A spontaneous network is a particular case of ad-hoc networks. They usually have little or no dependence on a centralized administration. Spontaneous networks can be wired or wireless. The authors regard as only wireless spontaneous networks in this paper. Their objective is the integration of services and devices in the same environment enabling the user to have instant service without any external infrastructure. Because these networks are implemented in devices such as laptops, PDAs or mobile phones with limited capacities they must use a lightweight protocol and new methods to control manage and integrate them.