A management controller includes a first data communication interface for communicating with a first network interface, a second data communication interface for communicating with a second network interface, and a processor. The first network interface provides a first network interface mode that permits a processing system to access a network, an operating system-to-management controller (OS-to-MC) pass-through mode that permits the management controller to access the processing system, and a network-to-management controller (Net-to-MC) pass-through mode that permits the management controller to access the network. The second network interface permits the management controller to access a management station. The management controller provides a common Media Access Control address and a common Internet Protocol address to the first data communication interface and to the second data communication interface without causing conflict on the network.