Hello
The LAN Is very simply as in fig1.
Gateway Is the rut955 with ip 12.12.0.1 , subnet 24, Dhcp Is the rut955, there Is not a DNS server dedicated in this LAN, via Dhcp i put 8.8.8.8 and 8.8.4.4 on the connected client.
There Is a SIM card on board, everything works fine.
I have also tryed to make rut955 DNS server (put 12.12.0.1 insted of 8.8.8.8) on Dhcp option. It works and Is passed to clients. But still DNS forwarding(fig 2) not work.
If It Is more Simple...how to do a hosts file? This tolopogy Is enough?
Thanks