Last updated：2020-06-01 15:42:38
For traffic to be correctly forwarded back to the origin server, add the WAF back-to-source IPs to the whitelist of the origin server. In the following example, the origin server is located in Kingsoft Cloud.
To add WAF IPs to the whitelist of the origin server:
Add rules that contain WAF IP addresses as the source IPs.
For an SLB_WAF instance, add the following addresses:
For a cloud WAF, add the following addresses:
220.127.116.11/24 (for cn-beijing-6)
18.104.22.168/24 (for cn-shanghai-2)
The new rules are successfully added to the security group.