Security Study of MPR Nodes in OLSR Routing Protocol
Zhenxing Wang · Computer Technology and Development · 2011
OLSR(optimized link state routing protocol) is a first response routing protocol.The MPR(Multi-Point Relays) nodes are vulnerable to malicious attacks and the routing protocol will result in serious crash.In response to this security risk,present program of MPR nodes against attacks:technology of message encryption and message frequency detection.Technology of message encryption encrypts HELLO messages which are broadcasted to prevent the attack nodes;Technology of message frequency detection detects the frequency of HELLO messages,and if the frequency is too large,you can charge the HELLO message as a malicious node.Simulation results show that this scheme can effectively resist the attack of the MPR nodes to ensure the safety of OLSR routing protocol.