The Hierarchical Optimized Link State Routing (HOLSR) protocol was designed to improve scalability of heterogeneous Mobile Ad-Hoc Networks (MANETs). HOLSR is derived from the OLSR protocol and implements Multipoint Relay (MPR) nodes as a flooding mechanism for distributing control information. Unlike OLSR, nodes are organized in clusters and implement Hierarchical Topology Control (HTC) messages for inter-cluster communications. Nevertheless, HOLSR was designed without security measures. Therefore, a misbehaving node can affect the topology map acquisition process by interrupting the flooding of control information or disturbing the MPR selection process. We present a taxonomy of flooding disruption attacks, that affect the topology map acquisition process in HOLSR networks, and preventive mechanisms to mitigate the effect of this kind of attacks.

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doi.org/10.1109/CNSR.2011.32
2011 9th Annual Communication Networks and Services Research Conference, CNSR 2011
School of Computer Science

Cervera, G. (Gimer), Barbeau, M, Garcia-Alfaro, J. (Joaquin), & Kranakis, E. (2011). Mitigation of flooding disruption attacks in hierarchical OLSR networks. Presented at the 2011 9th Annual Communication Networks and Services Research Conference, CNSR 2011. doi:10.1109/CNSR.2011.32