This setup allows a primary router, (the “SSH Client”) to control a secondary router (the “SSH Host”), from the command-line, through an encrypted (tunnel) connection.
FreshTomato includes Dropbear, an SSH client/server program. Dropbear can generate an encryption KeyPair that offers passwordless connections. A command is run on the primary router which generates a public key. That Public Key must then be entered into the secondary router’s Authorized Keys field, in the SSH Daemon section of the Admin Access menu.
This can be useful, for example:
Follow these steps to generate a Keypair and establish an SSH tunnel:
This example will enable/disable the eth1 5Ghz WiFi interface on the secondary router. (Temperature is shown only when the interface is enabled).