Here's my situation. I have a PLC (192.168.15.123) sitting on my network with no gateway programmed into it. The gateway is literally blank. I myself do not have the ability to program a gateway into this plc.
I have a PFsense router in place (192.168.15.1) on the network. The pfsense router and the plc can ping each other without issue since they are on the same local network/subnet.
I have a technician a few states away that needs to be able to access this plc from his laptop that has specific Rockwell software installed. We do not have a copy of this software and we're trying to avoid a $4k purchase.
I've configured openvpn on the pfsense router and i can connect from home just fine. I can communicate with everything on the 192.168.15.x network except this plc - because the plc doesn't have a gateway.
Does anyone have any suggestions on...