Select an Anti-DDoS Pro instance ID in the list on the left, such as "bgp-0000008o", and click IP Port Protection at the top on the right.
Click Set in the "Watermark Protection" block on the right to enter the watermark protection list.
Click Create to create a watermark protection rule.
After the creation is completed, a watermark protection rule will be added to the watermark protection list. You can view and configure keys by clicking Configure Key in the "Operation" column on the right.
On the key configuration page, you can view or copy keys.
On the key configuration page, you can add or delete keys. You can delete a key only if there are two keys. There can be up to two watermark keys.