Hello,
Thank you for reaching out to Devolutions Support.
Regarding your second question, yes, setting the Winbox entry host to 127.0.0.1:18291 is correct. Winbox does not have built-in Devolutions Gateway support, so it has to connect to the local listener that the Gateway Tunnel opens on your machine, which then forwards the traffic to 10.0.0.1:8291.
This is also why the dynamic port does not work. When the listener uses port 0, the port is picked when the tunnel opens, but Remote Desktop Manager currently does not pass that port on to the Winbox entry. For Winbox, the listener therefore needs a fixed local port. Since a TCP forward listener has a single destination, each device needs its own listener.
To reduce the number of objects, one Gateway Tunnel entry can contain several listeners. You could therefore use one tunnel per site or customer, with one listener per router on its own local port, and link each Winbox entry to that tunnel with its matching port.
You can refer to the following documentation article:
https://docs.devolutions.net/gateway/knowledge-base/knowledge-base-articles/devolutions-gateway-tunnel-connection-type/
I understand that having a single tunnel automatically used by all Winbox entries would be much simpler at your scale. For feature requests, I recommend visiting our forum. Each product has a dedicated Feature Request section:
https://forum.devolutions.net/forums/17/remote-desktop-manager--feature-request
Please let me know if you have any questions.
Best regards,