D-Link DFL-1500 [153/271] Chapter 18 remote access vpn l2tp

DFL-900/1500 User Manual Chapter 18

Remote Access VPN – L2TP

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Chapter 18

Remote Access VPN – L2TP

This chapter introduces L2TP and explains how to implement it.

18.1 Demands

1. One employee in our company may sometimes want to connect back to our corporate network for handling something. His

PC is PC1_1 in LAN1 instead of DMZ1 so he cannot directly access the host by simply with virtual server settings. This

causes inconvenience for the employee to work remotely.

18.2 Objectives

1. With L2TP tunneling, emulate the mobile employee as a member in LAN_1 after he dials in the corporate network. Then

he can access all computers in LAN_1 just as if he stays in the office covered by LAN_1.

Figure 18-1 L2TP method connection

18.3 Methods

1. Setup the L2TP server at DFL-1500 (LNS: L2TP Network Server). After dialing up to DFL-1500, DFL-1500 will assign a

private IP which falls in the range of the settings in the L2TP server at DFL-1500. Suppose the range is defined as

192.168.40.200 ~ 192.168.40.253, the remote host may get an IP of 192.168.40.200 and logically become a member in

LAN_1.