  VANET (Vehicular Ad-hoc Network) is a new technology which has taken enormous
attention in the recent years. Due to rapid topology changing and frequent
disconnection makes it difficult to design an efficient routing protocol for
routing data among vehicles, called V2V or vehicle to vehicle communication and
vehicle to road side infrastructure, called V2I. The existing routing protocols
for VANET are not efficient to meet every traffic scenarios. Thus design of an
efficient routing protocol has taken significant attention. So, it is very
necessary to identify the pros and cons of routing protocols which can be used
for further improvement or development of any new routing protocol. This paper
presents the pros and cons of VANET routing protocols for inter vehicle
communication.
