Communication between two APIPA computers without DHCP Server

On the last Saturday, I and my friend are trying to connect two computers directly using a USB cable and start communication between these two computers without the help of any external DHCP server. As I mentioned in my previous post we cannot use an ordinary USB cable to connect two computers directly. It may burn the USB port.

[ To know more about it please follow the link below. ]

In this project, we avoid using the router or any other DHCP servers. As we are not using the Ethernet adapters we cannot set any static IP address. So without the presence of external DHCP server and static IP address our both computers will get APIPA from Windows Operating System.

[ To know more about APIPA please click on the link below. ]

So the IP address our computers got was a 169.254.X.X range. Fortunately, the IP address gained by our computers were in the range 169.254.1.X and it started to communicate with each other.

It is sure that APIPA computers can communicate with each other as their subnet mask is (Class B address). So as the subnet rules say the network address of APIPA is and the broadcast address is Any address comes in between this range can communicate with each other. Because it is a private IP address we cannot use APIPA to get the Internet connection to our computers. For Local networks and Intranet APIPA is enough.