Draytek Vigor2860 User Manual page 358

Available settings are explained as follows:
Item
User account and
Authentication
Allowed Dial-In Type
344
Description
Enable this account - Check the box to enable this function.
Idle Timeout- If the dial-in user is idle over the limitation of
the timer, the router will drop this connection. By default,
the Idle Timeout is set to 300 seconds.
PPTP - Allow the remote dial-in user to make a PPTP VPN
connection through the Internet. You should set the User
Name and Password of remote dial-in user below.
IPsec Tunnel - Allow the remote dial-in user to make an
IPsec VPN connection through Internet.
L2TP with IPsec Policy - Allow the remote dial-in user to
make a L2TP VPN connection through the Internet. You can
select to use L2TP alone or with IPsec. Select from below:
 None - Do not apply the IPsec policy. Accordingly, the
VPN connection employed the L2TP without IPsec
policy can be viewed as one pure L2TP connection.
Nice to Have - Apply the IPsec policy first, if it is

applicable during negotiation. Otherwise, the dial-in
VPN connection becomes one pure L2TP connection.
Must -Specify the IPsec policy to be definitely applied

on the L2TP connection.
SSL Tunnel – Allow the remote dial-in user to make an SSL
VPN connection through Internet.
Specify Remote Node -You can specify the IP address of the
remote dial-in user, ISDN number or peer ID (used in IKE
aggressive mode).
Uncheck the checkbox means the connection type you select
above will apply the authentication methods and security
Vigor2860 Series User's Guide