RouterOS dans Proxmox ?

Hi there

In Proxmox, I installed RouterOS 7.6 X86 with a level 1 license

From the Windows 10 VM, I can still browse the internet while the Firewall is running and I don't understand why?

In my PVE / Network I have:
eno1
vmbr0
vmbr999 (Enable Yes)

In RouterOS

ethern1 = vmbr0
ethern2 = vmbr999

In my Windows VM
Network Device = vmbr999


Does this have anything to do with the level 1 license?

If someone has a tutorial to explain how to move VMs behind RouterOS.
Thanks

Thanks