Abstract
DDoS attacks bring serious economic and technical damage to networks and enterprises. Timely detection and mitigation are therefore of great importance. However, when flow monitoring systems are used for intrusion detection, as it is often the case in campus, enterprise and backbone networks, timely data analysis is constrained by the architecture of NetFlow and IPFIX. In their current architecture, the analysis is performed after certain timeouts, which generally delays the intrusion detection for several minutes. This paper presents a functional extension for both NetFlow and IPFIX flow exporters, to allow for timely intrusion detection and mitigation of large flooding attacks. The contribution of this paper is threefold. First, we integrate a lightweight intrusion detection module into a flow exporter, which moves detection closer to the traffic observation point. Second, our approach mitigates attacks in near real-time by instructing firewalls to filter malicious traffic. Third, we filter flow data of malicious traffic to prevent flow collectors from overload. We validate our approach by means of a prototype that has been deployed on a backbone link of the Czech national research and education network CESNET.
Original language | Undefined |
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Title of host publication | Proceedings of the 9th International Conference on Network and Service Management, CNSM 2013 |
Place of Publication | USA |
Publisher | IEEE |
Pages | 227-234 |
Number of pages | 8 |
ISBN (Print) | 978-3-901882-53-1 |
DOIs | |
Publication status | Published - Oct 2013 |
Event | 9th International Conference on Network and Services Management, CNSM 2013 - Zurich, Switzerland Duration: 14 Oct 2013 → 18 Oct 2013 Conference number: 9 |
Publication series
Name | |
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Publisher | IEEE Computer Society |
Conference
Conference | 9th International Conference on Network and Services Management, CNSM 2013 |
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Abbreviated title | CNSM |
Country/Territory | Switzerland |
City | Zurich |
Period | 14/10/13 → 18/10/13 |
Keywords
- EWI-23850
- Denial of service
- Intrusion Detection
- NetFlow
- METIS-300097
- IR-87853
- Flow monitoring
- IPFIX
- Internet measurements