IPv4 has reached the end of its addressable space, necessitating the deployment and execution of IPv6 protocols. Although IPv6 significantly increases addressable space in comparison to IPv4, IPv4 has not been completely phased out due to the difficulty and cost of phasing out the protocol. As such, IPv4 and IPv6 must coexist. As a result, there is a need for research into transition mechanisms that enable standards to communicate with one another. This research examined many research publications, studied transition technologies and their performance in test circumstances, compared technologies using measurement metrics, and made inferences about the selection of transition technologies. Additionally, it discusses several transition mechanisms, their advantages and disadvantages as measured by various metrics, and how these mechanisms might be adjusted.

Keywords : IPv4, IPv6, Addressable Spaces, Transition Mechanisms.