HP 12500 Series Configuration Manual page 80

Figure 23 EAP packet format
Code—Type of the EAP packet. Options include Request (1), Response (2), Success (3), or Failure
•
(4).
Identifier—Used for matching Responses with Requests.
•
Length—Length (in bytes) of the EAP packet. The length is the sum of the Code, Identifier, Length,
•
and Data fields.
Data—Content of the EAP packet. This field appears only in a Request or Response EAP packet. The
•
Data field comprises the request type (or the response type) and the type data. Type 1 (Identify) and
type 4 (MD5-challenge) are two examples for the type field.
EAPOL packet format
Figure 24 shows the EAPOL packet format.
Figure 24 EAPOL packet format
• PAE Ethernet type—Protocol type. It takes the value 0x888E for EAPOL.
Protocol version—The EAPOL protocol version used by the EAPOL packet sender.
•
Type—Type of the EAPOL packet.
•
implementation of 802.1X.
Table 5 Types of EAPOL packets
Value
0x00
0x01
0x02
Length—Data length in bytes, or length of the Packet body. If packet type is EAPOL-Start or
•
EAPOL-Logoff, this field is set to 0, and no Packet body field follows.
Type Description
The client and the network access device uses EAP-Packets to transport
EAP-Packet
authentication information.
The client sends an EAPOL-Start message to initiate 802.1X authentication to
EAPOL-Start
the network access device.
The client sends an EAPOL-Logoff message to tell the network access device
EAPOL-Logoff
that it is logging off.
Table 5 lists the types of EAPOL packets supported by HP
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