Draytek Vigor2133 User Manual page 216

When you choose L2TP over IPsec (Nice to Have) or L2TP over IPsec (Must), you will see
the following graphic:
Available settings are explained as follows:
Item
Profile Name
Always On
Server IP/Host Name
204
Description
Type a name for such profile. The length of the file is limited
to 10 characters.
Check to enable router always keep VPN connection.
Type the IP address of the server or type the host name for
Vigor2133 Series User's Guide