The internet work when data get transferred between hosts in packets that are routed across networks as specified by routing protocols and these packets require an addressing scheme to specify their source and destination.
On June 6, 2012 World IPv6 were Launched. World IPv6 Launch 2012 brings together “major Internet service providers (ISPs), home networking equipment manufacturers and Web companies around the world… to permanently enable IPv6 for their products and services” .The new protocol will expand the Internet from its current four billion IP addresses to over 340 trillion, trillion, trillion addresses.
“The support of IPv6 from these thousands of organizations delivers a critical message to the world: IPv6 is not just a ‘nice to have’; it is ready for business today and will very soon be a ‘must have,'” said Leslie Daigle, Chief Internet Technology Officer, Internet Society. “We believe that the commitment of these companies to deploy IPv6 will ensure that they remain industry leaders. Any company wishing to be effective in the new Internet should do the same.”
“Now thousands of companies and millions of websites have now permanently enabled the next generation of Internet Protocol (IPv6) for their products and services,” the Internet Society, an advisory panel, said.
Some analysts say there may infuriation for people using older equipment, because the “path” to websites using compatible equipment may be different.
But Johannes Ullrich of the SANS Technology Institute said the transition appeared to be going smoothly.
“So far, there are no big issues with the IPv6 transition,” he told AFP.
Currently IPv4 networks continue to work as before. Organizations that don’t have an immediate need for more IP addresses will be able to continue operating their networks based on IPv4. But ISPs need a continuous flow of fresh IP addresses to hand out to new customers. Ones with high growth have an especially tough decision to make once they run out of IPv4 addresses and new ones are no longer available from ARIN, the RIPE NCC, or APNIC in Asia and the Pacific.
Because 72.8 percent of the pageviews don’t support IPv6 yet, giving new customers just IPv6 is not an option at this time. Address trading is a possibility, but certainly not a long-term one. Probably the most attractive option for ISPs that find themselves without enough IPv4 address space is to have multiple customers share a single IPv4 address through Network Address Translation (NAT).