Date Added: Jul 2011
IPv4 is a foundation of Internet communication. Designed many years ago the protocol is inadequate in modern networks. New sixth version is replacing the older one. It is often repeated that IPv6 was designated to solve some security problems. This statement is true only to some extent. IPv6 deployment for the future infrastructure IPv6DFI (especially in the transition phase) will have large impact, not always positive on many aspects of Internet services: network performance, data security, economy.