4Paul Congdon. IEEE 802, 1X Overview Port Based Network Access Control. http: //www. ieee802.org/1/files/public/docs2000/p8021XOverview. PDF.IEEE Plenary. Albuquerque, NM March 2000.
5D Carrel D Simone, et al. Method for Transmitting PPP Over Ethernet (PPPoE) (RFC2516), http: //www. priorartdatabase. com/IPCOM/000003100/.February 1999.