Abstract
In last few years, VANET (Vehicular Ad-hoc Network) has become a miraculous field for research analysis and development. VANET is a subclass of MANET (Mobile Ad-hoc Network). MANET and VANET both are wireless networks which are featured as self-managed and ad-hoc networks. VANETs distinguish from MANETs in terms of high mobility and dynamic configuration. Because of erratic connectivity, network segregation and high mobility, information routing in VANETs becomes complicated and challenging, hence generating a requirement for effective VANET routing protocols. This article offers a summary on VANET and provides its routing protocols which intensify on vehicle to vehicle such as V2V communication. This article objectives at categorizes protocols based on routing information and comparing them resort to following parameters namely methodology utilized, advantages/strengths and restrictions.