Hello again @egc, excuse me if I take advantage of this topic again. Finally, I fixed the incompatibility and I installed pbr-luci-app. However, now I can't see tun1 interface in the available interfaces in pbr:
From ifconfig, I see that tun1 is running properly, but it is not listed in the Interface dropdown list.
As you might remember, I followed this guide to set up the OpenVPN client. Since I'm on the Snapshot version of OpenWRT, I did not set up an explicit OpenVPN interface, but I just attached tun0 to the WAN covered devices.
Is there a way make pbr manage this traffic?