This document summarizes Finland's efforts to promote IPv6 adoption. It discusses the formation of the Finnish IPv6 Task Force to develop recommendations for IPv6 implementation. It also describes Finland's national IPv6 launch in 2015, where major ISPs enabled IPv6 for over 5 million broadband subscriptions. As a result, IPv6 usage increased significantly. The document discusses challenges faced during the transition like upgrading network equipment and changing attitudes. It concludes that while work remains, the launch was successful and IPv6 introduction costs can be limited by starting with easier implementations.

1. An IPv6 Case Study: Finland
ION Conference, Malta 18.9.2017

2. |
To regulate or not to regulate?
18.9.2017Klaus Nieminen 2

3. |
The Finnish IPv6 Task Force
FICORA working group
Group of 67 IPv6
experts and advocates
» IETF, industry and ISP
experts
» some of them even you
might know
The group has been
active ≥ 10 years
» And now its work is
more or less done
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4. |
Recommendation for implementing IPv6
in consumer broadband subscriptions
FICORA published a recommendation to promote
the introduction of IPv6 to consumer broadband
subscriptions in 2014.
» The recommendation was prepared by the Finnish IPv6
working group and is available only in Finnish.
Some highlights
» All additional services such as email, webpage and
security should work with both IPv4 and IPv6
» /56 prefix for end users
» Recommendations e.g. for security, subscription
identification, CPE support, lease times, packet
filtering, transition (6rd) and informing end users
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5. |
Finnish IPv6 launch
The launch date was 9.6.2015
» It is still open for anyone who wants to participate
The requirement for participating the launch is
» to take IPv6 into use permanently
» in broadband subscriptions, websites or services
» The participation is possible also with selected
broadband technologies, websites or content services.
For more information
» www.ipv6now.fi
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6. |
The Finnish IPv6 launch was
organized with partners:
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7. |
Finnish IPv6 launch participants
Broadband Service Providers
• 8 ISPs including all 3 major ISPs
Content and web service providers
• 16 hosting providers, media and private
companies and organizations.
• Including the national broadcasting company Yle
and 2 of the top 5 websites
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We had two participation categories

8. |
What did we achieve?
0,4 %
10 %
16,6 %
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9.6.2015 IPv6 was enabled in more than 5
million consumer broadband subscriptions
Also many content and hosting providers joined
IPv6 usage raised from 0,4 % to 7 % and is still
getting higher while more UEs support IPv6
Before
launch
After
1 year
Today
IPv6 adoption
in Google's
measurements

9. |
Challenges and how to tackle them?
Attitude and myths
» education (IPv6 – myths and answers)
How to motivate ISPs and content providers?
» public/peer pressure
» demonstrate benefits
How to make the benefits more concreate
» both user and ISP benefits
Network equipment and CPE support
» require IPv6 from all new equipment
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10. |
Lessons learned
IPv6 introduction costs money
» yes, but impacts can be limited by introducing IPv6
first where it is easiest to get up and running
» everyone can take the 1st steps
Security
» no real security problems were detected
» less problems with IP address scanning – dramatic
effect on paging load in mobile networks
Work still needs to be done to enhance IPv6
support with CAPs and CPEs
» it is getting better all the time
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11. DNA’s IPv6 history & statistics
Public 11Kimmo Liikonen | 24.08.2017
 DNA participated to Finnish national IPv6 launch (9.6.2015)
 Enabled IPv6 for mobile, cable, DSL and Ethernet subscribers
 Two years after the launch: 66% of 4G connections are dual-stack
enabled
 ~20% of mobile traffic is carried via IPv6 (peak IPv6 traffic tens of gigabits)
 ~12% of cable traffic is carried via IPv6 protocol
 ~6% of DSL and Ethernet traffic is carried via IPv6 protocol
 Capex savings in Carrier Grade NAT
Increased by 2 400 % from 9.6.2015

12. Public 12Kimmo Liikonen | 24.08.2017
 Attitude of employees was the biggest challenge when enabling
IPv6, there was a lot of fear against it
 Challenges in cable network
 DNA had cable modems (CPE’s) that did not support fast path for IPv6
protocol. There were also some performance issues with IPv6 that
needed help from chipset vendor.
 Challenges in mobile network
 It took a long time for mobile phone vendors to switch ipv4v6 dual-stack
to be enabled as default
 Many mobile operators does not support dual-stack for inbound roaming
according to the GSMA IR.21 documentation
 dual-stack works mainly in Finland. DNA has patched HLR to send
IPv4 profile for foreign operators. Currently 10 of DNA’s roaming
partners support dual-stack in roaming.
 DNA mobile packet core vendor only supports /64 prefix per subscriber
DNA’s IPv6 history & statistics

13. Public 13Kimmo Liikonen | 24.08.2017
 Challenges in DSL
 Some old DSLAM’s in DNA’s network doesn’t support IPv6
 Old CPE devices doesn’t support IPv6
 Stateful IPv6 firewall is not supported in CPE’s
 Future development
 More support for dual-stack from foreign operators -> IPv6 will work
better for outbound roamers.
 Currently DNA is testing 464XLAT for mobile subscribers to simplify
addressing and IP network configuration
IPv6 challenges and future development

14. www.ficora.fi
Klaus.nieminen@ficora.fi