Malicious nodes are mounting increasingly sophisticated attacking operations on the Mobile Ad Hoc Networks
(MANETs). This is mainly because the IP-based MANETs are vulnerable to attacks by various malicious nodes.
However, the defense against malicious attack can be improved when a new layer of network architecture can be
developed to separate true IP address from disclosing to the malicious nodes. In this paper, we propose a new algorithm
to improve the defense against malicious attack (IDMA) that is based on a recently developed Assignment Router
Identify Protocol (ARIP) for the clustering-based MANET management. In the ARIP protocol, we design the ARIP
architecture based on the new Identity instead of the vulnerable IP addresses to provide the required security that is
embedded seamlessly into the overall network architecture. We make full use of ARIP's special property to monitor
gateway forward packets by Reply Request Route Packets (RREP) without additional intrusion detection layer. We name
this new algorithm IDMA because of its inherent capability to improve the defense against malicious attacks. Through
IDMA, a watching algorithm can be established so as to counterattack the malicious node in the routing path when it
unusually drops up packets.
We provide analysis examples for IDMA for the defense against a malicious node that disrupts the route discovery by
impersonating the destination, or by responding with state of corrupted routing information, or by disseminating forged
control traffic. The IDMA algorithm is able to counterattack the malicious node in the cases when the node lunch DoS
attack by broadcast a large number of route requests, or make Target traffic congestion by delivering huge mount of data;
or spoof the IP addresses and send forge packets with a fake ID to the same Target causing traffic congestion at that
destination. We have implemented IDMA algorism using the GloMoSim simulator and have demonstrated its
performance under a variety of operational conditions.
A novel routing scheme for mobile ad hoc networks (MANETs), which combines hybrid and multi-inter-routing path properties with a distributed topology discovery route mechanism using control agents is proposed in this paper. In recent years, a variety of hybrid routing protocols for Mobile Ad hoc wireless networks (MANETs) have been developed. Which is proactively maintains routing information for a local neighborhood, while reactively acquiring routes to destinations beyond the global. The hybrid protocol reduces routing discovery latency and the end-to-end delay by providing high connectivity without requiring much of the scarce network capacity. On the other side the hybrid routing protocols in MANETs likes Zone Routing Protocol still need route "re-discover" time when a route between zones link break. Sine the topology update information needs to be broadcast routing request on local zone. Due to this delay, the routing protocol may not be applicable for real-time data and multimedia communication. We utilize the advantages of a clustering organization and multi-routing path in routing protocol to achieve several goals at the same time. Firstly, IRP efficiently saves network bandwidth and reduces route reconstruction time when a routing path fails. The IRP protocol does not require global periodic routing advertisements, local control agents will automatically monitor and repair broke links. Secondly, it efficiently reduces congestion and traffic "bottlenecks" for ClusterHeads in clustering network. Thirdly, it reduces significant overheads associated with maintaining clusters. Fourthly, it improves clusters stability due to dynamic topology changing frequently. In this paper, we present the Intelligent Routing Protocol. First, we discuss the problem of routing in ad hoc networks and the motivation of IRP. We describe the hierarchical architecture of IRP. We describe the routing process and illustrate it with an example. Further, we describe the control manage mechanisms, which are used to control active route and reduce the traffic amount in the route discovery procedure. Finial, the numerical experiments are given to show the effectiveness of IRP routing protocol.