What are the benefits of L2TP and IPSEC?
IPsec (Internet Protocol Security) is a security protocol that provides encryption and authentication over the Internet. IPSec supports network-level data integrity, data confidentiality, data origin authentication, and replay protection. IPSec is integrated at the Internet layer (layer 3), it provides security for almost all protocols in the TCP/IP suite, and because IPSec is applied transparently to applications, there is no need to configure separate security for each application that uses TCP/IP. IPSec helps provide defense-in-depth against: Network-based attacks from untrusted computers, attacks that can result in the denial-of-service of applications, services, or the network Data corruption Data theft User-credential theft Administrative control of servers, other computers, and the network.You can use IPSec to defend against network-based attacks through a combination of host-based IPSec packet filtering and the enforcement of trusted communications.