What Can an Elastic IP Be Used for?
EIP is suitable for the following scenarios:
- Disaster Recovery. We strongly recommend using Elastic IP for disaster recovery. When one of your servers cannot provide services normally, you can unbind the Elastic IP from this server and rebind it to a healthy server to quickly restore service.
- Reserving specific public IP. When you need to reserve a specific public IP in your account, you can convert it to an Elastic IP, and after binding/unbinding it to a device, you can use that IP for public network access.
As long as you do not perform the Release operation, the EIP will remain in your account. - Other special cases. When you have other special situations that require IP replacement, you can convert a regular public IP to an Elastic IP and achieve the replacement by binding/unbinding the Elastic IP. However, EIP resources are valuable, and there are quota limits per region for each account. We recommend that you plan and use them reasonably.
How Much does an Elastic IP Cost?
- The fee displayed in the console represents the fee for a full hour of idleness. Currently, the charging for Elastic Public IP (Elastic IP) can be precise to the second. For multiple bindings/unbindings, the duration of the unbound status will be charged after being accumulated in seconds.
- If the total duration of vacancy is less than one hour, the resource occupation fee will be charged on a pro-rata basis.
When Will an Elastic IP Be Charged?
Currently, operations related to Elastic IP include application, binding, unbinding, and release. Since IP resources are valuable, Elastic IP only charges a small amount of resource usage fee when it is unbound from the device.
How to Stop Charging for Elastic IP?
- When you no longer need the Elastic IP that is being charged, you can release it. After the Elastic IP is released, you will no longer be charged.
See Releasing EIP for more information. - If you need to keep an Elastic IP and stop charging for it, you can bind it to a device (CVM, NAT), and the bound Elastic IP will no longer be charged.
How to Access a Public Network If the CVM Does Not Have an Ordinary Public IP?
If you did not purchase a public IP when you purchased the machine or the public IP has been returned, you can apply for an elastic IP in the Elastic IP console and then bind it to your machine for public network access.
Can the Public IP Address Be Changed?
You can change the public IP address of your CVM. See Changing Instance in Public IP Address for more information.
How do I keep a public IP unchanged?
When you need to reserve a specific public IP in your account, you can convert it to an Elastic IP. After binding it to a device, you can use this IP for public network access. As long as you do not perform the release operation, the Elastic IP remains in your account.
See Elastic IP for related operations.
Can EIP be converted back to a regular public IP?
EIP cannot be converted back to a regular public IP.