EIP Overview

EIP

The Elastic IP (EIP) service enables you to use static public IP addresses and scalable bandwidths to connect your cloud resources to the Internet. EIPs can be bound to or unbound from ECSs, BMSs, virtual IP addresses, NAT gateways, or load balancers. Various billing modes are provided to meet diverse service requirements.

Each EIP can be bound to only one cloud resource and they must be in the same region.

Figure 1 Accessing the Internet using an EIP

EIP Quotas

If you want to know the number of EIPs that can be assigned in a region, see How Do I View My Quotas?

Advantages

• Flexibility

  An EIP can be flexibly associated with or disassociated from the ECS, BMS, NAT gateway, load balancer, or virtual IP address. The bandwidth can be adjusted according to service changes.

• Shared bandwidth

  EIPs can use shared bandwidth to lower bandwidth costs.

• Immediate use

  EIP binding, unbinding, and bandwidth adjustments take effect immediately.