Eap Over Radius - HP 1920 Series User Manual

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EAPOL packet format
Figure 301
Figure 301 EAPOL packet format
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EAP over RADIUS

RADIUS adds two attributes, EAP-Message and Message-Authenticator, for supporting EAP
authentication. For the RADIUS packet format, see
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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.
shows the 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 103 Types of EAPOL packets
Value Type
0x00 EAP-Packet
0x01 EAPOL-Start
0x02 EAPOL-Logoff
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.
Packet body—Content of the packet. When the EAPOL packet type is EAP-Packet, the Packet body
field contains an EAP packet.
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Table 103 lists the types of EAPOL packets supported by HP
Description
The client and the network access device uses EAP-Packets to
transport authentication information.
The client sends an EAPOL-Start message to initiate 802.1X
authentication to the network access device.
The client sends an EAPOL-Logoff message to tell the network
access device that it is logging off.
"Configuring RADIUS."
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