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.
IEEE 802.1X Media
EAP data is first encapsulated in EAPOL frames between the Supplicant and Authenticator, then re-encapsulated between the Authenticator and the Authentication server using RADIUS or Diameter.
Sequence diagram of a 802.1X progression
Other websites
- IEEE page on 802.1X
- IEEE standard can be retrieved at no charge through the GetIEEE802 program: [1] Archived 2012-10-06 at the Wayback Machine
- Using 802.1x port authentication to control who can connect to your network Archived 2010-12-07 at the Wayback Machine
- 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 Archived 2007-08-13 at the Wayback Machine FreeRADIUS for 802.1x
- WIRE1x Archived 2010-04-12 at the Wayback Machine
- Deployment of IEEE 802.1X for Wired Networks Using Microsoft Windows
- Steve Riley's article on the 802.1x vulnerabilities
