User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform Table of Contents
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Table of Contents
Chapter 1 Overview of VPN......................................................................................................... 1-1
1.1 VPN features..................................................................................................................... 1-1
1.2 Classification of IP VPN.................................................................................................... 1-2
Chapter 2 Configuration of L2TP................................................................................................2-1
2.1 Brief Introduction to L2TP Protocol................................................................................... 2-1
2.1.1 Overview of VPDN .................................................................................................2-1
2.1.2 L2TP Protocol......................................................................................................... 2-2
2.2 Configuring L2TP.............................................................................................................. 2-6
2.2.1 L2TP Configuration Task List................................................................................. 2-6
2.2.2 Configuring at LAC Side......................................................................................... 2-6
2.2.3 Configuring at LNS Side......................................................................................... 2-8
2.2.4 Optional configuration ..........................................................................................2-10
2.3 Monitoring and Maintenance of L2TP ........................................................................2-13
2.4 Typical Configuration of L2TP ........................................................................................ 2-14
2.4.1 NAS-Initialized VPN .............................................................................................2-14
2.4.2 Client-Initialized VPN ........................................................................................... 2-16
2.4.3 Single User Interconnects Headquarters via Router............................................ 2-17
2.5 Fault Diagnosis of L2TP ................................................................................................. 2-19
Chapter 3 Configuration of GRE.................................................................................................3-1
3.1 Brief Introduction to GRE Protocol.................................................................................... 3-1
3.2 Configuring GRE............................................................................................................... 3-3
3.2.1 GRE Configuration Task List.................................................................................. 3-3
3.2.2 Creating Virtual Tunnel Interface ........................................................................... 3-4
3.2.3 Setting the Source Address of Tunnel Interface .................................................... 3-4
3.2.4 Setting the Destination Address of Tunnel Interface ............................................. 3-4
3.2.5 Setting the Network Address of Tunnel Interface .................................................. 3-5
3.2.6 Setting the Encapsulation Mode of Tunnel Interface Message ............................. 3-5
3.2.7 Setting the Identification Key Word of Tunnel Interface......................................... 3-5
3.2.8 Setting Tunnel Interface to Check with Check Sum .............................................. 3-5
3.2.9 Setting Tunnel Interface to Synchronize Datagram Serial Number ....................... 3-6
3.3 Monitoring and Maintenance of GRE........................................................................... 3-6
3.4 Typical Configuration of GRE ...........................................................................................3-7
3.5 Troubleshooting GRE .......................................................................................................3-9