Abstract

The number of wireless networks has been growing incessantly during the recent years. Ad hoc networks transmit digital data through radio frequency or wireless communications links, which is an open medium. According to this fact it is important to gain substantial knowledge about the advantages and the drawbacks associated with them for network security purposes. According to the vulnerability of these networks (wireless Ad hoc) to malicious attacks and hackers, there seems to be a necessity to address the potential risks of using these networks.

An Ad-Hoc is a system of wireless mobile nodes that dynamically self-organize in temporary network topologies. People and vehicles can thus be internetworked in areas without a preexisting communication infrastructure or when the use of such infrastructure requires wireless extension.  

Therefore, one should focus on a proper Security Standards as well as solid secure construction. There are a vast variety of malicious attacks against mobile Ad hoc networks. In order to distinguish these attacks some classifications (attack models) are presented. Different malicious techniques against communications of the network are discussed in order to introduce the best practice, to set-up and maintain a secure mobile Ad hoc network. In this paper a solid intrusion detection system for MANET presented along with the best solution for creates a trust relation among nodes. Information gathering (Passive attack) is discussed from an ethical point of view.