Draytek VigorFly 210 User Manual page 112

Available settings are explained as follows:
Item
Common Settings
Dial-Out Settings
Description
Profile Name - Specify a name for the profile of the
LAN-to-LAN connection.
Enable this profile - Check here to activate this profile.
Call Direction - Specify the allowed call direction of this
LAN-to-LAN profile.

Both:-initiator/responder

Dial-Out- initiator only

Dial-In- responder only.
Always On-Check to enable router always keep VPN
connection.
Idle Timeout: The default value is 300 seconds. If the
connection has been idled over the value, the router will drop
the connection.
Type of Server I am calling –
PPTP - Build a PPTP VPN connection to the server through
the Internet. You should set the identity like User Name and
Password below for the authentication of remote server.
IPSec Tunnel - Build an IPSec VPN connection to the server
through Internet.
L2TP with IPSec Policy - Build 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
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VigorFly 210 Series User's Guide