I need some advice on setting up a VPN. The situation is my client has a PC in his office which has retail software that dials out to 5 individual sites around the area, communicates with each of their modems in turn and polls back sales information from the day into the software. Problem being modem connection is obviously slower than possible with his broadband connection. The software can also communicate via tcp/ip, if it was possible to use the broadband connection available at each site it would make alot more sense and be a lot faster, can i create a VPN of these five sites to test and see if tcp/ip will work. Can anyone point me in the right direction.