Draytek 2900 - Manual (Page 106)

Vigor2900 Series User’s Guide 100
Allowed Dial-In Type Determine the dial-in connection with different types.
ISDN Allow the remote ISDN dial-in connection. You can further set
up Callback function below. You should set the User Name and
Password of remote dial-in user below. This feature is useful for
i model only.
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 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.
Specify Remote VPN
Gateway You can specify the IP address of the remote dial-in user or
peer ID (should be the same with the ID setting in dial-in
type) by checking the box. Enter Peer ISDN number if you
select ISDN above (This feature is useful for i model only.).
Also, you should further specify the corresponding security