I'm trying to make SMA LCS tool work through openVPN.
The hardware Inverter Manager permits to manage the inverters. The LCS tool, is the only windows application (no other OS) which permits to interact with the inverter manager. It's the way I can get extracted data from the solar plant generation I need, and don't want to go on LAN each time I need to get them.
On the LAN of a solar plant, I have a GSM router which doesn't have a static IP (LAN IP 192.168.0.1). I have a raspberry Pi on the plant which makes me able to connect remotely to the LAN with reverse SSH. The LCS tool seems to:
- Discover the the inverter manager through sending every 20sec a broadcast packet as I saw with wireshark on UDP port 1414, first I don't understand why it does it through this port, the inverter manager is a linux machine on a Moxa.
- Then it seems to send requests to the postgresql database (I don't have the credentials of course) to export the data to a CSV.
- To map with ssh tunnels on another linux machine of my office LAN the postgresql, ssh and 1414 ports, which seem to be the ones used by the LCS tool, it doesn't work, I don't get any device into the LCS tool
- Create an openVPN connection with an openVPN server on the raspberry Pi and an openVPN client on the windows 10 office machine (172.16.10.155). This is working through a tunnelled SSH TCP connection on port 1194 (
ssh -L 1194:localhost:1194 my_plant_rpi). Unfortunately, when doing that, the LCS tool is still sending the broadcast requests to the LAN of my office's interface AND subnet. I tried to set a bridge as suggested in some posts, but more than disconnecting my plant connection after closing it, It didn't work more than that either.
Any idea * how to manage that the windows machine of my office could be more seen as into the LAN of the plant? * Or how to make the LCS tool able to discover the inverter manager which has the 192.168.0.68 IP into the LAN of the plant through the win10 machine of my office?
I'm really lost on the solutions or ways to do that...
Thx in advance, any help or suggestion would be greatly appreciated.