On GL-AXT1800 how to route packets from WAN to LAN

I'm using wan port to connect two LANs. subnet1(192.168.100.0) is on WAN and subnet2(192.168.0.0) is on LAN. I'm able to access WAN devices from LAN but not vice versa.

Please refer to the upper image to allow WAN to LAN in the firewall rule, which config in those 2 subnet routers.

The subnet routers are rejected WAN -> LAN packets

Still not able to access LAN from WAN though I've set wan=>lan Forward to accept.

And how to enable ping from WAN?

And how to disable entire firewall, that should enable wan=>lan access.

BTW the firewall rules show in the above image are created by me; previously I've deleted all the rules hoping to disable the firewall. I thought the "Reset" button would restore the initial rules but it didn't!

Its probably not working because the input rule of wan is set to drop, set it to accept.

You can also delete all zones at this point, but i don't know if that breaks something in gl-inet software.

And on luci-> startup -> firewall you can disable its service and stop it.

NOT set on this AXT1800 (Main router).

It requires to set this firewall rule on the 2 subnet routers (the lower routers), means that the 192.168.100.0 router and the 192.168.0.0 router.

Since those 2 LAN (subnet) routers that rejects WAN -> LAN.

I'm unable to access LAN from WAN even if I set the input rule of wan to Accept. Its also not working even if I stop and disable the System>Startup>firewall. After stopping the firewall, I even lost access to WAN from LAN

I suspect this issue is also related to GL-AXT1800 unable to route traffic to subnet

It is also feasible to add the route rule which you posted in that thread, add it in the /etc/rc.local

But how to access LAN from WAN? My life was easier with TP-Link router!

Finally I'm able to forward traffic from WAN to LAN. I've reset the router and then in firewall wan, i've added lan to Allow forward to destinations and set Input and Forward to accept