Cloudflare show Real IP

[Fibea]

Hello community,

is there a way to retrieve the "real" IP address from the HTTP request headers when using Cloudflare?

The OPNsense live log only shows the known Cloudflare addresses, but not the real visitor IP.

I want to use the CrowdSec plugin to block malicious IP's, but obviously this wont work if they are obfuscated with Cloudflare.