This paper addresses mobile ad-hoc network (MANET) simulations with the simulation tool

network simulator NS-2. Since the simulation software does not include advanced protocols

and sophisticated mobile network nodes new implementations have been performed. Firstly, a

new mobile gateway has been introduced and secondly a standardised routing protocol has been

enhanced to manage interaction between standard mobile nodes and the newly implemented

gateway. Test simulations show that all modifications work properly and results are reasonable.