Effects of Authentication of Users in Mobile Internet Protocol Version 6

User security in the Internet has generaaly been well taken care of at the application layer. Judging from the mobility and portability of a mobile terminal and its ability to get connected to the Internet while away from home, it becomes necessary to be sure of who is using that terminal. Presently, mobility is difficult, if not impossible to detect at the application layer though easily detectable at the network layer. Therefore it becomes necessary to application layer solution to the network layer. In this thesis, a user authentication program is modeled and simulated sing Network simulator2 (NS2). Various network topologies are simulated in order to investigate the effects of implementing this program on a network for various network performance parameters. The results are stored in trace files, Tracegraph201 is used to generate plots form which data is extracted and then plotted again using Excel for comparison purposes. In this thesis, we measured the throughput against simulation time, and then the delay against throughput and event time. Comparisons are done between systems implementing authentication and those do not. The results show that the average delay is not much affected by the implementation of the program. The network performance is greatly affected by the number of packet present in the network at any given time. Nevertheless, throughput is much improved at the detriment of bandwidth, as seen from the number of dropped packets. Thus, it is recommended that user authentication be applied to mobile Internet Protocol version6 (IPv6) as a security measure. The conclusions made above are based purely on simulation results. The password system is also recommended as a viable solution for this authentication as its implementation is most convenient for mobile users. A password algortithm is proposed from which a program can be written in any language deemed suitable.