Apologies if this is a silly question, or answered before, but I'm new to this.
I have the following outdoor router that runs OpenWrt: https://www.outdoorrouter.com/product/cat6-uk-outdoor-4g-mimo-router-wifi-300-yard/
The router has an address of 192.168.30.1
My network has about 30 devices, running on 192.168.1.1-200 DHCP currently provided by a wired broadband router, plus some static addresses above 200.
I can access the router fine though it's wireless interface, when it serves the client a 30.xx address from it's own DHCP.
I'm trying to integrate it so that the main network can use it as a gateway.
I've corresponded with the very helpful manufacturer, whose advice comes down to
"Mode#2 -- When you connect the EZR30 to the LAN port of your main router, the EZR30 router will obtain an IP address 192.168.1.xxx from your main router and activate the WAN port on the interfaces list. In this mode, you can find the EZR30 outdoor router device on the list of connected hosts on your main router's system.
This does not seem to work, how could the devices communicate, as they are on different subnets? What would the gateway address be for the main network? Is there a better way?
Hope this makes sense, as the device would be a great solution to our awful landline in the country.