L2Tp Vpn; Overview; What You Can Do In The L2Tp Vpn Screens; What You Need To Know About L2Tp Vpn - ZyXEL Communications ZyWall USG 50-H Series User Manual

C
H A P T E R

24.1 Overview

6

L2TP VPN

lets remote users use the L2TP and IPSec client software included with their
computers' operating systems to securely connect to the network behind the ZyWALL. The
remote users do not need their own IPSec gateways or VPN client software.
Figure 279 L2TP VPN Overview

24.1.1 What You Can Do in the L2TP VPN Screens

• Use the L2TP VPN screen (see
L2TP VPN settings.
• Use the L2TP VPN screen (see
ZyWALL's connected L2TP VPN sessions.

24.1.2 What You Need to Know About L2TP VPN

The Layer 2 Tunneling Protocol (L2TP) works at layer 2 (the data link layer) to tunnel
network traffic between two peers over another network (like the Internet). In L2TP VPN, an
IPSec VPN tunnel is established first and then an L2TP tunnel is built inside it. See
on page 307 for information on IPSec VPN.
IPSec Configuration Required for L2TP VPN
You must configure an IPSec VPN connection for L2TP VPN to use (see
307 for details). The IPSec VPN connection must:
• Be enabled.
• Use transport mode.
6. This feature is to be supported in firmware version 2.16(BDL.2).
ZyWALL USG 50-H User's Guide

L2TP VPN

Section 24.2 on page 365) to configure the ZyWALL's
Section 24.3 on page 366) to display and manage the
24
Chapter 19
Chapter 19 on page
363