I am running Rancher 2.5.7 ontop of k3s on Fedora CoreOS.
I have tried a couple different versions (Found several different things via google):
But none of these seem to work. I have found if I whitelist the internal container network (10.42.1.x), the whitelist works. But if I whitelist my home internal network (172.20.30.x), I get forbiddens. So it seems to only see the kubernetes internal network, even when coming from a computer on my internet home LAN.