CanIt-PRO and CanIt-Domain-PRO both include support for IPv6 .They can accept and deliver mail via SMTP over IPv6 and perform rule lookups against IPv6 addresses and networks. In addition, all CanIt components can use IPv6 for intra-cluster communication.
IPv6 will become a "must-adopt" technology within Roaring Penguin's key client base of Universities, ISPs and MSPs. Hurricane Electric of Fremont California estimates that by February 2011 we will have exhausted the available IPv4 central registry Internet addresses. A countdown counter is available at: http://ipv6.he.net/.
IPv6 is short for "Internet Protocol Version 6". IPv6 is the "next generation" protocol designed by the Internet Engineering Task Force IETF to replace the current version Internet Protocol, IP Version 4 ("IPv4").
IPv6 fixes a number of problems in IPv4, such as the limited number of available IPv4 addresses. It also adds many improvements to IPv4 in areas such as routing and network autoconfiguration. IPv6 is expected to gradually replace IPv4, with the two coexisting for a number of years during a transition period.
For more information, visit http://www.ipv6.org/.