  OMNeT++ is a widely used platform for all types of network simulations. The
open source simulation framework Artery can be used to perform Vehicular Ad Hoc
Network (VANET) simulations. This paper presents an approach for connecting
this simulation and real-world VANET hardware to extend the test range and
investigates the real-time behaviour of the simulation. As a Device Under Test
(DUT) depends on real-time data to perform properly, different simulation
scenarios running different hardware setups are presented. Additionally, the
paper deals with the impacts of real-time losses on the test run outcomes. Most
time dependant algorithms like the duplicate packet detection do not need very
accurate real-time data and thus could be verified using the presented
approach. Otherwise, in some cases such as testing of multi-hop communication,
accurate real time is crucial.
