Patent ID: 8594084
Filing Date: 2013-11-26
Classification: H04L,H04W

Abstract:
1. A network routing device for connecting to computer network devices, comprising: a housing enclosing a circuit configured for connecting a plurality of external network devices to a network; a non-volatile memory connected to the circuit; and a switch connected to the circuit and configured to switch the circuit between different operational states, a first operational state wherein the circuit is configured to permit connections to all of the plurality of external network devices then connected to the circuit in response to the switch being in the first operational state, to receive MAC addresses for all of the plurality of external network devices then connected to the circuit, and to store the MAC addresses in the non-volatile memory as authorized MAC addresses for all of the plurality of external devices then connected to the circuit in response to the switch being in the first operational state so long as the switch is in the first operational state without further approval, and a second operational state wherein the circuit is configured to only allow connections with external network devices corresponding to the MAC addresses stored in the non-volatile memory when the switch was in the first operational state and to refuse connections to new external network devices not having an authorized MAC address stored in the non-volatile memory.