Combine three networks into a single large network
Combine three networks into a single large network
You can achieve this setup by configuring your ASUS RT-AX56U routers in a hierarchical manner. Assign each router a role based on its position: router1 manages devices behind itself, router2 bridges between router1 and router3, and router3 connects to both. Ensure mobile devices are assigned to the appropriate access points or VLANs so they can reach all three networks. This configuration is feasible and typically doesn’t exceed $200 if you upgrade to newer models.
It's definitely feasible, similar to configuring Wireguard site-to-site connections. However, I question whether the firmware on those routers can handle it. Generally, each network needs its own subnet, and you'll have to configure non-NAT Wireguard tunnels, establish static routes on the devices, and ideally add extra routes for DHCP clients through DHCP option 121. If you're unsure about these details, it might be too complex for you.