From owner-freebsd-isp Wed Jan 19 4:20:21 2000 Delivered-To: freebsd-isp@freebsd.org Received: from fgwmail5.fujitsu.co.jp (fgwmail5.fujitsu.co.jp [192.51.44.35]) by hub.freebsd.org (Postfix) with ESMTP id C460A1527C for ; Wed, 19 Jan 2000 04:20:13 -0800 (PST) (envelope-from shin@nd.net.fujitsu.co.jp) Received: from m3.gw.fujitsu.co.jp by fgwmail5.fujitsu.co.jp (8.9.3/3.7W-MX9912-Fujitsu Gateway) id VAA08531 for ; Wed, 19 Jan 2000 21:20:08 +0900 (JST) (envelope-from shin@nd.net.fujitsu.co.jp) Received: from chisato.nd.net.fujitsu.co.jp by m3.gw.fujitsu.co.jp (8.9.3/3.7W-9912-Fujitsu Domain Master) id VAA04395; Wed, 19 Jan 2000 21:20:08 +0900 (JST) Received: from localhost ([10.36.204.250]) by chisato.nd.net.fujitsu.co.jp (8.8.5+2.7Wbeta5/3.3W8chisato-970826) with ESMTP id VAA09031 for ; Wed, 19 Jan 2000 21:20:07 +0900 (JST) To: freebsd-isp@freebsd.org Subject: filtering of IPv6 over IPv4? X-Mailer: Mew version 1.94 on Emacs 20.4 / Mule 4.0 (HANANOEN) X-Prom-Mew: Prom-Mew 1.93.4 (procmail reader for Mew) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <20000119212045D.shin@nd.net.fujitsu.co.jp> Date: Wed, 19 Jan 2000 21:20:45 +0900 From: Yoshinobu Inoue X-Dispatcher: imput version 990905(IM130) Lines: 36 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello, I am Yoshinobu Inoue, a committer of freebsd project. And I am a member of Japanese KAME project which is implementing IPv6 and IPsec functionalities over BSD derived platforms. I am not sure if the issue now I am going to raise is appropriate for this list. If I am wrong, sorry for it, and if there are other better places, I'll appreciate if anyone let me know it. Now I am putting IPv6 and IPsec functionalities into freebsd-current. Already many of merging have done, and several functionalities are available. And several people are beginning to try to use it. But some of them have a problem using IPv6 via their ISPs. When someone begins to use IPv6, IPv6 over IPv4 tunneling is essential for the 1st stage. (e.g. protocol number 41 in IPv4) Because many ISPs are not yet providing native IPv6 service. But I am receiving several reports that some people failed to establish IPv6 over IPv4 connection via their ISP, and after several checking, it is found out that their ISP seems to be filtering those kind of packets. It is a shame to discourage people who are beginning to use IPv6, so I really wish for many ISPs not to filter IPv6 over IPv4 packets. Some of their customers are beginning to wish to use those kind of packets(again, ip protocol 41), and I believe the number will increase. Yoshinobu Inoue To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message