International Journal of Advanced Research in Computer Engineering & Technology
Network security issues are now becoming important as society is moving to digital information age. For securing the vital information in internet VPN is one of the safest techniques. Virtual Private Network (VPN) is fast growing technology which plays a great role by protecting data from hackers while transmitting through networks.VPN creates a tunnel for secure communication between two end systems. OSI models provide different VPN protocols in each layer for securing the communication through public network.