Date: Mon, 25 Feb 2002 19:30:59 +0900 From: JINMEI Tatuya / =?ISO-2022-JP?B?GyRCP0BMQEMjOkgbKEI=?= <jinmei@isl.rdc.toshiba.co.jp> To: Edwin Groothuis <edwin@mavetju.org> Cc: freebsd-hackers@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: IPv6-over-IPv4 problems since the upgrade to 4.5 Message-ID: <y7vwux1q2e4.wl@condor.jinmei.org> In-Reply-To: <20020223084616.G492@k7.mavetju.org> References: <0D9185CE635BD511ACA50090277A6FCF1359DB@axcs18.cos.agilent.com> <20020216130842.A19081@energyhq.homeip.net> <20020217122510.D491@k7.mavetju.org> <y7v4rk9lobt.wl@condor.jinmei.org> <20020222234829.F492@k7.mavetju.org> <y7vit8pbmg8.wl@condor.jinmei.org> <20020223084616.G492@k7.mavetju.org>
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>>>>> On Sat, 23 Feb 2002 08:46:16 +1100, >>>>> Edwin Groothuis <edwin@mavetju.org> said: >> > And the interface configuration: >> > gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280 >> > tunnel inet 203.173.130.126 --> 206.123.31.114 >> > inet6 fe80::250:8bff:feb9:2d24%gif0 prefixlen 64 scopeid 0x9 >> > inet6 3ffe:b80:2:460::2 --> 3ffe:b80:2:460::1 prefixlen 128 >> >> Hmm, and what command did you type to cause this problem? If possible, >> please give me the network topology as well. > The problem was when "route add -inet6 default -interface gif0" was > used instead of the "route ... <ipaddress>". For the rest the > configuration and the commands were the same. > This is a layout of the 'network': (snip) > The symptons were that if I setup a TCP-session, the original message > is at: > http://www.freebsd.org/cgi/getmsg.cgi?fetch=279914+284924+/usr/local/www/db/text/2002/freebsd-hackers/20020217.freebsd-hackers Okay, I understand the configuration. I did a similar test on a 4.5-RELEASE box, but could not reproduce the problem. The main difference in my test case is I did not use ppp, so I guess ppp is somehow related to this problem... Now I'd like to know: - did you see the same problem in an environment without ppp? - what is the result of netstat -rnal when the kernel is sending neighbor solicitations? - I guess some process (or kernel) modifies the route to the destination. Could you run 'route -n monitor' while the session to see the modification? Thanks, JINMEI, Tatuya Communication Platform Lab. Corporate R&D Center, Toshiba Corp. jinmei@isl.rdc.toshiba.co.jp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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