"By way of example and not of limitation, the NAC system 50 may include a plurality of Ethernet ports which may be operatively coupled to a plurality of networked devices thereby avoiding the need for the external hub 70. [0064] The NAC system 50 is configured using the I/O devices, e.g. keyboard, mouse and monitor, of the host computer 58 or by a networked device in the private network 56." . . . . .