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FreeBSDでIPv6しよう


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Jun-ichiro "itojun" Itoh
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KAME project/WIDE project
IIJ Research Laboratory

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itojun@{itojun.org,kame.net,iijlab.net}
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最近のIPv6状況

	今日もIPv6デモがたくさんある(見ましたか?)

	IPv6スタックはたくさん手に入る
		FreeBSD: KAME*/INRIA
		BSDI BSD/OS: KAME/NRL
		NetBSD: INRIA*/KAME/NRL?
		OpenBSD: ???
		市販のルータ: 数社あり

	徐々に遊べる状況になってきました。
		どれでどう遊べばいいの? - KAMEを例に
		今後どうなるの?

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各スタックの比較

	KAME (WIDE Hydrangea):
		port充実: mozilla6 apache6 ssh6...
		ipsec/無敵のlaptopサポート(PAO/wildboar)
		2.2.6-RELEASE用キットはmake world不要、らくちん
		日本語でも質問できる(笑)
	INRIA:
		NFS6とかもある
		make world必要
	NRL:
		ipsec結構強い(輸出規制...)
		mbufのいじりかたが特有
		make world必要

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KAMEプロジェクト

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"Revamp sys/net*"

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	自由に配布できるIPv6/IPsecスタックをつくろう
		BSDコピーライト - みんな安心
	自由に配布できるIPsecスタックをつくろう
		日本は暗号規制が比較的緩い
	先進的研究のためのreference codeをつくろう
		キューイング/ATM/モバイル/楽しそうなもの全部

	"KAME"は"WIDE Hydrangea"の発展

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KAME状況 - 実装

	IPv6: stable for more than years
	IPsec: transport ready, tunnel being worked
	IKE: preliminary version ready, being worked
	ATM leased line: okay for v4/v6
	v4-v6 translator: ready
	ALTQ: trying to merge in
	mobile ip: planned
	laptop: PAO/wildboar ready
	more to come

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KAME状況 - IPv6だけで暮らそう

	SMTP over IPv6: ready and working well
	POP over IPv6: ready
	apache6: ready, works as proxy too
	nameserver/resolver: ongoing
	Practical v6 net:
		multihoming: ready and working
		autoconfig: working well for a long time
		filter6: planned
		NAT6: we are trying to avoid this
	mozilla6: ready
	what others?
		X11 over IPv6, install floppy...

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インストール - KAME for 2.2.6

	正味だいたい30分
		kitを持って来る
		/usr/includeにパッチ
		/usr/src/sysにパッチ
		userlandをmake; make install
		kernelをmake、いれかえてリブート

	KAMEのadvantage
		既存のツールは壊しません(/usr/local/v6/*)
		IPv4だけでも楽しい(ipsec)
		IPv4 only hostとバイナリ互換
		laptop support

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IPv6実装と問題点

	*BSDはそれぞれネットワークコードを改造している

	IPv4はもとは一緒(Net/2)なのでまあ似ている
	IPv6ではもとから違う!!
		KAME INRIA NRL UNH...
		似ても似つかぬコードたち

	マージしても結局コードがバラバラになる...

	→ KAMEはreference codeを目指してます

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各BSDのIPv6的状況(マージ)

	BSDI BSD/OS: 4.0betaでNRLを仮マージ
	NetBSD: INRIAをマージ予定か?
	OpenBSD: ???
	FreeBSD: KAME派 vs INRIA派 @ net@freebsd

	KAMEを応援してください。
		バグレポ
		v6アプリケーションのport
		などなど

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もっと遊びたいひとのために

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KAME: http://www.kame.net/
INRIA: ftp://ftp.inria.fr/network/ipv6/
NRL: ftp://utopia.hacktic.nl/pub/replay/pub/crypto/IPv6/

日本のIPv6状況: http://www.v6.wide.ad.jp/
世界のIPv6実験ネット: http://www.6bone.net/
IPv6そのもの: http://playground.sun.com/ipng/

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KAME: 動作プラットフォーム

	主に: FreeBSD 2.2.6-RELEASE
		毎日つかってバグ探し
		"ports"でIPv6アプリケーションの提供
	サポート: BSDI 3.0とNetBSD 1.3

	FreeBSD 3.0-currentに移植中