From: Nambi Appachigounder (nambi_gct@yahoo.co.in)
Date: Fri Feb 16 2007 - 05:36:41 ART
Hi Stefan,
EAPOL packets follows immdeiately after the ethernet
header.They are identified with a type value of
0x888e.
When the switch receives the the frame it removes the
ethernet header and puts the EAPOL packet(i.e EAPOL
frame payload) inside the radius header.
This is my understanding.Somebody please correct me if
I am wrong.
Regards,
Nambi
--- Stefan Grey <examplebrain@hotmail.com> wrote:
> Hello guys,
>
> client- Switch- RADIUS server.
>
> I have a couple of questions about the encapsulation
> and packet structure in
> the 802.1x (EAP) authentication process.
>
> 1) When I have read about this in the book was
> written that: client sends
> the EAPOL frame to the Switch. Switch strips the
> Ethernet header and
> reformats it so that it can be sent to the RADIUS
> server. What does it
> mean?? Which fields are added?? What happens with
> the frame??
>
> 2) As I have googled about the EAP packet
> structure.... As I understand the
> frame between client and switch doesn't have the
> normal Ethernet frame
> form.... but it seems that a specific EAP frame
> format is used is it true
> (like in ppp)??
>
> I ask because I have nowhere found the answer on
> this questions.
> Any info about the structure of the frames, packets
> during this process is
> very needed. Which fields there are at first which
> are removed and added
> than??
> Thank you very much.
>
>
This archive was generated by hypermail 2.1.4 : Thu Mar 01 2007 - 07:38:46 ART