Draytek Vigor2820 Series User Manual page 170

Allowed Dial-In Type
ISDN
PPTP
IPSec Tunnel
L2TP
Vigor2820 Series User's Guide
router to send the ISDN number to the remote router. This feature
is useful for s model only.
Determine the dial-in connection with different types.
Allow the remote ISDN LAN-to-LAN connection. You should set
the User Name and Password of remote dial-in user below. This
feature is useful for s model only. In addition, you can further set
up Callback function below.
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.
Allow the remote dial-in user to trigger an IPSec VPN connection
through Internet.
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
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