[sig-policy] prop-062-v002: Use of final /8

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  • Subject: [sig-policy] prop-062-v002: Use of final /8
  • From: Randy Bush <randy at psg dot com>
  • Date: Fri, 29 Aug 2008 13:59:12 +1200
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      Below is an updated version of the proposal that includes the amendment
      that reached consensus in the Policy SIG yesterday. Specifically,
      the proposal was amended in the following ways:
      
           - The size of allocations under this proposal be tied to APNIC's
             minimum allocation size
      
           - This proposal not be dependent on the successful adoption of
             prop-055, "Global policy for the allocation of the remaining
             IPv4 address space"
      
      
      The proposal's history can be found at:
      
              http://www.apnic.net/policy/proposals/prop-062-v002.html
      
      Randy and Jian
      
      ________________________________________________________________________
      
      prop-062-v002: Use of final /8
      ________________________________________________________________________
      
      
      Authors:   Philip Smith
                  pfs at cisco dot com
      
                  Jonny Martin
                  jonny at jonnynet dot net
      
                  Randy Bush
                  randy at psg dot com
      
      Version:   2
      
      Date:      28 August 2008
      
      
      
      This proposal contains the element of the proposal that reached
      consensus following community discussion at the APNIC 26 Policy SIG
      on Thursday 28 August 2008.
      
      
      1.  Introduction
      ----------------
      
      This proposal describes how APNIC should handle its last /8 worth of
      address space at the time of total depletion of the IANA free pool.
      
      The proposal seeks to ensure that new and existing LIRs can receive a
      minimum amount of IPv4 address space to assist with their
      participation in the Internet industry as the industry transitions to
      using the IPv6 protocol over the next few years.
      
      
      2.  Summary of current problem
      ------------------------------
      
      The IANA IPv4 address pool is diminishing rapidly and is expected to
      be totally depleted in the very near future.  The intention of the
      proposal's authors is to use APNIC's final /8 worth of address space
      to reduce the surprise incurred by new LIRs during the transition from
      the IPv4 to IPv6 protocol.
      
      The Internet will still use IPv4 for several years during the adoption
      of IPv6.  During this period new LIRs will need to participate in the
      IPv4 Internet while they deploy services using the IPv6 Internet.
      
      Inability to participate directly in the IPv4 Internet inhibits new
      LIRs' ability to provide service.  If this were to happen, new LIRs
      would have to resort to address translation devices to map the private
      IPv4 address space they use into the public address space received
      from their upstream providers.
      
      Existing APNIC policy regarding the distribution of IPv4 address space
      makes no allowance for IPv4 allocations to new LIRs after the IANA
      pool is exhausted.
      
      Without any particular policy for this address block, APNIC's normal
      IPv4 allocation rules would apply.  It is quite feasible, for example,
      that one organisation could consume the entire remaining /8 worth of
      address space held by APNIC.
      
      This policy proposal seeks to address that problem.
      
      
      3.  Situation in other RIRs
      ---------------------------
      
      As far as is known, only LACNIC has implemented a similar policy.  We
      would like to recommend that the other RIRs consider analogous
      proposals.
      
      This policy proposal applies to the APNIC service region only.  It is
      highly likely that similar policy proposals will be made in other RIR
      regions also.
      
      It should be noted that at the recent LACNIC XI meeting, consensus was
      reached on the following policy proposal:
      
           LAC-2008-04: Special IPv4 Allocations/Assignments Reserved for New
           Members
           www.lacnic.net/documentos/politicas/LAC-2008-04-propuesta-en.pdf
      
      Under the LACNIC proposal, when there is no more IPv4 address space in
      the IANA free pool, LACNIC will reserve a /12 out of their remaining
      pool.  From this /12, LACNIC will allocate /22s to new LIRs and assign
      /24s to critical infrastructure.
      
      
      4.  Details of the proposal
      ---------------------------
      
      This proposal describing the distribution of APNIC's final /8 worth of
      address space has three parts:
      
      
      4.1 New LIRs
      
           It is proposed that each new LIR receive IPv4 addresses which they
           can use for supporting legacy IPv4 services to ensure their full
           presence on the IPv4 Internet during the transition phase to IPv6:
      
               - Each new LIR may receive address space according to
                 APNIC's minimum allocation size in force at time of
                 allocation.  If APNIC's minimum allocation were to reduce in
                 size in future, the allocation made under this policy should
                 also be reduced to match.
      
               - Each new LIR may receive the specified allocation size
                 regardless of LIR size or intended membership tier.
      
               - New LIRs may apply for and receive this allocation once they
                 meet the criteria to receive IPv4 address space according to
                 APNIC's allocation policy in force at the time (currently
                 documented in [APNIC-86]).
      
           A new LIR in this proposal is defined as being an organisation
           which has recently become a full member of APNIC or a full member
           of one of APNIC's NIRs but has yet to be assigned or allocated any
           IPv4 address space.
      
           Membership of APNIC as an LIR is determined by APNIC's membership
           criteria at the time of application.  Membership of an APNIC NIR
           is determined by each individual NIR's membership criteria at the
           time of application.
      
      
      4.2 Existing LIRs
      
           It is proposed that each existing LIR may request and receive only
           a single allocation from the remaining /8 worth of address space:
      
               - Each existing LIR may receive APNIC's current minimum
                 allocation size in force at time of allocation.  If APNIC's
                 current minimum allocation were to reduce in size in future,
                 the allocation made under this policy should also be reduced
                 to match.
      
               - Each existing LIR may receive the specified allocation size
                 regardless of size or intended membership tier
      
               - Each existing LIR may apply for and receive this allocation
                 once they meet the criteria to receive IPv4 address space
                 according to APNIC's current allocation policy in force at
                 the time (currently documented in [APNIC-86]).
      
           This ensures that each existing LIR receives routable IPv4
           addresses which they can use for supporting legacy IPv4 services
           during the transition phase to IPv6.
      
           An existing LIR in this proposal is defined as being an
           organisation which is a full member of APNIC or a full member of
           one of APNIC's NIRs and has already been assigned or allocated
           IPv4 address space.
      
           Membership of APNIC as an LIR is determined by APNIC's membership
           criteria at the time of application.  Membership of an APNIC NIR
           is determined by each individual NIR's membership criteria at the
           time of application.
      
      4.3 Unforeseen circumstances
      
           It is proposed that:
      
           - A /16 is held in reserve for some future uses, as yet
             unforeseen.
      
             The Internet is a disruptive technology and we cannot predict
             what might happen.  Therefore it is prudent to keep a /16 in
             reserve, just in case some future requirement makes a demand of
             it.
      
           - In the event that this /16 remains unused in the time the
             remaining /8 covered by this policy proposal has been allocated
             to LIRs, it returns to the pool to be distributed as per clauses
             4.1 and 4.2.
      
      
      5.  Advantages and disadvantages of the proposal
      ------------------------------------------------
      
      5.1 Advantages
      
           - APNIC's final /8 worth of address space will have a special
             policy applicable to it.
      
             This avoids the risk of one or a few organisations consuming the
             entire block with a well crafted and fully justified resource
             application.
      
           - At APNIC's current minimum allocation size in force at time of
             writing, the proposal ultimately allows for 16384 LIRs (both new
             and existing) to receive exactly one /22 each.
      
             This is substantially larger than the existing APNIC membership,
             and attempts to ensure that no organisation lacks real routable
             IPv4 address space during the coming transition to IPv6.
      
      
      5.2 Disadvantages
      
           - Some organisations may believe and can demonstrate that their
             IPv4 requirements are larger than APNIC's minimum allocation.
      
             But this final /8 is not intended as a solution to the growth
             needs of a few organisations, but for assisting with the
             transition from IPv4 to IPv6.
      
           - Some organisations may set up multiple LIR registrations in an
             effort to get more address space than proposed.
      
             APNIC must be vigilant regarding these, but the authors accept
             that it is hard to ensure complete compliance.  With 16384
             possible allocations feasible from the current minimum
             allocation (at time of writing), this is not envisaged to be a
             major problem.
      
      
      6.  Effect on APNIC members
      ---------------------------
      
      This proposal allows APNIC LIRs (existing and new) to receive address
      space from the final /8 allocated to APNIC.
      
      
      7.  Effect on NIRs
      ------------------
      
      This proposal has no direct impact on the operation of the NIRs, but
      as noted in the text above, has direct impact on the ability of NIR
      members (existing and new) to receive address space from the final /8
      allocated to APNIC.