Performance analysis of intrusion prevention system on cyber security for Voice over Internet Protocol (VOIP)

This research evaluated the cyber security effectiveness of the intrusion prevention system for Voice over Internet Protocol (VoIP) focusing on the defense of Denial of Service (DoS) which propose to disturb server providing VoIP services. This will give a strong impact on entrepreneurs. Intrusion prevention system (IPS) has been employed based on Snort software, this study as a preventive technique for internal and external attack. This included the analysis of effectiveness of intrusion prevention on the basic structure of VoIP. The results revealed that intrusion prevention system at TCP protocol with the attack by multicast IP address achieved the maximum performance. TCP protocol can detect and prevent the attack with the highest effective. In addition, the attack via wire network can be detected higher than that of through the wireless network. Furthermore, multicast attack is more effective than unicast attack.