To avoid your Anti-DDoS Pro back-to-source IP segments from being blocked or being subject to traffic restrictions by the origin, you can add the Anti-DDoS Pro back-to-source IP segments to the whitelist of your origin’s firewall or other host security protection software.

Follow these steps to view the Anti-DDoS Pro back-to-source IP segments.
  1. Log on to the Anti-DDoS Pro console.
  2. Go to theAccess > Website page.
  3. Click Back-to-source CIDR block in the upper right corner of the page to view all the back-to-source IP segments of Anti-DDoS Pro.
  4. You can add the corresponding Anti-DDoS Pro back-to-source IP segments to the whitelist of your origin’s firewall or other host security protection software, based on the lines you use.