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November, 2005

IPv6 DNS Service Deployment in Korea. November, 2005. Dr. Sir, Jae-Chul sir@nida.or.kr. Contents. Background & Need. Ⅰ. Goals. Ⅱ. Korea IPv6 Infra. Status. Ⅲ. KR Main Strategy. Ⅳ. KR Deployment Status. Ⅴ. KR Future Service Plan. Ⅵ. International Trend. Ⅶ. Background & Need. Ⅰ.

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November, 2005

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  1. IPv6 DNS Service Deploymentin Korea November, 2005 Dr. Sir, Jae-Chul sir@nida.or.kr

  2. Contents Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ KR Main Strategy Ⅳ KR Deployment Status Ⅴ KR Future Service Plan Ⅵ International Trend Ⅶ

  3. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend Ⅳ KR Main Strategy Ⅴ KR Deployment Status Ⅵ KR Future Service Plan Ⅶ

  4. Background & Need IPv4 DNS IPv6 DNS Need for systematic .KR DNS and tech. for early settlement of local IPv6 DNS service the importance of DNS protocol is increased under Internet environment, DNS tech. is advanced Advent of IPv4 (Early 1980s) Activated IPv4 (1990s) Advent of IPv6 (1999) Depletion of IPv4 (1994) • Activated hi-speed Internet service • Development of wireless/mobile tech. • Appearance of various new services • Advent of ubiquitous era • Arrangement for hi- performance IPv6 application test basis • Need for stable IPv6 DNS tech. • Increased Network/Host • Development of various application services • Early stage of Internet • Name-IP mapping table (hosts.txt file) • Needs for DNS

  5. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend Ⅳ KR Main Strategy Ⅴ KR Deployment Status Ⅵ KR Future Service Plan Ⅶ

  6. Goals in .KR IPv6 DNS Development of DNS service to provide stability toward IPv6 IPv4 Ocean IPv4 Only IPv4 Island IPv6 Only IPv6 testbed IPv6 Ocean IPv6 Island ․ ․․ Root name server (IPv4/IPv6) www.krdnsv6.or.kr ? local name server (IPv4/IPv6) • Network side - IPv4/IPv6 dual-stack • DNS delegation config. - Need to IPv6 delegation under root name server .KR name server (IPv4/IPv6) query .or.kr name server (IPv4/IPv6) answer user (IPv4, IPv6, IPv4/IPv6) Connect (IPv6 Socket 2001:dc5:a::100) www.krdnsv6.or.kr web server (IPv4/IPv6) Connect (IPv4 Socket 202.31.190.100)

  7. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend Ⅳ KR Main Strategy Ⅴ KR Deployment Status Ⅵ KR Future Service Plan Ⅶ

  8. Korea IPv6 Infra. Status(1/4) Korea IPv6 Network Topology

  9. Korea IPv6 Infra. Status(2/4) IPv6 Network Deployment in Korea KOREAv6 TEIN IPv6 &6NGIX • Native IPv6 Trial Service Network in Korea • NIDA participates in this project for “TEST.KR” IPv6 trial DNS Service KOREN &KREONET2 IPv6 • TEIN (Trans Eurasia Information Network) : Continetal IPv6 network between Asia & Europe • 6NGIX : IPv6 Internet Exchange Point in Korea(by NCA) 6Bone-KR • KOREN, First native IPv6 network in Korea(by KT) • KREONET2(by KISTI) • R&D network • First IPv6 experimental network in Korea • 78+ org. has involved in 6Bone-KR • (www.6bone.ne.kr) 2004~ 2001~ 1999~ 1998~

  10. Korea IPv6 Infra. Status(3/4) KRDNSv6 Service based on Korea IPv6 Infra. KOREAv6 6KANET, KOREN, KREONET, 6NGIX, ISP (IPv4/IPv6) Internet (IPv4) a.dns.kr (NIDA) b.dns.kr (KT) Global IPv6 Network c.dns.kr (Dacom) IPv6 firewall IPv6 DNS Testbed (NIDA) KRDNSv6 (IPv4/IPv6) d.dns.kr (Dacom) e.dns.kr (KISTI) Web TEST.KR Local DNS for KOREAv6 Trial Service g.dns.kr (NIDA) .KR DNS (IPv4 only) f.dns.kr (Hanaro)

  11. KREONET 6KANet ISP 6NGIX KOREN Korea IPv6 Infra. Status(4/4) KOREAv6 project • National trial IPv6 service network which is interconnected with existing IPv6 network (e.g., 6KANET, KOREN, KREONET, 6NGIX, commercial ISP network) • Various IPv6 based trial services(VoIPv6, IPv6 Streaming, CDMA-basedHome Network, IPv6 G/W, MobileIPv6, IPv6 DNS and so on) are tested ISP Service Campus Equipment Test Government Home Network IPv6 portal Enterprise HDTV Hospital CDMA/WCDMA

  12. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend Ⅳ KR Main Strategy VI KR Deployment Status Ⅵ KR Future Service Plan Ⅶ

  13. Local Strategy in IPv6 DNS Providing Stable IPv6 DNS Service Providing Tech. information • After deployment, trial service commencement and DNS operational tech. accumulation through service expansion - cooperation with other organization in .KR DNS trial service - Sharing DNS tech. by launching web site • Deploying IPv6 while keeping stability of existing IPv4 based 6 .KR DNS service - After additional construction of IPv6 .KR Secondary DNS (g.dns.kr) - Applying IPv6 to existing DNS step by step

  14. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend Ⅳ KR Main Strategy Ⅴ KR Deployment Status V KR Future Service Plan Ⅶ

  15. IPv6 DNS Deployment Milestone • Construction of 7th .KR dual- stack server & network [KRDNSv6 test network] • Delegation of IPv6 AAAA of .kr name server to root DNS zone • Registration of IPv6 reverse of .kr name server to APNIC • Launching DNS web page (http://www.krdnsv6.or.kr) • Construction of tunneling IPv6 network & IPv4/IPv6 interoperability test • Construction of Native-IPv6 network • Construction of IPv6 DNS trial system & IPv4/IPv6 interoperability test • Education(NGI2 & IPv6 DNS workshop) • Publication of ‘DNS Guideline’ 2004 2000 ~2003

  16. Trial KRDNSv6 Service (1/3) Trial IPv6 DNS Service through KRDNSv6 IPv4/IPv6 based local DNS network for IPv6 network What is KRDNSv6 ? Construction of trial IPv6 service network through trial IPv6 deployment to .kr domain in 2004 Construction of IPv4/IPv6 interoperable network through cooperation with KOREAv6 Structure of KRDNSv6 Construction of ‘IPv6 DNS preliminary test network’ for IPv6 DNS related technical analysis Fully equipped environment for technical analysis in depth

  17. Stabilized IPv6 DNS Service System Trial KRDNSv6 Service (2/3) .KR DNS IPv6 System Construction Status IPv6 delegation to root DNS IPv6 reverse registration to APNIC Consistent domain name system KR. NS a.dns.kr. : KR. NS g.dns.kr. a.dns.kr. A 202.30.50.50 : g.dns.kr. A 202.31.190.1 g.dns.kr.AAAA 2001:dc5:a::1 • Registration of reverse delegation to APNIC in /32 a.dns.kr b.dns.kr c.dns.kr d.dns.kr e.dns.kr f.dns.kr g.dns.kr IPv4 [6] - IPv4/IPv6 [1]

  18. Trial KRDNSv6 Service (3/3) Trial KRDNSv6 Service Topology as of March. 2005 IPv4 (query/response) IPv6 (query/response) Root DNS ROOT(.) Trial KRDNSv6 network KR IPv4/IPv6 .KR DNS PE GO OR TEST IPv4 .KR DNS IPv4/IPv6 DNS mic.go.kr mic.go.kr IPv4 DNS IPv6 IPv4 IPv4 Application service IPv4/IPv6 user IPv4 user IPv4 based application service IPv4 Network IPv4/IPv6 Network

  19. Trial KRDNSv6 Operation Status (1/6) Launching KRDNSv6 Web Site TrafficMonitoring (MRTG) Statistics Zone checking tools • Providing upgraded services as of Aug. 1 • IPv4/IPv6 DNS statistics • Monitoring 7th .KR DNS(g.dns.kr) name server traffic • Providing zone checking tools for users • and so on

  20. : IPv6 DNS Query Counter : IPv6 DNS Response Counter Trial KRDNSv6 Operation Status (2/6) Statistics • .KR DNS (g.dns.kr) IPv6 delegation to root DNS zone • World first delegation to ccTLD (July 21, 2004) • IPv6-based DNS query/response increased as of July 21 (45,000 100,000) 100,000 45,000

  21. Trial KRDNSv6 Operation Status (3/6) Statistics • IPv6 DNS daily average query : 133,694 • vs. IPv4 DNS daily average query : 50,175,656 <.KR IPv6 DNS daily average query in every month, (Aug. ~ Dec., 2004)>

  22. Trial KRDNSv6 Operation Status (4/6) Statistics • Target server : g.dns.kr • Statistics on IPv6 based query by query type • PTR(67%) • A(14%) • A6(13%) • AAAA(5%) • and so on <IPv6-based RR Query Type>

  23. Trial KRDNSv6 Operation Status (5/6) Traffic Monitoring (MRTG) • Target server : g.dns.kr • March 15, 2005, PM 4:20 updated • IPv4/IPv6 DNS (daily) • Average reception: 431.3kbps • Average transmission: 665.6kbps • IPv4/IPv6 DNS (weekly) • Average reception: 396.3kbps • Average transmission: 613.3kbps Daily graph (Average in every 5 min.) Weekly graph (Average in every 30 min.)

  24. Trial KRDNSv6 Operation Status (6/6) Zone Checking Tools • Providing checking tools for domain config. • Problems in DNS operation • DNS config. error • etc. • Constructing stabilized DNS by providing web based zone checking tools for DNS operators

  25. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend Ⅳ KR Main Strategy Ⅴ KR Deployment Status Ⅵ KR Future Service Plan VI

  26. Future Service Plan in IPv6 DNS(1/2) DNS for Next Generation Internet 2006 ~ 2005 • IPv6 DNS service expansion - .KR name server distribution - .KR IPv6 DNS commercial service • IP Anycast study - IP Anycast(IPv4/IPv6) study and trial deployment • Study to overcome UDP packet size limit • Sharing IPv6 DNS technology • Settlement of IPv6 DNS - stable IPv4/IPv6 .KR DNS service • Transference current IPv4 based .KR DNS name server to IPv4/IPv6 • IP Anycast commercial service • Study on EDNS0 deployment plan

  27. Future Service Plan in IPv6 DNS(2/2) .KR IPv6 DNS expansion plan based on IP Anycast < Now > < 2005 Expansion Plan > .KR DNS Servers Europe / North America Mirror DNS a.dns.kr (NIDA, Seoul) BGP & BGP4+ b.dns.kr (KT, Seoul) IPv4/IPv6 Router IPv4/IPv6 a.dns.kr mirror DNS Globalization IPv4/IPv6 c.dns.kr (DACOM, Anyang) a.dns.kr d.dns.kr (DACOM, SanJose) Internet IPv4/IPv6 e.dns.kr (KISTI, Daejon) f.dns.kr (HANARO, Seoul) Southern province of Korea mirror DNS Location Distribution IPv4/IPv6 BGP & BGP4+ KRDNSv6 : .KR Slave([b-f].dns.kr) DNS : .KR Slave(a.dns.kr) DNS g.dns.kr (NIDA, Seoul) BGP & BGP4+ IPv4/IPv6 Router IPv4/IPv6 g.dns.kr mirror DNS : a.dns.kr Mirror DNS : g.dns.kr IPv6 DNS IPv4/IPv6 Router g.dns.kr : g.dns.kr Mirror DNS IPv6 FW IPv4/IPv6 : IPv4/IPv6 Router : Reconfig. & Construction range

  28. CONTACT Dr. Sir, Jae-Chul ,Executive Director Tel : +82-2-2186-4552 Fax : +82-2-2186-4495 Email : sir@nida.or.kr National Internet Development Agency of Korea

  29. Background & Need Ⅰ Goals Ⅱ Korea IPv6 Infra. Status Ⅲ International Trend VII KR Main Strategy Ⅴ KR Deployment Status Ⅵ KR Future Service Plan Ⅶ

  30. H, Aberdeen, MD I, Stockholm, Sweden D, College Park, MD C, Herndon,VA M, Tokyo, Japan E, Mt. View, CA A, Dulles,VA K, London, United Kingdom B, Marina Del Rey, CA J, Dulles,VA L, Los Angeles G, Vienna, VA F, Palo Alto, CA International Trend (1/6) Worldwide Root DNS Servers : Total 13

  31. International Trend (2/6) IPv6 Compatibility with Root DNS • IPv4/IPv6 dual-interface on 5 root servers from perspective of IP layer- IPv6 based DNS Query acceptable- so, local server needs to be built up as dual network • IPv6 delegation to name servers under root- IPv6 AAAA delegation to ccTLD level name server (July 20, 2004 UTC)- Technical limit of DNS packet size 512 bytes

  32. International Trend (3/6) IPv6 Address Added to the Internet's Root DNS Zone

  33. ROOT Zone KR. NS a.dns.kr. : KR. NS g.dns.kr. a.dns.kr. A 202.30.50.50: g.dns.kr. A 202.30.190.1g.dns.kr. AAAA 2001:dc5:a::1 : IPv6 Enabled Name Servers B.ROOT-SERVERS.NET F.ROOT-SERVERS.NET H.ROOT-SERVERS.NET M.ROOT-SERVERS.NET International Trend (4/6) 13 Root DNS ccTLD Delegation Services As of March. 2005 Requests for Adding IPv6 Glue Record Domain Name Space g.dns.kr. AAAA 2001:dc5:a::1 ROOT(.) .KR IPv6 delegation to ROOT DNS For the first time in the world (Since July 20, 2004 UTC) Delegation Policy COM ORG KR JP ARPA IPv4/IPv6 IPv6 packet with DNS DNS Query: www.myshop.co.kr AAAA ? GO CO NE OR IPv6 packet with DNS DNS Response: Refer to KR. NS A.DNS.KR. :KR. NS G.DNS.KR. A.DNS.KR. A 202.30.50.50: G.DNS.KR. A 202.31.190.1G.DNS.KR.AAAA 2001:dc5:a::1 MyCompany MyShop IPv6 user

  34. International Trend (5/6) Dual-stack Status of ccTLD Countries

  35. International Trend (6/6) DNS Name System Simplification of ccTLD Countries  Minimizing DNS response message size through consistent domain name - Systemized domain name can be processed in compressed type - This allows DNS response message size that is limited to 512 bytes - This is also very sensitive factor in construction of dual-stack network and IPv6 delegation to root domain name server in the future J P • Upgrade from Jul. of 2003 to Aug. of 2003 • 6 .JP domain names changed : [a-f].dns.jp F R • March. of 2005, .FR domain names changed

  36. Thanks !!

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