How many Internet-connected nodes do you have? If you want to link them using tunnels, you should be able to do that using the Nightly Build firmware which has configurable tunnel limits. Run it on a node with ≥ 64mb of memory, like a Mikrotik hAP ac lite or GL.iNet AR750 (128mb memory). Here's a link to the AREDN online documentation explaining how many tunnel clients you might expect to host: https://arednmesh.readthedocs.io/en/latest/arednHow-toGuides/max_tunnel_settings.html If around 20 tunnel clients is not enough for your network, then you could have your tunnel server itself be a client to another tunnel server that hosts the rest of your Internet-connected nodes.
How many Internet-connected nodes do you have? If you want to link them using tunnels, you should be able to do that using the Nightly Build firmware which has configurable tunnel limits. Run it on a node with ≥ 64mb of memory, like a Mikrotik hAP ac lite or GL.iNet AR750 (128mb memory). Here's a link to the AREDN online documentation explaining how many tunnel clients you might expect to host: https://arednmesh.readthedocs.io/en/latest/arednHow-toGuides/max_tunnel_settings.html If around 20 tunnel clients is not enough for your network, then you could have your tunnel server itself be a client to another tunnel server that hosts the rest of your Internet-connected nodes.