Hi Hari, yes, but I am not sure what the COM port should be here. I have an actual RS232 connector in the port, COM1 (I think). Then some PC000:00/00 or something like that, and the ttyS_56_0 which is the GC100. So, not sure what to fill in here!
EDIT: Hari you mention ttyUSBxxx, but I have no such thing. Very strange. Do you think it is useful to update the serial ports? The router has been reloaded many times already. When does the ttyUSB appear in the list? lsusb shows the device, so I am curious why I don't have that entry.