I WAS successfully installed Android-x86-v3.2-eeepc in VirtualBox for a while. And it is a good method to help me to debug USB host applications on Android. The installation of such configuration is:
C:\>adb connect 192.168.56.101
unable to parse 192.168.56.101 as <host>:<port>
C:\>adb connect 192.168.56.101:5554
unable to connect to 192.168.56.101:5554
To connect Android virtual machine with adb follow these step
On Android home screen, press ALT+F1 (Left alt). This will open a terminal with root access.
Inside the terminal, type
dhcpcd eth0. Execute the command twice, if you get an error or no result. This will give you an IP addresss. Now press ALT+F7 for close the terminal.
Verify your IP address using the command
ping <your IP Address>
From the android terminal, type
adb tcpip 5555. This will restart adb in tcpip mode.
From your main OS terminal, type
adb connect <your IP address>