Huawei AR1200 Series Configuration Guide

3.18.5 Example for Configuring Inter-AS VPN Option B.............................................................................184
3.18.6 Example for Configuring Inter-AS VPN Option C.............................................................................190
3.18.7 Example for Configuring Inter-AS VPN Option C (Solution 2).........................................................197
3.18.8 Example for Configuring HoVPN.......................................................................................................209
3.18.9 Example for Configuring Multi-VPN-Instance CE.............................................................................216
3.18.10 Example for Connecting VPN and Internet.......................................................................................226
3.18.11 Example for Configuring the IP FRR of the Private Network..........................................................232
3.18.12 Example for Configuring VPN FRR.................................................................................................236
4 L2TP Configuration...................................................................................................................246
4.1 L2TP Overview..............................................................................................................................................247
4.1.1 Introduction to L2TP.............................................................................................................................247
4.1.2 L2TP Features Supported by the AR1200.............................................................................................247
4.2 Configuring Basic L2TP Functions................................................................................................................250
4.2.1 Establishing the Configuration Task.....................................................................................................250
4.2.2 Configuring Basic L2TP Capability......................................................................................................251
4.3 Configuring LAC............................................................................................................................................252
4.3.1 Establishing the Configuration Task.....................................................................................................252
4.3.2 Configuring an L2TP Connection on LAC Side...................................................................................253
4.3.3 (Optional) Configuring LAC Auto-Dial................................................................................................253
4.3.4 (Optional) Configuring Local Authentication on LAC Side.................................................................255
4.3.5 (Optional) Configuring RADIUS Authentication on LAC Side...........................................................255
4.3.6 Checking the Configuration...................................................................................................................257
4.4 Configuring LNS............................................................................................................................................258
4.4.1 Establishing the Configuration Task.....................................................................................................258
4.4.2 Configuring an L2TP Connection on LNS............................................................................................260
4.4.3 (Optional) Configuring User Authentication on LNS...........................................................................260
4.4.4 Allocating Addresses to Access Users..................................................................................................261
4.4.5 Checking the Configuration...................................................................................................................262
4.5 Adjusting L2TP Connection...........................................................................................................................263
4.5.1 Establishing the Configuration Task.....................................................................................................263
4.5.2 Configuring Security Options for L2TP Connection............................................................................264
4.5.3 Configuring L2TP Connection Parameters...........................................................................................265
4.6 Maintaining L2TP...........................................................................................................................................265
4.6.1 Disconnecting a Tunnel Forcibly..........................................................................................................265
4.6.2 Monitoring the Running Status of L2TP...............................................................................................266
4.6.3 Debugging L2TP Information...............................................................................................................266
4.7 Configuration Examples.................................................................................................................................267
4.7.1 Example for Configuring NAS-Initialized VPNs (Domain Name Access)..........................................267
4.7.2 Example for Configuring NAS-Initialized VPNs (Dialup Access).......................................................272
4.7.3 Example for Configuring Client-Initialized VPNs................................................................................275
4.7.4 Example for Configuring LAC-Auto-Initiated VPN.............................................................................277
5 IPSec Configuration..................................................................................................................282
Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN Contents
Issue 01 (2012-04-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
viii

Huawei AR1200 Series Specifications

General

Brand	Huawei
Model	AR1200 Series
Category	Network Router
Language	English