Binding or Unbinding an EIP to or from a Supplementary Network Interface

Scenarios

You can bind a supplementary network interface to an EIP.

A supplementary network interface has a private IP address. You can also bind an EIP to the interface. The binding between a supplementary network interface and an EIP does not change when the network interface of the supplementary network interface is detached from an ECS and then attached to another ECS. The supplementary network interface still has its private IP address and EIP.

A network interface can have multiple supplementary network interfaces attached. If each supplementary network interface has an EIP, the ECS with the network interface attached can have multiple EIPs for flexible Internet access.

If you do not need an EIP or want to delete a supplementary network interface, you can unbind the EIP from the interface.

Binding a Supplementary Network Interface to an EIP

1. Log in to the management console.
2. Click in the upper left corner and choose Networking > Virtual Private Cloud.

   The Virtual Private Cloud page is displayed.

3. In the navigation pane on the left, choose Virtual Private Cloud > Network Interfaces.
4. On the Network Interfaces page, click Supplementary Network Interfaces tab.
5. Locate the row that contains the supplementary network interface, click Bind EIP in the Operation column, and select the EIP to be bound.
6. Click OK.

Unbinding a Supplementary Network Interface from an EIP

1. Log in to the management console.
2. Click in the upper left corner and choose Networking > Virtual Private Cloud.

   The Virtual Private Cloud page is displayed.

3. In the navigation pane on the left, choose Virtual Private Cloud > Network Interfaces.
4. On the Network Interfaces page, click Supplementary Network Interfaces tab.
5. Locate the row that contains the supplementary network interface and click Unbind EIP in the Operation column.
6. Click OK.