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An important issue to bring up is that the two routers will not be able to communicate with each other via their LAN IPs if they have LAN IP addresses in different subnets. If that is the case, there are still a few options you can take without changing either of the routers IP addresses:
An important issue to bring up is that the two routers will not be able to communicate with each other via their LAN IPs if they have LAN IP addresses in different subnets. If that is the case, there are still a few options you can take without changing either of the routers IP addresses:
* When communicating between routers, use RUT2's WAN IP instead of its LAN IP. This will work because
* When communicating between routers, use RUT2's WAN IP instead of its LAN IP. This will work because RUT1 will lease the WAN IP address to RUT2 from its LAN network. If that is the case you chose, then don't forget to check RUT2's WAN IP after completing the '''[[Relayd#Wi-Fi_WAN|3.2.1]]''' step of this guide
* Add Static Routes to each router in the '''Network → Routing → Static Routes''' section. This must be done from both ends, i.e., you must configure a route both in RUT1 and in RUT2
The communication between RUT1 and the end devices in either network will work regardless of what RUT2's LAN IP address is.
