Справочник Пользователя для SonicWALL 5.8.1

User Name - The user name assigned in the local user database or the RADIUS user 
database. 

PPP IP - The source IP address of the connection.

Zone - The zone used by the LT2P client.

Interface - The interface used to access the L2TP Server, whether it is a VPN client or 
another SonicWALL security appliance. 

Authentication - Type of authentication used by the L2TP client.

Host Name - The name of the L2TP client connecting to the L2TP Server.

The 

chapter contains some guidance on how to configure L2TP 

connections from Apple iOS devices (iPad/iPhone/iPod touch) for either LDAP or RADIUS 
authentication. For more information, see