A VPN Is a secure tunnel INSIDE your network.. it allows remote devices to make local connections. The only thing outside your LAN is the VPN Server.. once your establish the link your on the local network just like you plugged into your local switch.
everything on the network should be accessible once the VPN is connected.. remote desktops, printers, cameras, file servers, everything! think of a VPN link as a WiFi/Network port connection, but instead of stringing a thousand miles of network cable you just transit the internet instead.
I am connected to my Work VPN right now from my home, and every machine in the office is avilable to me just as if I was sitting at my desk downtown.