Abstract: - Vehicular Ad Hoc networks are a challenging and interesting research area recently used due to high reliability of networks, low cost, increasing functionality and capability to handle faults. Vanet networks are organised by themselves and a wireless medium used for exchanging data to one another. Nodes can be added or removed by the network automatically whenever used. This capability of Vanet networks increase the performance and make network reliable and easy to use. Vanet are recognizing communication between transport vehicles and stimulate safety on roads. Due to increasing transportation and vast technology rad safety is much more required to transmit data efficiently. Different types of protocols are renders in Vanet that ensures the end to end delivery of data and provides better mechanisms to transport data with proper security. Huge types of protocols are used like ad hoc, geocast, broadcast and multicast. When transferring data security issues arise. For this purpose various security tracts are implemented to deliver data with efficiently. In this paper various protocols and security mechanisms are renders.

Keywords: Vehicular ad hoc networks, Routing protocols, Security.

| DOI: 10.17148/IARJSET.2022.9516