the present invention relates to a method for confirming the delivery of a data packet in a mesh network by sending an acknowledgement to an ingress mesh point . a mesh network comprises a plurality of mesh points that are wirelessly linked together . a data packet sent by a station is received by an imp . a mac frame is generated for transmission of the data packet and the frame is forwarded to an egress mesh point in order to provide a service by the mesh network . the mac frame includes a field comprising an imp address and an emp address . when the emp , , receives a data packet successfully , the emp or the intermediate mesh point sends an ack to the imp or preceding mesh point .