Analysis of the Node Isolation Attack Against OLSR-based Mobile Ad Hoc Networks

Abstract

Recent advances in wireless networking technologies have made it possible to construct a Mobile Ad hoc Network (MANET) which can be applied in infrastructureless situations. However, due to their inherent characteristics, they are much more vulnerable to malicious attacks than a conventinal wired network. In MANET, routing plays an important role in providing connectivity for mobile nodes who are not within the same radio range. Existing routing protocols in MANET assume a trusted and reliable environment. However, in hostile environment mobile nodes are susceptible to various types of routing attacks. This paper identifies a new routing attack, called Node Isolation attack, against Optimized Link State Routing (OLSR) protocol, one of the four standard routing protocols for MANETs. We analyze in detail and demonstrate the impact of this attack in order to show the necessity for a countermeasure to guard against the attack. As a first step to defend against the attack, we present a simple technique to detect the attack and identify the source of the attack.

Trust aware cooperative optimised link state routing protocol

“…Fourati and Al Agha (2006) proposed a shared secret based method has been proposed to meet the security requirements such as node authentication, maintaining the integrity of control packets, and guarding the routing process against selfish nodes. Kannhavong et al (2006) examined node isolation attacks in MANETs running OLSR protocol. They proposed that node isolation can be prevented by overhearing MPR node by setting a time limit for receiving HELLO and TC message from neighbouring nodes.…”

Performance Analysis of different Routing Protocol for WSN

“…AODV is a reactive nature of routing in which route discovery starts whenever demanded [11] and Sequence number is increased by node if new node is established to the node. Higher sequence number means to the fresh routes [12] in WSN and for avoiding routing loop problem in AODV.…”

Performance Analysis of Malicious Node Aware Routing for MANET using TwoHop Authentication

“…In [14], [15] the uses of timestamps are proposed in order to counter against replay attacks. The authors of [16] also proposed the use of signature to ensure authentication in order to prevent identity spoofing attacks. In Ariadne [17] every intermediate node appends a HMAC based on a TESLA a key that will not be disclosed at least until the destination receives the RREQ.…”