Patent ID: 8416754
Filing Date: 2013-04-09
Classification: H04L

Abstract:
1. A method comprising: receiving a request to establish a data communication connection, wherein the request indicates a network address of a sender; determining whether the sender is local or remote with respect to a receiver of the request based, at least in part, on the network address of the sender and a network address of the receiver, wherein the sender is local with respect to the receiver if the network address of the receiver and the network address of the sender identify a same network, and the sender is remote with respect to the receiver if the network address of the receiver and the network address of the sender identify different networks; determining whether a location response flag indicates remote or local; allowing the data communication connection to be established between the sender and the receiver if the location response flag indicates local and the sender was determined to be local with respect to the receiver; allowing the data communication connection to be established between the sender and the receiver if the location response flag indicates remote and the sender was determined to be remote with respect to the receiver; preventing the data communication connection from being established between the sender and the receiver if the location response flag indicates remote and the sender was determined to be local with respect to the receiver; and preventing the data communication connection from being established between the sender and the receiver if the location response flag indicates local and the sender was determined to be remote with respect to the receiver.