Abstract-The Internet is migrating from IPv4 to IPv6. To
determine the features for research test bed product selection,
we compare the up-to-date information of IPv4 and IPv6.
Currently IPv6 network penetration is still low but it is expected to
grow, while IPv4 address pool is projected by Regional Internet
Registry to beexhausted by the end of 2011. The reason why
uptake of IPv6 is still low is because of high cost of service
migration from IPv4 to IPv6, successfully used of IPv4 Network
Address Translation for Intranet and unproven return of
investment in IPv6 technology. This paper aims to review few
migration path from IPv4 to IPv6 and some of the existing IPv6
products.