Translations:IPsec L2TP VPN server/4/en


 * 1) The IPsec setup provides the confidentiality of the network communication and the client (system) authentication
 * 2) With L2TP a tunnel is set up so that the VPN traffic goes over IPsec in a transparent manner
 * 3) The PPP (Point-to-Point Protocol) setup manages the authentication of the users