Introduction of Tokyo6to4 2009.1.22 JANOG23 Kochi Tokyo6to4 Project Shin Shirahata <shin@tokyo6to4.net> Translation by Akira Kato

Motivation Deployment of co-existence technologies of IPv4 and IPv6 Trial IPv6 environment for IPv4 users Initially focus on 6to4, which has been developed widely Teredo and ISATAP will be considered. Deployment of co-existence technologies of IPv4 and IPv6 Share config/operation techniques Configuration and operational status will be published

What is 6to4? A technique to send IPv6 packets over IPv4 network No explict tunnel configuration required Require a Global Ipv4 address Can not be used through a NAT Maps an IPv4 address to a IPv6 address In a case of 192.0.2.42: 2002:c000:022a: (/48) /80 (*1) ::c000:022a 192 2 42 (*1) Lower 80bit shows an example of Windows XP SP3

Motivation for users To encourage many IPv4 users to try IPv6 with automatic tunnel techniques such as 6to4, Teredo, ISATAP 6to4 is implemented in Windows XP, Vista, and some broadband routers including AirMac Extreme 6to4 is just a trial environment for introduction phase of IPv6 Until global deployment of production quality IPv6 network No 6to4 relay router operational in Japan One operated by KDDI Laboratories (http://www.6to4.jp/) completed operation in Mar 2006

Motivation for Network Operators Introduction of automatic tunneling as a co- exsiting technique of IPv4 and IPv6 We wish many 6to4 relay routers operational We wish native IPv6 network widely deployed Current Project overview A Dell PE1850 w/ Quagga is used for 6to4 relay Disclose information for a reference of IPv6 environment operation Hardware and software configuration Traffic information No privacy information is disclosed

6to4 Relay Router and the IPv4/IPv6 Internet 192.88.99.1 2002::/16 6to4 Relay router IPv4 host 192.0.2.42 6to4 Relay router 2002::/16 192.88.99.1 IPv6 host 2001:db8::1 192.88.99.1 2002::/16 Tokyo6to4 Relay Router 2002:c000:022a::c000:022a 192.88.99.0/24 and 2002::/16 are Anycasted Asymmetric routing results frequently

Issues in usage of 6to4 6to4 Relay Router IPv4 IPv6 6to4 Relay Router If a JP user use 6to4 (unintentionally), the packets are routed via a 6to4 relay router in US or in Europe Larger RTT Lower network performance To identify your 6to4 relay router: IPv4IPv6: traceroute 192.88.99.1 IPv6IPv4: traceroute6 2002:c058:6301::

After Tokyo6to4 Project bootstrapped 6to4 Relay Router IPv4 IPv6 6to4 Relay Router Tokyo6to4 Tokyo6to4 Router results in improvement of Smaller RTT Improved network performance It provides IPv6 connectivity until native IPv6 network is widely deployed.

The Result RTT to www.kame.net via 6to4: About 190ms to less than 10ms

Overview of the Project Tokyo6to4 Project Volunteer based group from younger ISP/iDC engineers and researchers Neutral to all existing institutions Those who contributed: Yuichiro Tahara, Shin Shirahata, Shuichi Okubo, Miyoko Kumaki, Ryoko Nakanishi, Katsuhiro Horiba, and others Advisors: Akira Kato, Osamu Nakamura, Hiroshi Esaki, Yuji Sekiya

The operation A limited operation period planned 2 years? Scalability issues Separation of production IPv6 services Its biz model is difficult to establish 6to4 is a kind of public service Difference to 6to4.jp by KDDI Lab. IPv4 Anycast (192.88.99.0/24)

Preparation Oct 25, 2008 to 26 dawn Nov, 2008 Nov 6, 2008 Dec 2, 2008 Installation of a server in a Keio campus Nov, 2008 Performance test in a iDC Nov 6, 2008 AS number (AS38646) get allocated Dec 2, 2008 Server installed in KDDI Otemachi building

Recent Progress Dec 6, 2008 Jan 20, 2009 Current peering status Advertise 2002::/16 to WIDE Internet Jan 20, 2009 Peering over DIX-IE started Advertise 192.88.99.0/24 to the peers Current peering status Established with 17 ASes (ISP,R&E network) Peering solicited over DIX-IE Especially these ASes which only has oversea 6to4 relay routes

Initial Configuration IPv6 Internet IPv4 Internet Advertise 2002::/16 :Forward packets to ::/0 Advertise 192.88.99.0/24 Peering Partners Tokyo6to4 6to4 relay router Transit (WIDE) DIX-IE Transit (WIDE) Forward packets to 0.0.0.0/0 Peering DIX-IE Transit Donated by WIDE Project

Traffic as of Jan 20, 2009 To Transit: To DIX-IE:

Traffic as of Feb 28, 2009 トランジット回線: To Transit: DIX-IE回線: To DIX-IE:

Write to peering@tokyo6to4.net or contact Okubo or Shirahata Thank You! Peering is welcome! Write to peering@tokyo6to4.net or contact Okubo or Shirahata www.tokyo6to4.net

今後の展開 公開コンテンツの整備 他の自動トンネル技術の展開 好調な場合,多拠点展開も 一般ユーザ用 ネットワーク管理者用 6to4に加え,Teredoでもサービスを提供 好調な場合,多拠点展開も

Special Thanks WIDE Project ピアリングパートナーの皆様 DIX-IEポート提供 IPv4/IPv6トランジット提供 コロケーションスペース提供 ピアリングパートナーの皆様 IPv4ピアリング IPv6ピアリング