US Patent No. 9,294,477

MEDIA ACCESS CONTROL ADDRESS SECURITY


Patent No. 9,294,477
Issue Date March 22, 2015
Title Media Access Control Address Security
Inventorship Michael K. Bugenhagen, Olathe, KS (US)
Assignee Sprint Communications Company L.P., Overland Park, KS (US)

Claim of US Patent No. 9,294,477

1. A method of operating an access interface system to interface between a local area network and a service provider network,
the method comprising:
receiving data traffic transmitted from an originating device over a virtual private network (VPN), wherein the data traffic
contains a media access control (MAC) address of a device along a path between the access interface system and the originating
device;

determining if the MAC address is associated with the VPN;
transmitting the data traffic to the local area network if the MAC address is associated with the VPN; and
blocking the data traffic from transfer to the local area network if the MAC address is not associated with the VPN.