ZyXEL Communications 200 Series 用户手册

Chapter 25 L2TP VPN

ZyWALL USG 100/200 Series User’s Guide

Click VPN > L2TP VPN > Session Monitor to open the following screen. Use this screen to 
display and manage the ZyWALL’s connected L2TP VPN sessions. 

Figure 298   VPN > L2TP VPN > Session Monitor

The following table describes the fields in this screen.    

Authentication 
Method

Select how the ZyWALL authenticates a remote user before allowing access to 
the L2TP VPN tunnel.
The authentication method has the ZyWALL check a user’s user name and 
password against the ZyWALL’s local database, a remote LDAP, RADIUS, a 
Active Directory server, or more than one of these. See 

for how to create authentication method objects. 

Allowed User

The remote user must log into the ZyWALL to use the L2TP VPN tunnel.
Select a user or user group that can use the L2TP VPN tunnel. Select Create 
Object to configure a new user account (see 

details). Otherwise, select any to allow any user with a valid account and 
password on the ZyWALL to log in.

Keep Alive Timer

The ZyWALL sends a Hello message after waiting this long without receiving any 
traffic from the remote user. The ZyWALL disconnects the VPN tunnel if the 
remote user does not respond.

First DNS Server
Second DNS 
Server

Specify the IP addresses of DNS servers to assign to the remote users. You can 
specify these IP addresses two ways.
Custom Defined - enter a static IP address.
From ISP - use the IP address of a DNS server that another interface received 
from its DHCP server.

First WINS Server, 
Second WINS 
Server 

The WINS (Windows Internet Naming Service) server keeps a mapping table of 
the computer names on your network and the IP addresses that they are currently 
using.  
Type the IP addresses of up to two WINS servers to assign to the remote users. 
You can specify these IP addresses two ways.

Apply

Click Apply to save your changes in the ZyWALL.

Reset

Click Cancel to start configuring this screen afresh.

Table 131   VPN > IPSec VPN > VPN Connection (continued)

Table 132   VPN > L2TP VPN > Session Monitor

#

This is the index number of a current L2TP VPN session.

User Name

This field displays the remote user’s user name.