I am trying to connect my QNAP NAS to the router over the WAN Port, to access it from my PC which is connected to the LAN Port.
How do I configure OpenWRT so the traffic is allowed between LAN and WAN?
The NAS has the given IP: 10.0.0.80
Router IP: 192.168.1.1
I hope someone can help me, because I am very new on this topic.
Don't do that, get a switch or connect to one of the LAN ports..
If you are connected as stated, you should be able to reach the NAS currently.
The firewall should already be configured to allow traffic from LAN to WAN, as this is the default configuration.
(Moved to Installing and Using OpenWrt - Network and Wireless Configuration.)