@Dheeraj Did you install the most recent version of the library? There were some significant changes in the routing and find_parent parts of the code...
Im install the gateway sketch and Yes if i put.the.command.in the serial monitor work turning on off a led in the sensor i have but without a 0 for ack like this "2;1;1;3;2;1\n" Im use the example this "echo " (command)\n" > comXX and this config
mode com[NUMBER] BAUD=115200 PARITY=n DATA=8 STOP=1
@Yveaux Yes, example messages. Something like that - i have temperature from dht22 on one node, and i want to send this value to example node with radio id 2. Second thing, how to pick this value on radio node with id 2?