Abstract

Virtual Private Network framework provides Confidentiality, Integrity, Availability, Authentication and Anti- Replay services to the packets travelling through the shared medium like Internet. With the latest Advancement in the technology, Internet is available to the users thru all means like Wireless networks, GPRS, Satellite. When the VPN user roams or switches from one network to other, the IP address gets changed and VPN connection is tear down. The user has to again initiate the VPN connection whenever the network is switched. This paper present outcome of research project aimed at solving the mobility problems faced by roaming VPN users.