Nowadays, some of the more exciting research areas in networking are based on cooperation between network nodes. Examples of this are ad-hoc or sensor networks, cooperative physical layer techniques known as cooperative diversity, or other new cooperative mechanisms such asCooperative ARQ. In many scenarios, this cooperation could be further exploited using new mechanisms that fall into the L2-L3 protocols, leading to a cooperative stack. These mechanisms allow an easy use of the resources of adjacent nodes to increase communication capabilities. This combines particularly well with the characteristics of wireless networks thanks to the broadcast advantage inherent in wireless transmission. This paper proposes a novel cooperative relaying scheme that exploits transmitter diversity and performs a fast path repair procedure at L2. All these operations are made transparently to the content of the forwarding tables of the nodes, thanks to the use of a new addressing scheme. This protocol could work together with other cooperative protocols such as Cooperative ARQ, leading to an integrated mechanism for frame relaying. Analytical and simulation results show that cooperative frame relaying clearly improves network resilience.