What is VPN?
• Virtual private network (VPN) is a private data network that makes use of the public telecommunication infrastructure, maintaining privacy through the use of a tunneling protocol and security procedures. The idea of the VPN is to give the company the same capabilities at much lower cost by using the shared public infrastructure rather than a private one. • What is Internet Key Exchange (IKE)? • Internet Key Exchange is a negotiation and key exchange protocol specified by the Internet Engineering Task Force (IETF). An IKE Security Association (SA) automatically negotiates encryption and authentication keys. With IKE, and initial exchange authenticates the VPN session and automatically negotiates keys that will be used to pass IP traffic. • What is IPSec? • Internet Protocol Security is a robust VPN standard that covers authentication and encryption of data traffic over the Internet. VPN technology using IPSec encrypts outgoing data and decrypts incoming data. IPSec has two encryption
