Denial of Service Issues in Voice Over IP Networks

نویسندگان

  • Jason Reid
  • Andrew J. Clark
  • Juan Manuel González Nieto
  • Jason Smith
  • Kapali Viswanathan
چکیده

In this paper we investigate denial of service (DoS) vulnerabilities in Voice over IP (VoIP) systems, focusing on the ITU-T H.323 family of protocols. We provide a simple characterisation of DoS attacks that allows us to readily identify DoS issues in H.323 protocols. We also discuss network layer DoS vulnerabilities that affect VoIP systems. A number of improvements and further research directions are proposed.

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تاریخ انتشار 2004