Tokyo6to4 Project Just forward it. Introduction of Tokyo6to4 2009.1.22 JANOG23 Kochi Tokyo6to4 Project Shin Shirahata Translation by Akira Kato.

Tokyo6to4 ProjectJust forward it.

Introduction of Tokyo6to4

2009.1.22JANOG23 KochiTokyo6to4 Project

Shin Shirahata <[email protected]>Translation by Akira Kato


Motivation

• 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)

::c000:022a192 0 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


IPv6Internet

IPv4Internet

6to4 Relay Router and theIPv4/IPv6 Internet

192.88.99.1

192.88.99.1

192.88.99.1

2002::/16

2002::/16

2002::/16

6to4 Relay router

Tokyo6to4Relay Router

6to4 Relay router

IPv6 host2001:db8::1

IPv4 host 192.0.2.42

2002:c000:022a::c000:022a

192.88.99.0/24 and 2002::/16 are AnycastedAsymmetric routing results frequently


Issues in usage of 6to4

IPv4

IPv6 6to4 Relay Router

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


After Tokyo6to4 Project bootstrapped

IPv4

IPv6 6to4 Relay Router

Tokyo6to4 Router results in improvement of• Smaller RTT• Improved network performance

It provides IPv6 connectivity until native IPv6 network is widely deployed.

6to4 Relay Router

Tokyo6to4


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

– 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

– 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

• Peering– DIX-IE

• Transit– Donated by WIDE Project

IPv6 InternetIPv4 Internet

Advertise 192.88.99.0/24Advertise 2002::/16:Forward packets to ::/0

Tokyo6to46to4 relay routerDIX-IE Transit

(WIDE)Transit(WIDE)

Peering Partners

Forward packets to 0.0.0.0/0


Traffic as of Jan 20, 2009To Transit:

To DIX-IE:


Traffic as of Feb 28, 2009トランジット回線 :

DIX-IE回線 :

To Transit:

To DIX-IE:


Thank You!

Peering is welcome!Write to [email protected]

or contact Okubo or Shirahata

www.tokyo6to4.net


今後の展開• 公開コンテンツの整備

–一般ユーザ用–ネットワーク管理者用

• 他の自動トンネル技術の展開– 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

– 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

Tokyo6to4 Project Just forward it. Introduction of Tokyo6to4 2009.1.22 JANOG23 Kochi Tokyo6to4 Project Shin Shirahata Translation by Akira Kato.

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