Security is always a major concern and a topic of hot discussion to users of Wireless Mesh Networks (WMNs). The open architecture of WMNs makes it very easy for malicious attackers to exploit the loopholes in the routing protocol. Cooperative Black-hole attack is a type of denial-of-service attack that sabotages the routing functions of the network layer in WMNs. In this paper we have focused o...

Mobile ad hoc networks are widely used networks in the present times. The nodes in such network consist of laptops, mobile phones etc. These devices often have very important information in them. Security of these networks is very vital. These networks are prone to various kinds of attacks such as black hole attack, wormhole attack, DDoS attack etc. Out of many other attacks possible, black hol...

Wireless networks are gaining popularity now days, as the users require wireless connectivity irrespective of their geographic position. There is an increasing threat of attacks on MANETs. Black hole attack is a security threat in which the packet is redirected to a node that actually does not exist in the network. It’s an analogy to the black hole in the universe in which things disappear. In ...

Security is always a major concern and a topic of hot discussion to users of Wireless Mesh Networks (WMNs). The open architecture of WMNs makes it very easy for malicious attackers to exploit the loopholes in the routing protocol. Cooperative Black-hole attack is a type of denial-of-service attack that sabotages the routing functions of the network layer in WMNs. In this paper we have focused o...

Mobile Ad Hoc Network (MANET) is a collection of communication devices or nodes that wish to communicate without any fixed infrastructure and pre-determined organization of available links. Security is a major challenge for these networks owing to their features of open medium, dynamically changing topologies. The black hole attack is a well known security threat in MANET. However, it spuriousl...

Security is an essential requirement in mobile ad hoc networks to provide protected communication between mobile nodes. MANETs are vulnerable to various attacks; black hole is one of the possible attacks. Black hole is a type of routing attack where a malicious node advertise itself as having the shortest path to all nodes in the environment by sending fake route reply. We attempt to focus on a...

A mobile ad-hoc network is an autonomous system of mobile nodes connected by wireless links in which nodes cooperate by forwarding packets for each other thereby enabling communication beyond direct wireless transmission range. The wireless and dynamic nature of ad-hoc networks makes them vulnerable to attacks especially in routing protocols. Providing security in mobile ad-hoc networks has bee...

Wireless and ad hoc are the striking networks these days in which many researchers are working. Basically Wireless or mobile networks are emerged to replace the wired networks from traditional scenario to new paradigm. The next trend of wireless network is quite differ than conventional wired network in many ways viz. infrastructure, cost, capacity, adaptability, easy to operate, schematizing r...

-------------------------------------------------------------------ABSTRACT-------------------------------------------------------------In mobile ad-hoc networks (MANET), the movement of the nodes may quickly change the networks topology resulting in the increase of the overhead message in topology maintenance. The nodes communicate with each other by exchanging the hello packet and constructin...