VoIP Traffic classification in IPSec Tunnels

Yildirim, T and Radcliffe, P 2010, 'VoIP Traffic classification in IPSec Tunnels', in Venkatesh Mahadevan; Guo Zhenghe; S.R.Bhadra Chaudhuri (ed.) International Conference on Electronics and Information Engineering, United States, August 1-3, 2010, pp. 151-157.


Document type: Conference Paper
Collection: Conference Papers

Title VoIP Traffic classification in IPSec Tunnels
Author(s) Yildirim, T
Radcliffe, P
Year 2010
Conference name ICEIE 2010
Conference location United States
Conference dates August 1-3, 2010
Proceedings title International Conference on Electronics and Information Engineering
Editor(s) Venkatesh Mahadevan; Guo Zhenghe; S.R.Bhadra Chaudhuri
Publisher IEEE
Place of publication United States
Start page 151
End page 157
Total pages 7
Abstract Research in traffic classification has become more challenging with the emergence of new applications and new ways to hide the true nature of traffic. The accuracy of traffic identification methods has also become more important due to the greater use of delay sensitive applications such as VoIP and video over IP which need to be identified and given priority. Traditional techniques such as header and payload inspection are not providing sufficient information to identify traffic types due to the usage of non-standard ports, tunnelling and encryption. Promising methods have been proposed based around the statistical behaviour of traffic flow. Although these methods can achieve quite high accuracies in non-encrypted traffic flows, traffic identification of encrypted traffic flows is still in its early stages. In this paper, we will review the recent work done on encrypted traffic identification, particularly network layer encryption using statistical techniques and propose a remarkably simple technique for VoIP traffic identification in IPSec peer to peer tunnels. More importantly it is shown that VoIP/non-VoIP classification can be used to dramatically improve VoIP QoS and may be used to effectively block non-VoIP traffic in an IPSec tunnel. These results point to the usefulness of the technique and the desirability to find more disc
Subjects Control Systems, Robotics and Automation
Keyword(s) VoIP
IPSec
Tunnelled Traffic
Machine Learning
Copyright notice © 2010 IEEE
ISBN 9781424476800
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