Dissertation (MSC Information Technology)This study delved on the Implementation and Performance Evaluation of the Dual Stack Transition Mechanism at the UDOM LAN. The implementation phase involved simulating the network in the GNS3 simulator in which a number of hops were varied between 1 and 6. In addition, RIPv2 and RIPng were used as the dynamic routing protocols. The protocols were configured on each router interface to enable communication between the connected routers. After the implementation and configuration, the network performance was assessed. In fact, the assessment involved a performance evaluation which used the four performance metrics. The metrics used were the End-to-End delay, jitter, packet loss and streaming time. In analyzing these metrics under the IPv4, at the UDOM Network and the Dual Stack Mechanism, the video streaming application and the open source network packet analyzer called Wireshark were used. The NAS server with the video clips was used for the streaming data and the Wireshark for the captured data. The results from the experiments revealed that, the Dual Stack Mechanism performed better on end-to-end delay, streaming time and Jitter in comparison to the IPv4 in the UDOM network. The reason behind is that the Dual Stack Mechanism contains the IPv6 protocol header that was designed to support the high processing speed of the packets in the routers. In actual fact, Dual Stack Mechanism reduced the functionality of the NAT in the networks and allowed the direct end-to-end connectivity between the remote devices. It was further shown that, the IPv4 in the UDOM network performed better on the packet loss compared to the Dual Stack. In fact, this happened and happens because the Dual Stack has many complications which include excessive time for translating instructions in routers.