I have the same question. I tried to set up magic packet broadcast to x.x.x.255 IP address in port forwarding, but it’s not working, see my other post here.
Next workaround, I added a static IP binding to the MAC broadcast address of FF:FF:FF:FF:FF, so I could just forward UDP 7 port (for magic packet) to that IP address and trick the router into doing a MAC broadcast this way:
I searched on the internet, and see this command can be used to add a permanent ARP entry:
ip neighbor add 192.168.8.xxx lladdr xx:xx:xx:xx:xx:xx dev ??? nud permanent
What should I insert for the “???” in the above? Should be some kind of device ID.
I’m not advanced with command line and openwrt, could someone please tell me if this will work on GL-iNet routers without problems? I can execute one simple command like that, but if something goes wrong, I will be totally lost, and I don’t want to mess up my main router.