I have a client that is a small retail company. They have an Untangle router at the company office with Open VPN configured for users to connect from home. The have recently updated their POS system to a server/client model. The system runs on Windows environment. The POS systems in the store needs to connect to the POS server at the home office for PLU downloads and polling (sending sales stats back to home office). The stores all use the ISP modem/router and the company does not want to upgrade all these. We have setup OpenVPN clients on the POS system in the stores. The POS systems are able to connect to the POS server and download the PLUs and other items. The issue is with the polling. This actually happens from the server. It reaches out to the servers to download the info. The server can't see the POS systems. I can't ping any of the POS systems at any of the stores when the stores are connected to OpenVPN but the sites can all ping the POS server. Is this able to be done with OpenVPN & Untangle outside of the limits?
The company HQ has an ip scheme of 10.X.x.x and the VPN is giving out 172.x.x.x