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Ϣʔβ͔ΒݟͨάϩʔόϧIPv6Խ ϗεςΟϯάϓϩόΠμ΁ͷཁ๬ ྗ෢ ݈࣍ ྗ෢݈ٕ࣍ज़࢜ࣄ຿ॴ / ϖύϘݚڀॴ 2017೥9݄30೔ ϗεςΟϯάΧδϡΞϧେࡕ Kenji Rikitake / hostingcasual-osaka-20170930 1

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ࣗݾ঺հ • @jj1bdx 1965೥ੜ·Ε • 2017೥ΑΓϖύϘݚڀॴ٬һݚڀһ • 1996೥͔ΒIPv6Ͱ༡ͼ࢝ΊΔ • 2010೥: TunnelbrokerͰIPv6઀ଓ • 2017೥: ΍ͬͱASAHI-NETͰIPv6ωΠ ςΟϒ઀ଓɺۤઅ20೥ Kenji Rikitake / hostingcasual-osaka-20170930 2

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ࠓ೔ͷ࿩ ೔ຊͷϗεςΟϯάϓϩόΠμͷօ͞Μ͸ ଈࠁશαʔϏεIPv6ରԠ͍ͯͩ͘͠͞! Kenji Rikitake / hostingcasual-osaka-20170930 3

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IPv6ʹ͢Δཧ༝ ଎͍ ΞυϨεׂΓ౰ͯͰ೰·ͳ͍ ϓϥΠϕʔτʹ͚ͨ͠Ε͹ULAͰ IETF: IPv4: End of Work ΋͏IPv4Ͱ͸৽ٕज़͸։ൃ͞Εͳ͍ Kenji Rikitake / hostingcasual-osaka-20170930 4

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IPv6͸଎͍ NTT੢೔ຊ ޫϑϨοπωΫετɾϚϯγϣϯλΠϓ + ASAHI-NET IPoE ʢ2017೥9݄29೔1830JST͝Ζൃදऀࣗ୐ͷωοτϫʔΫ্ͷMac miniΑΓଌఆʣ % ping -c 10 -s 1024 www.iij.ad.jp # IPv4 PPPoE 10 packets transmitted, 9 packets received, 10.0% packet loss round-trip min/avg/max/stddev = 15.901/16.761/19.537/1.084 ms % ping6 -c 10 -s 1024 www.iij.ad.jp # IPv6 native 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 16.192/16.671/17.117/0.264 ms Kenji Rikitake / hostingcasual-osaka-20170930 5

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IPoE IPv6͕଎͍ཧ༝ PPPoEͷτϯωϧԽ͕ෆཁ Πϯλʔωοτ͕஗͍ͷ͸PPPoE͕ѱ͍Β͍͠ NATΛ͍ͯ͠ͳ͍ →ήʔϜ΍ͬͯΔਓʹ͸ඞਢʢΒ͍͠ʣ Kenji Rikitake / hostingcasual-osaka-20170930 6

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શ෦IPv6Խͱ͸ DNS (v4/v6྆ํͷϢʔβΞΫηε) Web (HTTP/2, QUIC, etc.) ͦͷଞTCPؔ࿈શ෦ʢϝʔϧͱ͔ʣ UDPؔ࿈΋ʢ͋Ε͹ʣશ෦ Kenji Rikitake / hostingcasual-osaka-20170930 7

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֤ࣾαʔϏεͷݱঢ় Google͸QUIC΍DNSؚΊv6Խ׬ྃ Facebook΋Ͱ͖͍ͯΔΒ͍͠ ... ͦͷଞ֤ࣾ͸Ͱ͖͍ͯͳ͍Β͍͠ 2017೥8݄ͷͱ΋ͪΌͷௐࠪ݁Ռ͸ඞಡ Kenji Rikitake / hostingcasual-osaka-20170930 8

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ϗεςΟϯάͷҠߦͷ໰୊఺(1) ಉ͡αʔϏεΛIPv4/IPv6྆ํͰఏڙ͢Δඞཁ ಛʹIPv4Λ҉໧ͷ͏ͪʹԾఆ͍ͯ͠Δࣾ಺ͷ ϩάج൫΍ωοτϫʔΫ/ϗετઃܭ͕େ͖ͳ ো֐ʹͳΓಘΔ Kenji Rikitake / hostingcasual-osaka-20170930 9

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ϗεςΟϯάͷҠߦͷ໰୊఺(2) IP fragmentation (IPv6Ͱ͸΍Βͳ͍) Path MTU Discovery ͸ΞϓϦͷ੹೚ Google΋QUICͰ͜ͷ఺ͷݟ௨͕͠؁͔ͬͨ TCPͷMTUͳͲͷઃఆ͕γϏΞʹͳΔ Kenji Rikitake / hostingcasual-osaka-20170930 10

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ϗεςΟϯάͷҠߦͷ໰୊఺(3) DNSͷ໊લʹIPv4/v6྆ํ͕ରԠ͍ͯ͠Δ͜ͱ ʢ͍͍ͬͨͲͪΒΛ༏ઌ͢Ε͹͍͍?ʣ Ϣʔβʹ͸IPv4͔v6͔͸·ͬͨ͘ݟ͑ͳ͍ ΧελϚʔαϙʔτͷෛ୲͕ܹ૿͢ΔՄೳੑ Kenji Rikitake / hostingcasual-osaka-20170930 11

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ϗεςΟϯάͷҠߦͷ໰୊఺(4) ηΩϡϦςΟ …͋·Γʹ΋໰୊͕ଟ͍ͷͰৄࡉ͸·ͨͷػձʹ Kenji Rikitake / hostingcasual-osaka-20170930 12

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·ͱΊ ϢʔβͷIPv6΁ͷҠߦ͸ٸ଎ʹਐΜͰ͍Δ IPv4͚ͩͷαʔϏεͰ͸΋͏ചΕ·ͤΜ! ࠓ͙͢શαʔϏεͷIPv6ରԠΛ! Kenji Rikitake / hostingcasual-osaka-20170930 13

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͋Γ͕ͱ͏͍͟͝·ͨ͠ ࣭໰͸ @jj1bdx ΁Ͳ͏ͧ Kenji Rikitake / hostingcasual-osaka-20170930 14