A wireless Adhoc networks is the collection of wireless nodes that can co-operate by forwarding packets for each other to allow nodes to communicate directly. The deployment of Ad-hoc networks in security- and- safety in critical environments requires secure communication primitives. As WSN�s become more and more crucial to everyday functioning of the people. Securing in wireless ad-hoc networks is a challenging task. Low power wireless networks are an existing research direction in routing and security. This paper discusses a wide variety of vulnerabilities while routing and different existing securities to mitigate them.

Security, Vulnerabilities, WSN, Ad-Hoc Networks,Routing, Packet Forwarding

[1]. C. Perkins and P. Bhagwat, �Highly dynamic destination-sequenced distance vector routing (DSDV) for mobile computers,� in ACM SIGCOMM, pp. 234�244, Aug. 1994.
[2]. T. Clausen and P. Jacquet, �Optimized link state routing protocol (OLSR).� IETF Request for Comments 3626, 2003.
[3]. T. Clausen, G. Hansen, L. Christensen, and G. Behrmann, �The optimized link state routing protocol, evaluation through experiments and simulation,� in IEEE Symposium on Wireless Personal Mobile Communications, Sept. 2001.
[4]. L. Viennot, �Complexity results on election of multipoint relays in wireless networks,� tech. rep., INRIA, France, 1998.
[5]. C. Perkins, E. Belding-Royer, and S. Das, �Ad hoc on-demand distance vector (AODV) routing.� IETF Request for Comments 3561, 2003.
[6]. D. Johnson, D. Maltz, and J. Broch, DSR: The Dynamic Source Routing Protocol for Multihop Wireless Ad Hoc Networks, ch. 5, pp. 139�172. Addison-Wesley, 2001.
[7]. J. Hightower and G. Borriello, �Location systems for ubiquitous computing,� IEEE Computer, vol. 34, no. 8, pp. 57�66, Aug. 2001.
[8]. S. Basagni, I. Chlamtac, V. R. Syrotiuk, and B. A.Woodward, �A distance routing effect algorithm for mobility (DREAM),� in ACM International Conference on Mobile Computing and Networking (MobiCom), (Dallas, USA), pp. 76�84, Oct. 1998.
[9]. S. Basagni, I. Chlamtac, and V. R. Syrotiuk, �Geographic messaging in wireless ad hoc networks,� in Annual IEEE International Vehicular Technology Conference, (Houston, USA), pp. 1957�1961, May 1999. 32 Rubinstein et al.
[10]. J. Li, J. Jannotti, D. De Couto, D. Karger, and R. Morris, �A scalable location service for geographic ad-hoc routing,� in ACM International Conference on Mobile Computing and Networking (MobiCom), (Boston, USA), pp. 120�130, Aug. 2000.
[11]. R. Morris, F. Kaashoek, D. Karger, D. Aguayo, J. Bicket, S. Biswas, D. De Couto, and J. Li, �The grid ad hoc networking project.� http://pdos.csail.mit.edu/grid/, 2003.
[12]. Byran Parno, Mark Luk, Evan Gaustad, and Aridane Perrig, Secure sensor network routing: A clean-slate approach, CoNEXT, 2006
[13]. Y.-C. Hu, D. B. Johnson, and A. Perrig, �SEAD: Secure efficient distance vector routing for mobile wireless ad hoc networks,� in IEEE Workshop on Mobile Computing Systems and Applications (WMCSA), pp. 3�13, June 2002.
[14]. P. Papadimitratos and Z. Hass, �Secure routing for mobile ad hoc networks,� in SCS Communication Networks and Distributed Systems Modeling and Simulation Conference (CNDS), Jan. 2002.
[15]. Y.-C. Hu, A. Perrig, and D. B. Johnson, �Ariadne: A secure on-demand routing protocol for ad hoc networks,� in ACM International Conference on Mobile Computing and Networking (MobiCom), pp. 12�23, Sept. 2002.
[16]. M. G. Zapata and N. Asokan, �Securing ad hoc routing protocols,� in ACM Workshop on Wireless Security (WiSe), pp. 1�10, Sept. 2002.
[17]. Neeraj Kumar Pandey and Amit Kumar Mishra, "An Augmentation in a Readymade Simulators Used for MANET Routing Protocols: Comparison and Analysis", International Journal of Computer Sciences and Engineering, Volume-02, Issue-03, Page No (60-63), Mar -2014.