We present a reliable solution for service data exchange provided by various nodes of a wireless ad-hoc networks without bothering the routing protocol mechanism. The service is defined as the entity invoked either by software, a host or a user. In recent works, the mechanism of service-discovery has been already implemented at application layer. The main idea of this work is to implement a new service discovery mechanism at the network layer without disturbing the routing protocol machine in order to cut down latency and energy consumption.