Connect a cable to the serial port of your router and open a terminal on your monitoring machine. You should be then able to control your Bering router from that console.

One application you can use to connect to your router's serial port is minicom, but you'll need to change the default settings since you won't be talking to a modem. As root, launch 'minicom -s'. Change the speed (in serial port setup) to 19200. Then change the modem init string (in modem and dialing) to "~^M~". Save the settings as something other than df1 (I use "leaf"), quit, and relaunch (not as root) using 'minicom leaf'.