Performance Evaluation of Transport Layer VPN on IEEE 802.11g WLAN

Abstract

With the increasing popularity of Wireless Local Area Network (WLAN) in various sectors, security has become a primary concern. This has been necessitated by the fact that free-space radio transmission in wireless networks makes eavesdropping easy and consequently a security breach may result in unauthorized access, information theft, interference and service degradation. Virtual Private Networks (VPNs) have emerged as an important solution to security threats surrounding the use of public networks for private communications. While VPNs for wired line networks have matured in both research and commercial environments, the design and deployment of VPNs for WLAN is still an evolving field. This paper consist a brief description of OpenVPN, a transport layer tunneling VPN solution, used for securing IEEE 802.11g WLAN. In this paper we have presented experimental evaluation of OpenVPN with an analysis of its impact on performance of IEEE 802.11g.