VPN
internet protocol security
Answer: The Authenticated Header (AH) In the IPSec protocol the only traffic that is unencrypted is the (AH). In other words, it only signs the traffic to retain its authentication & integrity, but no privacy.
The Internet Engineering Task Force (IETF)'s IP Security Protocol (IPSec) working group is defining a set of specifications for cryptographically-based authentication, integrity, and confidentiality services at the IP datagram layer. IPSec is intended to be the future standard for secure communications on the Internet, but is already the de facto standard. The IPSec group's results comprise a basis for interoperably secured host-to-host pipes, encapsulated tunnels, and Virtual Private Networks (VPNs), thus providing protection for client protocols residing above the IP layer.
Port Numbers
Common Internet Protocol for browsing is TCP/IP.
L2TP over IPSec
L2PT over IPSec
internet protocol security
*IPSEC
Layer 2 Tunneling Protocol (L2TP)
B.UnicastC.KerberosD.Resourse Reservation Protocol(RSVP)
IP Security Protocol (IPSec)
IPSec is an internet security protocol. The protocol is used to ensure private and secure communications over Internet Protocol networks. Defense is provided for network based attacks, corruption and theft of data, and takeover of computer administrative properties.
IPSEC is a portmanteau of the words 'internet protocol security,' which is a framework of open standards, that allows very secure communication in a network.
Internet Key Exchange
IPsec (IP security) is a suite of protocols for securing Internet Protocol (IP) communications by authenticating and/or encrypting each IP packet in a data stream. IPsec also includes protocols for cryptographic key establishment.
IPSec with encapsulating encryption