Archive for December, 2010

Erion’is pleased to announce an initial IPv6 training schedule for 2011. At the time of writing, Erion has courses scheduled in the USA, UK and Slovenia. Further dates will be announced in 2011.

  • 10th Jan 2011, Implementing IPv6, 4 days, Ljubjana, Slovenia
  • 15th Feb 2011, Implementing IPv6, 4 days, Fremont, California, USA
  • 28th Mar 2011, Introduction to IPv6, 1 day, London, UK,
  • 29th Mar 2011, Implementing IPv6, 4 days, London, UK
  • 5th Jul 2011, Implementing IPv6, 4 days, London, UK
  • 4th Oct 2011, Implementing IPv6, 4 days, London, UK

Erion is the world’s leading provider of IPv6 training. We have the largest portfolio of IPv6 training courses, covering all IPv6 topics and suitable for all audiences. In addition to our public IPv6 training schedule we also provide IPv6 training as on-site courses and we provide Erion Modular IPv6 Training which allows for a bespoke training programme to be created based on our hundreds of IPv6 training modules.

For further information please contact us on +44 (0)1422 207000, enquiry@erion.co.uk or through our web-site contact form.

Copyright Erion Ltd 2011, all rights reserved. Permissionto publish this article unchanged is hereby given.


Erion was a case study at the EU’s workshop on IPv6 training in Ghent, Belgium earlier this week. At the event, Erion’s David Holder presented the opening talk.

In his presentation, David set out to the lessons learned by Erion in over 12 years of providing IPv6 training. He described how Erion set about becoming the world’s leading IPv6 training company with the world’s most comprehensive set of IPv6 training courses and how they came to achieve this.

His presentation slides can be found here, Erion Case Study of World-Leading IPv6 Training Company at EU IPv6 Curricula Day Presentation. Please contact us if you have any questions.

This article is copyright Erion Ltd 2010, all rights reserved.


Today four IPv4 address blocks (/8’s) were allocated by IANA. This leaves only seven blocks to be allocated to the Regional Internet Registries (RIRs). RIR policy states that when the central pool reaches five blocks, the remaining blocks will all be immediately allocated. This means that the final allocation is likely to be to APNIC (Asia Pacific Network Information Center) in January 2011. APNIC’s usual allocation is due in two weeks but will almost certainly be delayed until the New Year.

This means that IPv4 exhaustion will finally be reached in early 2011, just as was predicted. From then on everyone who requires IPv4 addresses will only be able to use exisiting stocks. RIRs have a stock of IPv4 addresses that will last for a number of months. Some ISPs also have stocks that will keep them going for several months.  If you are unfortunate enough to require IPv4 addresses and your local RIRs and ISPs have exausted their stock, then you will no longer be able to get any public IPv4 addresses.

Public IPv4 addresses are necessary to connect to the global Internet. Whilst large numbers of networks use “Intranet” addresses, internally these cannot be connected directly to the Internet,  so at some point public IPv4 addresses are essential. Furthermore, many applications and services must use public IPv4 addresses. This means that if you cannot get public IPv4 addresses for your organisation, you could face serious problems for your Internet connectivity and Internet services.

The long term solution is IPv6. IPv6 has almost limitless address space and is available in all modern operating systems and network equipment. There is no doubt that the exhaustion of IPv4 addresses will result in a rush to migrate to IPv6.

Erion Ltd

Erion Ltd is the world-leader in IPv6 training with the world’s most comprehensive portfolio of IPv6 training courses. Erion has also been providing IPv6 consultancy services for over twelve years. Erion is ready to help you learn about and implement IPv6.

Copyright Erion Ltd 2010, all rights reserved.