Draytek Vigor2620 LTE Series User Manual page 226

Available settings are explained as follows:
Item
Dial-In Settings
214
Local ID-In Aggressive mode, Local ID is on behalf of
the IP address while identity authenticating with
remote VPN server. The length of the ID is limited to 47
characters.
Schedule Profile - Set the wireless LAN to work at certain
time interval only. You may choose up to 4 schedules out of
the 15 schedules pre-defined in Applications >> Schedule
setup. The default setting of this field is blank and the
function will always work.
Description
Allowed Dial-In Type - Determine the dial-in connection
with different types.
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 trigger
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.
Vigor2620 Series User's Guide