Mobile Ad-hoc NETworks (MANETs) are self-configuring autonomous networks that do not require any central authority to control and coordinate the network. Neighborhood Discovery (ND) is the process of discovering the devices that are directly reachable for communication or in physical proximity. It becomes a fundamental requirement and building block for various other applications. It is easy to abuse ND and thereby compromise the overlying protocols and applications. Thus, providing methods to mitigate this vulnerability and secure ND is crucial. This paper uses the directional antenna algorithm called as scanning based direct discovery algorithm to discover the neighbors.