This topic provides best practices for purchasing and using elastic IP addresses (EIPs) protected by Anti-DDoS Pro/Premium. You can purchase EIPs protected by Anti-DDoS Pro/Premium to protect your services.
Limits on using EIPs protected by Anti-DDoS Origin Basic
By default, Anti-DDoS Origin Basic can mitigate up to 5 Gbit/s of DDoS attacks. The free mitigation threshold varies based on the region. For more information, see View the thresholds that trigger blackhole filtering in Anti-DDoS Origin Basic.
Descriptions
Alibaba Cloud provides EIPs protected by Anti-DDoS Pro/Premium, which can mitigate DDoS attacks at the Tbit/s level.
You do not need to perform additional configurations for Anti-DDoS Pro/Premium or change your service IP addresses when you use EIPs protected by Anti-DDoS Pro/Premium. EIPs protected by Anti-DDoS Pro/Premium are ideal for scenarios that require high security and low latency, such as large-scale gaming and important livestreaming activities.

Billing
Only pay-as-you-go EIPs support Anti-DDoS Pro/Premium. You are charged a security protection fee after you purchase an EIP protected by Anti-DDoS Pro/Premium. The following figure shows the billable items of EIPs protected by Anti-DDoS Pro/Premium.
For more information about the bandwidth fee or data transfer fee of a pay-as-you-go EIP, or the billing rules of EIP configuration fees, see Pay-as-you-go EIPs.
For more information about the billing rules of security protection fees, see Billing.
NoteThe security protection fee is charged additionally and does not affect the billing of EIPs.
Limits
Only pay-as-you-go EIPs support Anti-DDoS Pro/Premium
You can enable Anti-DDoS Pro/Premium only when you purchase an EIP. After you purchase an EIP for which Anti-DDoS Origin Basic is enabled, you cannot upgrade Anti-DDoS Origin Basic to Anti-DDoS Pro/Premium.
The following regions support EIPs integrated with Anti-DDoS Pro/Premium.
Area
Region
China
China (Beijing), China (Zhangjiakou), China (Hangzhou), China (Shanghai), and China (Hong Kong)
Asia Pacific
Philippines (Manila), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), and Indonesia (Jakarta)
Europe & Americas
US (Virginia), US (Silicon Valley), Germany (Frankfurt), and UK (London)
Use methods
Click Anti-DDoS Origin (Pay-as-you-go) to activate Anti-DDoS Origin (pay-as-you-go) for the Alibaba Cloud account with which you want to purchase EIPs protected by Anti-DDoS Origin.
If Anti-DDoS Origin (pay-as-you-go) is already activated, skip this step.
WarningAnti-DDoS Origin (pay-as-you-go) is activated on a monthly basis for at least 30 days. You cannot deactivate the service within 30 days after the service is activated. After you activate Anti-DDoS Origin (pay-as-you-go) and add a service to be protected, the billing starts. For more information about the billing rules of security protection fees, see Billing.
Purchase an EIP protected by Anti-DDoS Pro/Premium. For more information, see Apply for an EIP.
On the buy page:
Billing Method: Select Pay-As-You-Go.
Security Protection: Select Anti-DDoS (Enhanced).
Optional: Log on to the Traffic Security console. On the page, view the usage. You can also click Change Bandwidth Specification to apply for an adjustment to the bandwidth.