Transition to IPv6 Protocol, Where We Are?

This paper explores the main impediments that negatively affect deploying IPv6 in the Internet. Additionally, it presents the latest mechanisms and protocols that allow a smooth transition to IPv6. This could be achieved by merging the IPv6 protocol along-side with the IPv4 protocol until the IPv6 is fully deployed. The paper also presents cost-effective protocols that might lead to improve the transition process and encourage the ISPs and the end users to start using the IPv6 protocol.