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Troubleshooting
Configuring L2TP Services
Site Manager Procedure
Parameter Hello Timer seconds
How to
What is
Choose Service Attributes
Parameter Enable L2TP
Authorization
L2TP Access Concentrator LAC
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Image 11
Tables
Table
C-1.
Common L2TP Network Problems and Solutions
C-1
303532-A
Rev 00
xi
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Page 12
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Contents
Configuring L2TP Services
Copyright 1998 Bay Networks, Inc
Bay Networks, Inc. Software License Agreement
Rev
Contents
Chapter Starting L2TP
Appendix B Configuration Examples
Page
Figures
Page
Tables
Page
Before You Begin
Preface
Italic text
Text Conventions
Acronyms
Bay Networks Technical Publications
How to Get Help
Topic
Chapter L2TP Overview
L2TP Benefits
What Is Tunneling?
L2TP Sessions
Remote Host
Components of an L2TP Network
Tunnel Management Server TMS
L2TP Access Concentrator LAC
Remote Access Server RAS
Radius Server
L2TP Network Server LNS
Examples of L2TP Networks
L2TP Network Using a LAC
Packet Encapsulation Process
L2TP Packet Encapsulation
Making a Connection Across an L2TP Network
Security in an L2TP Network
Bay Networks L2TP Implementation
Tunnel Management
Tunnel Authentication
Shows tunnel authentication
Radius User Authentication
L2TP IP Interface Addresses
Radius Accounting
Remote Router Dialing the LNS
Remote Router Configuration
If you want to Go to
Where to Go Next
Page
Chapter Starting L2TP
Radius Server Information
Tunnel Authentication Passwords
Planning Considerations for an L2TP Network
Choose Local File , Remote File , or
Preparing a Configuration File
Site Manager Procedure You do this System responds
Tools Choose Configuration Manager
Subnet Mask
Enabling L2TP on an Unconfigured WAN Interface
Choose Add/Delete
Enabling L2TP on an Existing PPP Interface
Choose Edit Circuit
Configuring L2TP Services
Enabling L2TP on an Existing Frame Relay Interface
Configuration is completed
Choose Group Protocols
Site Manager Procedure
Enabling L2TP on an Existing ATM Interface
You do this System responds
Choose Protocols
Choose Service Attributes
Chapter Customizing L2TP Services
Choose L2TP Configuration
Modifying the L2TP Protocol Configuration
Radius Server on
Modifying Radius Server Information
Changing the LNS System Name
Modifying the Number of L2TP Sessions Permitted
Set the Remove Domain Name
Keeping the Remote User’s Domain Name
Set the Domain Name Delimiter
Changing the Domain Name Delimiter
Choose Tunnel Authentication
Enabling Tunnel Authentication
Choose L2TP IP Interface
Modifying L2TP IP Interface Addresses
Disabling L2TP
Disabling RIP
Deleting L2TP from a PPP Interface
Customizing L2TP Services
Deleting L2TP from a Frame Relay Interface
Deleting L2TP from an ATM Interface
Site Manager Procedure
Topic
Appendix a L2TP Parameters
Figure A-1. L2TP Configuration List Window
L2TP Configuration Parameters
Parameter Receive Window Size
Parameter Enable L2TP
Parameter Max L2TP Sessions
Parameter Maximum Retransmit
Parameter Retransmit Timer seconds
Parameter Hello Timer seconds
Parameter Radius Primary Server IP Address
Parameter Ack Timeout milliseconds
Parameter LNS System Name
Parameter Tunnel Flow Control
Parameter Radius Primary Server Password
Parameter Radius Client IP Address
Parameter Domain Name Delimiter
Parameter Remove Domain Name
Figure A-2. L2TP Tunnel Security List Window
L2TP Tunnel Security Parameters
Parameter Tunnel Authentication Password
Parameter Enable Tunnel Authentication
Figure A-3. L2TP IP Interface List Window
L2TP IP Interface Parameters
Parameter Subnet Mask
Parameter L2TP IP Interface Address
Parameter RIP Enable
Example 1 Remote PC Calling the Corporate Network
Appendix B Configuration Examples
Figure B-1. L2TP Network with PCs at the Remote Site
Configuring the Remote Hosts
Parameter Name Value IP Address 192.32.16.55
Configuring the LACs and the TMS
Configuring the LNS
Domain name baynetworks.com
L2TP IP Interface window, enter the L2TP IP address
Data Path Through the Network
Figure B-2. L2TP Network with Routers at the Remote Site
Example 2 Remote Router Calling the Corporate Network
Parameter Name Value RFC1661 Compliance Enable
Configuring the Dial-on-Demand Circuit
Configuring the PPP Interface
Problem What to Do
Appendix C Troubleshooting
Table C-1 Common L2TP Network Problems and Solutions
L2TP
Index
Index-2