Some say that you learn by your mistakes. Well, yes, that time I learned I shouldn’t mess with routing on a router. Some weeks ago I was trying to convert a TP-Link TL-WR841ND I own to a pure network bridge. NOT routed mode, just forwarder. Well, evething was fine in my brain until I managed to configure the router the way I had imagined. After some lines of iptables rules everything worked perfectly and I was happy with it until I realized I was locked out of the router itself. Everything coming from the WAN port was blindly forwarded to the LAN ports (WiFi was off because it is off by default). I could not longer access the router’s web UI and SSH server and all I got was a simple network hub with two antennas for decoration.