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IANA Update, IPv4 Allocations, etc.

This report provides an update on the recent changes made to the IPv4 registry format, including the publication of a sample XML format. It also discusses the ongoing discussions about the depletion of the IPv4 free pool and the proposed reserve of 5/8s per RIR. Other considerations, such as unallocated but used addresses and future RIRs, are also explored. Additionally, this report highlights other ongoing IANA projects, including the interim Trust Anchor Repository for TLDs and the transition plans for .arpa and in-addr.arpa.

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IANA Update, IPv4 Allocations, etc.

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  1. IANA Update, IPv4 Allocations, etc. Barbara Roseman IANA General Manager barbara.roseman@icann.org 2008 OARC DNS Workshop Brooklyn, June 2008

  2. Work Completed Recently • IPv6 transport enabled for IANA/ICANN web, DNS and mail • IPv4 registry format updated • IPv4 registry XML ‘sample’ published • AS Number registry to be updated

  3. IPv4 Registry Status • XML ‘sample’ format • http://www.iana.org/reports/2008/xml-registry-sample.html • IPv4 Free Pool • Recent allocation changes this to 182 allocated, 39 free

  4. Recent History of IPv4 Allocations • Extremely uneven, makes it difficult to project runout date • RIRs have agreed amongst themselves to only request 2 /8s per request • All recent requests have qualified for much more than 2 /8s

  5. IPv4 Free Pool Depletion Discussions • Discussions about IANA free pool • All RIR communities have active policy discussions • Appear to be converging on a reserve of 5 /8s (one per RIR) • When a request arrives that would bring IANA’s free pool to 5 /8s, the remaining /8s would be distributed to the RIRs • Still needs approval in each region

  6. IPv4 Free Pool Depletion Discussions • Discussions about RIR free pools • All RIR communities have active policy discussions • No strong consensus across RIRs about best way to manage last bits • Discussions about markets and after-market registration requirements • rPKI • Possible changes to transfer requirements • Possible changes to allocation requirements per region • Still needs approval in each region

  7. Other Considerations in Last Allocations • Unallocated but used addresses • Measurements (and anecdote) show this is a real issue • Once “difficult” networks are identified, how to distribute to RIRs (equitably) • Clashes with bogon filters as we get to the last networks • What about future RIRs (or is this a dead issue for IPv4)? • If transfer policies are adopted in the RIRs, who’s responsible for tracking the legacy address allocations (pre-RIR allocations)

  8. Additional IANA Projects • Interim Trust Anchor Repository for TLDs • Same authentication methods used for root zone changes • Discontinued once the root is signed • rPKI • In conjunction with the RIRs, simply making IANA capable of supporting what’s developed • .arpa transition and in-addr.arpa transition • Transition plan for .ARPA being coordinated with the IAB • Transition for in-addr.arpa being coordinated with ARIN • Automation for in-addr updates also being worked on

  9. Thank You!

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