Cisco Packet Tracer
Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.
Vanet
A vehicular ad hoc network (VANET) consists of groups of moving or stationary vehicles connected by a wireless network. Until recently the main use of VANETs was to provide safety and comfort to drivers in vehicular environments.