0

I can't find documentation about the protocol used when a computer wants to reach a network with 802.1x.

RADIUS client (switch, access point) use UDP/1812-1813 to communicate with RADIUS server. How does computer (at this point with no IP) and RADIUS client communicate? Is there some ARP traffic? Is local link used ?

I tried to look for this information on Google and used Wireshark, I really have no clue at the moment.

Thanks a lot.

setenforce 1
  • 928
  • 5
  • 7
  • AFAIK they use [EAP](https://en.wikipedia.org/wiki/Extensible_Authentication_Protocol) initiated by the client transmitting intermittent EAP-Requests. – Reaces Aug 28 '15 at 11:51
  • Which OSI layer is it? – Konrad Gajewski Aug 28 '15 at 11:57
  • 802.1x uses EAP over LAN (EAP over IEEE 802) - http://en.wikipedia.org/wiki/IEEE_802.1X – Hyppy Aug 28 '15 at 14:05
  • @KonradGajewski : That is the point I think. – setenforce 1 Aug 28 '15 at 15:45
  • Wrong manip : I pressed enter. @KonradGajewski : That is the point I think. I am looking for the Layer 3 protocol in use. For what I can see, EAP is somehow SSL / TLS like, not a layer 3 protocol. Although, i thought it was just some layer 7 thing, which it is not, thanks Reaces and Hyppy : I have read these wiki again, asking myself if EAP was a layer 3 protocol. If I understand properly, EAPOL is the layer 3 protocol, and is using MAC address and MAC multicast to send messages. – setenforce 1 Aug 28 '15 at 15:56

0 Answers0