Tried to Provide IPv6 Only Network Stealthily at CEDEC 2015
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At the CEDEC 2015 conference in Japan, the volunteer network operations team provided a Wi-Fi network that was IPv6-only by default, without explicitly announcing it, in order to test apps and raise awareness of upcoming IPv6 requirements. Over 1,700 devices connected to the network, with 65% being Apple devices. While many devices worked with the IPv6-only network, some like Android phones could not connect due to lack of support for required IPv6 features. The unconventional network drew attention from game developers and raised awareness of supporting next-generation networks, with some starting to test their apps as a result. Traffic analysis found around 25% was IPv6, showing potential savings if mobile carriers deployed IPv6 networks.
Tried to Provide IPv6 Only Network Stealthily at CEDEC 2015
- 1. Tried to Provide IPv6 Only Network Stealthily at CEDEC 2015 Yuya Kawakami (@yuyarin) CEDEC-Net 2015 NOC
- 2. CEDEC • Largest conference in Japan for computer entertainment developers • 3 days at Pacifico Yokohama • 6,373 attendees in 2015
- 3. CEDEC-Net ★ Connectable Wi-Fi network ★ Don't afraid failure, Have a sense of fun ★ Exchange between engineers in network industry and game industry praying NOC members Wi-Fi Network for CEDEC by volunteers Equipment provided by sponsors
- 4. # of Wi-Fi Stations Max: 1713 stations by Cisco Prime Infrastructure
- 6. At such a conference IPv6 Only by default tried
- 7. Announcement of Wi-Fi * dual-stack network(cedec-net4) is also prepared
- 8. Why great? IPv6 only for non-experts stealthily by default provided a network with maybe world first ?
- 9. Why did it? WWDC 2015 - Your App and Next Generation Networks https://developer.apple.com/videos/play/wwdc2015-719/ iOS App Store requires "work with NAT64+DNS64"
- 10. CEDEC-Net 2015 External FLET'S Hikari Next (IPv6 Access NW) cedec-net4 (IPv4+IPv6) cedec-net (IPv6) (IPv6 ISP NW) IPv6 Internet IPv4 Internet IPv6 IPoE IPv6 traffic go throught to the IPv6 Intnernet NAT64+DNS64 translate IPv6 packets to IPv4 packets for IPv4 only applications DS-Lite encapsulate IPv4 packets in IPv6 and translate IPv4 private addresses to global addresses in ISP equipment IPv6 Only!!
- 12. Devices work with IPv6 Only Devices perfectly worked Devices connected to Wi-Fi but couldn't become "connected to the Internet" – Mac & iPhone (65% share) – Android → no support of DHCPv6 → RDNSS should have been provided – PS Vita – Nintendo 3DS https://en.wikipedia.org/wiki/Comparison_of_IPv6_support_in_operating_systems
- 13. Impact on Game Industry • Announced "Wi-Fi network can be used as a testbed for the future requirement of iOS App submission" to them • They noticed "Apps which cannot work with this Wi-Fi will be rejected" and started to verify their apps • Article on CEDEC-Net was published on GAME Watch and ranked 2th on a list of popular articles • We were asked to teach a procedure for building NAT64+DNS64 environment
- 14. IPv6 Traffic Download Upload avg. 25％ is IPv6 traffic
- 15. Devices in each network IPv6 Only: Red Dual-stack: Blue almost same as share of Apple devices If RDNSS is enabled, Android devices can be added approx. 65％ Devices works with IPv6 Only
- 16. DNS Query Stat 12M DNS queries counted by service providor Top 10 providers account for 75% * inc. 18K queries of ipv4only.arpa, Android uses for detect DNS64
- 17. DS-Lite Port Exhaustion used 1 IPv6 address (64512 ports) up It was likely that there are devices who could not communicate. 1400 devices are connected at that time. * differ from usage or implementation of CGN function * specially configured CGN available with 64512 port
- 18. CGN Port can be exhausted: NAT is not a permanent solution for IPv4 exhaustion Apprx. 25% traffic can be released to IPv6 if Mobile carriers deploy IPv6 It is important to try to make relationship with non-Interet industries to promote IPv6 Lesson Learned Content providers can decrease the risk of discommunication if deploy IPv6 can save 25% CGN ports but prepare for supporting them!!
- 19. iOS9.2 Release https://developer.apple.com/library/ios/releasenotes/General/RN-iOSSDK-9.2/ The ability to synthesize NAT64 IPv6 addresses from IPv4 literals was added to getaddrinfo NAT64+DNS64 issue Applications which need to use IPv4 address literal like P2P application cannot work Change in iOS9.2
- 20. For What is it Useful? 3 Mobile Careers in Japan "Approach to Promote IPv6 in Mobile Network" http://www.soumu.go.jp/main_content/000385655.pdf Amount of traffic which can be move to IPv6 and a number of IPv4 address which can be saved can be calculated by data from CEDEC-Net 2015
- 21. Related Documents • 『繋がりにくい原因』を探れ！ 〜CEDEC-Netテクニカルレビュー 2015〜 – https://cedil.cesa.or.jp/cedil_sessions/view/1323 – https://www.slideshare.net/yuyarin/cedecnet-2015 • Twitter @cedecnet のふぁぼ: 会場内外からの声 – https://twitter.com/cedecnet/favorites • CEDEC-Net 2015 で IPv6 の会場ネットワークを提供してきました – http://yuyarin.hatenablog.com/entry/2015/08/31/011205 • 「CEDEC-Net 2015」がiOSアプリ開発者に警鐘を鳴らす！ – http://game.watch.impress.co.jp/docs/news/ 20150829_718619.html • android が ipv4only.arpa. の AAAA を引く理由 – http://www.slideshare.net/twovs/192004-on-android