1-3Control directionIn the unauthorized state, the controlled port can be set to deny traffic to and from the client or just thetraffic from the client.Currently, your device can only be set to deny traffic from the client.EAP over LANsEAPOL frame formatEAPOL, defined in 802.1X, is intended to carry EAP protocol packets between clients and devices overLANs. Figure 1-3 shows the EAPOL frame format.Figure 1-3 EAPOL frame formatPAE Ethernet type: Protocol type. It takes the value 0x888E.Protocol version: Version of the EAPOL protocol supported by the sender.Type: Type of the EAPOL frame. Table 1-1 lists the types that the device currently supports.Table 1-1 Types of EAPOL framesType DescriptionEAP-Packet (a value of 0x00)Packet for carrying authentication information, present betweenthe device and the authentication server.A packet of this type is repackaged and transferred by RADIUSon the device to get through complex networks to reach theauthentication server.EAPOL-Start (a value of 0x01) Packet for initiating authentication, present between a client andthe device.EAPOL-Logoff (a value of 0x02) Packet for the logoff request, present between a client and thedevice.Length: Length of the data, that is, length of the Packet body field, in bytes. If the value of this field is 0,no subsequent data field is present.Packet body: Content of the packet. The format of this field depends on the value of the Type field.
