• ARIN's last IPv4 /8

    From Markus Reschke@2:240/1661 to All on Wed Apr 23 22:48:50 2014
    Hi!

    ARIN entered phase 4 after allocating a /10 to AKAMAI yesterday. Phase 4 means that just /8 IPv4 addresses are still available. Please see https://www.arin.net/resources/request/ipv4_countdown.html

    Regards,
    Markus

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  • From Björn Felten@2:203/2 to Markus Reschke on Thu Apr 24 00:06:26 2014
    Phase 4 means that just /8 IPv4 addresses are still available.

    Surely you mean that only *one* /8 address space is available?

    After all, that's more than 16 million addresses, right?

    And still, according to an article in a Swedish computer magazine, less than 4% of all the ISPs in the world has gone full IPv6.

    So much for letting the "market" sort it all out...

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  • From Michiel van der Vlist@2:280/5555 to Markus Reschke on Thu Apr 24 00:19:48 2014
    Hello Markus,

    On Wednesday April 23 2014 22:48, you wrote to All:

    ARIN entered phase 4 after allocating a /10 to AKAMAI yesterday. Phase
    4 means that just /8 IPv4 addresses are still available. Please see https://www.arin.net/resources/request/ipv4_countdown.html

    Wow, that is a lot sooner than expected, considering that Geoff Huston estimated this to happen on 8 april 2015: http://www.potaroo.net/tools/ipv4/

    Also see:

    https://ipv6.he.net/statistics/ http://inetcore.com/project/ipv4ec/index_en.html


    Cheers, Michiel

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  • From Michiel van der Vlist@2:280/5555 to Björn Felten on Thu Apr 24 00:29:41 2014
    Hello Bj”rn,

    On Thursday April 24 2014 00:06, you wrote to Markus Reschke:

    Phase 4 means that just /8 IPv4 addresses are still available.

    Surely you mean that only *one* /8 address space is available?

    Yes, depletion is defined as when there is just one /8 left.

    After all, that's more than 16 million addresses, right?

    2^^(32-8)=16777216 to be precise.

    But the terminology is a bit misleading. The IPv4 adresses running out is not the same as the oil running out. when the oil is burned, it is gone. But the IP adresses are not "burned", all the adresses can still be used. You just can't get any new ones.

    And still, according to an article in a Swedish computer magazine,
    less than 4% of all the ISPs in the world has gone full IPv6.

    So much for letting the "market" sort it all out...

    Indeed....

    I wonder when it will affect Fidonet. Mobile ISP's here have already resorted to CGNAT. You can forget running a fully fledged Fidonet node on a mobile device if you are not at home. You will not get a globally routeable IPv4 address when on the move. The best you can do is run a point.

    It will be a matter of time until the fixed networks will do the same...


    Cheers, Michiel

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    * Origin: 2001:470:1f15:1117::1 (2:280/5555)
  • From Michiel van der Vlist@2:280/5555 to Markus Reschke on Thu Apr 24 12:11:45 2014
    Hello Markus,

    Thursday April 24 2014 00:19, I wrote to you:


    ARIN entered phase 4 after allocating a /10 to AKAMAI yesterday.
    Phase 4 means that just /8 IPv4 addresses are still available.
    Please see
    https://www.arin.net/resources/request/ipv4_countdown.html

    Wow, that is a lot sooner than expected, considering that Geoff Huston estimated this to happen on 8 april 2015: http://www.potaroo.net/tools/ipv4/

    Ah, now see where the discrepancy comes from:

    Notes:


    "Exhaustion" is defined here as the time when the pool of available addresses in each RIR reaches the threshold of no more general use allocations of IPv4 addresses. As ARIN have already reserved a /10 for
    the transition to Ipv6 policy, the low point for ARIN is a completely depleted general use pool. For AFRINIC and LACNIC it the threshold is a total of a /11 remaining in their available address pool. This
    calculation also takes into account the redistribution of the IANA
    Global Address pool, and in the simulation of exhaustion these addresses
    are redistributed to the RIRs according to the policy.

    So Huston uses a different definition for "exhaustion" for the different RIR's. According to Huston ARIN is not exhausted yet, that will happen when all of the last /8 is also gone. Which he expects to last another year.

    APNIC and RIPE were considered "exhausted" when they reached their last /8.


    Cheers, Michiel

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    * Origin: 2001:470:1f15:1117::1 (2:280/5555)
  • From Markus Reschke@2:240/1661 to Bj÷rn Felten on Thu Apr 24 20:08:50 2014
    Hello Björn!

    Apr 24 00:06 2014, Björn Felten wrote to Markus Reschke:

    Surely you mean that only *one* /8 address space is available?

    The remaining unallocated address space is about a /8.

    After all, that's more than 16 million addresses, right?

    Yep, but not in a single /8 but in multiple smaller networks!

    And still, according to an article in a Swedish computer magazine, less than 4% of all the ISPs in the world has gone full IPv6.

    So much for letting the "market" sort it all out...

    It's a shame! About 15 years ago we've started to play with IPv6 (6bone) and right now it's a big mess. Security research just started to address issues. There is no security device handling IPv6 in a proper way.

    Regards,
    Markus

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