By default, Alibaba Cloud provides basic protection capacity for resources that have public IP addresses configured. These resources include Elastic Compute Service (ECS) instances, Server Load Balancer (SLB) instances, Elastic IP (EIP) instances, and Web Application Firewall (WAF) assets. If the throughput of a DDoS attack is more than the default protection capacity of the resource, we recommend that you purchase Anti-DDoS Origin Enterprise instance. Anti-DDoS Origin Enterprise uses all protection capacity of a region where the public IP address resides to defense against the attacks. This ensures business continuity.
Background information
Prerequisites
Before activating Anti-DDoS Origin Enterprise, you need to confirm the following information:
- The IP address that you want to protect.
- The region where the IP address resides.
Note Anti-DDoS Origin is not available in all regions. Before you activate Anti-DDoS Origin, ensure that Anti-DDoS Origin is available in the region where an IP address that you want to protect resides. For more information about supported regions where you can activate Anti-DDoS Origin Enterprise, see What is Anti-DDoS Origin?.