|So now we know you actually have two VPN endpoints with an encrypted tunnel between them. This would have been good information to include on your very first post. |
I want to share this VPN connection through that computer's ethernet card, to the router, and subsequently to the rest of my network. This way all internet bound traffic, within my network, travels through the VPN.
Considering your setup I would guess that your traffic leaves the tunnel (ie: becomes unencrypted) at the other end and from there goes out onto the internet? Is this correct? If yes then you already have all your traffic going out through the VPN.
I also want to be able to access the computer running the VPN from within my network.
I'm guessing that PC is located inside your house. Is there something stopping you from sitting down at it's keyboard and logging into it?
If the internet interface of that compute is on the same subnet of your LAN then you should be able to access it. If it's on a different subnet, then you won't be able to access it unless you have a router between it and your LAN with a route between the two separate subnets.