IEEE 802.1X

IEEE 802.1 is the name for a number of high-level protocols  for computer networks. In this context, IEEE 802.1X helps secure such a network. It defines methods to authenticate devices and to authorise the access to certain resources. A dedicated server checks information received from a "supplicant". Depending on the result of the check, access to the given resource is granted or denied. 

Other websites
 IEEE page on 802.1X 
 IEEE standard can be retrieved at no charge through the GetIEEE802 program:  
 Using 802.1x port authentication to control who can connect to your network 
 Configure RADIUS for secure 802.1x wireless LAN
 How to self-sign a RADIUS server for secure 802.1x PEAP or EAP-TTLS authentication
 Configuring  FreeRADIUS for 802.1x
 WIRE1x  
 Deployment of IEEE 802.1X for Wired Networks Using Microsoft Windows
 Steve Riley's article on the 802.1x vulnerabilities

Category:Computer protocols