For single IP instances, select the Single IP Instance tab.
For multi-IP instances, select the Multi-IP Instance tab.
2. Find the Anti-DDoS Pro instance to be bound in the list, and click Change Resource in the Operation column for the instance.
3. Select the associated device type and associated device from the pop-up box. Select VPN Gateway as the device type and select the VPN gateway you want to associate from the list.
4. Click OK.