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3 W I D E P R O J E C T 16 1 IRC IRC(Internet Relay Chat) IRC 2002 IRC IRC IRC IRC IRC 2002 IRC IRC IRC IRC IRC IRC IRC IP IRC IRC IRC IRC 2 1 IRC 1 IRC IRC IRC IRC 4 irc.tokyo.wide.ad.jp irc.kyoto.wide.ad.jp irc.fujisawa.wide.ad.jp irc6.kyoto.wide.ad.jp irc6.kyoto.wide.ad.jp IPv6 IRC IPv4 IRC IRC IRC 3 IRC 2002 IRC IRC IRC DoS DoS IRC IRC

4 16 W I D E P R O J E C T a n n u a l r e p o r t IRC 2002 IRC WG IRC DoS IRC WIDE AS 1. IRC IP 2. WIDE IRC ircd (hemp ) 7. ircd (mod modproxy ) 3 IP DoS 2 IRC 2 IRC DoS IRC DoS 3.1 IRC IP IRC WG IRC /24 irc.tokyo.wide.ad.jp irc.kyoto.wide.ad.jp irc.fujisawa.wide.ad.jp IP irc.tokyo.wide.ad.jp irc.kyoto.wide.ad.jp WIDE 3.2 WIDE IRC DoS IRC OS IRC IRC IRC irc.tokyo.wide.ad.jp NOC 1 / 4 irc.tokyo.wide.ad.jp NOC PC IRC IP E IRC IRC SYN 10 / IRC IRC WIDE TWO WG

5 W I D E P R O J E C T 10 / IRC 3.3 DoS WIDE AS AS BGP IRC IP /24 BGP AS IRC WG IRC AS 2 AS IRC WG IRC AS AS /24 AS 3.4 ircd (hemp ) IRC hemp hemp IRCnet split detection IRC Global servers/users IRC split mode IRC split mode channel channel operator IRC DDoS IRC IRCnet split IRC DDoS IRC IRCnet channel/nick IRC channel/nick DDoS hemp IRC IRCnet channel operator split DDoS DDoS IRC DDoS hemp 300 IRCnet hemp 3.5 ircd (mod webproxy ) IRC WG IRC mod webproxy HTTP CONNECT Open Proxy Open Proxy IRC mod webproxy TCP HTTP Open Proxy IRC WG mod webproxy Open Proxy

6 16 W I D E P R O J E C T a n n u a l r e p o r t IRC WG IRCnet IRCnet Open SOCKS mod socks 3.6 IRC *.my DoS AS IP 3.7 IRC IP IRC IP IP IRC DoS TCP tcpbridge ( ) (IRC :: ) IP (WIDE IRC ) (DoS ) ( IPv4 IPv6 ) ( IPv6 IPv4 ) tcpbridge IPv4 IPv6 listen accept connect connect 4 IRC 4.1 WIDE IRC IRCnet 2 IRCnet 4.1 IRC WIDE IRC

7 W I D E P R O J E C T Clients jp IRCnet IRC IRCnet *.stealth.net ircd.stealth.net ircd.stealth.net.se irc.ludd.luth.se irc.ludd.luth.se.de tu-muenchen.de irc.leo.org.tw irc.nctu.edu.tw IRCnet irc.dti.ne.jp dti irc.huie.hokudai.ac.jp 6667 irc.fujisawa.wide.ad.jp irc.kyoto.wide.ad.jp irc.tokyo.wide.ad.jp irc6.kyoto.wide.ad.jp 6667 IPv6 IRCnet 4.2 wide.ad.jp 4 WIDE irc.kyotoirc.tokyo irc.fuijsawa IRCnet irc.tokyo.wide.ad.jp IRCnet 4.1 IRC *.jp IRC DNS 4.2 irc.kyoto.wide.ad.jp irc.tokyo irc.kyoto DoS irc.tokyo 239

8 16 W I D E P R O J E C T a n n u a l r e p o r t irc.tokyo (irc.kyoto) irc.tokyo irc.kyoto 8 9 irc.kyoto irc.tokyo irc.tokyo DoS irc.fujisawa IRC IPv irc.kyoto irc.tokyo

9 W I D E P R O J E C T ( 11 8 ) 4.3 PingTimeout IRC

10 16 W I D E P R O J E C T a n n u a l r e p o r t 4.6. IRC /50 18 Connect IRC Connect 23 8 DisconnectPingtimeout IRC IRC () 242

11 W I D E P R O J E C T 4.8. () exp(log(10)/10) (125.9 ) 15 2 DoS 3 irc.tokyo IRC

12 W I D E P R O J E C T a n n u a l r e p o r t hour AS clients AS clients AS clients AS clients 1 OCN OCN OCN OCN ODN ODN ODN ODN NTTPC NTTPC NTTPC NTTPC INFOWEB INFOWEB INFOWEB INFOWEB SO-NET SO-NET SO-NET SO-NET ATHOME ATHOME ATHOME ATHOME DION DION DION DION MESH MESH IIJ IIJ IIJ IIJ MESH MESH ZAQ ZAQ ZAQ DTI AS clients AS clients AS clients AS clients 1 OCN OCN OCN OCN NTTPC NTTPC NTTPC NTTPC ODN ODN ODN ODN INFOWEB INFOWEB INFOWEB INFOWEB SO-NET SO-NET SO-NET SO-NET ATHOME ATHOME ATHOME ATHOME DION DION IIJ IIJ IIJ IIJ DION DION MESH MESH MESH MESH DTI DTI DTI DTI AS clients AS clients AS clients AS clients 1 OCN OCN OCN OCN NTTPC NTTPC NTTPC NTTPC ODN ODN ODN ODN INFOWEB INFOWEB INFOWEB INFOWEB SO-NET SO-NET SO-NET SO-NET ATHOME ATHOME ATHOME ATHOME IIJ IIJ DION DION DION DION IIJ IIJ MESH MESH MESH MESH DTI ASAHI-NET ZAQ ZAQ AS clients AS clients AS clients AS clients 1 OCN OCN OCN OCN NTTPC NTTPC NTTPC NTTPC ODN ODN ODN ODN INFOWEB INFOWEB INFOWEB INFOWEB SO-NET SO-NET SO-NET SO-NET ATHOME ATHOME ATHOME ATHOME DION DION DION DION IIJ IIJ IIJ IIJ MESH MESH MESH MESH ZAQ ZAQ ZAQ ZAQ AS clients AS clients AS clients AS clients 1 OCN OCN OCN OCN NTTPC NTTPC ODN ODN ODN ODN NTTPC NTTPC INFOWEB INFOWEB INFOWEB INFOWEB SO-NET SO-NET SO-NET SO-NET ATHOME ATHOME ATHOME ATHOME DION DION DION DION IIJ IIJ IIJ MESH MESH MESH MESH IIJ ZAQ ZAQ ZAQ ZAQ AS clients AS clients AS clients AS clients 1 OCN OCN OCN OCN ODN ODN ODN ODN NTTPC NTTPC NTTPC NTTPC INFOWEB INFOWEB INFOWEB INFOWEB SO-NET SO-NET SO-NET SO-NET ATHOME ATHOME ATHOME ATHOME DION DION DION DION MESH MESH MESH MESH IIJ IIJ IIJ IIJ ZAQ ZAQ ZAQ ZAQ

13 W I D E P R O J E C T IRC tokyo kyoto AS % AS % 1 OCN OCN ODN ODN NTTPC NTTPC INFOWEB INFOWEB IIJ SO-NET SO-NET IIJ ATHOME ATHOME DION DION MESH DTI DTI ZAQ ASAHI-NET MESH SINET ASAHI-NET ZAQ AT&T TTNET SINET AT&T TTNET DOLPHIN METALLIC RIM DOLPHIN OMP MEX METALLIC CTC WIDE PSI-NET TELEWAY WIDE CTC HIGHWAY PSI-NET RIM HIGHWAY OMP MEX INTERVIA INTERVIA ALPHA-NET IDC HANSHIN ALPHA-NET TELEWAY PANANET NCA SANNET PANANET IRC CPU IRC IRC IRC IP AS AS 10 AS SINET daemon 245

14 16 W I D E P R O J E C T a n n u a l r e p o r t RIM ISP IRC AS 4.4 AS AS AS AS AS SINET NCA IRC 4 IRC 5.1 IRC IRC IRC IRC IRC IRC 5.2 IRC IRC RFC IRC Cluster Server IRC IRC IRC Secure IRC net IRC IRC IRC SSL SSL 246

15 W I D E P R O J E C T? IRC IRC DoS IRC IRC IRC 5.3 IRC IRC IRC IRC IRC IRC IRC IRC IRC IRC TCP IRC 1 2 ping traceroute IRC IRC syslog IRC IRC IRC 5.4 IRC IRC Overray Network

16 16 W I D E P R O J E C T a n n u a l r e p o r t TCP IRC DCC(Direct Client Connection) NAPT DCC CTCP IRC IRC DoS IRC IRC 5.5 IRC IRC iauth IP AS iauth ident, socks, http DoS IRC Open HTTP Proxy mod webproxy Open HTTP version IRC TCP TCP fingerprint OS WIDE IRC IRC IRC DoS 248

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