RADIUS attribute from rfc6677
EAP-Lower-Layer
FreeRADIUS Vendor-Specific dictionary values:
1 - Wired-IEEE-802.1X 2 - IEEE-802.1X-No-Preauth 3 - IEEE-802.1X-Preauth 4 - IEEE-802.16e 5 - IKEv2 6 - PPP 7 - PANA-No-Preauth 8 - GSS-API 9 - PANA-Preauth