User guide

Chapter 4. Configuring Special Features 111
Miscellaneous commands:
Commands used to delete a tunnel, close a tunnel, or set up advanced L2TP configuration features such
as traffic performance fine-tuning are discussed in the L2TP Commands section of Chapter 5.
PPP Session Configuration
Two commands are used to extend a PPP link from a remote site to a corporate site across the Internet and
establish a tunnel. For additional information on the syntax of the commands listed below, refer to the
Remote Commands section of Chapter 5.
remote setLNS <TunnelName> <remoteName>
remote setl2tpclient <TunnelName><remoteName>
Sample Configurations
Two sample configurations are described in this section:
¥ A simple configuration. This example describes the information needed to configure one side of the tunnel
(the client side).
¥ A complete configuration. This example describes the information needed to configure both sides of the
tunnel (client and server sides).
Simple L2TP Client Configuration Example
This example shows how a telecommuter working at home (client side) can configure his/her router SOHO to
tunnel to the companyÕs LAN (server side).
The information given in the Configuration Process section below provides a framework reference for this
type of L2TP Client configuration.
¥ Assumptions
In this example, the following information is assumed:
¥ The server side (the company) has an LNS router connected to the Internet.
¥ The client side has an existing route to the Internet with the remote ÒInternetÓ (refer to the following
Note, if you need sample configuration commands).
¥ IP routing is enabled (refer to the following Note, if you need sample configuration commands).
Note: Below is an example of configuration commands that can be used to enable IP routing and
establish a route to the Internet.