Packet formats

EAP packet format

Figure 21 shows the EAP packet format.

Figure 21: EAP packet format

EAPOL packet format

Figure 22 shows the EAPOL packet format.

Figure 22: EAPOL packet format

Table 5: Types of EAPOL packets

Value

Type

Description

0x00

EAP-Packet

The client and the network access device uses EAP-Packets to transport authentication information.

0x01

EAPOL-Start

The client sends an EAPOL-Start message to initiate 802.1X authentication to the network access device.

0x02

EAPOL-Logoff

The client sends an EAPOL-Logoff message to tell the network access device that it is logging off.