Your average Ethernet cable and ports would not be wired right.
A crossover cable would be required to just use Ethernet ports without a hub or router. More at http://en.wikipedia.org/wiki/Auto-MDIX
I have HP Pavilion DV3 laptop running on Windows 7 Home premium. I tried setting up peer-to-peer net work by connecting Ethernet ports of laptop and another computer. After clicking on "Network" tab in Libraries screen, I could not go beyond naming my laptop as "homegroup computer". The Laptop did not recognise the other computer. How do I go further? Can Cnet community guide me?