@Javier Medina I have quite a history implementing firewalls and the most robust one I encountered is the BSD's packet filter (PF). Dealing with BSD/Linux routers can be expensive and troublesome. I recommended OpnSense due it's robust implementation and ease of…
You should take a look at OpnSense.
Even for small setups, we recommend using dedicated hardware for routing and firewall. The basic firewall should be good enough for your needs but there is an option for Sensei (but we recommend choosing an appropriate server for this as…
