IPv6対応アプリケーション開発

2016年、大御所の IPv6 対応/ IPv6 対応義務化が目立った。
・Apple: iOS App Store 登録アプリのIPv6対応義務化
・Microsoft: Azure VM およびロードバランサの IPv6 サポート
・AWS:S3, CloudFront のIPv6サポート
アプリケーションも IPv6 対応で作る時代が本格的に到来。
本スライドは、IPv6対応アプリケーションを開発するために必要な考え方、ポイントを完結にまとめ、具体的な対応例として、PHPのサンプルコード、AppleのIPv6対応を解説します。

【IPv6対応の前提】
1. IPアドレス直書き禁止!FQDNを使用する
2. IPアドレスでユーザを識別しない
3. 同時に多数のセッションを張らない
【基本方針】
IPv6対応=IPv6/IPv4の両方で動作させること
シングルソースコードで対応する
【3つのポイント】
1. IPv4/IPv6両対応のプログラミング言語と実行環境を使う
2. 通信処理をIPv4/IPv6の両方に対応させる
3. データとしてIPアドレスを扱う箇所をIPv4/IPv6の両方に対応させる

Transcript

1. 1 *1WରԠΞϓϦέʔγϣϯ։ൃ ೥݄೔
   *1Wීٴɾߴ౓Խਪਐڠٞձ
   
   ౉ล
   ࿐จɹɹ IPv6 Summit in KANAZAWA 2016
2. ౉ล
   ࿐จʢΘͨͳ΂
   ͭΏ;Έʣ
   5XJUUFS
   !UTVZV
   ීஈ͸๭4*FSۈ຿
   ܦྺ
   ࣗࣾ*41ӡ༻ɾπʔϧ։ൃ
 㱺
   σʔληϯλʔͰͷγεςϜߏஙɾӡ༻
   㱺
   ݚڀ։ൃ
   
 㱺
   ࣾ಺Πϯϑϥͷߏஙɾӡ༻
   㱺
   ٕज़ௐࠪɾٕज़ऀڭҭɺ044ར༻؅ཧ
 㱺
   ηΩϡϦςΟ
   *1Wීٴɾߴ౓Խਪਐڠٞձ
   ձһ
   *1WಋೖʹىҼ͢Δ໰୊ݕ౼48(
   ΞϓϦέʔγϣϯͷ*1WରԠݕ౼48( 2 "CPVU
   NF
3. 3 *1W
   ʁ *OUFSOFU
   1SPUPDPM WFSTJPO
    Πϯλʔωοτͷ௨৴ʹؔ͢Δن໿ *1ωοτϫʔΫʹ઀ଓ͢Δʹ͸ͭҎ্ͷ*1ΞυϨε͕ඞཁ օ͞Μ͕ೃછΜͰ͍Δͷ͸*1Wʢྫɿʣ %P
   ZPV
   LOPX
   ʜ
4. 4 ࠓ೥݄
   "QQMF
   ͷ
 Ξφ΢ϯε 
   ͔Βɺ"QQ
   4UPSF
   ʹࡌͤΔΞϓϦ ͸ɺ*1WPOMZ
   ωοτ ϫʔΫͰಈ࡞͠ͳ͍ͱ ͍͚ͳ͍
   ΄ͱΜͲͷΞϓϦ͸Կ΋มߋ͠ͳ ͯ͘େৎ෉ͳ͸ͣ
   ΋͠ɺIPv4ݻ༗ͷAPI΍IPΞυϨε Λϋʔυίʔυͯͨ͠Βɺ ʢNetworking Overview ͷʣ ʮSupporting IPv6 DNS64/NAT64 NetworksʯΛಡΜͰରԠͯ͠Ͷ https://developer.apple.com/news/?id=05042016a
5. 5 ࠓ೥݄
   ϚΠΫϩιϑτͷ Ξφ΢ϯε "[VSF͕*1WʹରԠʂ
   ωΠςΟϒͰIPv6Λαϙʔτ ର৅ ϩʔυόϥϯα― Azure VM σϡΞϧελοΫ https://docs.microsoft.com/ja-jp/azure/load-balancer/ load-balancer-ipv6-overview
6. 6 ࠓ೥݄͓Αͼ݄ͷ
   "84
   ͷΞφ΢ϯε *1Wαϙʔτ։࢝
   Amazon S3, S3 Transfer Acceleration CloudFront WAF https://aws.amazon.com/jp/blogs/news/now-available-ipv6- support-for-amazon-s3/ https://aws.amazon.com/jp/blogs/aws/ipv6-support-update- cloudfront-waf-and-s3-transfer-acceleration/
7. 7 ࠷ۙͷྲྀΕ ࠓ೥ɺେޚॴͷ
   *1W
   ରԠʗ
   *1W
   ରԠٛ຿ Խ͕໨ཱͬͨ
   Appleɿ iOS App Store ొ࿥ΞϓϦͷIPv6ରԠٛ຿Խ Microsoftɿ Azure VM ͓Αͼϩʔυόϥϯαͷ IPv6 αϙʔτ AWSɿS3, CloudFront ͷIPv6αϙʔτ ΞϓϦέʔγϣϯ΋ IPv6 ରԠͰ࡞Δ࣌୅͕౸དྷ
8. 8 "HFOEB  *1WରԠͷ࿩Λ͢Δલʹ
    *1WରԠΞϓϦέʔγϣϯͷ࡞Γํ
    1)1αϯϓϧίʔυղઆ
    "QQMFͷ*1WରԠղઆ
9. 
   *1WରԠͷ࿩Λ͢Δલʹ  ΞϓϦέʔγϣϯΛ࡞Δ্Ͱ஌͓ͬͯ͘΂͖*1Wͷجૅ
    *1WରԠͷલʹؾΛ෇͚Δ΂͖͜ͱ 9
10. ࠷ۙͷ04
    8JOEPXT
    7JTUBҎ߱
    .BD
    04
    9ʗNBD04
    -JOVY
    'SFF#4%
    J04
    "OESPJE
    ɹʜ 10 ࣮͸*1WΛ࢖͑Δ؀ڥ͕
 ૿͍͑ͯ·͢ʢ̍ʣ ͍ͣΕ΋
    σϑΥϧτͰ
    ར༻Մೳ
11. Πϯλʔωοτճઢ
    ϑϨοπޫωΫετ
    BV
    ͻ͔Γ
    /630
    ޫ
    ɹʜ
    11 ࣮͸*1WΛ࢖͑Δ؀ڥ͕
 ૿͍͑ͯ·͢ʢ̎ʣ ར༻Մೳ
    طଘϢʔβ΁ͷࣗಈಋೖ΋
 ਐߦத ͢ͰʹɺϢʔβ͔Β͋ͳͨͷαʔϏεʹ*1WͰ
 ΞΫηε͞ΕΑ͏ͱ͍ͯ͠Δ
12. 12 ༨ஊɿ֬ೝͯ͠ΈΑ͏ʂ
 *1WͰΠϯλʔωοτʹΞΫηε Ͱ͖Δ͔ͳʁ 8FCϒϥ΢βͰ
    IUUQXXXUFTUJQWKQ
    ʹΞΫηε
    8FCϒϥ΢βͰ
    IUUQXXXLBNFOFU
    ʹΞΫηε
    *1WͰΞΫηε͢Δͱɺُ ͕གྷΓ·̇͢
13. 13 *1Wͷഎܠɿ
 ɹɹ*1WΞυϨεރׇ *1WΞυϨεͷࡏݿঢ়گ
 ʢ஍ҬΠϯλʔωοτϨδετϦʣ ௨৴ࣄۀऀɺ*41ɺ
 σʔληϯλʔɺ
 Ϋϥ΢υࣄۀऀ౳ͷ
 ࡏݿ͕࢒ΔͷΈ ੈքతʹ଍Γͳ͘ͳ͖ͬͯͨ
14. 14 ΋͸΍*1WରԠ͠ͳ͍ͱ
 ࣌୅஗Εʁ ೥݄ͷ()045૽͗ʜ ٭஫෦෼ʹ஫໨ʂ ʮgethostbyname ؔ਺͸ɺ IPv6 ͷొ৔ʹΑΓ͋·Γ
 ར༻͞Εͳ͘ͳ͍ͬͯΔʯ‼ http://www.ipa.go.jp/security/announce/20150129-glibc.html
15. 
    ΞϓϦέʔγϣϯΛ࡞Δ্Ͱ
 ɹɹ
    ஌͓ͬͯ͘΂͖*1Wͷجૅ 15
16. 16 *1Wͱ*1WͱͰ͸Կ͕
 ҧ͏ͷ͔ʁᶃ ΞυϨεମܥ͕ҟͳΔʢ*1WͷΞυϨεۭؒ͸޿େʣ
    ྫ
    *1Wʣ
    *1W׬શදهʣ EC
    *1WলུදهʣECʢ3'$४ڌʣ IPv4ΞυϨε IPv6ΞυϨε ΞυϨε௕ 32bit 128bit จࣈྻ
 දه දه๏ 8bitͣͭ۠੾Γɺ 10ਐ਺Ͱදه 16bitͣͭ۠੾Γɺ 16ਐ਺Ͱදه ۠੾Γจࣈ . ʢυοτʣ : ʢίϩϯʣ จࣈྻ௕ 15จࣈҎ಺ 39จࣈҎ಺
17. 17 *1Wͱ*1WͱͰ͸Կ͕
 ҧ͏ͷ͔ʁᶄ ϢχΩϟετΞυϨεͷߏ੒
    ΞυϨεར༻ઃܭ
    *1WͰ͸ɺωοτϫʔΫΞυϨε෦ͷ௕͞Λௐ੔
    *1WͰ͸ɺݪଇతʹαϒωοτϓϨϑΟοΫε͸ݻఆ
    ɹ 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 αϒωοτ ϓϨϑΟοΫε 64bit ΠϯλʔϑΣΠε ID 64bit ωοτϫʔΫ ΞυϨε 29bit ϗετΞυϨε 3bit Global Routing Prefix n bits Subnet ID 64 bits Interface ID 64-n bits Subnet Prefix ※ɹωοτϚεΫ 29bit
 (255.255.255.248)ͷ৔߹ ̔ ̔ ̔bit IPv4Ͱ͸ऩ༰͢Δ୺຤ͷݟࠐΈ୆਺ʹԠͯ͡࠷దͳେ͖͞ͷ αϒωοτΛઃܭ͍͕ͯͨ͠ɺIPv6Ͱ͸64bitݻఆ
18. άϩʔόϧείʔϓ *1Wͱ*1WͱͰ͸Կ͕
 ҧ͏ͷ͔ʁᶅ 18 ϦϯΫϩʔΧϧείʔϓ ϦϯΫϩʔΧϧΞυϨεɹfe80::/10 ϢχʔΫϩʔΧϧΞυϨεɹfc00::/7 άϩʔόϧϢχΩϟετΞυϨεɹ2000::/3 IPv6Ͱ͸1ͭͷNICʹෳ਺ͷΞυϨεΛ
 ɹɹɹɹɹɹɹɹɹɹɹɹ༗ޮൣғʹԠׂͯ͡౰ͯɺ࢖͍෼͚Δ
19. 19 *1Wͱ*1WͱͰ͸Կ͕
 ҧ͏ͷ͔ʁᶆ ଞʹ΋ػೳతʹ*1WͱҟͳΔ͜ͱ͕͋Δ
    ࠷΋ॏཁͳ͜ͱɿ IPv4ͱIPv6͸௚઀௨৴Ͱ͖ͳ͍
20. *1Wͱ*1Wͷ઀ଓੑ 20 Internet IPv4ରԠ
 ʢIPv6ඇରԠʣ
 γεςϜ IPv4/IPv6
 ྆ରԠγεςϜ IPv6ରԠ
 ʢIPv4ඇରԠʣ
 γεςϜ (1) (2) (3) IPv4୺຤ IPv4/IPv6
 ྆ରԠ୺຤ IPv6୺຤ IPv4 IPv6 *1W *1W *1W *1W
21. 21 *1WʹରԠ͠ͳ͍৔߹ͷ Өڹ  *1WͷΈͷ؀ڥͱ௨৴Ͱ͖ͳ͍
    ϏδωεػձΛଛࣦ͢Δ
    γεςϜ࿈ܞ͕ߦ͑ͣཁ݅Λຬͨͤͳ͘ͳΔ
     ࠓޙɺ*1W͸αʔϏεϨϕϧ͕௿Լ͍ͯ͘͠
    ௨৴ࣄۀऀ౳ʹΑΔ$(/ʢ$BSSJFS
    (SBEF
    /"5ʣ ಋೖʹΑΓɺ஗͘ͳͬͨΓɺར༻Ͱ͖Δηογϣ ϯ਺͕গͳ͘ͳͬͨΓ͢ΔՄೳੑ͕͋Δ
    IPv6ʹରԠ͠ͳ͖Όʂ
22. 22 ΞϓϦέʔγϣϯͷ*1W ରԠͷඞཁੑ ωοτϫʔΫͱαʔό͕*1WʹରԠ͢Ε͹ɺ*1WͰ઀ଓՄೳ
    ઀ଓ͸Մೳ͕ͩʜ
    ྫ͑͹
    γεςϜ࿈ܞ͕͏·͍͔͘ͳ͍
    ૝ఆ֎ͷڍಈΛ͢Δ
    ɹ
    ʜ
    ΞϓϦέʔγϣϯͷIPv6ରԠ͕ෆՄܽʂ αʔϏε͕ਖ਼ৗʹಈ࡞͠ͳ͍
 ͔΋͠Εͳ͍
23. 
    *1WରԠͷલʹؾΛ෇͚Δ
 ɹɹ
    ΂͖͜ͱ 23
24. 24 ͦͷίʔυɺΠέͯͳ͍ʜ ʢʣ ͱ͋Δ
    1FSM
    ͷϓϩάϥϜ use IO::Socket::IP; $host = “198.51.100.1”; : : my $sock = IO::Socket::IP->new( PeerAddr => $host, PeerPort => $port, Proto => 'tcp' ) or die “Error: $!\n”; : :
25. 25 ͜ͷίʔυɺΠέͯͳ͍ʜ ʢʣ ͱ͋Δ
    "OESPJEϓϩάϥϛϯάॻ੶ʹ
 ͓͚Διέοτ௨৴ͷαϯϓϧίʔυ public class SocketEx… … … ɹɹprivate final static String IP=“192.168.11.12”;//˒มߋඞਢ ྑ͍ࢠ͸ਅࣅͪ͠Όμϝ
26. 26 Ͳ͕͜Πέͯͳ͍
 ɹɹʢͱ͍͏͔ϔϯʣʁ *1ΞυϨεͷϋʔυίʔσΟϯά͸ /(ʂ IPTU
    
    lXXXFYBNQMFDPNz ͷΑ͏ʹ'2%/Ͱ઀ଓઌΛࢦఆ͢Δ μϝɻθολΠɻ
27. Internet 27 ωοτϫʔΫΞΫηεͷ
 ࡞๏ʹ໊લղܾΛ࢖͏ Client Web Server www.example.jp 2001:db8:100::1
 192.0.2.1 ݖҖDNS Server 198.51.100.53 ᶃ໊લղܾ໰߹ͤ www.example.jp ʁ ᶄΞυϨεԠ౴ www.example.jp 㱺 2001:db8:100::1
 ɹɹ192.0.2.1 ᶅHTTP௨৴ FQDN '2%/Ͱ઀ଓઌΛࢦఆ͠ɺ%/4͔ΒΞυϨεऔಘ
28. 28 ͳͥ*1ΞυϨε௚ॻ͖͕
 μϝͳͷ͔ ΞϓϦέʔγϣϯ͸ɺ*1ΞυϨεʹґଘ͢΂͖Ͱ͸ͳ͍ ໨త มߋɾվमͷཧ༝ ΞϓϦέʔγϣϯ ػೳͷఏڙ ▪ ۀ຿ཁ݅ͷมߋ ▪ αʔϏε಺༰ͷมߋ ▪ ϢʔβϏϦςΟ޲্ɹ…,etc. Πϯϑϥ ࢿݯͷఏڙ ▪ ࢿݯ؅ཧʢIPΞυϨεɺαʔόϥοΫ…ʣ ▪ ੑೳ ޓ͍ʹมߋͷӨڹΛड͚Δ΂͖Ͱ͸ͳ͍ ಉҰγεςϜͰ΋มߋɾվमͷཧ༝ɾ࣌ظ͸ҟͳΔ ྫʣIPΞυϨεͰϢʔβΛࣝผ͢΂͖Ͱ͸ͳ͍
29. $PPLJF಺ͷ৘ใʹ΋ؾΛ ෇͚Δ 29 ▪ Cookie಺ʹهࡌ͞ΕΔ৘ใͷੜ੒͕IPv4ΞυϨεΛલఏͱ͍ͯ͠Δ࣮૷ ͕ࢄݟ͞ΕΔɻ͜ͷΑ͏ͳΞϓϦέʔγϣϯʹؔͯ͠͸ɺੜ੒ϩδοΫ Λมߋ͢Δඞཁ͕͋Δɻ ▪ Cookie಺ͷ৘ใͱͯ͠IPv4ΞυϨεΛ௚઀ར༻͍ͯ͠Δ࣮૷͕͠͹͠͹ ݟΒΕΔɻಛʹೝূܥγεςϜͳͲͰ͜ͷछͷ৘ใͷऔѻ͍͕ͳ͞Εͯ ͍Δ৔߹͕ଟ͍ɻ͜ͷΑ͏ͳ࣮૷Ͱ͸ɺར༻ऀ͕IPv4/IPv6ͷ྆ํͷۭ ؒΛར༻͓ͯ͠ΓɺͲͪΒΛར༻͢Δ͔͕ҰҐʹఆ·Βͳ͍৔߹ͳͲʹ ໰୊͕ൃੜ͢Δɻ͜ͷΑ͏ͳ࣮૷ͷ৔߹ɺ୯७ʹIPv4/IPv6྆ํʹରԠ ͤ͞Δ͜ͱ͕ࠔ೉Ͱ͋Δɻ ग़యɿIPv6ීٴɾߴ౓Խਪਐڠٞձ ηΩϡϦςΟWGɹIPv6ରԠηΩϡϦςΟΨΠυϥΠϯʢୈ1.0൛ʣ
 ɹɹɹhttp://www.v6pc.jp/jp/upload/pdf/swg-IPv6SecurityGuideline_v1.0.pdf
30. 30 ষ·ͱΊ ΞϓϦέʔγϣϯ։ൃʹ͓͍ͯॏཁͳ*1Wͱ*1Wͷҧ͍
    ΞυϨεମܥ͕ҟͳΔ
    ΞυϨεར༻ઃܭ͕มΘΔ
    ෳ਺ͷΞυϨεΛ༗ޮൣғʹԠͯ͡࢖͍෼͚Δ
    *1Wͱ*1W͸௚઀௨৴Ͱ͖ͳ͍
    γεςϜͷ*1WରԠʹ͸ΞϓϦέʔγϣϯͷରԠ͕
 ෆՄܽ
    *1ΞυϨεͷϋʔυίʔσΟϯά͸μϝɻθολΠɻ
    
31. 
    *1WରԠΞϓϦέʔγϣϯͷ
 ɹ
    ࡞Γํ 
    ϓϩάϥϛϯάݴޠͱ࣮ߦ؀ڥ
    
    ௨৴ॲཧͷ*1WରԠ
    
    σʔλͱͯ͠*1ΞυϨεΛѻ͏ՕॴͷରԠ 31
32. ΞϓϦέʔγϣϯ*1W
    ରԠͷجຊํ਑ᶃ 32 ɹIPv6ରԠɹʹ ɹɹɹɹIPv4ͱIPv6ͷ྆ํͰಈ࡞͢Δ γϯάϧιʔείʔυͰରԠ
33. 33 ΞϓϦέʔγϣϯ*1W
    ରԠͷجຊํ਑ᶄ *1Wͱ*1Wͷڞଘظ͕ؒ௕͘ଓ͘
    ͜Ε·Ͱ*1WͰఏڙ͖ͯͨ͠αʔϏε͸ɺ ࠓޙ΋ܧଓͯ͠*1WͰ΋ಈ࡞͢Δඞཁ͕ ͋Δ ɹIPv6ରԠɹʹ ɹɹɹɹIPv4ͱIPv6ͷ྆ํͰಈ࡞͢Δ
34. 34 ΞϓϦέʔγϣϯ*1W
    ରԠͷجຊํ਑ᶅ ֤։ൃݴޠ͕֓Ͷ*1WʹରԠ͓ͯ͠Γɺ ϓϩτίϧʹΑͬͯ։ൃݴޠΛ෼͚Δ
 ඞཁ͕ͳ͘ͳͬͨ
    ΞϓϦέʔγϣϯͷϝϯςφϯεੑΛ
 ॏࢹ͠ɺϓϩτίϧʹΑͬͯػೳࠩҟ͕ ੜ͡Δ͜ͱΛະવʹ๷͙ γϯάϧιʔείʔυͰରԠ
35. ΞϓϦέʔγϣϯͷ*1W ରԠͷϙΠϯτ 35 Ethernet IPʢv4/v6ʣ TCP / UDP ΞϓϦέʔγϣϯ OS ϛυϧ΢ΣΞʗ
 ϑϨʔϜϫʔΫ ΞϓϦέʔγϣϯ OS ϑϨʔϜϫʔΫ HTTP/HTTPS SMTP, SSH,
 ιέοτ௨৴ͳͲ ΫϥΠΞϯτ αʔό ᶃIPv4/IPv6྆ରԠͷ
 ɹϓϩάϥϛϯάݴޠͱ࣮ߦ؀ڥΛ࢖͏ ᶄ௨৴ॲཧΛIPv4/IPv6ͷ
 ɹ྆ํʹରԠͤ͞Δ ᶅσʔλͱͯ͠IPΞυϨεΛ
 ɹѻ͏ՕॴΛIPv4/IPv6ͷ
 ɹ྆ํʹରԠͤ͞Δ
36. 
    ϓϩάϥϛϯάݴޠͱ
 ɹɹ
    ࣮ߦ؀ڥ 36
37. 37 ͜͜Ͱ͍͏*1W*1W྆ ରԠͱ͸ʁ ϓϩάϥϛϯάݴޠͱ࣮ߦ؀ڥʹ͓͚Δ *1W*1W྆ରԠͱ͸ʁ ໊લղܾػߏ͕
 IPv4/IPv6྆ํͷΞυϨεΛద੾ʹѻ͑Δ IPv4/IPv6྆ํͰ௨৴Ͱ͖Δ ͜ΕΒΛຬͨ͢ϓϩάϥϛϯάݴޠɺ࣮૷؀ڥΛར༻͢Δ
38. 38 ࣮૷্ͷཹҙ఺ ϓϩάϥϛϯάݴޠɺ࣮ߦ؀ڥͷબఆʹ͓͚Δཹҙ఺
    ࣮ࡍʹ͸֤ϓϩμΫτͰαϙʔτঢ়گʹࠩҟ͕͋ΔͨΊɺ
 ։ൃ͢ΔΞϓϦέʔγϣϯ͕ఏڙ͢ΔػೳΛߟྀ͠ɺݸผʹ൑அ ͢Δඞཁ͕͋Δ
    ϓϩάϥϛϯάʹ͓͚Δཹҙ఺
    *1W*1Wͷ૒ํʹରԠ͢ΔϥΠϒϥϦɺΦϒδΣΫτɺ
 ؔ਺ɺσʔλܕΛ࢖͏
    ैདྷʢ*1WͷΈʣͷ΋ͷͱ͸ผʹ༻ҙ͞Ε͍ͯΔ͜ͱ͕͋Δ
    $
    BEESJOGPߏ଄ମɺHFUBEESJOGP
    +BWB
    *OFU"EESFTTΫϥε
    1FSM
    *04PDLFU*1ɹɹɹɹɹɹɹͳͲ
    ΞυϨεݕূɺม׵ͳͲ͸ϥΠϒϥϦΛ༗ޮ׆༻
    
39. 
    ௨৴ॲཧͷ*1WରԠ 39
40. *1Wͱ*1Wͷ྆ํͰ௨৴ Ͱ͖Δ͜ͱͱ͸ʁ ΫϥΠΞϯτ
    *1W͓Αͼ*1WͰ
 ҙਤ͢Δαʔό΁
 ઀ଓͰ͖Δ͜ͱ αʔό
    *1W͓Αͼ*1WͰ
 ઀ଓΛड෇͚Δ͜ͱ 40 IPv6 IPv6 IPv4 IPv4
41. *1ΞυϨεΛෳ਺࣋ͭ͜ͱ ͕͋Δ 41 IPv6 IPv6 IPv4 IPv4 ෳ਺ͷΞυϨεΛ ࣋ͭ͜ͱ͕͋Δ ෳ਺ͷΞυϨεΛ ࣋ͭ͜ͱ͕͋Δ ΫϥΠΞϯτ͕ͲͷΞυϨεʹΞΫηε͢Δ͔͸
 αʔόଆͰ͸༧ଌͰ͖ͳ͍ ಛఆͷΞυϨεʹґଘͨ͠γεςϜΛߏ੒͢΂͖Ͱ͸ͳ͍
42. Internet 42 ωοτϫʔΫΞΫηεͷ
 ࡞๏ʹ໊લղܾΛ࢖͏ʢ࠶ܝʣ Client Web Server www.example.jp 2001:db8:100::1
 192.0.2.1 ݖҖDNS Server 198.51.100.53 ᶃ໊લղܾ໰߹ͤ www.example.jp ʁ ᶄΞυϨεԠ౴ www.example.jp 㱺 2001:db8:100::1
 ɹɹ192.0.2.1 ᶅHTTP௨৴ FQDN '2%/Ͱ઀ଓઌΛࢦఆ͠ɺ%/4͔ΒΞυϨεऔಘ େࣄ
43. 43 *1Wͷ໊લղܾᶃ '2%/Ͱ઀ଓઌΛࢦఆͯ͠*1WͰ௨৴Λߦ͏ʹ͸ɺ%/4ʹͯ '2%/͔Β*1WΞυϨε໊͕લղܾͰ͖Δ͜ͱ͕ඞཁෆՄܽ
    '2%/͔Β*1WΞυϨεΛ໊લղܾ
    ݖҖ%/4αʔό্Ͱ઀ଓઌαʔόͷ""""Ϩίʔυʹ*1W ΞυϨε͕ొ࿥͞Ε͍ͯΔ
    ΫϥΠΞϯτ͔Β઀ଓઌαʔόͷ""""Ϩίʔυ͕Ҿ͚Δ
    ΞϓϦέʔγϣϯ։ൃʹ͓͍ͯ͸ɺ'2%/ͷ*1WΞυϨε͕ ਖ਼໊͘͠લղܾͰ͖Δ͜ͱΛ֬ೝ͢Δ
44. *1Wͷ໊લղܾᶄ 44 Client Web Server www.example.jp 2001:db8:100::1 example.jpͷ
 ݖҖDNS Server ▪ AAAAϨίʔυʢIPv4ͷ AϨίʔυʹ૬౰ʣΛϦ ιʔεϨίʔυʹొ࿥ ᶃ໊લղܾ໰߹ͤ www.example.jp ʁ ᶄAAAAԠ౴ 2001:db8:100::1 ᶅHTTP௨৴ www.example.jp IN AAAA 2001:db8:100::1 www.example.jp IN A 192.0.2.1
45. 45 ௨৴ͷࢼߦॱং 3'$
    
    %FGBVMU
    "EESFTT
    4FMFDUJPO
    GPS
    *1W
    ༏ઌॱҐ͕มΘΔέʔε
    σϑΥϧτΛมߋ͍ͯ͠Δ؀ڥ
    3'$ʹ४ڌ͍ͯ͠ͳ͍࣮૷ IPv6 > IPv4
46. 46 ΫϥΠΞϯτϓϩάϥϜ *1W*1W
    ྆ѼઌΞυϨεʹ઀ଓͰ͖Δ
 Α͏ʹ͢Δ
    ઀ଓͰ͖ͳ͍ঢ়گ΋૝ఆ͠઀ଓࣦഊ࣌ʹ͸ ผͷѼઌΞυϨεʹ੾ସ͑ͯ઀ଓ͢Δ ʢϑΥʔϧόοΫʣ ΞϓϦέʔγϣϯͷ࡞Γ͕ѱ͍ͱ… ▪ ੾ସ͑ʹ͕͔͔࣌ؒΔ ▪ ਖ਼ৗʹ੾ସΘΒͳ͍͜ͱ΋͋Δ ϢʔβͷརศੑΛ ଛͳ͏
47. 47 ௨৴ॲཧͷิ଍ɿϑΥʔϧ όοΫ ઀ଓͰ͖ͳ͍৔߹ʹผͷ઀ଓઌ΁ͷ઀ଓʹ ੾ସ͑Δಈ࡞ Client Web Server www.example.jp DNS Server www.example.jp IN AAAA 2001:db8:100::1 www.example.jp IN A 192.0.2.1 ᶃ໊લղܾ໰߹ͤ www.example.jp ʁ ᶄAAAAԠ౴ 2001:db8:100::1 ɹAԠ౴ 192.0.2.1 ᶅHTTP௨৴ʢIPv6ʣ 2001:db8:100::1 192.0.2.1 2001:db8:ffff::1 198.51.100.1 ᶆHTTP௨৴ʢIPv4ʣ ϑΥʔϧόοΫ
48. 48 ૝ఆ͞ΕΔϑΥʔϧόοΫ ͷओͳݪҼ αʔόଆͷ
 ໰୊ αʔό͕౰֘ͷαʔϏεΛఏڙ͍ͯ͠ͳ͍ DNSޡొ࿥ɺো֐౳ ܦ࿏ͷ໰୊ ωοτϫʔΫͷ઀ଓੑ͕ࣦΘΕ͍ͯΔ ISPͷෆ۩߹ ΫϥΠΞϯτ ଆͷ໰୊ αʔό΁ͷ౸ୡੑ͕ͳ͍ΞυϨεΛબ୒͠ ͯ௨৴Λߦ͓͏ͱ͍ͯ͠Δ άϩʔόϧΞυϨεΛ࢖༻͍ͯ͠ΔดҬ ໢
49. 49 ϑΥʔϧόοΫͷ༧๷ࡦ αʔό ઃఆͷෆඋΛमਖ਼͢Δ αʔϏεΛఏڙ͍ͯ͠ͳ͍IPΞυϨε ΛDNSʹొ࿥͠ͳ͍ αʔϏεΛద੾ʹఏڙ͢Δ ISP ωοτϫʔΫͷ઀ଓੑΛ݈શʹอͭ ΫϥΠΞϯτ IPv6Πϯλʔωοτ઀ଓՄೳͳISPͱ
 ܖ໿͢Δ
50. 50 αʔόϓϩάϥϜ *1W*1W
    ྆ϓϩτίϧͰͷ઀ଓΛॲཧ
    ओཁͳ8FCαʔόϓϩάϥϜ͸ରԠࡁΈ
    "QBDIF
    )551
    4FSWFS
    .JDSPTPGU
    *OUFSOFU
    *OGPSNBUJPO
    4FSWFS
    **4
    OHJOY
51. 51 J04ΞϓϦɺ"OESPJE
 Ͱ͸ʜ ϓϥοτϑΥʔϜ͕ఏڙ͢ΔAPIͰ͜ͷลΛରԠ
 㱺 ։ൃऀʹɺ͜ͷลΛҙࣝͤ͞ͳ͍ iOSΞϓϦ ߴϨϕϧωοτϫʔΫϑϨʔϜϫʔΫͷ࢖༻Λਪ঑ WebKitɿWebϖʔδΛಡࠐΉෳࡶͳϓϩηεʹରԠ Cocoa URLɿΞϓϦέʔγϣϯͰURLͱࢀরઌͷϦιʔεΛૢ࡞ CFNetwork.Core Servicesɿ͞·͟·ͳωοτϫʔΫλεΫ AndroidΞϓϦ WebɿWebViewʢAndroid.webkit.WebViewʣɺ
 ɹɹɹHttpURLConnectionʢjava.net.HttpURLConnectionʣ WebҎ֎ɿSocketʢjava.net.Socketʣ
52. 
    σʔλͱͯ͠*1ΞυϨεΛ
 ɹɹ
    ѻ͏ՕॴͷରԠ 52
53. σʔλͱͯ͠*1ΞυϨεΛѻ͏Օॴ 53 ೖྗ ग़ྗ ੔ྻ ݕࡧ ֨ೲ
54. 54 *1W*1WΞυϨεൺֱ IPv4ΞυϨε IPv6ΞυϨε ΞυϨε௕ 32bit 128bit จࣈྻ දه දه๏ 8bitͣͭ۠੾Γɺ 10ਐ਺Ͱදه 16bitͣͭ۠੾Γɺ 16ਐ਺Ͱදه ʢলུදه͋Γʣ ۠੾Γจࣈ . ʢυοτʣ : ʢίϩϯʣ จࣈྻ௕ 15จࣈҎ಺ 39จࣈҎ಺ αϒωοτϚεΫʗϓϨϑΟοΫε௕Λ ߟྀ͢Δͱɺ্هʴ”/”ʴ਺ࣈ3จࣈ
55. 55 *1WΞυϨεදه๏ ಛஈͷࣄ৘͕ͳ͍ݶΓ
    3'$
    ͷදهϧʔϧʹ ै͍දه͢Δʢলུදهʣ
    ΞυϨεදهྫ
    *1Wʣ
    *1W׬શදهʣ EC
 *1WলུදهʣEC
    
56. 56 *1WΞυϨεͷจࣈྻ௕ *1WΞυϨεͷจࣈྻ௕ɿจࣈ
    ϓϨϑΟοΫεΛՃຯ͢Δͱɿจࣈ
    ྫ֎ʢจࣈΛ௒͑Δ͜ͱ͕͋Δʣ
    ϦϯΫϩʔΧϧΞυϨεʹκʔϯ*%ʢείʔϓ*%ʣΛ
 ෇༩ͯ͠ΠϯλʔϑΣʔεΛࣝผ͢Δ৔߹
    ྫʣGFFUI
    Ұ෦ͷಛघΞυϨε
    *1WࣹӨΞυϨε౳
 ྫʣGGGG
    IPv4ࣹӨΞυϨε IPv4 ΞυϨεΛ IPv6 ΞυϨεͱͯ͠දݱ͢Δͨ Ίͷ IPv6 ΞυϨεɻ্Ґ80Ϗοτʹ0ɺ81ʙ96 Ϗοτ໨ʹ1ɺԼҐ32ϏοτʹIPv4ΞυϨεΛຒ ΊࠐΉɻػث಺෦Ͱͷ࢖༻ʹݶΒΕɺύέοτ ͷ࢝఺/ऴ఺ΞυϨεʹ͸࢖ΘΕͳ͍ɻ ग़యɿ
 IPv6ؔ࿈༻ޠू IPv4-mapped(IPv6) address
57. 57 *1WΞυϨεΛѻ͑ͳ͍
    *1ΞυϨεೖྗɾ֨ೲ จࣈ·ͰͷจࣈྻʢWBSDIBS  ʣ
    ͭͷ੔਺ͱͯ͠ѻ͏
    ΦΫςοτͣͭͭͷ੔਺ͱͯ͠ѻ͏
    ͦͷ··Ͱ͸IPv6ΞυϨεΛ֨ೲͰ͖ͣɺΤϥʔͱͳΔ IPv4/IPv6྆ରԠ 39จࣈҎ಺ͷจࣈྻ [VARCHAR(39)] Good! Bad!
58. 58 8FCϑΥʔϜ͔Βͷೖྗ ೖྗ஋ͷݕূ
    *1ΞυϨεΛѻ͏৔߹ɺೖྗ͞Εͨจࣈྻ͕*1ΞυϨεͱͯ͠औ Γ͏Δ஋Ͱ͋Δ͜ͱΛݕূ
    *1WΞυϨεɺ*1WΞυϨε
    ͍ͣΕ͔ͱͯ͠औΓ͏Δ஋
    ̎ՕॴͰ࣮ࢪՄೳ
    ϒϥ΢βଆʢ)5.-ͷ'PSN
    7BMJEBUJPO౳ʣ
    αʔόଆ
    ΞυϨεॲཧϥΠϒϥϦΛར༻͢Δͱศར
    ྫʣ1)1
 GJMUFS@WBS IPTU
    '*-5&3@7"-*%"5&@*1
    '*-5&3@'-"(@*17
59. 59 ֨ೲɺݕࡧɺ੔ྻɺग़ྗ *1ΞυϨεܕ͕ఆٛ͞Ε͍ͯΔ৔߹͸ɺ*1ΞυϨεܕΛ࢖͏
    ྫ
    1PTUHSF42-ͷωοτϫʔΫΞυϨεܕ
    *1ΞυϨεܕ͕ఆٛ͞Ε͍ͯͳ͍৔߹͸ɺจࣈྻܕͰ׬શදهΛ ࢖͏
    *1W׬શදهʣ EC
    ݟ΍͢͞ΛٻΊΔͱ͖͸ɺলུදهʢ3'$४ڌʣͰग़ྗ
    աڈʹ։ൃ͞ΕͨγεςϜɾπʔϧͰ͸ɺ3'$ʹ४ ڌ͠ͳ͍লུදه͕ଘࡏ͠͏ΔͷͰཁ஫ҙ
    طଘγεςϜ͸ɺ֨ೲྖҬʹ*1WΞυϨε͕ऩ·Δ͔Λ
 νΣοΫ
60. 60 1PTUHSF42-ͷωοτ ϫʔΫΞυϨεܕ
61. 61 จࣈྻܕͰѻ͏৔߹ɺ
 ͳͥ׬શදه͔ʁᶃ লུදهͷ··੔ྻͯ͠΋ʜ 2001:db8:0:1::1:1 2001:db8:0:2::1 2001:db8:0:1::50 2001:db8:0:10::1 ੔ྻલ 2001:db8:0:10::1 2001:db8:0:1::1:1 2001:db8:0:1::50 2001:db8:0:2::1 ੔ྻޙ ΞυϨεঢॱ 2001:db8:0:1::50 2001:db8:0:1::1:1 2001:db8:0:2::1 2001:db8:0:10::1 লུදهͷ
 ੔ྻ͸
 ΞυϨεঢॱͱ
 Ұக͠ͳ͍ ʢ จ ࣈ ྻ ʣ ੔ ྻ ΞυϨε ঢॱ
62. 62 จࣈྻܕͰѻ͏৔߹ɺͳͥ׬ શදه͔ʁᶄ ੔ྻ͸׬શදهͰߦ͏ 2001:db8:0:1::1:1 2001:db8:0:2::1 2001:db8:0:1::50 2001:db8:0:10::1 ੔ྻલ ੔ྻޙ ΞυϨεঢॱ 2001:db8:0:1::50 2001:db8:0:1::1:1 2001:db8:0:2::1 2001:db8:0:10::1 ΞυϨε ঢॱ 2001:0db8:0000:0001:0000:0000:0001:0001 2001:0db8:0000:0002:0000:0000:0000:0001 2001:0db8:0000:0001:0000:0000:0000:0050 2001:0db8:0000:0010:0000:0000:0000:0001 2001:0db8:0000:0001:0000:0000:0000:0050 2001:0db8:0000:0001:0000:0000:0001:0001
 2001:0db8:0000:0002:0000:0000:0000:0001
 2001:0db8:0000:0010:0000:0000:0000:0001 ʢจࣈྻʣ
 ੔ྻ ׬શදه ׬શදهͷ੔ྻ͸
 ΞυϨεঢॱͱ
 Ұக
63. 63 จࣈྻܕͱͯ͠ѻ͏ͱ͖ͷ ஫ҙ఺ লུදه
    㱻
    ׬શදه
    ͷม׵͸ϥΠϒϥϦ Λ༗ޮ׆༻͢Δ
    աڈʹ։ൃ͞ΕͨγεςϜɾπʔϧͰ͸ɺ 3'$ʹ४ڌ͠ͳ͍লུදه͕ଘࡏ͠
 ͏ΔͷͰཁ஫ҙ
64. 64 ϩάग़ྗɾղੳ΁ͷӨڹ ྫʣ"QBDIF
    )551
    4FSWFS
    ϩάϑΝΠϧ
    044ϩάղੳϓϩάϥϜ͸େ఍໰୊ͳ͘ॲཧͰ͖Δ
    "84UBUT
    8FCBMJ[FSʜ
    ஫ɿΞΫηεݩͷࠃʗ஍Ҭ͸ղੳͰ͖ͳ͍৔߹͕͋Δ
    ϩάղੳΛࣗ࡞͍ͯ͠Δਓ͸ཁ஫ҙʂ
    ΞυϨε෦෼ͷจࣈྻ௕͕௕͘ͳΔ
    ΞυϨεͷ۠੾Γจࣈ͕มΘΔ fdb6:5591:2612:10::100 - - [08/Oct/2016:17:52:30 +0900] "GET / HTTP/1.1" 200 144 172.16.10.128 - - [08/Oct/2016:18:01:59 +0900] "GET / HTTP/1.1" 200 100 1 2
65. 65 ষ·ͱΊ *1WରԠͷجຊํ਑
    *1WରԠʹ*1W*1Wͷ྆ํͰಈ࡞ͤ͞Δ͜ͱ
    γϯάϧιʔείʔυͰରԠ͢Δ
    *1WରԠͷϙΠϯτ
     *1W*1W྆ରԠͷϓϩάϥϛϯάݴޠͱ࣮ߦ؀ ڥΛ࢖͏
     ௨৴ॲཧΛ*1W*1Wͷ྆ํʹରԠͤ͞Δ
     σʔλͱͯ͠*1ΞυϨεΛѻ͏ՕॴΛ*1W*1W ͷ྆ํʹରԠͤ͞Δ
    ɹ
66. 
    1)1αϯϓϧίʔυ 66
67. 4BNQMF
    
 ΞΫηεཤྺදࣔɾूܭ8FCΞϓϦ ʢ1)1 67
68. αϯϓϧΞϓϦɿ
 ΞΫηεཤྺরձˍूܭʢ1)1ʣ 68
69. 69 ίʔσΟϯάͷཹҙ఺ ؔ਺ɺσʔλܕ͸*1W*1W྆ରԠͷ΋ͷΛ࢖༻
 ͢Δ
    σʔλܕɿจࣈྻܕ
    ؔ਺ɿ
    HFU@EOT@SFDPSE
    HFUIPTUCZBEES
    ϥΠϒϥϦɺϑΟϧλΛ༻͍ͯೖྗ஋ݕূɺม׵
    ϥΠϒϥϦɿ/FU@*1W
    ϑΟϧλɿ'*-5&3@7"-*%"5&@*1 gethostbyname() ͸IPv6ඇରԠ
70. 70 ʲ1)1ʳ໊લղܾ ਖ਼Ҿ͖
    EOT@HFU@SFDPSE
    Ҿ਺Ͱࢦఆͨ͠33ͷ৘ใΛऔಘͯ͠ɺ഑ྻͰฦ͢
 ٯҾ͖
    HFUIPTUCZBEES
    Ҿ਺Ͱࢦఆͨ͠ΞυϨεʹରԠ͢Δϗετ໊Λฦ ͢
    // www.iajapan.org ͷ IPv6 ΞυϨε (AAAA Ϩίʔυ) Λݕࡧ $result = dns_get_record('www.iajapan.org', DNS_ALL); $result = gethostbyaddr(‘192.168.0.1'); $result = gethostbyaddr(‘2001:db8:0:1::1:1');
71. 71 ʲ1)1ʳΞυϨεॲཧ 1&"3/FU@*1W
    *1W
    ΞυϨεʹؔ͢ΔॲཧΛߦ͏
    IUUQQFBSQIQOFUQBDLBHF/FU@*1W
    ԼهͷΑ͏ͳϝιουΛఏڙ͢Δ
    DIFDL*1W
    
    *1WͷΞυϨε͔ݕূ
    DPNQSFTT
    
    *1ΞυϨεͷ୹ॖ
    VODPNQSFTT
    
    *1ΞυϨεͷ৳௕
    JT*O/FUNBTL
    
    *1͕ࢦఆͨ͠ΞυϨεۭؒʹ
 ɹɹɹɹɹɹɹɹ͋Δ͔Ͳ͏͔Λௐ΂Δ
72. 72 4BNQMF
    ॲཧϑϩʔ ཤྺॻࠐΈ ཤྺҰཡදࣔɾूܭ ઀ଓݩΞυϨεΛऔಘ DBʹϨίʔυ௥Ճ ʢINSERTʣ ֨ೲઌͷDBͷσʔλܕ͕ จࣈྻͷ৔߹͸ɺলུදه Λ׬શදهʹల։ Ϣʔβೖྗ஋͔Β੔ྻΩʔɺ ঢॱʗ߱ॱɺूܭϑϥάΛ औಘ Ϣʔβೖྗ஋ʹै͍ɺDB ͔ΒཤྺΛಡΈࠐΈɺঢॱ ʗ߱ॱɺूܭͯ͠දࣔ
73. 73 4BNQMF
    ίʔυղઆ ʢʣ <?php require_once 'settings.php'; require_once 'modules.php'; $now = date('Y/m/d H:i:s'); $array_access = array ( 'source_addr' => filter_input(INPUT_SERVER, 'REMOTE_ADDR', FILTER_VALIDATE_IP), 'source_port' => filter_input(INPUT_SERVER, 'REMOTE_PORT', FILTER_VALIDATE_INT), 'server_addr' => filter_input(INPUT_SERVER, 'SERVER_ADDR', FILTER_VALIDATE_IP), 'access_time' => $now, ); $logging = write_history($array_access); index.php filter_input() ͰϢʔβೖྗ஋ ͕IPΞυϨεܗࣜͰ͋Δ͜ͱ Λݕূ ؔ਺Խͨ͠ΞΫηεཤྺॻ ࠐΈΛݺͼग़͠
74. 74 4BNQMF
    ίʔυղઆ ʢʣ $sort_mode = array ( 'key' => filter_input(INPUT_GET, 'sort_key', FILTER_VALIDATE_REGEXP, array('options' => array('regexp' => '/(^access_date$|^source_addr$|^source_port$|^count$)/'))), 'desc' => filter_input(INPUT_GET, 'desc', FILTER_VALIDATE_REGEXP, array('options' => array('regexp' => '/(^desc$|^asc$)/'))), 'count' => filter_input(INPUT_GET, 'count', FILTER_VALIDATE_INT, array('options' => array('min_range' => 0, 'max_range' => 1))), ); if (!$sort_mode['key']){ $sort_mode['key'] = 'access_date'; } $history = display_history($sort_mode); ?> ʙҎԼɺHTML෦෼ʹׂ͖ͭѪʙ index.php ؔ਺Խͨ͠ΞΫηεཤྺද ࣔΛݺͼग़͠
75. 75 4BNQMF
    ίʔυղઆ ʢʣ <?php // ////////////////////////// // ཤྺॻࠐΈؔ਺ function write_history ($array_access) { global $DSN; // ========================================== // DBͷσʔλܕ͕varcharͷ৔߹ʹ͸ɺলུදهΛ׬શදهʹల։ // ========================================== if (constant('STORE_TYPE') !== 'INET') { require_once 'Net/IPv6.php'; if (Net_IPv6::checkIPv6($array_access['source_addr'])) { $source_addr = Net_IPv6::uncompress($array_access['source_addr'], TRUE); } else { $source_addr = $array_access['source_addr']; } } modules.php Net_IPv6::checkIPv6() Ͱม਺ ͕IPv6ΞυϨεͰ͋Δ͜ͱΛ ݕূ লུදهΛ׬શදهʹ ల։ʢୈ2Ҿ਺ΛTRUE ʹ͢Δ͜ͱͰ׬શදهʣ STORE_TYPE ͸ɺ͜ͷϓ ϩάϥϜͰಠࣗʹఆٛ
76. 76 4BNQMF
    ίʔυղઆ ʢʣ $query = 'INSERT INTO access_history ( access_date, source_addr, source_port) VALUES (now(), :ip, :port)'; if ($dbh = new PDO($DSN)) { $sth = $dbh->prepare($query); $sth->execute(array(':ip' => $array_access['source_addr'], ':port' => $array_access['source_port'])); $err_code = $sth->errorCode(); if ($err_code === '00000'){ return OK; } else { return WRITE_ERROR; } } else { echo "DB connection error"; return OPEN_ERROR; } } modules.php
77. 77 4BNQMF
    ίʔυղઆ ʢʣ // ///////////////////////// // ཤྺදࣔˍΞΫηε਺ूܭؔ਺ function display_history ($sort_mode) { global $DSN; if ($sort_mode['count']){ // ूܭ࣌ͷΫΤϦ࡞੒ $query = 'SELECT source_addr, count(source_addr) FROM access_history GROUP BY source_addr'; if ($sort_mode['key'] === 'source_addr' || $sort_mode['key'] === 'count' ){ $query .= ' ORDER BY ' . $sort_mode['key']; if ($sort_mode['desc']) { $query .= ' ' . $sort_mode['desc']; } } modules.php ੔ྻ࣌ͷࢦఆ͸ɺ
 ௨ৗͷSQLʢORDER BY Ωʔʣ
78. 78 4BNQMF
    ίʔυղઆ ʢʣ } else { // ཤྺҰཡ࣌ͷΫΤϦʔ࡞੒ $query = 'SELECT * FROM access_history'; if ($sort_mode['key'] && $sort_mode['key'] !== 'count' ){ $query .= ' ORDER BY ' . $sort_mode['key']; if ($sort_mode['desc']) { $query .= ' ' . $sort_mode['desc']; } $query .= ' NULLS LAST'; } } modules.php ੔ྻ࣌ͷࢦఆ͸ɺ
 ௨ৗͷSQLʢORDER BY Ωʔʣ
79. 79 4BNQMF
    ίʔυղઆ ʢʣ // ================================================= // DB઀ଓˍΫΤϦ࣮ߦ // ================================================= $dbh = new PDO($DSN); if ($dbh) { $sth = $dbh->prepare($query); $sth->execute(); $result = $sth->fetchAll(); $sth->errorCode(); } else { echo "DB connection error"; } modules.php
80. 80 4BNQMF
    ίʔυղઆ ʢʣ // ================================================= // ग़ྗ੔ܗ // ================================================= if (constant('STORE_TYPE') !== 'INET') { // จࣈྻͰ֨ೲ͞Ε͍ͯΔ৔߹͸ɺলུදهʹ͢ΔͨΊʹϥΠϒϥϦΛݺͼग़͢ require_once 'Net/IPv6.php'; } if ($sort_mode['count']) { $ret_string = '<H2>ΞΫηεूܭ</H2><TABLE border="1"><TR><TH>No.</ TH><TH>઀ଓݩΞυϨε</TH><TH>઀ଓճ਺</TH></TR>'; $size = sizeof($result); for ($loopcnt = 0; $loopcnt < $size; $loopcnt++){ modules.php
81. 81 4BNQMF
    ίʔυղઆ ʢʣ if (constant('STORE_TYPE') !== 'INET') { // จࣈྻͰ֨ೲ͞Ε͍ͯΔ৔߹͸ɺলུදهʹ͢Δ if (Net_IPv6::checkIPv6($result[$loopcnt]['source_addr'])){ $source_addr = Net_IPv6::compress($result[$loopcnt]['source_addr']); } else { $source_addr = $result[$loopcnt]['source_addr']; } } else { $source_addr = $result[$loopcnt]['source_addr']; } $ret_string .= "<TR><TD align='right'>" . ($loopcnt +1) . "</TD><TD>" . $source_addr . "</TD><TD align='right'>" . $result[$loopcnt]['count'] . "</TD></TR>\n"; } $ret_string .= '</TABLE>'; modules.php ׬શදهΛ লུදهʹ ม׵
 ʢݟ΍͢͞ ॏࢹʣ
82. 82 4BNQMF
    ίʔυղઆ ʢʣ } else { $ret_string = '<H2>ΞΫηεཤྺ</H2><TABLE border="1"><TR><TH>No.</ TH><TH>઀ଓ೔࣌</TH><TH>઀ଓݩΞυϨε</TH><TH>઀ଓݩϙʔτ൪߸</ TH></TR>'; $size = sizeof($result); for ($loopcnt = 0; $loopcnt < $size; $loopcnt++){ if (constant('STORE_TYPE') !== 'INET') { // จࣈྻͰ֨ೲ͞Ε͍ͯΔ৔߹͸ɺলུදهʹ͢Δ if (Net_IPv6::checkIPv6($result[$loopcnt]['source_addr'])){ $source_addr = Net_IPv6::compress($result[$loopcnt]['source_addr']); } else { $source_addr = $result[$loopcnt]['source_addr']; } } else { $source_addr = $result[$loopcnt]['source_addr']; } modules.php ׬શදهΛলུ දهʹม׵
 ʢݟ΍͢͞ॏࢹʣ
83. 83 4BNQMF
    ίʔυղઆ ʢʣ $ret_string .= "<TR><TD align='right'>" . ($loopcnt +1) . "</TD><TD>" . $result[$loopcnt]['access_date'] . "</TD><TD>" . $source_addr . "</TD><TD align='right'>" . $result[$loopcnt]['source_port'] . "</TD></TR>\n"; } $ret_string .= '</TABLE>'; } return $ret_string; } ?> modules.php
84. 4BNQMF
    
 ιέοτΫϥΠΞϯτ8FCΞϓϦ
 ʢ1)1ʣ 84
85. 85 4BNQMF
    
 ͲΜͳΞϓϦʁ ϑΥʔϜ͔Βೖྗ͞Εͨϗετɺϙʔτʹ ରͯ͠ιέοτ઀ଓΛߦ͍ɺαʔόଆͷग़ ྗΛͦͷ··8FCϖʔδʹग़ྗ
86. 86 ιέοτ௨৴ʁ ΫϥΠΞϯτ
    ʢ*1W*1WΛ໰Θͣʣ೚ҙͷ
 ϗετɺϙʔτʹରͯ͠ιέοτ
 ઀ଓ͠ɺαʔόͱͷؒͰσʔλΛ
 ૹड৴
    αʔό
    ʢ*1W*1WΛ໰Θͣʣ೚ҙͷϙʔτͰιέοτ઀ଓΛ଴ͪ
 ड͚ɺ઀ଓͨ͠ΫϥΠΞϯτͱͷ
 ؒͰσʔλΛૹड৴
    ෳ਺ͷιέοτΛੜ੒͢Δ
 σϡΞϧελοΫରԠ
 αʔόϓϩάϥϜ αʔό ϓϩηε IPv6 IPv4 αʔό
 ϓϩάϥϜ ىಈ ઀ଓ ઀ଓ IPv6 IPv4 αʔόଆαϯϓϧίʔυ͸ׂѪ
87. 87 ΫϥΠΞϯτϓϩάϥϜͷ ϙΠϯτ ϑΥʔϧόοΫɿ઀ଓͰ͖ͳ͍৔߹ʹผͷ ઀ଓઌ΁ͷ઀ଓʹ੾ସ͑Δಈ࡞
    ઀ଓઌΞυϨε৘ใΛϦετͰऔಘ͠ɺॱʹͨͲΔ Client Web Server www.example.jp DNS Server www.example.jp IN AAAA 2001:db8:100::1 www.example.jp IN A 192.0.2.1 ᶃ໊લղܾ໰߹ͤ www.example.jp ʁ ᶄAAAAԠ౴ 2001:db8:100::1 ɹAԠ౴ 192.0.2.1 ᶅHTTP௨৴ʢIPv6ʣ 2001:db8:100::1 192.0.2.1 2001:db8:ffff::1 198.51.100.1 ᶆHTTP௨৴ʢIPv4ʣ ϑΥʔϧόοΫ
88. 88 ίʔσΟϯάͷཹҙ఺ ؔ਺ɺσʔλܕ͸*1W*1W྆ରԠͷ΋ͷΛ࢖༻
 ͢Δ
    σʔλܕɿจࣈྻܕ
    ؔ਺ɿ
    HFU@EOT@SFDPSE
    HFUIPTUCZBEES
    ϥΠϒϥϦɺϑΟϧλΛ༻͍ͯೖྗ஋ݕূɺม׵
    ϥΠϒϥϦɿ/FU@*1W
    ϑΟϧλɿ'*-5&3@7"-*%"5&@*1 gethostbyname() ͸IPv6ඇରԠ
89. 89 4BNQMF
    ॲཧϑϩʔ Ϣʔβೖྗ஋͔Β
 ઀ଓઌΞυϨεʢϦετʣΛ
 औಘ ઀ଓઌΞυϨεʢϦετʣʹɺ ॱʹιέοτΛੜ੒ͯ͠઀ଓ
90. 90 4BNQMF
    ίʔυղઆ ʢʣ <?php $IS_DEBUG = 0; $host = filter_input(INPUT_GET, 'host'); $port = filter_input(INPUT_GET, 'port', FILTER_VALIDATE_INT); if ($host && $port){ $addresses = array(); if ($host_addr = filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)){ $addresses[0]['domain'] = AF_INET6; $addresses[0]['address'] = $host_addr; } elseif ($host_addr = filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)){ $addresses[0]['domain'] = AF_INET; $addresses[0]['address'] = $host_addr; ▪ ϑΟϧλΛ༻͍ͯม਺͕IPv6/IPv4 ΞυϨε͔൑அ ▪ ΞυϨε͔ΒϓϩτίϧʹԠͨ͡ϓϩτίϧϑΝϛϦΛઃఆ
91. 91 4BNQMF
    ίʔυղઆ ʢʣ } else { $host_list = dns_get_record($host); $size = sizeof($host_list); for ($loopcnt = 0; $loopcnt < $size; $loopcnt++){ if ($host_list[$loopcnt]['type'] === 'AAAA'){ $addresses[$loopcnt]['domain'] = AF_INET6; $addresses[$loopcnt]['address'] = $host_list[$loopcnt]['ipv6']; } else { $addresses[$loopcnt]['domain'] = AF_INET; $addresses[$loopcnt]['address'] = $host_list[$loopcnt]['ip']; } } } $size = sizeof($addresses); $message = "઀ଓઌϗετ໊ " . $host . " ϙʔτ൪߸ " . $port . "<BR>\n"; ϗετ໊ͷ৔߹ʹ͸DNS͔Β ΞυϨεΛϦετͰऔಘ ▪ Ϧετͷ਺͚ͩɺΞυϨεΛऔಘ͠઀ଓઌީิͱ͢Δ ▪ IPv6 ͸ AAAA ϨίʔυɺIPv4 ͸ A Ϩίʔυʹ֨ೲ gethostbyname()͸ɺ IPv6ඇରԠ
92. 92 4BNQMF
    ίʔυղઆ ʢʣ $connect_flag = 0; for ($loopcnt = 0; $loopcnt < $size && $connect_flag === 0; $loopcnt++){ if (($socket = socket_create($addresses[$loopcnt]['domain'], SOCK_STREAM, SOL_TCP)) === FALSE){ $error_code = socket_last_error(); $error_msg = socket_strerror($error_code); $message .= "connect to " . $addresses[$loopcnt]['address'] . "<BR>\n"; $message .= 'socket create error: [' . $error_code . '] ' . $error_msg . "<BR>\n"; } else { $message .= 'socket connect (' . ($loopcnt +1) . ') : ' . $addresses[$loopcnt] ['address'] . " port: " . $port . "<BR>\n"; ιέοτ࡞Δ
93. 93 4BNQMF
    ίʔυղઆ ʢʣ if (socket_connect($socket, $addresses[$loopcnt]['address'], $port)){ $connect_flag = 1; $response = socket_read($socket, 1024); $message .= "αʔό͔Βͷϝοηʔδɿ" . '<div style="margin: 10px">' . $response . '</div>' . "<BR>\n"; } else { $error_code = socket_last_error(); $error_msg = socket_strerror($error_code); $message .= 'socket connect error: [' . $error_code . '] ' . $error_msg . "<BR>\n"; } socket_close($socket); } } } else { $message = "઀ଓઌϗετ໊ " . $host . " ΋͘͠͸ϙʔτ൪߸ " . $port . "͕ೖྗ͞ Ε͍ͯ·ͤΜ"; } ઀ଓ͢Δ ੾அ͢Δ
94. 94 4BNQMF
    ίʔυղઆ ʢʣ <html> <head> <meta charset="UTF-8"> <title>Socket௨৴ΫϥΠΞϯτʢσϡΞϧελοΫ൛ʣ</title> </head> <body> <H1>Socket௨৴ΫϥΠΞϯτʢσϡΞϧελοΫ൛ʣ</H1> <form action="<?php echo filter_input(INPUT_SERVER, 'PHP_SELF', FILTER_SANITIZE_URL)?>" method="GET"> ઀ଓઌϗετ <input type='text' name='host' value='<?php echo $host; ?>'> ϙʔτ൪߸ <input type='text' name='port'value='<?php echo $port; ?>'> <input type="submit" value="࣮ߦ͢Δ"> </form> <HR> <?php echo $message; ?> </body> </html>
95. 
    "QQMF
    ͷ
    *1W
    ରԠղઆ 95
96. 96 ࠓ೥݄ͷAppleͷ
 Ξφ΢ϯε  ͔Βɺ"QQ
    4UPSF ʹࡌͤΔΞϓϦ͸ɺ
 IPv6-only ωοτϫʔΫͰಈ ࡞͠ͳ͍ͱ͍͚ͳ͍ ΄ͱΜͲͷΞϓϦ͸Կ΋
 มߋ͠ͳͯ͘େৎ෉ͳ͸ͣ ΋͠ɺ*1W ݻ༗ͷ "1* ΍ *1Ξ υϨεΛϋʔυίʔυ͍ͯͨ͠ ΒɺʢNetworking Overview ͷʣʮSupporting IPv6 DNS64/NAT64 NetworksʯΛ ಡΜͰରԠͯ͠Ͷ https://developer.apple.com/news/?id=05042016a
97. IPv IPv6 97 %/4/"5ͬͯ Կʁ *1W Λϕʔεʹ *1W ΁ͷΞΫηεΛม׵ͤ͞Δ࢓૊Έ
    %/4 Ͱ %/4Ԡ౴ͷ *1W ΞυϨεΛ *1W
    ΞυϨεʹม׵
    /"5 Ͱ௨৴Λม׵
    %/4/"5؀ڥͷ*1Wͱͷ௨৴࣌ͷྲྀΕ
    
    ΫϥΠΞϯτ
 ʢIPv6ʣ DNS64
 ʢΩϟογϡ
 DNSαʔόʣ ݖҖDNS
 αʔό ᶃDNS໰߹ͤ ᶄDNS໰߹ͤ ᶅԠ౴ ᶆDNSԠ౴
 ʢIPv4 ΞυϨεʣ ᶈDNSԠ౴
 ʢIPv6 ΞυϨεʣ ᶇDNSԠ౴Λม׵
 IPv4 㱺 IPv6 NAT64
 ήʔτ΢ΣΠ Web
 αʔό
 ʢIPv4ʣ ᶋϦΫΤετ
 ʢIPv4ʣ ᶌϨεϙϯε
 ʢIPv4ʣ ᶉϦΫΤετ
 ʢIPv6ʣ ᶎϨεϙϯε
 ʢIPv6ʣ ᶊϓϩτίϧม׵
 IPv6 㱺 IPv4 ᶍϓϩτίϧม׵
 IPv4 㱺 IPv6
98. 98 "QQ
    4UPSF
    3FWJFX
    (VJEFMJOFT
    Ͱ΋ݴٴ "QQ
    4UPSF
    3FWJFX
    (VJEFMJOFT
    IUUQTEFWFMPQFSBQQMFDPNBQQ TUPSFSFWJFXHVJEFMJOFT
    
    4PGUXBSF
    3FRVJSFNFOUT
    ಺ͷ
     ʹͯݴٴ
    ʮ*1WωοτϫʔΫͰϨϏϡʔ͢Δ Αʯ
    ʮ*1WΞυϨογϯάʹରԠ͍ͯ͠ͳ ͍ͱɺϨϏϡʔͰམͪΔ͔΋͠Εͳ͍ʯ ຊ౰ʹ֬ೝ͢ΔΒ͍͠
99. 99 ࣮ࡍʹϦδΣΫτ͞Εͨ ਓ΋ग़͍ͯΔ ໿3,520݅
100. 100 ̏
     "QQMF
     ͷ *1W
     
 ɹɹ
     
     ରԠɺղઆ ʙNetworking OverviewΛಡΈղ͘ʙ
101. 101 "QQMF
     /FUXPSLJOH
     0WFSWJFX ͬͯԿʁ "QQMF
     ࣾͷ։ൃऀ޲͚αΠτͷυΩϡϝϯτίʔ φʔʹܝࡌ͞Ε͍ͯΔυΩϡϝϯτ
     ೔ຊޠ൛͋ΓʮωοτϫʔΩϯά ΦʔόʔϏϡʔʯ
     IUUQTEFWFMPQFSBQQMFDPNKQEPDVNFOUBUJPO /FUXPSLJOH*OUFSOFU8FC$PODFQUVBM/FUXPSLJOH0WFSWJFX *OUSPEVDUJPO*OUSPEVDUJPOIUNM
     ωοτϫʔΫϕʔεͷιϑτ΢ΣΞ։ൃ͢Δ
 ࡍʹɺ௨৴଎౓ɺ઀ଓੑɺ৴པੑͳͲɺঢ়گͷ
 มԽʹ௥ਵͰ͖ΔΑ͏ʹ͢Δํ๏Λղઆͨ͠
 จॻ
102. 102 /FUXPSLJOH
     0WFSWJFX
     ͷߏ੒ ωοτϫʔΫ௨৴ʹ͍ͭͯ
     ݱ࣮తͳωοτϫʔΫͷઃܭ
     ωοτϫʔΫॲཧͷཁ݅ͷධՁ
     ωοτϫʔΫαʔϏεͷ୳ࡧͱ޿ࠂ
     ΢Σϒ΍ϚϧνϝσΟΞ
 ίϯςϯπͷදࣔ
     )551)5514ཁٻͷॲཧ
     ιέοτ΍
 ιέοτετϦʔϜͷ࢖͍ํ
     ωοτϫʔΫ௨৴ͷ
 ηΩϡϦςΟػೳ
     ϓϥοτϑΥʔϜಛ༗ͷ
 ωοτϫʔΫٕज़
     ωοτϫʔΫॲཧʹ͓͍ͯ
 ൜͕ͪ͠ͳޡΓͷճආ
     IPv6 DNS64/NAT64 
 ωοτϫʔΫͷαϙʔτ ▪ IPv6 Λ࠾༻͢Δཧ༝ ▪ DNS64/NAT64 ʹΑΔҠߦ
 ϫʔΫϑϩʔ ▪ IPv6 ͓Αͼ App Store ͷཁ݅ ▪ IPv6 Λαϙʔτ͢Δࡍͷ
 Α͋͘Δোน ▪ IPv6 DNS64/NAT64 ͷޓ׵ੑͷอূ ▪ ؔ࿈৘ใ
103. 103 *1WΛ࠾༻͢Δཧ༝ IPv4 ΞυϨεͷރׇ *1W
     ΑΓ΋ޮ཰తͳ *1W
     NAT ͷඞཁ͕ͳ͍ ؆ૉԽ͞ΕͨϔομΛ࢖͏͜ͱʹΑΓɺϧʔςΟϯάͷߴ଎Խ͕Մೳ
     ωοτϫʔΫ͕அยԽ͞Εͳ͍ ۙྡΞυϨεղܾͷͨΊͷϒϩʔυΩϟετΛճආ
     ( ͷಋೖ
     ( ͸ύέοτަ׵ͷΈΛϕʔεɺ*1WΞυϨεڙڅ͸ݶք
     ϚϧνϝσΟΞαʔϏεͷޓ׵ੑ
     Ұ෦ͷαʔϏεϓϩόΠμ͕࢖͏*.4ʢ*1
     .VMUJNFEJB
     $PSF
     /FUXPSL
     4VCTZTUFNʣ͸ɺ *1Wͱ͔͠ޓ׵ੑ͕ͳ͍
     ྉۚ
     αʔϏεϓϩόΠμʔ͸طଘͷ IPv4 ωοτϫʔΫͷαϙʔτΛଓ͚Δ͜ͱʹΑΓɺ
 ௥Ճͷӡ༻ίετͱ؅ཧίετ͕͔͔Δ IPv4ωοτϫʔΫͱIPv6ωοτϫʔΫΛൺֱͯ͠ॻ͔Ε͍ͯΔ͕ɺ
 طଘωοτϫʔΫͷҠߦ͸ߟྀͯ͠ͳ͍Α͏ʹײ͡Δ
104. 104 %/4/"5 ʹΑΔ ҠߦϫʔΫϑϩʔ ϓϩόΠμʔͱͯ͠ཧ૝తͳͷ͸ɺ*1W ωοτ
 ϫʔΫͷαϙʔτΛഇࢭ͢Δ͜ͱ
 ʢཧ༝͸ *1W ઀ଓͷҡ࣋ʹίετ͕͔͔ΔͨΊʣ
     㱺
     ͦΕΛ΍ͬͯ͠·͏ͱɺ*1W
     ωοτϫʔΫʹ
 ɹ ΫϥΠΞϯτ͕ΞΫηεͰ͖ͳ͘ͳΔ
     ओཁͳωοτϫʔΫϓϩόΠμʔͷେ൒͸ DNS64/NAT64 ʹ ΑΔҠߦϫʔΫϑϩʔΛ࣮૷ ͱ "QQMF ͸༧ଌ
105. 105 *1W ͓Αͼ "QQ
     4UPSF ͷཁ݅ ΞϓϦέʔγϣϯͰʢIPv6 DNS64/NAT64 
 ωοτϫʔΫͱͷʣޓ׵ੑΛอূ͢Δ͜ͱ ఆظతʹճؼςετ͢Δ͜ͱ͕ॏཁ ͜ͷจॻ্ɺApp Store Ͱͷల։ͷཁ݅͸ɺ
 DNS64/NAT64؀ڥͰಈ࡞͢Ε͹͍͍
 ʢIPv6ͷαʔόͱͷ઀ଓੑ͸ཁٻ͞Ε͍ͯͳ͍ʣ ࣮͸ͪΐͬͱҧ͏ʢޙड़ʣ
106. 106 *1W
     Λαϙʔτ͢Δࡍͷ Α͋͘Δোน ϓϩτίϧʹຒΊࠐ·ΕͨIPΞυϨεϦςϥϧ ϓϩτίϧϝοηʔδʹ*1ΞυϨεϦςϥϧؚ͕·ΕͨΓ
     ϔομʔϑΟʔϧυͷ஋ʹදࣔ͞ΕͨΓ
     ߏ੒ϑΝΠϧʹຒΊࠐ·ΕͨIPΞυϨεϦςϥϧ
     ωοτϫʔΫϓϦϑϥΠτ
     ௨৴Մ൱ͷࣄલνΣοΫΛɺIPΞυϨεϦςϥϧͰ༩͑ΒΕͨ઀ଓઌͰ
 ߦ͍ͬͯΔ
     ௿ϨϕϧωοτϫʔΫ"1*ͷ࢖༻
     ιέοτ΍ɺ3"8ωοτϫʔΫ"1*
     ޡ༻͞Ε͕ͪɺIPv4 ͔͠αϙʔτ͠ͳ͔ͬͨΓ͢Δ
     খ͞ͳΞυϨεϑΝϛϦετϨʔδίϯςφͷ࢖༻
     32bitҎԼͷΞυϨεετϨʔδίϯςφ͕࢖ΘΕ͍ͯΔ౳ ·ͱΊΔͱɺ௚઀IPΞυϨε͕࢖༻͞ΕͯΔɺIPv6ඇରԠͷ
 API࢖ΘΕͯΔɺΞυϨε͕֨ೲͰ͖ͳ͍ ͷ3఺ʹू໿͞ΕΔ
107. 107 *1W
     %/4/"5
     ͷޓ׵ੑͷอূ ߴϨϕϧωοτϫʔΫϑϨʔϜϫʔΫͷ࢖༻ ΄ͱΜͲͷ৔߹ɺߴϨϕϧϑϨʔϜϫʔΫͰे෼
     8FC,JUɿ8FCϖʔδΛಡࠐΉෳࡶͳϓϩηεʹରԠ
     $PDPB
     63-ɿΞϓϦέʔγϣϯͰ63-ͱࢀরઌͷϦιʔεΛૢ࡞
     $'/FUXPSL$PSF
     
     4FSWJDFTɿ͞·͟·ͳωοτϫʔΫλεΫ
     IPΞυϨεϦςϥϧΛ࢖Θͳ͍ ϓϦϑϥΠτͳ͠ͷ઀ଓ దੑαΠζͷετϨʔδίϯςφͷ࢖༻ ιʔείʔυΛνΣοΫ͠ɺIPv6 DNS64/NAT64ͱ
 ඇޓ׵ੑ͕ͳ͍͔֬ೝ IPv4ݻ༗ͷAPIΛ࢖༻͍ͯ͠ͳ͍͔֬ೝ IPv6 DNS64/NAT64 ͷޓ׵ੑͷఆظతͳςετ .BD
     ୆Ͱ%/4/"5ͷݕূ͕Ͱ͖ΔΑ͏ʹػೳΛఏڙ IPv6 DNS64/NAT64 ؀ڥԼͰ΋ಈ࡞͢ΔͨΊʹ͸্هରԠ͕ඞཁ
 ্هରԠ͸ɺΞϓϦέʔγϣϯIPv6ରԠڞ௨ͷ΋ͷ ͱ Apple ؀ڥݻ༗ͷ΋ͷ ͕ࠞࡏ ϗετ໊ɾFQDNΛ࢖͏ ਖ਼
108. 108 ʲࢀߟʳΞϓϦέʔγϣϯͷ*1WରԠ ͷϙΠϯτ Ethernet IPʢv4/v6ʣ TCP / UDP ΞϓϦέʔγϣϯ OS ϛυϧ΢ΣΞʗ
 ϑϨʔϜϫʔΫ ΞϓϦέʔγϣϯ OS ϑϨʔϜϫʔΫ HTTP/HTTPS SMTP, SSH,
 ιέοτ௨৴ͳͲ ΫϥΠΞϯτ αʔό ᶃIPv4/IPv6྆ରԠͷ
 ɹϓϩάϥϛϯάݴޠͱ࣮ߦ؀ڥΛ࢖͏ ᶄ௨৴ॲཧΛIPv4/IPv6ͷ
 ɹ྆ํʹରԠͤ͞Δ ᶅσʔλͱͯ͠IPΞυϨεΛ
 ɹѻ͏ՕॴΛIPv4/IPv6ͷ
 ɹ྆ํʹରԠͤ͞Δ
109. 109 /FUXPSLJOH
     0WFSWJFXΛಡΈղ͍ͨ ݁Ռᶃ "QQMF ͸
     ίετͷࢹ఺Λॏࢹͯ͠ɺαʔϏεϓϩόΠμʔ͕
 *1W
     
     %/4/"5 Λબ୒͢Δͱ༧ଌ
     DNS64/NAT64 Ͱಈ͚͹OK ͱߟ͑ͨ
 㱺 ɾDNS64/NAT64 Ͱͷಈ࡞Λ App Store ͷཁ݅ʹͨ͠
 ɹ ɾMacʹݕূ؀ڥΛఏڙ͢ΔػೳΛ࣮૷ ͔͠͠ɺຊདྷɺΞϓϦέʔγϣϯʹٻΊΒΕΔ͜ͱ͸ɺ
 IPv6 ؀ڥͰ΋ IPv4 ؀ڥͰ΋ IPv6/IPv4ࠞࡏ؀ڥʢσϡΞϧελοΫʣͰ΋ಈ࡞͢Δ͜ͱ Apple ͷ͜ͷߟ͑Ͱ͸ຬͨͤͳ͍
110. 110 /FUXPSLJOH
     0WFSWJFXΛಡΈղ͍ͨ ݁Ռᶄ ࣮ࡍͷରԠͱͯ͠͸
     *1Wαϙʔτ࣌ͷΑ͋͘Δোน
     ௚઀*1ΞυϨε͕࢖༻͞ΕͯΔ
     *1WඇରԠͷ"1*࢖ΘΕͯΔ
     ΞυϨεϑΝϛϦετϨʔδίϯςφͷ༰ྔ͕ෆ଍
     ͕ੜ͡ͳ͍Α͏ʹ͢ΔͨΊʹ
     ΞϓϦέʔγϣϯ*1WରԠڞ௨ͷ
     1. IPΞυϨεϦςϥϧͰ͸ͳ͘ɺϗετ໊ɾFQDNͷ࢖༻ 2. దਖ਼αΠζͷετϨʔδίϯςφͷ࢖༻ 3. IPv4 ݻ༗ͷAPIΛ࢖༻͍ͯ͠ͳ͍͔֬ೝ ͱ "QQMF ݻ༗ͷ
     4. ߴϨϕϧωοτϫʔΫϑϨʔϜϫʔΫͷ࢖༻ 5. ϓϦϑϥΠτͳ͠ͷ઀ଓ Λߦ͍ɺݕূ͢Δ͜ͱΛٻΊ͍ͯΔ
     ্ه 1ʙ5 ʹै͍࣮૷͢Ε͹ɺDNS64/NAT64؀ڥ͚ͩͰͳ͘ɺσϡΞ ϧελοΫ؀ڥͰ΋ಈ࡞͢Δ
111. 111 
     "QQMF ͷ *1W
 ɹɹ
     ରԠɺݕূ ʙMacʹΑΔݕূ؀ڥͷ࡞Γํʙ
112. 112 .BD
     ʹΑΔݕূ؀ڥ ઌड़ͷʮ/FUXPSLJOH
     0WFSWJFXʯͷதͰ঺հ
     04
     9
     ʢ&M
     $BQJUBOʣҎ߱ͷ 04
     9
     
     NBD04
     Ͱ͸ɺΠ ϯλʔωοτڞ༗ͷΦϓγϣϯͰ DNS64/NAT64 ͕ར༻Մೳ ஫ҙɿඪ४Ͱ͸ɺΠϯλʔωοτଆʢUplinkʣ͸
 ɹɹɹ IPv4 ͔͠௨৴Ͱ͖ͳ͍
 ɹɹɹʢMac ͔Β͸ɺIPv6/IPv4ͱ΋ʹ௨৴Մೳʣ internet IPv6 IPv4 IPv4 iOSσόΠε Mac ϧʔλ DNS64/NAT64
113. 113 ࡞ͬͯΈΑ͏ʂ.BD ʹΑΔ %/4/"5 ؀ڥᶃ  γεςϜ؀ڥઃఆΛ։͘
      <0QUJPO> ΩʔΛԡ͠ͳ͕Βɺʮڞ༗ʯΛ։͘ [Option] ΩʔΛ
 ԡ͠ͳ͕ΒɺΫϦοΫ
114. 114 ࡞ͬͯΈΑ͏ʂ.BD ʹΑΔ %/4/"5 ؀ڥᶄ  ʮ/"5ωοτϫʔΫΛ࡞੒ʯΛνΣοΫ্ͨ͠Ͱɺ
 ʮΠϯλʔωοτڞ༗ʯΛνΣοΫ ᶃνΣοΫ ᶄνΣοΫ ΫϥΠΞϯτଆΛ Wi- Fiʹ͢Δ৔߹͸ɺ ʮWi-FiΦϓγϣϯʯ Λ։͘
115. 115 ࡞ͬͯΈΑ͏ʂ.BD ʹΑΔ %/4/"5
     ؀ڥᶅ ʢࢀߟʣ8J'J ΦϓγϣϯΛઃఆ͢Δ
     ηΩϡϦςΟͰʮ81"ύʔιφϧʯΛબͼɺύεϫʔυΛઃఆ ͢Δ
116. 116 ࡞ͬͯΈΑ͏ʂ.BD ʹΑΔ %/4/"5
     ؀ڥᶆ ֬ೝ͕ೖΔͷͰɺʮ։࢝ʯ
117. 117 ࡞ͬͯΈΑ͏ʂ.BD ʹΑΔ %/4/"5 ؀ڥᶇ 8J'J ʹ઀ଓͨ͠
     J1IPOF
     ͷঢ়گ IPv4 ΞυϨε
 ͳ͠ IPv6ϕϯνϚʔΫΞυϨε ʢRFC5180ʣ
118. 118 .BD ʹΑΔ %/4/"5
     ݕূ؀ڥ͸
 ׬੒͕ͨ͠ʜ ͜ΕͰɺ"QQ
     4UPSF ͕ཁٻ͢Δ *1W
     %/4/"5 Ͱͷಈ࡞͸ݕূͰ͖Δʢ͸ ͣʣ ͔͠͠ɺIPv6 ಉ࢜ͷಈ࡞͸ݕূͰ͖ͳ͍ͷͰɺ ৔߹ʹΑͬͯ͸ App Store ͷϨϏϡʔཁ݅Λຬͨͤͳ͍ Let’s Hackʢվ଄ͯ͠ΈΔʣ ݕূͨ͠ओͳਓɿ ɹIPv6ීٴɾߴ౓Խਪਐڠٞձ ΞϓϦέʔγϣϯͷIPv6ରԠݕ౼SWGɹ౻࡚ ஐ޺ࢯɺ౉ล ࿐จ ɹJPNICɹࠤ౻ लथࢯ ࢀߟɿ https://forums.developer.apple.com/message/147579#147579
119. 119 .BD
     ʹΑΔ %/4/"5
     ݕূ؀ڥ Λվ଄ᶃ .BD
     ͷ %/4/"5 Λߏ੒͢Διϑτ΢ΣΞ
     %/4ɿ6OCPVOE
     ઃఆϑΝΠϧɿFUDDPNBQQMFNJTVOCPVOEDPOG
     ϧʔλ޿ࠂʢ3"ʣɿSUBEWE
     3%/44Ͱ ϦκϧόͷΞυϨεΛ޿ࠂ
     ઃఆϑΝΠϧɿFUDDPNBQQMFNJTSUBEWEDPOG
     ύέοτϑΟϧλɿQG
     6QMJOL ͕ *1W
     ͔͠௨৴Ͱ͖ͳ͍ཧ༝
     ᶃ ΫϥΠΞϯτʹׂ౰ΔΞυϨε͕ϕϯνϚʔΫΞυϨε
 㱺
     άϩʔόϧΞυϨεʹมߋ͠ͳ͍ͱɺ֎෦͔Β *1W
     Ͱ౸ୡͰ͖ͳ͍
     ᶄ VOCPVOE
     ͷઃఆͰ EOTTZOUIBMM
     ͕༗ޮʹͳ͍ͬͯΔ
 㱺
     *1W
     αʔόͷ໊લղܾ΋ %/4 ม׵͞ΕΔ internet ϧʔλ Mac ཧ༝ᶃ 2001:2::/64 UplinkଆI/F
 2001:db8:1::2/64 unbound rtadvd ཧ༝ᶄ
120. 120 .BD
     ʹΑΔ %/4/"5
     ݕূ؀ڥ Λվ଄ᶄ վ଄खॱ
     ᶃ ্ྲྀͷϧʔλʹͯɺΫϥΠΞϯτʹ BEWFSUJTF
     ͢Δ QSFGJY
     Λɺ
 .BDͷ6QMJOL
     ΞυϨεʹϧʔςΟϯά
     ԼਤͷྫͰ͸ɺEC
     Λ EC
     ΁ϧʔςΟϯά
     ᶄ FUDDPNBQQMFNJTSUBEWEDPOG Λมߋ
     ΫϥΠΞϯτʹ BEWFSUJTF
     ͢Δ QSFGJY
     SEOTT
     ͷ஋Λมߋ
     ᶅ FUDDPNBQQMFNJTVOCPVOEDPOG Λมߋ
     EOTTZOUIBMM ͷߦΛ࡟আ
     JOUFSGBDF
     
     
     
     JOUFSGBDF
     <SOETTαʔόͷΞυϨε>
     ʹมߋ
     ᶆ VOCPVOE
     ͓Αͼ SUBEWE
     Λ LJMM
     ͯ͠ىಈ͠௚͠
     ஫ҙɿ্هઃఆϑΝΠϧ͸ɺNAT64༗ޮ࣌ͷΈग़ݱ͢Δ /"5 Λແޮʹͨ࣌͠఺Ͱઃఆ͕ॳظԽ͞ΕɺઃఆϑΝΠϧ΋ফࣦ internet ϧʔλ Mac खॱᶄ, ᶅ, ᶆ खॱᶃ 2001:db8:2::/64 UplinkଆI/F
 2001:db8:1::2/64 unbound rtadvd
121. 121 .BD
     ʹΑΔ %/4/"5
     ݕূ؀ڥ Λվ଄ᶅ ͜ΕͰɺIPv6ಉ࢜ͷ௨৴΋ߦ͑Δ DNS64/ NAT64 ؀ڥͷߏங͕Ͱ͖ͨʂ ߏஙํ๏ͷৄࡉͳखॱ͸ɺޙ೔ɺ*1Wීٴɾ
 ߴ౓Խਪਐڠٞձ *1W*1Wڞଘ8(
 ΞϓϦέʔγϣϯͷ*1WରԠ48(ʹͯ
 υΩϡϝϯτԽ͠ɺެ։͢Δ༧ఆͰ͢
122. 122 "QQMFελοϑͷϑΥʔϥϜ΁ͷ౤ߘΛ ಡΉͱʜᶃ ࣮ࡍͷ౤ߘ
     IUUQTGPSVNTEFWFMPQFSBQQMFDPNNFTTBHF 
     ϦδΣΫτ͞ΕΔͷ͸ 
 *1W ʹؔ͢Δ΋ͷ
 ͚ͩͰ͸ͳ͍
     ʢ*1WରԠҎલʹʣ
 "QQ
     ͦͷ΋ͷ͕ࣦഊͯ͠
 ͍Δέʔε΋͋Δ
123. 123 "QQMFελοϑͷϑΥʔϥϜ΁ͷ౤ߘΛ ಡΉͱʜᶄ "QQ
     ϨϏϡʔͰݟ͍ͯΔͷ͸ %/4/"5 ͚ͩͰ͸ͳ͘ɺ *1WUP*1W
     ͷ ઀ଓੑ΋ݟ͍ͯΔ
     "QQ
     ϨϏϡʔͷωοτϫʔΫߏ੒͸ɺݫີʹ͸ɺ/FUXPSLJOH
     0WFSWJFXʹ
 ॻ͔Ε͍ͯΔ %/4/"5
     ͱҟͳΔ
     αʔό͕*1WʹରԠ͍ͯ͠ΔͳΒɺ/"5Ͱม׵ͤ͞ͳ͍Ͱ௚઀௨৴͢΂͠
     αʔό͕IPv6ରԠ͍ͯͯ͠΋ɺIPv6Ͱ઀ଓͰ͖ͳ͍͜ͱ͕͋Δ DNSొ࿥໊͕ޡ͍ͬͯΔ DNS͸ਖ਼ͯ͘͠΋ɺαʔό͕ IPv6 Ͱ listen ͍ͯ͠ͳ͍ αʔό͕ IPv6 Ͱ listen ͍ͯͯ͠΋ɺIPv6 ͰϦΫΤετ͕དྷΔͱࣦഊ͢Δ શͯͷαʔόΛνΣοΫ͢Δ͜ͱ ϥΠϒϥϦʹӅ͞Ε͍ͯΔαʔό໊ ଞͷωοτϫʔΫϦΫΤετͷ݁Ռͱͯ͠ App ʹฦ͞ΕΔαʔό໊ HTTP & HTTPS ʹ͓͍ͯ͸ɺଞͷαʔό΁ͷϦμΠϨΫτ DNS ͷ CNAMEϨίʔυ
124. 124 4ষ·ͱΊ "QQMF
     ͸ɺ64ͷϞόΠϧΩϟϦΞͷಈ͖͔Βɺ͜Ε͔Β͸ *1W
     ͕ϝΠϯͰɺ
 *1W
     ͸/"5ͰΞΫηε͢Δͱ༧ଌ
     "QQMF
     ͸ɺJ04
     "QQ
     ͷཁ݅ͱͯ͠
     *1WPOMZ ωοτϫʔΫͰͷಈ࡞Λཁٻ͠ɺ
 ϨϏϡʔʢ৹ࠪʣͰ֬ೝ͍ͯ͠Δ
     ઀ଓઌ͕ *1W
     αʔόͷ৔߹͸ɺ%/4/"5 ؀ڥͰ
     ઀ଓઌ͕ *1W αʔόͷ৔߹͸ɺ*1Wͷ௚઀௨৴Ͱ
     J04
     "QQ ͷ
     *1WPOMZ
     ωοτϫʔΫͰͷಈ࡞Λ࣮ݱ͢Δʹ͸ /FUXPSLJOH
     0WFSWJFX
     Λࢀߟʹ͢Δͷ͕ྑ͍
     J04
     "QQ
     ͷ *1WPOMZ
     ωοτϫʔΫͰͷಈ࡞ͷݕূ͸ɺ.BD
     ʹΑΔ %/4 /"5 ͕؆୯
     վ଄ͯ͠ *1W
     αʔόͱͷ઀ଓੑΛ֬อ͢Ε͹ɺݕূ͕͞Βʹ؆୯ʹͳΔ
     ϑΥʔϥϜͷ౤ߘ΋ͪΌΜͱಡ΋͏
125. ͓ΘΓʹ 125
126. 126 ·ͱΊᶃ *1WΛ࢖͑Δ؀ڥ͕૿͍͑ͯΔ
     *1Wͱ*1W͸௚઀௨৴Ͱ͖ͳ͍
     8FCαʔϏεͷ*1WରԠʹ͸ΞϓϦέʔγϣϯͷର Ԡ͕ෆՄܽ
     *1ΞυϨεͷϋʔυίʔσΟϯά͸μϝɻθολΠɻ
     ɹ
127. 127 ·ͱΊᶄ ΞϓϦέʔγϣϯͷ*1WରԠͷجຊํ਑
     *1WରԠʹ*1W*1Wͷ྆ํͰಈ࡞ͤ͞Δ͜ͱ
     γϯάϧιʔείʔυͰରԠ͢Δ
     ΞϓϦέʔγϣϯͷ*1WରԠͷϙΠϯτ
      *1W*1W྆ରԠͷϓϩάϥϛϯάݴޠͱ࣮ߦ؀ڥΛ࢖͏
      ௨৴ॲཧΛ*1W*1Wͷ྆ํʹରԠͤ͞Δ
      σʔλͱͯ͠*1ΞυϨεΛѻ͏ՕॴΛ*1W*1Wͷ྆ํʹ
 ରԠͤ͞Δ
     ɹ
     "QQMF
     ͸*1W0OMZωοτϫʔΫͰͷಈ࡞Λ
     "QQ
     4UPSFͷཁ݅ʹ͠ɺ
 ݕূ؀ڥͷߏங͕༰қʹߦ͑Δ࢓૊ΈΛ
     .BD
     ʹ౥ࡌͨ͠
     ɹ ܾͯ͠೉͘͠ͳ͍ʂ ࠓ೔͔Β։ൃ͢ΔWebαʔϏε͸IPv6ʹରԠͤ͞Α͏ʂ
128. 128 ͖ͭͮ͸8FCͰʢࢀߟจ ݙʣ ʮΞϓϦέʔγϣϯͷ*1WରԠΨΠυϥΠϯ
     جૅฤʯʗ *1Wීٴɾߴ౓Խਪਐڠٞձ
     *1W*1Wڞଘ8(
     
 ΞϓϦέʔγϣϯͷ*1WରԠݕ౼48(
     IUUQXXXWQDKQKQFOUSZXH JQWQIUNM
     ʮΞϓϦέʔγϣϯͷ*1WରԠΨΠυϥΠϯ
     8FCΞϓϦ ฤʢҊʣʯʗ*1Wීٴɾߴ౓Խਪਐڠٞձ
     *1W*1Wڞଘ 8(
     ΞϓϦέʔγϣϯͷ*1WରԠݕ౼48(
     IUUQXXXWQDKQKQFOUSZXH JQWXFCQIUNM
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