EIP from a DB instance on the Task Center page.

To bind an EIP to the DB instance again, see Binding an EIP.