H3C SR6600 Configuration Manual page 8

4 L2TP Configuration .................................................................................................................................4-67
L2TP Overview......................................................................................................................................4-67
Introduction....................................................................................................................................4-67
Typical L2TP Networking Application............................................................................................4-68
Basic Concepts of L2TP ................................................................................................................4-69
L2TP Tunneling Modes and Tunnel Establishment Process ........................................................4-70
L2TP Features...............................................................................................................................4-73
Protocols and Standards ...............................................................................................................4-73
L2TP Configuration Task List................................................................................................................4-73
Configuring Basic L2TP Capability .......................................................................................................4-74
Configuring an LAC...............................................................................................................................4-75
Configuring an LAC to Initiate Tunneling Requests for Specified Users.......................................4-75
Configuring an LAC to Transfer AVP Data in Hidden Mode .........................................................4-75
Configuring AAA Authentication of VPN Users on LAC Side........................................................4-76
Configuring an LNS...............................................................................................................................4-77
Creating a Virtual Interface Template............................................................................................4-77
Configuring the Local Address and the Address Pool for Allocation.............................................4-77
Configuring an LNS to Grant Certain L2TP Tunneling Requests .................................................4-78
Configuring User Authentication on an LNS .................................................................................4-79
Configuring AAA Authentication of VPN Users on LNS Side........................................................4-80
Enabling L2TP Multi-Instance .......................................................................................................4-81
Specifying to Send ACCM .............................................................................................................4-81
Configuring L2TP Connection Parameters ...........................................................................................4-82
Configuring L2TP Tunnel Authentication.......................................................................................4-82
Setting the Hello Interval ...............................................................................................................4-82
Enabling Tunnel Flow Control .......................................................................................................4-83
Disconnecting Tunnels by Force ...................................................................................................4-83
Displaying and Maintaining L2TP .........................................................................................................4-83
L2TP Configuration Examples ..............................................................................................................4-83
NAS-Initiated VPN .........................................................................................................................4-84
Client-Initiated VPN .......................................................................................................................4-86
L2TP Multi-Domain Application .....................................................................................................4-87
Complicated Network Application..................................................................................................4-91
Troubleshooting L2TP...........................................................................................................................4-91
5 L2TP-Based EAD Configuration.............................................................................................................5-93
L2TP-Based EAD Overview..................................................................................................................5-93
L2TP-Based EAD Configuration Example ............................................................................................5-94
Network Requirements ..................................................................................................................5-94
Configuration Procedure................................................................................................................5-95
6 HDLC Configuration ................................................................................................................................6-97
Introduction to HDLC.............................................................................................................................6-97
HDLC Overview.............................................................................................................................6-97
HDLC Frame Format and Frame Type .........................................................................................6-97
Enabling HDLC on an Interface ............................................................................................................6-98
Configuring an IP Address for an Interface...........................................................................................6-98
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