IPv4 Depletion and IPv6 Adoption Today Richard Jimmerson
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IPv4 Depletion and IPv6 Adoption Today
Richard Jimmerson
History of the Internet Protocol • Internet Protocol version 4 (IPv4)
– Developed for the original Internet (ARPANET) in 1978 – 4 billion addresses – Deployed globally & well entrenched – Allocated based on documented need
• Internet Protocol version 6 (IPv6) – Design began in 1993 when IETF forecasts showed IPv4
depletion between 2010 and 2017 – 340 undecillion addresses – Completed, tested, and available since 1999 – Used and managed similar to IPv4
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IPv4 Depletion Situation Report
Each RIR received its last /8 from IANA on 3 February 2011
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The IANA free pool of IPv4 addresses reached 0%
Global IPv4 Depletion
IANA IPv4 Space in /8s
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Regional IPv4 Depletion
APNIC reached its final /8 in 2011 & RIPE NCC in 2012
ARIN, LACNIC, & AFRINIC to follow
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ARIN’s IPv4 Inventory ARIN still has IPv4 addresses remaining
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IPv4 inventory published on
ARIN’s website: www.arin.net
Updated daily @ 8PM ET
Why so little IPv4 left?
• The community-developed policies that manage how IPv4 is allocated and assigned did: – Extend the life of the IPv4 – BUT…IPv4 depletion is unavoidable
• Not enough addresses to meet growing need of the global Internet
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ARIN’s IPv4 Countdown Plan
• Process for final IPv4 requests – Divided into 4 phases – Length of each could vary
• Global policy to return space to IANA • Faster depletion due to:
– Large requests – Policy changes X.XX
https://www.arin.net/resources/request/ipv4_countdown.html
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IPv4 Countdown Plan
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IPv4 Countdown Plan – Phase 3
• /16 and larger requests team-reviewed in a first in, first out fashion
• 60 days to complete payment/RSA for IPv4 requests
• IPv4 hold period moves from 6 to 3 months
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As of 26 March 2014
IPv4 Countdown Plan – Phase 4
• Begins at 1 /8 Equivalent Left
• All IPv4 requests team-reviewed and processed on a first in, first out basis
• IPv4 hold period drops to 2 months
The Solution to IPv4 Depletion
• IPv6 must be adopted for continued internet growth
• Now is the time to deploy IPv6
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IPv6 over time
ARIN IPv6 Allocations and Assignments
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IPv6 Deployment
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• RIRs allocating since 1999 • Thousands of organizations
have received an IPv6 allocation to date
• ARIN has distribution policies for – Service Providers – Community Networks – End-User Organizations
Prepare for IPv6
• The good news – Lots more addresses – IPv6 adoption = easier & more efficient network
management – Designed with security in mind
• The bad news – We’ve all got some work to do
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Everyone needs an IPv6 Plan
• Each organization must decide on a unique IPv6 deployment plan right for them – Timeline will vary – Investment level will vary
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How can you get started? • Dual-Stack your networks
– IPv6 not backwards compatible with IPv4 – Both will run simultaneously for years
• Servers must be reachable via both IPv4 and IPv6 – Mail – Web – Applications
• Do you operate a website? • Ensure content will be available to all customers • Even new Internet users with an IPv6-only address
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How can you prepare? • Talk to your ISP about IPv6 services
– You want access to the entire Internet
• ISPs must connect customers via IPv4-only, IPv4/IPv6, & Via IPv6-only
• Must plan for IPv4/IPv6 transition services
– Many transition technologies available
• Research options
• Make architectural decisions
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What else can you do?
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• Audit your equipment and software – Are your devices and applications IPv6
ready?
• Encourage vendors to support IPv6 – If not already, when will IPv6 support
be part of their product cycle?
• Get training for your staff – Free resources available
What Can Governments Do? • Government and the Internet
community need to coordinate to support and promote
– IPv6 awareness
– IPv6 education
• Governments should consider:
– Regulatory and economic incentives to encourage IPv6 adoption
– Required IPv6 compatibility in procurement procedures
– Official IPv6 deployment within agencies
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Your IPv6 Check List
IPv6 address space
IPv6 connectivity (native or tunneled)
Operating systems, software, and network management tool upgrades
Router, firewall, and other hardware upgrades
IT staff and customer service training
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Learn More
IPv6 Info Center www.arin.net/knowledge/ipv6_info_center.html
www.GetIPv6.info
www.TeamARIN.net
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Operational Guidance www.InternetSociety.org/ Deploy360/
www.NANOG.org/archives/
www.hpc.mil/cms2/index.php/ ipv6-knowledge-base-general-info
bcop.NANOG.org
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Q17. Does your organiza2on u2lize RPKI? Q18. What is your organiza2on’s current plan for IPv6 deployment? 32
RPKI and IPv6 Deployment are s2ll not the norm among ARIN community member companies.
RPKI Usage (n=699)
IPv6 Deployment (n=699)
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As of 26 March 2014
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Thank You
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