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.

Additional Metadata
Keywords flooding mechanisms, HOLSR, MPR, security
Persistent URL dx.doi.org/10.1109/CNSR.2011.32
Conference 2011 9th Annual Communication Networks and Services Research Conference, CNSR 2011
Citation
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