I have added to the Gallery simple block diagrams of the enclosures on each end of the link.

The Eienstein enclosure is on my end and is responsible for acting as the WiFi Access Point and serving up the OpenVPN connection across the WiFi link to Rosen.

Rosen is the far end, acting as the Client, connecting to the Eienstein AP and the OpenVPN client. It is also responsible for assigning IP addresses, Gateways and DNS via DHCP to the remote lan.

Once I have the link working, I will add web caching to Rosen to try and reduce load across the WiFi link, and also (if possible) locally caching any media from a NFS or SAMBA share on my local LAN.