Japan Registry Service Co., Ltd. JPRS matuura@jprs.co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.1 TCP IP DNS Windows Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.2 1
TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.5 OS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.6 3
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.7 TCP/IP TCP: Transmission Control Protocol IP: Internet Protocol TCP/IP TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.8 4
TCP/IP (HTTP, SMTP) DNS (TCP,UDP) (IP) 7 5 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.9 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.10 5
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.11 TCP/IP (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.12 6
(HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.13 (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.14 7
(HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.15 (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.16 8
(HTTP, SMTP) DNS (TCP,UDP) (IP) Etc Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.17 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.18 9
ADSL ISDN Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.19 TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.20 10
Windows Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.21 (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.22 11
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.23 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.24 12
NIC Network Interface Card LAN NIC Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.25 PC Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.26 13
IP IP IP A IP B IP C Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.27 ADSL ISP YAMAHA RTA54i Cisco7505 PC Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.28 14
UTP UTP: Unshielded Twist Pair ISDN ADSL RJ-11 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.29 5 UTP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.30 15
ADSL LAN UTP UTP PC PC PC IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.31 PC PC PC IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.32 16
IP (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.33 IP IP ADSL IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.34 17
IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.35 IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.36 18
IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.37 IP IP IP PC IP = IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.38 19
IP IP IP A IP B IP A IP D IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.39 IP 2 IP 2 2 2 0 2 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.40 20
2 2 0 1 10 11 100 101 110 10 0 1 2 3 4 5 6 11111111 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.41 255 IP IP 2 11000000101010000000000000001010 11000000. 10101000. 00000000. 00001010 192. 168. 0. 10 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.42 21
IP IP 1 IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.43 IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.44 22
IP IP 192.168.0. 1 192.168.0. 200 IP 192.168.0 JPRS 1 200 1 12 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.45 2 256 65536 16 16 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.46 23
IP IP 11000000101010000000000000001010 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.47 IP IP IP 24 24 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.48 24
IP IP IP 24 192.168.0.0 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.49 IP IP IP IP 24 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.50 192.168.0.255 25
IP IP 1 IP DHCP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.51 IP DHCP Dynamic Host Configuration Protocol IP DHCP IP DHCP IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.52 26
IP Internet Registry Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.53 IP Internet Registry IANA ICANN IP APNIC JPNIC Internet Registry ISP IP ISP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.54 27
IP IANA ICANN APNIC JPNIC 61.0.0.0 61.255.255.255 61.112.0.0 61.127.255.255 61.120.0.0 61.120.255.255 IP 61.120.151.80 ISP 61.120.151.64 61.120.151.127 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.55 IP NAT 10.0.0.0 10.255.255.255 172.16.0.0 172.31.255.255 192.168.0.0 192.168.255.255 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.56 28
NAT NAT Network Address Translation NAT NAT 192.168.0.10 A.B.C.D Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.57 IP Windows IP PC1 IP IP 192.168.0.1 24 192.168.0.1 PC1 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.58 29
Windows XP NIC Intel R PRO/100 VE TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.59 IP IP 192.168.0.1 255.255.255.0 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.60 30
(HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.61 IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.62 31
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.63 IP IP A A A B B Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.64 32
A 192.168.0.0 172.16.0.0 10.0.0.0 R1 192.168.0.1 10.0.0.1 R1 R2 10.0.0.1 A direct B direct B direct C direct C R2 A R1 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.65 B R2 C Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.66 33
IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.67 A 192.168.0.0 172.16.0.0 10.0.0.0 R1 B R2 C R1 R2 A direct B direct IP B direct C direct Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.68 34
A 192.168.0.0 172.16.0.0 10.0.0.0 R1 B R2 C R1 R2 A direct B direct B direct C direct C R2 A R1 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.69 EGP External Gateway Protocol IGP Internal Gateway Protocol A EGP IGP B IGP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.70 35
EGP A IGP A EGP IGP IGP EGP IGP B B Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.71 IGP RIP Routing Information Protocol OSPF Open Shortest Path Fast EGP ISP BGP Border Gateway Protocol Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.72 36
PC Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.73 IP IP 192.168.0.254 PC1 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.74 37
Windows IP IP 192.168.0.254 192.168.0.254 PC1 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.75 TCP/IP IP 192.168.0.254 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.76 38
TCP, UDP (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.77 IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.78 39
TCP, UDP TCP TCP Transmission Control Protocol UDP User Datagram Protocol Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.79 TCP UDP IP Web TCP UDP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.80 40
HTTP TCP 80 SMTP TCP 25 DNS UDP 53 TCP 25 0 1023 Well Known Port Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.81 TCP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.82 41
UDP TCP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.83 TCP UDP TCP UDP TCP Web TCP UDP DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.84 42
TCP UDP TCP UDP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.85 TCP UDP 139 Reject YAMAHA RTA54i Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.86 43
DNS (HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.87 IP www.jprs.co.jp DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.88 44
IP DNS Domain Name System Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.89 DNS IP IP DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.90 45
http://www.jprs jprs.co..co.jp matuura@example.co. example.co.jp IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.91. www http://www.jprs jprs.co..co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.92 46
example.co.jp TLD SLD 3LD Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.93 gtld generic TLD.com,.net,.org,.info.aero,.biz,.coop,.museum,.name,.pro,.gov,.edu,.mil,.int cctld country code TLD TLD.jp,.kr,.fr,.tv, 243 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.94 47
SLD TLD.jp.kr JP {ac, ad, co, ed, go, gr, ne, or, lg}.jp tokyo.jp, osaka.jp, JP SLD jprs.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.95 DNS IP www.example.co.jp 192.168.0.10 IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.96 48
DNS DNS DNS www.example.jp IP DNS 192.168.0.10 DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.97 DNS DNS www.example.jp 192.168.0.10 DNS 1 DNS DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.98 49
DNS DNS TLD DNS TLD DNS. JPRS.jp DNS SLD, 3LD DNS DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.99 DNS. com jp kr ac co jprs example JP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.100 50
DNS jp co.jp DNS DNS. Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.101 www.jprs.jp IP jp DNS jprs jp www.jprs.jp IP jprs.jp IP 61.120.151.80 DNS. Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.102 51
DNS DNS DNS DNS IP 192.168.0.100 PC1 DNS 192.168.0.100 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.103 DNS TCP/IP DNS 192.168.0.100 DNS DNS Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.104 52
(HTTP, SMTP) DNS (TCP,UDP) (IP) Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.105 IP TCP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.106 53
HTTP Hyper Text Transfer Protocol SMTP Simple Mail Transfer Protocol POP3 Post Office Protocol version 3 FTP File Transfer Protocol Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.107 http://www.jprs.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.108 54
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.109 DNS Web IP DNS DNS PC1 192.168.0.100 www.jprs.jp IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.110 55
DNS A DNS IGP EGP IGP IGP EGP IGP B Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.111 www.jprs.jp IP jp DNS jprs JP www.jprs.jp IP JPRS.JP IP 61.120.151.80 DNS. Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.112 56
Web Web www.jprs.jp IP HTTP HTTP TCP 80 TCP PC1 Web Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.113 HTTP Web HTTP Web GET /index.html HTTP/1.0 PC1 HTML Web Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.114 57
Web Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.115 HTTP HTTP TCP TCP IP IP IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.116 58
Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.117 TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.118 59
IPv6 Internet Protocol version 6 IPv4 Internet Protocol IPv4 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.119 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.120 60