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Just 5 blocks of IPv4 addresses left

by Sarah Griffiths on 2 February 2011, 09:38

Tags: General Business

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Blockbuster

The central pool of net addresses is down to its last 5 ‘blocks' of IPv4 addresses, with stocks estimated to run out this Autumn.

According to the BBC, the organisation that takes care of net addresses in the Asia Pacific region, APNic, has put in a request for another batch of addresses as it has almost run out of its current stock of IPv4 addresses. When these have been dished out, there will apparently only be 5 blocks left, composed of 16 million addresses each.

It is widely predicted that the remaining stock of IPv4 addresses will run out in Autumn, although ‘godfather of the net' Vint Cerf has warned it could be as soon as late Spring.

The Internet Corporation for Assigned Names and Numbers (ICANN) reportedly confirmed the number of remaining blocks and said they will be shared out pronto between regional agencies.

According to the Beeb, a ceremony celebrating the handing over of the final blocks of addresses, known as /8s, will happen later next month.

IPv4 has not had a bad innings as its 4.3bn addresses were apparently drawn up in the 1970s, but due to the rapid growth of the net, they will almost certainly all be used up this year.

The replacement IPv6 scheme will make trillions of new addresses available but there are fears that a move towards wide spread adoption is progressing very slowly.

Axel, Pawlink, MD of Ripe, which takes care of net addressees in Europe told the Beeb: "The future growth and innovation of the internet is now reliant on deployment of IPv6. It is now more vital than ever that ISPs, organisations, governments and all other internet stakeholders begin to deploy IPv6."



HEXUS Forums :: 8 Comments

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I bet there are plenty left if you get rid of all the scam sites
I doubt that, one because many scam sites are run without knowing on other people computers, and two because a one web server can provide many different web sites without having multiple IPs.
The silly thing is IPv6 has been around for a while and isn't really any more complicated than ipv4 (its just a longer number really - Things like autoconfig and routing changes are of little interest to end users). Its just people putting it off and companies not wanting to spend money on new software development or hardware . I made my companies software run on IPv6 last year and it wasn't that hard to do.
cheesemp
The silly thing is IPv6 has been around for a while and isn't really any more complicated than ipv4 (its just a longer number really - Things like autoconfig and routing changes are of little interest to end users). Its just people putting it off and companies not wanting to spend money on new software development or hardware . I made my companies software run on IPv6 last year and it wasn't that hard to do.

It's not hard to do locally, but the interconnections, like those at peering points such as LINX, have to all be redone. Not too long ago not even the core routers supported this well, so called hardware path only worked for IPv4, so IPv6 was routed very slowly by router software. So massive investments to be done on that..

Also 99% of home routers don't support it, so how this will reach the home users is a good question..

I'm not sure how this will play out, and have a suspicion that no one really has a plan.
Gkpm
Also 99% of home routers don't support it, so how this will reach the home users is a good question..

More than 99% of home routers where manufactured after the spec for IPv6 was finalised in 1998. Most can have their firmware re-flashed if the manufacturers bothered to write an IPv6 aware firmware.

At the packet level routers don't need to be very clever. They don't need to know about all the complexities of the web, they just need to shunt packets from the external WAN interface, filter by IP address and port, modify a few bytes to do NAT, and then forward onto the internal interface. If anything IPv6 makes their job easer as they don't have to do NAT.

I Would bet that in a modern router, more than 90% of the code drives the user interface, and does peripheral things like printer sharing, with less than 10% actually shunting packets. In any case most home routers run Linux these days, which has supported IPv6 for years, so the manufactures could enable it at minimal effort on their part.

The real problem is that there are basically no ISPs who support IPv6. I usually think of my ISP (Zen) as quite forward thinking, but on the subject of IPv6, they are procrastinating. That is one of the reasons that I am holding off signing up to their FTC service.