DENVER-- When it comes to IPv6, this much is clear: Fourteen years after the protocol was first deployed, progress...
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has been made. But proponents readily concede they have a long way to go before the standard replaces IPv4 as the method of choice within ISPs and enterprise networks.
Some wonder why they should have to re-engineer their network just because there is something wrong with the Internet.
senior technical marketing manager, SolarWinds
The biggest challenge is the industry itself, according to IPv6 Forum President Latif Ladid. "The enemy [that stands in the way of deployment] is the Internet community itself," he said. "We still have to convince the right people to make it happen."
Imperative for IPv6 to take root
That said, IPv6 backers believe the flood of mobile devices and the advent of Internet-aware gadgets ranging from automobiles to medical sensors make it imperative for the protocol to take root. IPv4 is quickly running out of addresses-- the remaining U.S. blocks are expected to be exhausted in the next 18 months -- and IPv6's 128-bit addressing scheme, in combination with improvements in security and performance, make it a compelling preference, advocates say.
"The Internet is upon us," Vint Cerf, Google Inc.'s chief Internet evangelist, said in a video presented at the Summit. "Mobile and set-top boxes -- the other proliferating [challenge] is automobiles, instrumentation, medical devices -- all of this will flow into the Internet; it's a large and challenging scope," he said. Some vendors are projecting as many as 50 billion devices will be connected to the Internet by 2025, a sum that simply can't be managed by the IPv4 protocol or by methods used to enable address sharing.
Deployment is only half the battle, however. Nephos6 CEO and President Ciprian Popoviciu said enterprise and ISP executives also have to be able to measure IPv6's effectiveness in order to gauge ROI. "If you're serious about IPv6, you can't just deploy it without seeing whether it's effective. You need to talk about deployment and efficiency. The key question is not whether or not to enable IPv6. It is, 'We enabled it. Then what happened?'"
Overcoming objections to IPv6 implementation
The ability to gather verifiable and repeatable results from their IPv6 migration is just one tool engineered to help enterprises and ISPs overcome their objections about adopting the protocol.
Another is the rollout of Dynamic Host Configuration Protocol Version 6 (DHCPv6) fingerprinting, which is used to identify the devices running on an IPv6 network.
"It won't solve all the problems" with managing multiple devices on a network, "but it will help," said Tom Coffeen, chief IPv6 evangelist at InfoBlox Inc. The vendor is working with the University of New Hampshire Interoperability Lab to develop a DHCPv6 database that enterprises can use to exploit the value of the addressing scheme. "We need to manage the wireless devices that are being developed and need to be addressed," he said, adding that the protocol provides much greater detail about devices without requiring any additional overhead. It also supports the generation of more detailed reports that permit the development of more efficient policies, he said. These are all critical components as bring your own device, or BYOD, gains additional traction.
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2011 IPv6 Summit from the Rocky Mountain IPv6 Task Force
Coffeen said he hopes the catalog, which will be akin to the Fingerbank database that supports IPv4 standards used to identify network devices, will be operational later this year.
An informal survey SolarWinds conducted with its customers regarding their IPv6 implementation intentions, for example, found the vast majority of responders have no immediate plans to proceed, said Patrick Hubbard, SolarWinds' senior technical marketing manager.
"The benefits are not totally understood," Hubbard said. "The findings indicate that there is a disconnect between IT and top management. Some wonder why they should have to re-engineer their network just because there is something wrong with the Internet."
But top management has to be convinced to move forward, Hubbard said. Sunny Connection Networks consultant Silvia Hagen echoed Hubbard's contentions, saying that the protocol's advantages outweigh reservations.
"IPv6 has benefits that go beyond 128-bit addressing," Hagen said. "The new address architecture offers opportunities we never had with IPv4. Use IPv6 as an opportunity to clean up your network, and if you are launching new services, go with IPv6 only where ever you can.
"IPv6 is not easy; if you want to use the opportunities and minimize investment by using natural lifecycles, implementation will take at least three years, so planning is essential. But it offers lots of improvements."
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