Science & Engineering Research Support soCiety (SERSC)
Mobile Ad-hoc NETwork (MANET) is a self-organizing wireless network for mobile devices. They do not need any fixed infrastructure to be configured which makes it more suitable to be used in environments that require on-the-fly setup. The present paper discusses the challenging issues in MANET routing security. It presents improved DSR, a trust-based scheme for securing DSR routing protocol in MANET using the friendship mechanism and gateway. The path which is most optimum is chosen as the final route from source to destination. The gateway nodes should not be malicious.