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Studying the Impact of a UDP DoS Attack on the Parameters of VoIP Voice and Video Streams

Author

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  • Ivan Nedyalkov

    (Faculty of Engineering, South-West University “Neofit Rilski”, 2700 Blagoevgrad, Bulgaria)

Abstract

This work studies the hypothesis of whether the UDP DoS attack affects voice and video flows in a VoIP network. It is a continuation of a previous work that studied the same hypothesis, but the VoIP server was under different types of TCP DoS attacks. The studied VoIP platform is the Asterisk FreePBX. A simple IP network model was developed for the purpose of the study. The used platform for the modeling of IP networks is GNS3. The study is conventionally divided into two parts: in the first part, only voice streams are exchanged in the network, and the server is subjected to a UDP DoS attack, and in the second part, only video streams are exchanged in the network, and again, Asterisk is subjected to a UDP DoS attack. The obtained results confirm the results of the previous study—the performance of the Asterisk FreePBX is not affected by the UDP DoS attack. Although the server is flooded with UDP packets, it works and is not blocked, and different types of VoIP calls are realized without problems. The UDP DoS attack does not affect the parameters of voice and video VoIP streams.

Suggested Citation

  • Ivan Nedyalkov, 2025. "Studying the Impact of a UDP DoS Attack on the Parameters of VoIP Voice and Video Streams," Future Internet, MDPI, vol. 17(4), pages 1-28, March.
    • Handle: RePEc:gam:jftint:v:17:y:2025:i:4:p:139-:d:1619026
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