Patent ID: 8396065
Filing Date: 2013-03-12
Classification: H04L

Abstract:
1. A computer-implemented method, comprising: receiving an incoming data packet at a first network side of a customer premise equipment device, wherein the incoming data packet is received from a subscriber device residing on the first network side of the customer premise equipment device and the first network side of the customer premise equipment device comprises a local area network side of the customer premise equipment device; extracting a first address associated with origination of the incoming data packet, wherein the first address is source address; determining whether the first address associated with the incoming data packet matches a second address used to originate a previously received data packet at a second network side of the customer premise equipment device, wherein the second network side of the customer premise equipment device comprises a wide area network side of the customer premise equipment device and the second address is associated with a cable modem termination system; and dropping the incoming data packet if the first address matches the second address.