Provide secure VPN encrypted tunnel protocol:

Provide secure VPN encrypted tunnel protocol:
By blocking the interception and packet sniffing confidential, allo wing sender authentication,to prevent identity spoofing
Message integrity, to prevent the alteration of the message
Secure VPN protocols include the following:
IPSEC (Internet Protocol Security) by the Internet Engineering Task Force (IETF), initially for IPv6, which requires developed countries. This standards-based security protocol widelydistressed IPv4. Layer 2 Tunneling Protocol over IPsec operation. It is designed to meet thesecurity objectives are: authentication, integrity, and confidentiality. An IP packet summary and IPsec functionality to encrypt results together with the surrounding mob.
Transport Layer Security (SSL / TLS) is the cancer of the tunnel network traffic, because it isthe OpenVPN project, or a separate connection. Many vendors to provide remote accessthrough SSL VPN functionality. Failure run of the place in an SSL VPN connection to cancerelsewhere IPsec network address translation and firewall rules.
Datagram Transport Layer Security (DTLS), ice Distressed Cisco AnyConnect VPN to solve the problem, through the UDP tunnel SSL / TLS speed.
Microsoft Point to Point Encryption (MPPE) with their point of view, point-to-point tunneling protocol and compatible with other platforms of several of the migration.
Microsoft's Secure Socket Tunneling Protocol (SSTP), introduced in Windows Server 2008and inWindows Vista Service Pack 1. SSTP tunnel point Point to Point Protocol (PPP) orLayer 2 Tunneling Protocol flow through SSL3.0 channel.