Archive for April, 2011

  • tech•ed and the IPocalypse: What you need to know.

    Date: 2011.04.01 | Category: ipv6, networking, planning, setup, tech•ed 2011, wireless | Response: 0

    As planning for tech•ed 2011 in September this year has formally commenced I’m again in the role of being responsible for the technology across the whole event (including the Australian Partner Conference).

    Each year I’ve challenged our technical team to try something risky to keep us honest about leading with first rate technology implementation and practice. You can see our success on numerous articles across writing service that does have really top-notch writers who always are ready to provide a wholly original and perfectly written piece and on this blog.

    The first challenge I’ve identified this year is to move the whole event from a NAT’d network to a full blown public routed network, similar to what you see with an ISP. We’ve based this looking at last years usage pattern on our networks , and after some research we’ve come to this conclusion due to the lack of sensibly priced devices that can support 8000+ clients with many port mappings.

    To some extent we achieved part of this last year with giving everyone a public routable ipv6 address with all ipv4 still being NAT’d. Our key requirement to support approximately 2500 delegates a few hundred staff and many, many ip enabled devices it to acquire a large range of pubic ip’s in the order of a /19,  /18 or /17 giving us 8192 or 16384, 32768 respectively, possible clients to support (if you don’t understand see CIDR).

    Now the impending exhaustion of ipv4 address space commonly referred to as the IPocalypse you can imagine this kind of addressable space is not easily obtainable  – and can sometimes even go for a high price .  Last year we requested a temporary allocation from APNIC out of their portable/temporary range, which we used for a couple of weeks and shortly after returned. As a side note that same temporary range was used by LinuxConf in Brisbane a few months later, however sites like still cached the Microsoft tech•ed entry at the event…

    In our manner of planning ahead, last week we initiated our request to APNIC for a /17 or /18 or /19, as well as a temporary ipv6 allocation.. This was the response from APNIC.(note that the names and contact details have been scrubbed to protect the not so innocent – of course read from the ) ;

    From: xxxxx@xxxxx
    Date: Wed, Mar 23, 2011 at 11:47 AM
    Subject: [APNIC #XXXXXX] Temporary IPv4 and IPv6 allocation for Microsoft TechEd
    Dear XXXXXXX,
    Thank you for your email reply.
    There is no IPv4 address space available for temporary allocation.
    This reserved address space is no longer available as it has been placed
    back in the APNIC free pool for distribution.
    Please let us know if you wish to continue to obtain a temporary /48
    IPv6 assignment from APNIC.
    We look forward to hear back from you.
    If you have and further questions, please let us know.
    Kind Regards,
    APNIC       sip:
    * Sent by email to save paper. Print only if necessary.
    On Wed Mar 23 10:06:01 2011, xxxx@xxxx.xx wrote:
    > Hi XXXX,
    > What is the largest v4 block you can offer?
    > I was under the understanding that APNIC had a block of space parked for
    > temporary uses like this event (the netblock we used at TE last year was
    > used at LinuxConf this year).
    > XXXXXX.
    > On Wed, Mar 23, 2011 at 10:01 AM, XXXX XX via RT  wrote:
    > > Dear XXXXX,
    > >
    > > Thank you for your email.
    > >
    > > In regards to your request, due to the APNIC reaching Stage 2 of the
    > > IPv4 Exhaustion plan, APNIC are unable to provide a temporary /17 IPv4
    > > allocation.
    > >
    > > However, we are able to provide you a temporary /48 IPv6 assignment.
    > >
    > > Please let us know if you wish to continue to obtain a temporary /48
    > > IPv6 assignment from APNIC.
    > >
    > > We look forward to hear back from you.
    > >
    > > If you have any questions, please let us know.
    > >
    > > Kind Regards,
    > >
    > > --
    > > _____________________________________________________________________
    > > APNIC       sip:
    > >                 phone:
    > >                                       fax:
    > > _____________________________________________________________________
    > >
    > > * Sent by email to save paper. Print only if necessary.
    > > On Tue Mar 22 11:39:03 2011, wrote:
    > > > Hi there,
    > > >
    > > > We are in planning stages for Microsoft TechEd 2011 to be held in the
    > > > Gold Coast Convention Centre this year. As per last year we would like
    > > > to obtain a temporary allocation for use at the event.
    > > >
    > > > We are seeking the following:
    > > >
    > > > * IPv6 /48
    > > > * IPv4 /17
    > > >
    > > > The earliest date we would be using these addresses is the 1st of July
    > > > 2011.
    > > >
    > > > We would return the addresses on the 16th of September 2011.
    > > >
    > > > Could you please advise what you require for this allocation and when
    > > > it might be approved so that we can do our physical network design.

    So that’s it then – no more ipv4 space for us. We’ve committed to the path of deploying a fully routed network so it looks like it will be an:  IPv6 ONLY network!

    We are working really hard to make sure that the key resources for the event (the schedule builder, for example) are available over IPv6.

    As for other purposes not directly related to the event, we will not be offering IPv4 connectivity.

    There will be an option to purchase time on Telstra NextG USB dongles at the event and we are working hard on coming up with a good sponsorship arrangement to help out with the cost of IPv4 network access during tech•ed.

    – Jorke and the network team aka David Connors