“Lost Stars” Why Operators Switch Off IPv6 · Emile Aben | February 2016 | NANOG 66 “Lost...
Transcript of “Lost Stars” Why Operators Switch Off IPv6 · Emile Aben | February 2016 | NANOG 66 “Lost...
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Emile Aben | February 2016 | NANOG 66
“Lost Stars” Why Operators Switch
Off IPv6
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CreditsNathalie Trenaman
Arne KiesslingRene Wilhelm
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IPv6All going well?
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Enabling IPv6 (Simplified)
• Get IPv6 Address Space
• Get It Routed
• Get It Used
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Google IPv6 Statistics
https://www.google.com/intl/en/ipv6/statistics.html
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IPv6 Enabled Networks
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IPv6 Enabled Networks
IPv6 Day
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IPv6 Enabled Networks
IPv6 Day
ARIN IPv4 pool drained
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IPv6 RIPEness
• Rating system to measure early signs of IPv6 deployment
• 1 star if LIRs has an IPv6 allocation
• 3 more stars possible if- Prefix is announced (visible in RIS)
- Prefix is registered in routing registry (route6 object)
- Reverse DNS is set up
http://ipv6ripeness.ripe.net/
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IPv6 RIPEness total (12,981 LIRs)
24%
30% 10%
15%
21%
4 stars
3 stars
2 stars1 star
0 stars
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IPv6 RIPEness “5th star”
• Measuring actual IPv6 deployment- Content networks: Percentage of IPv6 enabled Alexa1M
listed sites in that network, weighed by Alexa ranking
- Access networks: Percentage of IPv6-enabled users from APNIC ads-measurements
- Threshold for “5th star” has been doubled every year
Threshold 5th star LIRs4% 7,8%8% 6,8%16% 5,6%50% 3,2%
Current status at various thresholds
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IPv6Things not going so well
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Enabling IPv6
• Get IPv6 Address Space
• Get It Routed
• Get It Used
???
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False Starts?
• We found that 462 Local Internet Registries (LIRs) stopped announcing IPv6
• We contacted them all to find out why
• Within 2 weeks we received 69 survey responses- And a lot of e-mails directly sent to us
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Where are these LIRs?
0
15
30
45
60
AT BE BG CH CZ DE DK ES EU FR HU IR IT NL NO PL RU SE TR UA GB
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Awareness
• Are you aware you previously announced your IPv6 allocation to the global routing table?
0 10 20 30 40 50 60 70
yes
no
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Purpose
• What was the purpose of the announcement?
0 10 20 30 40 50
testproductiondon’t know
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Experiences
• What were your experiences during the announcement?
0 10 20 30 40 50
no problems
software issues
hardware issues
routing issues
security issues
customer complaints
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Experiences - Details (1)
• It was only a test- Announced IPv6 just for testing
- “test customer hasn't setup his test scenario“
• Hardware or software issues- New router and new set-up needed
- Documentation tools needed to keep records clean
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Experiences - Details (2)
• Lack of acceptance by other aspects of the business
• IPv6 not supported in my country
• Main engineer left- Are a lot of IPv6 deployments driven by a single person?
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Reasons
• Why did you disable your IPv6 announcement?
0 5 10 15 20 25
test
restructuring network
hardware issues
change of ISPno customer demand
political issues
bankruptcy
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Reasons - Details (1)
• No interest from customers
• Just testing- Wanted to get ready
- Switched it off until needed
• Network infrastructure changed- We changed something, didn’t re-enable IPv6 again (core
routers, data centre, …)
- Traffic moved to different IPv6 range
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Reasons - Details (2)
• Hardware or security issues- “Compatibility issues with old Cisco and new Juniper
equipment related to deployment of 6PE MPLS”
- “We were under a huge DDOS attacks all the time"
- Routers didn’t survive stress testing (IPv6 done in software)
• Service provider issues or issues with tunnel broker
• Didn’t realise that announcement stopped- Need for better monitoring tools?
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IPv4?
• Did you also stop your IPv4 announcements?
0 10 20 30 40 50 60 70
yes
no
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Plans
• When will you announce your IPv6 prefix again?
0 6 12 18 24 30
don’t know
in a few weeks
in a year
in 3 months
in 2 years
never
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Plans - Details
• Sorry - Fixed!
• Will return resources
• When customers want it
• Depends on upstream provider
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How Can the RIPE NCC Help?
• Provide more training
• Tips for addressing plans
• Pointers for best practices
• Discuss IPv6 with governments
https://ipv6actnow.org/
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Summary
• People appreciated us asking
• Still various issues- Hardware, software, upstream
• Lack of customer demand - Will customer demand for IPv6 ever exist?
• Monitoring missing
• Are issues similar for North American operators?
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[email protected]@TrainingRIPENCC