Mr Pawlik said there would not be chaos once the IPv4 addresses were used up.
Based on 30-year-old technology, IPv4 is causing an Internet address shortage because it assigns 32-bit addresses.
The main criticism of IPv6 is that it requires a difficult and time-consuming migration from IPv4.
While IPv4 supports 4 billion addresses, IPv6 supports 340 trillion trillion trillion possible addresses.
ISPs will provide this access using one of many technologies designed to facilitate the transition from IPv4 to IPv6.
The protocol then automatically sets up a tunnel over IPv4 to carry communications to other users with IPv6 addresses.
This expansion is necessary because the current number of addresses under Internet Protocol version four (IPv4) is gradually being exhausted.
The internet was built on version 4 of the Internet Protocol (IPv4) which has an upper limit of about four billion addresses.
Of course, users who have native Internet connectivity using IPv6 will still need the ability to access resources that today only support IPv4.
However, he said, it made sense to start switching as the technical work-arounds to cope with a lack of IPv4 addresses were unwieldy and limited.
Cisco Systems is helping enterprises prepare for the migration to IPv6 (Internet protocol version 6) from IPv4, which most of the world runs on today.
FORBES: Uncle Sam Gives Cisco A Boost With New Internet Protocol
In the 1970s when IPv4 was drawn up this seemed enough but the explosion in the use of the net has led to its rapid depletion.
There are a variety of problems associated with masking IPv4 address space behind network address translation technologies, especially Large Scale NAT (LSN) or Carrier Grade NAT (CGN).
Over the next several years, then, hundreds of millions of people around the world will connect to the Internet from geographical areas that lack additional IPv4 address space.
The 6to4 protocol is the latest in a series of tools being developed by the IETF to aid in the transition of the 'Net from IPv4 to IPv6.
The problem is that the original version of Internet Protocol (IPv4), on which the bulk of the Internet has been built thus far, has a fixed capacity of 4.3 billion IP addresses.
FORBES: The Internet Gets Its First Global Upgrade: Happy World IPv6 Day
Part of the reason is cost, of course, but there has also been a lack of a sense of immediacy to the problem because of various schemes to stretch the supply of older IPv4 addresses, including sharing and recycling.
As the addresses for sending information over the internet for IPv4 will soon be exhausted, the transition to IPv6 is inevitable and many tech industry bellwethers like Cisco, Google and Verizon are helping enterprises and individuals make sure that their applications and devices can handle IPv6.
FORBES: Uncle Sam Gives Cisco A Boost With New Internet Protocol
应用推荐