Hi, I am trying to set up port forwarding for UDP 6000-6009 on my Archer C7 runnning
OpenWrt 18.06.2 r7676-cddd7b4c77 / LuCI openwrt-18.06 branch. However, when testing using https://www.ipfingerprints.com/portscan.php, the ports are shown as closed (I've selected UDP scan). In terms of troubleshooting,
tcpdump -pnvvi eth0.2 port 6000 does show the received packets, so it seems as though my ISP isn't blocking it.
I've set up the port forwards via the GUI (Network > Firewall > Port Forwards) and am stuck with how to resolve this issue. Any assistance is greatly appreciated.