Gopakumar Kurup

Performance analysis of MIPL based Mobile IPv6 testbed

The next generation Internet architecture requires mobile communication devices to have continuous Internet protocol version 6 (IPv6) network connectivity in wireless environments. The IETF mobile IPv6 standard is the protocol designed to support seamless mobility. Mobile IPv6 performance analysis and optimization are active areas of research for peer to peer (P2P) voice and video applications over IPv6. This paper surveys and evaluates the Mobile IPv6 implementations available today. A native mobile IPv6 testbed network was designed and configured using the MIPL implementation. Various experiments were conducted to determine handoff latency, data throughput, round trip time (RTT) and packet loss. The testbed network experiments also identify the current implementation limitations and inefficiencies. In this paper we suggest possible improvements to the current MIPL implementation.

Secured route optimization in mobile IPv6 wireless networks in terms of data integrity

Route optimization (RO) in mobile IPv6 (MIPv6) provides a mobile node (MN) to communicate with correspondent node (CN) directly, using shortest possible path and eliminate inefficient triangle routing. MIPv6 uses return routability procedure to authenticate and secure binding updates. There is no authentication and data protection method in RO when MN moving from one network to another, in RFC 3775, standard for MIPv6. In this paper, a new security method is proposed in terms of data integrity, which makes use of strong and light data encryption and using HA for key management and distribution purpose. An enhanced security algorithm is developed on top of MIPv6 RO to secure data and prepare safe communication between MN and CN. This algorithm is able to detect and prevent the attacker from modifying the data with using an encryption algorithm at a cost of a small increase in delay. The real time network test-bed is implemented to prove the efficiency of proposed method. The experimental results show that the proposed security scheme increases the security performance of the network. This gives advantage of safe communication that can significantly improve the data security in RO while maintaining the quality of other network performance.

Route Optimization Security in Mobile IPv6 Wireless Networks: A Test-Bed Experience

Route Optimization (RO) is standard in Mobile IPv6 (MIPv6) to route packets between Mobile Node (MN) and Correspondent Node (CN) using shortest possible path. It provides better bandwidth and faster transmission. RO greatly increases the security risk. In this paper, focus is given on enhanced security scheme in terms of RO based Test-bed evaluation experiment. An enhanced security algorithm is developed on top of MIPv6 RO to secure data. This algorithm is able to detect and prevent the attacker from modifying the data with using an encryption algorithm by cost of little bit increase but tolerable delay. The real-time network Test-bed is implemented to prove the efficiency of proposed method. The experimental results show that the proposed security scheme increases the security performance of the network. This gives advantage of safe communication that can significantly improve the data security of RO while maintaining the quality of other network performance.

An enhanced IPv6 Anycast routing protocol using Protocol Independent Multicast-Sparse Mode (PIM-SM)

Although the demands for finding an economical routing protocol that provides the service to the clients in shortest time and least cost are increasing. IPv6 Anycast still has a lot of issues and problems in practical applications. One of the problems is that IPv6 Anycast still does not have its own standard protocol. In this paper we develop a new Anycast routing protocol by modifying the existing multicast routing protocol because anycast and multicast have many similar properties. Protocol Independent Multicast-Sparse Mode (PIM-SM) is chosen as a basis to design a new anycast routing protocol. We next improve the design by considering the status (free or busy) of the anycast receivers as an important factor in our design. Besides the metric value of the receiver, we propose a new variable in the routing table called BMF (Best Metric Factor).