ipv6: getting addresses, differences from ipv4 30 november 2010 7 ipv4 /8s remaining
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IPv6: Getting Addresses, Differences
from IPv430 November 2010
7 IPv4 /8s Remaining
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Regional Internet Registries
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About IPv4 and IPv6IP version
IPv4 IPv6
Deployed 1981 1999
Address Size
32-bit number 128-bit number
Address Format
Dotted Decimal Notation: 192.0.2.76
Hexadecimal Notation: 2001:0DB8:0234:AB00:0123:4567:8901:ABCD
Number of Addresses
232 = 4,294,967,296 2128 = 340,282,366,920,938,463,463,374,607,431,768,211,456
Examples of Prefix Notation
192.0.2.0/2410/8
(a “/8” block = 1/256th of total IPv4 address space = 224 = 16,777,216 addresses)
2001:0DB8:0234::/48 2600:0000::/12
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IPv4 Address Space Utilization
*as of 30 November 2010
4
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Available IPv4 Space in /8s
5
In 2010, RIRs have been allocated nineteen /8 blocks as of 30 November, leaving seven /8s unallocated (7/256 - 2.73%).
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IPv4 Depletion Situation Report• There are 7 /8s remaining in the
IANA pool as of 30 November 2010.
• Demand for IPv4 continues to grow from organizations around the world.
• Once IANA free pool depletes, ARIN’s inventory will deplete anywhere from days to months.
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What about underutilized blocks?• ARIN actively attempts reclamations
• We have reclaimed large underutilized blocks and will continue
• Our successes will not significantly extend the lifetime of the IPv4 free pool
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What if?• Current demand globally is ~24 Million IP
addresses per month• What if we have all IPv4 unicast to start
over– Counting /32s it would take ~ 12 years to fully
re-deplete the IPv4 resource
• What if we have all of IPv6 to start (we do)– Counting /64 subnets it would take ~ 768 Billion
years to deplete the resource– Counting /48 subnets it would take ~ 11.7 Million
years to deplete the resource
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IPv4 Registration Transfers• Long standing merger &
acquisitions transfer policy remains
• New policy: Transfers to specified recipients (8.3 of NRPM)
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8.3 Transfer Policy
In addition to transfers under section 8.2, IPv4 number resources within the ARIN region may be released to ARIN by the authorized resource holder, in whole or in part, for transfer to another specified organizational recipient. Such transferred number resources may only be received under RSA by organizations that are within the ARIN region and can demonstrate the need for such resources, as a single aggregate, in the exact amount which they can justify under current ARIN policies.
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IPv4 /10 Dedicated for IPv6 Deployment
• ARIN will set aside a /10 from our last/8 from IANA
• Allocations are for IPv6 transition only
• Allocation sizes: /28 minimum - /24 maximum
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IPv4 /24s are back!
• Only for multi-homed end-users
• Must still show at least 25% used immediately and at least 50% used within one year
• NRPM 4.3.6.2
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IPv6 Policies
• ISPs– Known, existing ISPs automatically qualify– /32 minimum
• Really really really big; ~4.2 Billion subnets
• End-users– Typically qualify by showing you qualify for IPv4– /48 minimum
• 65,536 subnets• Qualify for larger by showing proposed use
– Guidelines: /48 for a large site, /56 for a small site
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IPv4 & IPv6 - The Bottom Line• We’re running out of IPv4
address space.
• New demand surge could quickly deplete remaining IPv4
• IPv6 must be adopted for continued Internet growth.
• We must maintain IPv4 and IPv6 simultaneously for many years.
• IPv6 deployment has begun.
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RIRs have been allocatingIPv6 address space since 1999.
Thousands of organizations havereceived an IPv6 allocation to date.
ARIN has IPv6 distribution policies for service providers, community networks,
and end-user organizations.
IPv6 Deployment has begun
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Exhibit and Speaking EventsRecent Events• Internet Governance Forum• CompTel• State CIOs & Technology Directors• Caribbean Internet Governance
Forum• Caribbean ICT Road Shows• DEF CON• Catalyst Conference• OPASTCO• HostingCon• CANTO• InfoComm• Rocky Mountain IPv6 Summit• International Telecoms Week• Cable Show• Interop Las Vegas
Current / Upcoming• Game Developers
Conference• Texas IPv6 Task Force
Summit• Interop New York• IT Roadmap – DC• gogoNET Live!• IT Roadmap – San
Francisco• LISA• ICT Road Show Trinidad• SC’10• CES
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Attitude Shift about IPv6 Adoption• 2007: Laughter and Denial
• 2008: Skepticism
• 2009: Despair and Anger
• 2010: Moving toward Acceptance
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Sample Media Coverage
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23 July 2010
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• TeamARIN Micrositehttp://TeamARIN.net– Event Calendar– Education– Blogs– Spread the word
• Public use slide deck• Materials support
request
• ARIN IPv6 wikihttp://getipv6.info
ARIN Resource Links
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Resources– Community Use Slide Deck
– IPv6 Wiki
– Information Page at www.arin.net/knowledge/v4-v6.html
– Outreach Microsite:www.TeamARIN.net
– Social Media at ARINwww.arin.net/social.html
– ARIN Board Resolution
– Letter to CEOs
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ARIN on Social Media
Facebook – www.facebook.com/TeamARIN
Twitter – www.twitter.com/TeamARIN
LinkedIn – www.linkedin.com
YouTube – www.youtube.com/TeamARIN
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Learn More and Get InvolvedLearn more about IPv6www.arin.netwww.getipv6.infowww.TeamARIN.net
Get Involved in ARINPublic Policy Mailing ListAttend a Meeting
http://www.arin.net/participate/
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Thank You