Date: Fri, 04 Jul 2003 02:40:36 +0900 From: Hajimu UMEMOTO <ume@mahoroba.org> To: Jan Pechanec <jp@devnull.cz> Cc: freebsd-stable@freebsd.org Subject: Re: ipv6 dialup: "nd6_lookup: failed to lookup" problem (4.8-REL) Message-ID: <ygeadbv7bl7.wl%ume@mahoroba.org> In-Reply-To: <20030703164223.S60686@k3.vol.cz> References: <20030703164223.S60686@k3.vol.cz>
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Hi,
>>>>> On Thu, 3 Jul 2003 17:00:01 +0200 (CEST)
>>>>> Jan Pechanec <jp@devnull.cz> said:
jp> I try to receive an ipv6 address for my PPP link via autoconf
jp> (against Cisco machine), but there is a problem I'm unable to solve so
jp> far. I can see cisco's Router-Advertisement containing prefix etc.,
jp> but no IP adress is assigned to tun0 interface. Anyone succesful in
jp> IPv6 over dial-up PPP connection? When I manually assign IPv6 address,
jp> connection works. My system is 4.8-RELEASE, PPP Version 3.1 - Apr 3
2003.
You cannot assign IPv6 address to tun0 by receiving RA on 4.8-RELEASE.
It is because, ppp(8) assigns link-local address with prefixlen is
/128. But, RA expects that link-local is /64.
jp> axxem.hide:~# ifconfig tun0
jp> tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
jp> inet6 fe80::290:27ff:fe78:9275%tun0 --> fe80::2d0:baff:fef4:e80%tun0 prefixlen 128 scopeid 0x6
jp> inet 1.2.3.4 --> 5.6.7.8 netmask 0xffffffff
jp> Opened by PID 42838
This problem was fixed at 2003/04/29. You can use it by upgrading
your box to recent 4-STABLE. If you don't want upgrading your box,
apply the following patchs to src/usr.sbin/ppp and rebuilting ppp:
http://www.imasy.or.jp/~ume/FreeBSD/ppp-patches-4.8-release.tar.gz
Sincerely,
--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume@mahoroba.org ume@bisd.hitachi.co.jp ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/
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