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Nortel Networks L2TP Preparing a Configuration File, Tools Choose Configuration Manager, Dynamic

Models: L2TP

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Starting L2TP

Preparing a Configuration File

Before starting L2TP, you must create and save a configuration file with at least one WAN interface, for example, a synchronous or MCT1 port.

Note: L2TP is not compatible with dial services. Do not enable L2TP on the same slot that you enable for a dial service, such as dial-on-demand, dial backup, or bandwidth-on-demand.

For information about the Site Manager configuration tool and how to work with configuration files, see Configuring and Managing Routers with Site Manager.

To open the configuration file, complete the following tasks:

Site Manager Procedure

You do this		System responds

1.	In the main Site Manager window, choose	The Tools menu opens.
	Tools.

2.	Choose Configuration Manager.	The Configuration Manager window
		opens.

3.	Choose Local File, Remote File, or	Site Manager prompts you for the
	Dynamic.	configuration file you want to open.

4.	Select the file and click on OK.	The Configuration Manager window
		opens, displaying the router modules.

From the Configuration Manager window, go to one of the following sections to enable L2TP:

Section	Page

Enabling L2TP on an Unconfigured WAN Interface	2-4

Enabling L2TP on an Existing PPP Interface	2-5

Enabling L2TP on an Existing Frame Relay Interface	2-7

Enabling L2TP on an Existing ATM Interface	2-9

303532-A Rev 00

2-3

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Nortel Networks L2TP manual Preparing a Configuration File, Site Manager Procedure You do this System responds, Dynamic

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 PrefaceItalic text Text ConventionsAcronyms Bay Networks Technical Publications How to Get HelpTopic Chapter L2TP OverviewL2TP Benefits What Is Tunneling?L2TP Sessions Remote Host Components of an L2TP NetworkRemote Access Server RAS L2TP Access Concentrator LACTunnel Management Server TMS Radius Server L2TP Network Server LNSExamples of L2TP Networks L2TP Network Using a LACPacket Encapsulation Process L2TP Packet EncapsulationMaking a Connection Across an L2TP Network Security in an L2TP Network Bay Networks L2TP Implementation Tunnel Management Tunnel AuthenticationShows tunnel authentication Radius User Authentication L2TP IP Interface Addresses Radius AccountingRemote Router Dialing the LNS Remote Router ConfigurationIf you want to Go to Where to Go NextPage Chapter Starting L2TP Planning Considerations for an L2TP Network Tunnel Authentication PasswordsRadius Server Information Site Manager Procedure You do this System responds Preparing a Configuration FileTools Choose Configuration Manager Choose Local File , Remote File , orSubnet Mask Enabling L2TP on an Unconfigured WAN InterfaceChoose Edit Circuit Enabling L2TP on an Existing PPP InterfaceChoose Add/Delete Configuring L2TP Services Enabling L2TP on an Existing Frame Relay Interface Configuration is completed Enabling L2TP on an Existing ATM Interface Site Manager ProcedureYou do this System responds Choose Group ProtocolsChoose Protocols Choose Service AttributesChapter Customizing L2TP Services Choose L2TP Configuration Modifying the L2TP Protocol ConfigurationRadius Server on Modifying Radius Server InformationChanging the LNS System Name Modifying the Number of L2TP Sessions Permitted Set the Remove Domain Name Keeping the Remote User’s Domain NameSet the Domain Name Delimiter Changing the Domain Name DelimiterChoose Tunnel Authentication Enabling Tunnel AuthenticationChoose L2TP IP Interface Modifying L2TP IP Interface AddressesDisabling L2TP Disabling RIPDeleting L2TP from a PPP Interface Customizing L2TP ServicesDeleting L2TP from a Frame Relay Interface Deleting L2TP from an ATM Interface Site Manager Procedure Topic Appendix a L2TP ParametersFigure A-1. L2TP Configuration List Window L2TP Configuration ParametersParameter Max L2TP Sessions Parameter Enable L2TPParameter Receive Window Size Parameter Hello Timer seconds Parameter Retransmit Timer secondsParameter Maximum Retransmit Parameter LNS System Name Parameter Ack Timeout millisecondsParameter Radius Primary Server IP Address Parameter Radius Client IP Address Parameter Radius Primary Server PasswordParameter Tunnel Flow Control Parameter Domain Name Delimiter Parameter Remove Domain NameFigure A-2. L2TP Tunnel Security List Window L2TP Tunnel Security ParametersParameter Tunnel Authentication Password Parameter Enable Tunnel AuthenticationFigure A-3. L2TP IP Interface List Window L2TP IP Interface ParametersParameter Subnet Mask Parameter L2TP IP Interface AddressParameter RIP Enable Example 1 Remote PC Calling the Corporate Network Appendix B Configuration ExamplesFigure B-1. L2TP Network with PCs at the Remote Site Configuring the Remote HostsConfiguring the LNS Configuring the LACs and the TMSDomain name baynetworks.com Parameter Name Value IP Address 192.32.16.55L2TP IP Interface window, enter the L2TP IP address Data Path Through the NetworkFigure B-2. L2TP Network with Routers at the Remote Site Example 2 Remote Router Calling the Corporate NetworkConfiguring the PPP Interface Configuring the Dial-on-Demand CircuitParameter Name Value RFC1661 Compliance Enable Problem What to Do Appendix C TroubleshootingTable C-1 Common L2TP Network Problems and Solutions L2TP IndexIndex-2