previously i had just router #2 connect to router #1 using wireless. If the connection breaks then the workstations connected to router #2 via wireless will loose its IP. I had found in this forum that it is what OpenWRT will do- the wireless interface will go down.
This is for a land based drone- a rc vehicle with 2 single board linux computers and IoT devices connected (currently) wireless to Router #3. Previously i had it connect wireless to router #2 but when router #2 looses (wireless) connection to router #1 then the devices will loose its ip and you cant log onto router #2 wireless.
Thats why i added Router #3. Now when router #2 looses wireless connection to Router #1, router #3 continues to function normally.
I see. Yes by using this setup you can always connect to #2 and #3, no matter if lost connection of not.
So you want to control your device connected to #3 from a pc connected to #1, right? What kind of control is it? What protocols etc.?
I think you can bridge #2#3 so that you only have two subnet, so that all devices connected to #2 and #3 has IP 192.168.43.x. One simple way to do this is that you disconnect #3’s dhcp and connect the cable to #2’s LAN and #3’s LAN directly.
Then you can open some ports in #2 so that data can be forwarded from network #1 to #2.
This [post is really good but I have another issue with my router. when I tried to connect my router it shows an error itunes sync error 54, so if you have any idea how to remove this error then please share with me.