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 used by only one cloud resource at a time.

Figure 1 Accessing the Internet using an EIP

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.

• Flexible billing

  Pay-per-use (based on bandwidth usage or amount of traffic) and yearly/monthly billing modes are available.

• Shared bandwidth

  EIPs can use shared bandwidth to lower bandwidth costs.

• Immediate use

  EIP associations, disassociations, and bandwidth adjustments take effect immediately.

Notes and Constraints

• Each EIP can be used by only one cloud resource in the same region at a time.
• An EIP that has already been bound to a cloud resource cannot be bound to another resource.
• You cannot bind or unbind EIPs if they are frozen because of unauthorized operations or account delinquency.
• The number of EIPs that you can assign varies by region. If you need more EIPs, submit a service ticket.
• If an EIP is billed by bandwidth, its maximum bandwidth can be 2000 Mbit/s (500 Mbit/s in the AP-Hong-Kong region). If an EIP is billed by traffic, its maximum bandwidth can be 300 Mbit/s.

  If you need a higher bandwidth, submit a service ticket or contact your account manager.

• Your request for increasing quota will be approved only if your account has valid orders and you are continuously using cloud resources. If you have released resources immediately after subscribing to them multiple times, your request for quota increase will be declined.
• You can only release unbound EIPs.
• You cannot buy an EIP that you have released if it is currently being used by another user.
• The price of a pay-per-use EIP includes the retention fee and the bandwidth price. If you unbind an EIP but do not release it, you will continue to be billed and the price includes the retention fee and the bandwidth price. The moment you bind an EIP to an instance, the retention fee is no longer included in the EIP price.
• If you have increased the EIP quota but you have not used the quota for a long time, HUAWEI CLOUD will reduce the quota to the default value. If you want to increase the quota again, submit another service ticket.
• If you use EIP resources in violation of applicable laws and regulations, HUAWEI CLOUD has the right to reclaim the EIP resources and stop providing services to you.
• EIPs cannot be transferred across accounts.