Detecting IP spoofing by modelling history of IP address entry points

  • Authors:
  • Michal Kováčik;Michal Kajan;Martin Žádník

  • Affiliations:
  • IT4Innovations Centre of Excellence, Faculty of Information Technology, Brno University of Technology, Brno, Czech Republic;IT4Innovations Centre of Excellence, Faculty of Information Technology, Brno University of Technology, Brno, Czech Republic;Cesnet, Prague, Czech Republic

  • Venue:
  • AIMS'13 Proceedings of the 7th IFIP WG 6.6 international conference on Autonomous Infrastructure, Management, and Security: emerging management mechanisms for the future internet - Volume 7943
  • Year:
  • 2013

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Abstract

Since a lot of the networks do not apply source IP filtering to its outgoing traffic, an attacker may insert an arbitrary source IP address in an outgoing packet, i.e., IP address spoofing. This paper elaborates on a possibility to detect the spoofing in a large network peering with other networks. A proposed detection scheme is based on an analysis of NetFlow data collected at the entry points in the network. The scheme assumes that the network traffic originating from a certain source network enters the network under surveillance via a relatively stable set of points. The scheme has been tested on data from the real network.