MANETs use various anonymous routing protocols for hiding node identities and/or route identities from the outside observers in order to provide anonymity protection. Perhaps, existing anonymous routing protocols generate high cost or cannot offer complete anonymity protection to sources, destination and routes. To suggest high anonymity protection at a low cost, one of the proposed system is ALERT. ALERT energetically partitions the network field into zones and arbitrarily chooses nodes in zones as intermediate relay nodes, which form a non-traceable anonymous route. This partition process is called as hierarchical zone partition. In addition, ALERT hides the data initiator or receiver among many initiators or receiver to reinforce the source as well as destination anonymity protection. Thus, ALERT offers anonymity protection to sources, destinations, and routes. It also has strategies to effectively encounter the intersection and timing attacks. Experimental results display stability with the theoretical analysis, and show that ALERT achieves better route anonymity protection in a low cost which is compared with the other anonymous routing protocols.