I have a VPN connection betweem my office and my home. I connect via this vpn connection. At Home I have an external HD : WD MyBookWorld that i can ping but can't map a folder. The adrress of this HD is 192.168.1.7. The firewall is 192.168.1.1. I tried to map a shared folder of a pc (192.168.1.10) and it works. So I don't know how to access my data on this HD over the VPN connection.