An elastic IP address (EIP) is a public IP address that you can purchase and use as an independent resource. You can apply for a new EIP, a released EIP, or a contiguous EIP group.
Operations
Apply for a new EIP
Recover a released EIP
You can apply for an EIP that is released by your Alibaba Cloud account within the last seven days by specifying the IP address or ID of the EIP.
If the EIP or static public IP address that you want to recover is assigned to another Alibaba Cloud account, locked due to security reasons, or recycled, your application fails. You cannot recover the public IP addresses of ECS instances or CLB instances that are deployed in classic networks.
- Recover an EIP that is released more than seven days ago.
- Recover the static public IP address of an ECS instance.
- You can recover EIPs at most 20 times per month. To recover EIPs more than 20 times, request a quota increase.
Apply for a contiguous EIP group
You can apply for a contiguous EIP group to facilitate network management. A contiguous EIP group consists of contiguous EIPs. Contiguous EIP groups are similar to standard EIPs. You can associate contiguous EIP groups with cloud resources in VPCs, such as ECS instances, internal-facing CLB instances, internal-facing Application Load Balancer (ALB) instances, secondary ENIs, NAT gateways, and HAVIPs. After you associate a contiguous EIP group with a cloud resource, the cloud resource can use the EIPs in the contiguous EIP group for communication.
- Only users who are included in the whitelist can apply for a contiguous EIP group.
To use the feature, submit a ticket.
Note Alibaba Cloud provides a limited number of contiguous EIP groups. After you submit a ticket, Alibaba Cloud reviews your application. After your application is approved, you can apply for a contiguous EIP group.
- You cannot separately release EIPs in a contiguous EIP group. If you want to release an EIP in a contiguous EIP group, you must release all EIPs in the contiguous EIP group.
- The following table describes the differences between contiguous EIPs and standard
EIPs.
Item Contiguous EIP Standard EIP Billing method Only the pay-as-you-go billing method is supported. The subscription and pay-as-you-go billing methods are supported. Billing method switching You cannot switch the billing method from pay-as-you-go to subscription. You can switch the billing method from pay-as-you-go to subscription. Billable items In addition to the billable items of standard EIPs, you are charged a specification fee based on the number of contiguous EIPs. For more information about specification fees, submit a ticket. You are not charged a specification fee.
References
- AllocateEipAddress: applies for an EIP.
- AllocateEipAddressPro: applies for a specified EIP.
- AllocateEipSegmentAddress: applies for a contiguous EIP group.