【正文】 sent LCP options*Jun 29 16:10:28:636 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Last received LCP options*Jun 29 16:10:28:737 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Proxy authentication type : 2*Jun 29 16:10:28:837 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Proxy authentication name : *Jun 29 16:10:28:938 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Proxy authentication challenge*Jun 29 16:10:29:39 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Proxy authentication ID : 1*Jun 29 16:10:29:150 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Parse AVP Proxy authenticate response:95 01 9b 56 4e 1b 7b 26 2a ee 75 3a 34 24 d7 a9 *Jun 29 16:10:29:251 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Proxy private group number : 0*Jun 29 16:10:29:351 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Rx connect speed: 0*Jun 29 16:10:29:452 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Call 11564 sent a ICCN message to remote Call 13787*Jun 29 16:10:29:503 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Tunnel 1 recv ctrl message and restarted Hello timer.. . . ..學(xué)習(xí)參考*Jun 29 16:10:29:603 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Received message type: 16*Jun 29 16:10:29:754 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Board 0 recv from SOCK call ID=11564 tunnel ID=1 MsgType = 16 Length = 36*Jun 29 16:10:29:855 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Proc a control message from the peer: type=16, len = 36*Jun 29 16:10:29:956 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:30:107 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:30:218 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:30:319 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:30:420 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:30:520 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:30:621 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0*Jun 29 16:10:33:528 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0RTARTA*Jun 29 16:10:43:604 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0RTA*Jun 29 16:10:53:681 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0斷開連接，觀察 debugging 信息：RTA*Jun 29 16:10:56:752 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc peer data. Result 0%Jun 29 16:10:56:781 2022 RTA IFNET/4/UPDOWN: Line protocol on the interface VirtualTemplate0:0 is DOWN *Jun 29 16:10:56:782 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: CALL 11564 DOWN on interface: VirtualTemplate0:0*Jun 29 16:10:56:783 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc l2tp down msg, call in the state 9*Jun 29 16:10:56:783 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Message Type: CALL_DISCONNECT_NOTIFY*Jun 29 16:10:56:784 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Result code: LOSS_OF_CARRIER*Jun 29 16:10:56:784 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Assigned call ID: 11564*Jun 29 16:10:56:784 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Call 11564 sent a CDN message*Jun 29 16:10:56:784 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Cleared the data structure of call 11564 *Jun 29 16:10:56:881 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Proc call ID = 11564 Down*Jun 29 16:10:56:982 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Disabled L2TP successfully on interface 3145728*Jun 29 16:10:57:82 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Tunnel 1 recv ctrl message and restarted Hello timer*Jun 29 16:10:57:183 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Received message type: 39856*Jun 29 16:10:57:294 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Board 0 recv from SOCK call ID=0 tunnel ID=1 Length = 12*Jun 29 16:10:57:395 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Proc peer control len = 12RTARTA*Jun 29 16:11:23:524 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Hello timer of tunnel 1 expired in 60 seconds*Jun 29 16:11:23:524 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Tunnel 1 sent StopCCN to Tunnel 1*Jun 29 16:11:23:525 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Message Type: STOP_CONTROL_CONNECTION_NOTIFICATION*Jun 29 16:11:23:525 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Assigned Tunnel ID: 1*Jun 29 16:11:23:525 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Put AVP Result code: LOSS_OF_CARRIER*Jun 29 16:11:23:525 2022 RTA L2TP/7/L2TDBG: L2TP_EVENT: Cleared Tunnel remote ID:1, local ID:1.. . . ..學(xué)習(xí)參考*Jun 29 16:11:23:770 2022 RTA L2TP/7/L2TDBG: L2TP_CONTROL: Received ctrl message is ZLB, discard itRTA這樣就可以了解呼叫中 L2TP 的主要信息交換過程。限于篇幅，此處不列出 RTB 的debugging 輸出信息，請自行觀察。實驗任務(wù)二：配置客戶 LAC 模式步驟一：執(zhí)行基本配置步驟二：配置公網(wǎng)路由刪除所有靜態(tài)路由。在 RTA 上刪除所有 PPPoE 和 L2TP 配置。[RTAGigabitEther0/0]undo pppoeserver bindAll PPPoE Sessions on GigabitEther0/0 will be deleted, continue?[Y/N]:y [RTA]undo domain [RTA]undo l2tp enable[RTA]undo l2tpgroup 1[RTA]undo interface VirtualTemplate 0[RTA]undo localuser vpdnuser[RTA]undo domain 在 RTA、RTB 和 SWA 上配置 OSPF：[RTA]ospf[RTAospf1]area 0[]work []work [SWA]ospf[SWAospf1]area 0[]work []work [RTB]ospf[RTBospf1]area 0[]work 步驟三：安裝 iNode 客戶端在 PCA 上安裝 iNode 客戶端。啟動安裝程序，跟隨安裝向?qū)瓿砂惭b即可。注意：要使 iNode 客戶端支持 L2TP 功能，在安裝過程中必須確認(rèn)安裝虛擬網(wǎng)卡（Virtual NIC） 。步驟四：配置 iNode 客戶端啟動 iNode 客戶端程序，在其主界面窗口中單擊菜單【文件】|【新建連接】 ，啟動新建連接向?qū)?，?圖 28 所示。單擊【下一步】 ，進(jìn)入 圖 29 所示窗口，單擊選定【L2TP IPSec VPN 協(xié)議】 。.. . . ..學(xué)習(xí)參考圖 28 進(jìn)入新建連接向?qū)D 29 選擇認(rèn)證協(xié)議單擊【下一步】 ，進(jìn)入 圖 210 所示窗口，單擊選定【普通連接】 。單擊【下一步】 ，進(jìn)入 圖 211 所示窗口，在【連接名】處輸入一個連接名稱，例如“我的VPN 連接” ，在【登錄用戶名】處輸入用戶名，在【登錄密碼】處輸入密碼。.. . . ..學(xué)習(xí)參考圖 210 選擇連接類型圖 211 設(shè)置用戶名和密碼單擊【下一步】 ，進(jìn)入 圖 212 所示窗口，輸入 LNS 服務(wù)器地址。單擊【高級】進(jìn)入 圖 213 所示的窗口，進(jìn)入【L2TP 設(shè)置】選項卡，輸入隧道名稱 LAC，選擇認(rèn)證模式為 CH