Bridging SSH connection to serial port on the RV50

AirLink Routers
1

Hi,

The configuration I’m trying to achieve is to send wireless commands from my laptop to another device via the RV 50 modem by sending whatever the modem receives from the ssh connection to the serial connection or vice versa.

To test the connection, I am creating a ssh connection between my laptop and the modem, and then also creating a serial connection from the modem back to my laptop using a serial to USB cable.

Here is a diagram of what I am trying to accomplish:

diagram
diagram348×428 6.35 KB

If I enter anything on the ssh terminal I would like to see it on the serial terminal, or if I enter anything on the serial terminal I would like to see it on the ssh terminal.
For example if i type hello on the ssh putty terminal on my laptop, I would like to see hello appear on the serial putty terminal.

I am using firmware version 4.16.0.021.
I am currently looking at the section of the config manual for version 4.16.0 called reverse telnet/SSH which is a sub section of RS232 configuration which is a subsection of 11: Serial configuration.
I followed all of the steps but it still isn’t working.

should I be using a different configuration? or is what I am trying to do possible?

I would greatly appreciate any help.

Thanks

2

Does it have to be ssh? If not, you should consider using the TCP port forwarding to a serial port under the Serial → RS 232 Configuration → PAD.

Set Device Port, and TCP Auto Answer.

You should then be able to telnet to the device on that port and send/receive serial characters.

3

Hi,

Thanks for the reply. It does have to be SSH but the problem has been solved!

It turns out you should sign in to SSH using the sconsole username and password when connecting to enable the bridge between the SSH connection and the Serial port. Using the username: user automatically puts the modem in AT command mode which is what I was doing.