Huawei AR1200 Series Configuration Guide

Contents
About This Document.....................................................................................................................ii
1 GRE Configuration.......................................................................................................................1
1.1 Introduction to GRE...........................................................................................................................................2
1.2 GRE Features Supported by the AR1200...........................................................................................................2
1.3 Configuring GRE................................................................................................................................................3
1.3.1 Establishing the Configuration Task.........................................................................................................3
1.3.2 Configuring a Tunnel Interface.................................................................................................................4
1.3.3 Configuring Routes for the Tunnel............................................................................................................5
1.3.4 (Optional) Configuring GRE Security Options.........................................................................................6
1.3.5 Checking the Configuration.......................................................................................................................7
1.4 Configuring a GRE Tunnel Between CE and PE...............................................................................................8
1.4.1 Establishing the Configuration Task.........................................................................................................8
1.4.2 Configuring the GRE Tunnel Interface on CE..........................................................................................9
1.4.3 Configuring the GRE Tunnel Interface on PE.........................................................................................10
1.4.4 Binding the GRE Tunnel with the VPN to Which CE belongs on PE....................................................12
1.4.5 Checking the Configuration.....................................................................................................................12
1.5 Configuring the Keepalive Function................................................................................................................13
1.5.1 Establishing the Configuration Task.......................................................................................................13
1.5.2 Enabling the Keepalive Function............................................................................................................14
1.5.3 Checking the Configuration.....................................................................................................................15
1.6 Maintaining GRE..............................................................................................................................................16
1.6.1 Resetting the Statistics of a Tunnel Interface..........................................................................................16
1.6.2 Monitoring the Running Status of GRE..................................................................................................16
1.6.3 Debugging GRE......................................................................................................................................17
1.7 Configuration Examples...................................................................................................................................17
1.7.1 Example for Configuring a Static Route for GRE...................................................................................17
1.7.2 Example for Configuring a Dynamic Routing Protocol for GRE...........................................................21
1.7.3 Example for Configuring a GRE Tunnel to Transmit VPN Multicast Data Encrypted with IPSec........25
1.7.4 Example for Configuring the CE to Access a VPN Through a GRE Tunnel of the Public Network
..........................................................................................................................................................................31
1.7.5 Example for Configuring the Keepalive Function for GRE....................................................................38
2 MCE Configuration.....................................................................................................................41
2.1 Introduction to MCE.........................................................................................................................................42
Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN Contents
Issue 01 (2012-04-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
iv

Huawei AR1200 Series Specifications

General

Brand	Huawei
Model	AR1200 Series
Category	Network Router
Language	English