Date: Thu, 3 Feb 2011 15:58:57 +0200 From: Jan Melen <jmgm@iki.fi> To: pepe <plaine@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: ipv6 problem Message-ID: <4637C230-03CF-4C70-A033-22C58F57A610@iki.fi> In-Reply-To: <4D4AAE7E.7010300@gmail.com> References: <AANLkTinJg5V0RyOZhU_bC-sqPjBnDUavt_KnuSJXNU86@mail.gmail.com> <20110203112145.W80258@maildrop.int.zabbadoz.net> <4D4A945D.8@gmail.com> <20110203121008.D80258@maildrop.int.zabbadoz.net> <4D4AA0D0.8020703@gmail.com> <20110203131535.I80258@maildrop.int.zabbadoz.net> <4D4AAE7E.7010300@gmail.com>
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Hi,
On Feb 3, 2011, at 3:32 PM, pepe wrote:
> On 3.2.2011 15:22, Bjoern A. Zeeb wrote:
>> On Thu, 3 Feb 2011, pepe wrote:
>>=20
>>>>> IPv6 configs in rc.conf:
>>>>>=20
>>>>> ipv6_enable=3D"YES"
>>>>> ipv6_defaultrouter=3D"2001:14b8:0010:0402::1"
>>>>> ipv6_network_interfaces=3D"rl0"
>>>>> ifconfig_rl0_alias52=3D"inet6 2001:14b8:0010:0402:2::1 prefixlen =
64"
>>>>=20
>>>> That might work; try
>>>>=20
>>>> ipv6_ifconfig_rl0=3D"2001:14b8:0010:0402:2::1 prefixlen 64"
>>>>=20
>>>> instead.
>>>>=20
>>>> Another thing you can do is:
>>>>=20
>>>> ping6 ff02::1%rl0
>>>>=20
>>>> All hosts on the segment should reply with their link local =
address.
>>>>=20
>>>> /bz
>>>>=20
>>>=20
>>> I changed rc.conf to what you suggest, but it didn't help. I seems =
to
>>> be same with either one of those lines.
>>=20
>> It's a freebsd 7 and you didn't have ipv6_enable=3DYES on your last =
boot,
>> right? I am asking because I didn't see a link-local address on your
>> ifconfig
>> output. Do you have one there?
>=20
> Yes ipv6_enable was there...
>=20
>> I guess you do as otherwise the following might not have worked:
>>=20
>>> output of that ping:
>>> backup% ping6 ff02::1%rl0
>>> PING6(56=3D40+8+8 bytes) fe80::208:54ff:fe36:f25b%rl0 --> =
ff02::1%rl0
>>> 16 bytes from fe80::208:54ff:fe36:f25b%rl0, icmp_seq=3D0 hlim=3D64
>>> time=3D0.141 ms
>>> 16 bytes from fe80::240:f4ff:fe76:d441%rl0, icmp_seq=3D0 hlim=3D64
>>> time=3D0.294 ..
>>=20
>> Let's assume that's your box and your other box? You should be able
>> to check that, btw.
>>=20
>> So can you try ping6 ff02::2%rl0 which should make all routers reply
>> and see?
>=20
> That doesn't work. 100% packet loss.
If you haven't figured out already that means that your ISP router is =
not answering to all routers multicast address which could mean that the =
other end has not been configured as a router or that there is no IPv6 =
on the other side (I would guess that it is the latter)? Ask your ISP to =
check their configs and run e.g. tcpdump? If you ping the default =
gateway with tcpdump you should at least see neighbour solicitation =
going out and neighbour advertisement coming in with the default gateway =
address to your machine if the ISP:s interface has the address.
Regards,
Jan
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