IEEE 802.1X
IEEE 802.1X defines Port-based network access control.
In the context of IEEE 802.1X, a
port is
- a port of an Ethernet switch, or
- an IEEE 802.11 Wireless LAN access point
The three main actors in 802.1X are:
| Authenticator | Enforcement of the authentication of a device that wants to access the controlled port. |
| Supplicant | Communcating the credentials to the authenticator. |
| Authentication Server | Performing authentication by checking the credentials which are forwarded by the authenticator. An authentication server is typically a RADIUS server with Extensible Authentication Protocol (EAP) support. |
Two IEEE 802.1X supplicant libraries on Windows are onex.dll and onexui.dll.
In Linux, I had some success connecting to a WLAN with
$ ip a # find interface name (for example: wlp0s20f3)
$ wpa_passphrase THESSID theSecret > /etc/wpa_supplicant.conf
$ wpa_supplicant -B -D nl80211 -i wlp0s20f3 -c /etc/wpa_supplicant.conf