Chapter 25 L2TP VPN
USG20(W)-VPN Series User’s Guide
398
Figure 278 Configuration > VPN > L2TP VPN
The following table describes the fields in this screen.
Table 150 Configuration > VPN > L2TP VPN
LABEL DESCRIPTION
Show Advanced
Settings / Hide
Advanced Settings
Click this button to display a greater or lesser number of configuration fields.
Create new Object Use to configure any new settings objects that you need to use in this screen.
Enable L2TP Over
IPSec
Use this field to turn the USG’s L2TP VPN function on or off.
VPN Connection Select the IPSec VPN connection the USG uses for L2TP VPN. All of the configured VPN
connections display here, but the one you use must meet the requirements listed in IPSec
Configuration Required for L2TP VPN on page 396.
Note: Modifying this VPN connection (or the VPN gateway that it uses) disconnects any
existing L2TP VPN sessions.
IP Address Pool Select the pool of IP addresses that the USG uses to assign to the L2TP VPN clients. Use
Create new Object if you need to configure a new pool of IP addresses.
This should not conflict with any WAN, LAN, DMZ or WLAN subnet even if they are not in
use.
Authentication
Method
Select how the USG authenticates a remote user before allowing access to the L2TP VPN
tunnel.
The authentication method has the USG check a user’s user name and password against
the USG’s local database, a remote LDAP, RADIUS, a Active Directory server, or more
than one of these.
Authentication
Server Certificate
Select the certificate to use to identify the USG for L2TP VPN connections. You must have
certificates already configured in the My Certificates screen. The certificate is used with
the EAP, PEAP, and MSCHAPv2 authentication protocols.
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