【正文】 er Length Data Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。 ? EAP報文的格式為： Code Identifier Length Data Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。而 EAPOL就是 PPP的一個可擴展的認證協(xié)議。 Trademark Office. All other product or service names are the property of their respective owners. 169。 ? 下線方式： –物理端口 Down； –重新認證不通過或者超時； –客戶端發(fā)起 EAP_Logoff幀； –網(wǎng)管控制導(dǎo)致下線； Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。當(dāng)客戶通過認證后，則端口狀態(tài)切換到授權(quán)狀態(tài)（ authorized），允許客戶端通過端口進行正常通訊。 Trademark Office. All other product or service names are the property of their respective owners. 169。 Trademark Office. All other product or service names are the property of their respective owners. 169。 Trademark Office. All other product or service names are the property of their respective owners. 169。 Motorola, Inc. 2022 Motorola無線培訓(xùn) 第五部分：無線網(wǎng)絡(luò)安全 Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。 Trademark Office. All other product or service names are the property of their respective owners. 169。 Trademark Office. All other product or service names are the property of their respective owners. 169。 Motorola, Inc. 2022 在 win98下提供的客戶端： 在 winXP下提供的客戶端： Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。 Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。 Motorola, Inc. 2022 ? 認證通過前，通道的狀態(tài)為 unauthorized，此時只能通過 EAPOL的 ； ? 認證通過時，通道的狀態(tài)切換為 authorized，此時從遠端認證服務(wù)器可以傳遞來用戶的信息，比如 VLAN、 CAR參數(shù)、優(yōu)先級、用戶的訪問控制列表等等； ? 認證通過后，用戶的流量就將接受上述參數(shù)的監(jiān)管，此時該通道可以通過任何報文，注意只有認證通過后才有 DHCP等過程。認證通過后端口切換到授權(quán)狀態(tài)，在退出前可以進行重認證。 Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。 Motorola, Inc. 2022 EAPOL協(xié)議的介紹 ? 下面是一個典型的 PPP協(xié)議的幀格式： –當(dāng) PPP幀中的 protocol域表明協(xié)議類型為 C227(PPP EAP)時，在 PPP數(shù)據(jù)鏈路層幀的 Information域中封裝且僅封裝 PPP EAP數(shù)據(jù)包，此時表明將應(yīng)用 PPP的擴展認證協(xié)議 EAP。 Motorola Document Classification, Beyond the Four Walls MOTOROLA and the Stylized M Logo are registered in the US Patent amp。 ?Identifier域為一個字節(jié)。超出Length域的字節(jié)應(yīng)視為數(shù)據(jù)鏈路層填充（ padding），在接收時應(yīng)該被忽略掉。 Trademark Office. All other product or service names are the property of their respective owners. 16