From owner-freebsd-stable  Fri Feb 22  3:31:51 2002
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Date: Fri, 22 Feb 2002 20:31:37 +0900
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From: JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?= <jinmei@isl.rdc.toshiba.co.jp>
To: Nick Sayer <nsayer@quack.kfu.com>
Cc: freebsd-net@FreeBSD.ORG, stable@FreeBSD.ORG
Subject: Re: TCPv6 lags in 4.5-RELEASE?
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References: <3C661D4E.9040908@quack.kfu.com>
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>>>>> On Sat, 09 Feb 2002 23:12:14 -0800, 
>>>>> Nick Sayer <nsayer@quack.kfu.com> said:

> I don't know if I can quantify the issue very well, but since moving 
> from 4.4-RELEASE to 4.5-RELEASE on my laptop, I've noticed that 
> TCP-over-IPv6 sessions get stuck rather easily. They end up in a state 
> where no further I/O will take place. TCP-over-IPv4 does not have this 
> problem.

> This machine is using IPSEC over 802.11b (wi0 - a lucent gold card), and 
> a (gif0) tunnel for IPv6-over-v4 (without any IPSEC since it's tunneling 
> over v4 which is IPSECed anyway).

If possible, please give us more details.

For example, I'm wondering:

Does the situation change if you do not use IPSEC?  Does the situation
change if you establish a TCP connection without IPv6-over-IPv4 tunnels?

Thanks,

					JINMEI, Tatuya
					Communication Platform Lab.
					Corporate R&D Center, Toshiba Corp.
					jinmei@isl.rdc.toshiba.co.jp

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