ipv6 problem

[pepe]

On 3.2.2011 17:53, Thomas Sandford wrote:
> On 01/02/2011 07:29, pepe wrote:
>> I have 2001:14b8:10:402::/64 ipv6 from my isp and I cant get it working.
>> Ifconfig should be ok:
>> backup# ifconfig rl0 inet6
>>
>> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> options=8<VLAN_MTU>
>> inet6 2001:14b8:10:402:2::1 prefixlen 64
>
> Looks a bit odd - I would expect to see a link-local address too - eg
>
> %ifconfig bge0 inet6
> bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>
> options=8009b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LINKSTATE>
> inet6 fe80::20b:cdff:fef2:9a57%bge0 prefixlen 64 scopeid 0x1
> inet6 2001:8b0:cae3:1:20b:cdff:fef2:9a57 prefixlen 64 autoconf
>
>> default gateway is set to 2001:14b8:10:402:1::1.
>
> That sounds a slightly odd comment, since in general IPv6 routing is
> done with auto-discovery. Especially given the fact that the default
> route quoted lies within the same subnet (2001:14b8:10:402:: prefixlen
> 64) as the host in question.
>
> When I try to traceroute
>> irc server for example
>> I get this:
>>
>> traceroute6: Warning: irc.cc.tut.fi has multiple addresses; using
>> 2001:708:310:4952:4320:5365:7276:6572
>
> I get this message too - because the host irc.cc.tut.fi DOES have
> multiple addresses:
>
> %dig irc.cc.tut.fi aaaa
>
> ; <<>> DiG 9.6.2-P2 <<>> irc.cc.tut.fi aaaa
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24710
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 3, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;irc.cc.tut.fi. IN AAAA
>
> ;; ANSWER SECTION:
> irc.cc.tut.fi. 3134 IN AAAA 2001:708:310:4952:4320:5365:7276:6572
> irc.cc.tut.fi. 3134 IN AAAA 2001:708:310:4952:4320:436c:6965:6e74
>
> ;; AUTHORITY SECTION:
> cc.tut.fi. 172334 IN NS ns-secondary.funet.fi.
> cc.tut.fi. 172334 IN NS kaustinen.cc.tut.fi.
> cc.tut.fi. 172334 IN NS ressu.cc.tut.fi.
>
> ;; Query time: 0 msec
> ;; SERVER: 81.187.228.6#53(81.187.228.6)
> ;; WHEN: Thu Feb 3 15:34:06 2011
> ;; MSG SIZE rcvd: 164
>
>
>> traceroute6 to irc.cc.tut.fi (2001:708:310:4952:4320:5365:7276:6572) from
>> 2001:14b8:10:402:2::1, 64 hops max, 12 byte packets
>> 1 2001:14b8:10:402:2::1 2026.908 ms !A 2999.587 ms !A 3000.423 ms !A
>
>  From the traceroute6 manpage
> !A Destination Unreachable - Address Unreachable.
>
> It also appears that your first hop address is the same as your source
> address, which does suggest that routing is more than a little bit screwy.
>
> On my system I get:
>
> %traceroute6 -n irc.cc.tut.fi
> traceroute6: Warning: irc.cc.tut.fi has multiple addresses; using
> 2001:708:310:4952:4320:436c:6965:6e74
> traceroute6 to irc.cc.tut.fi (2001:708:310:4952:4320:436c:6965:6e74)
> from 2001:8b0:cae3:1:20b:cdff:fef2:9a57, 64 hops max, 12 byte packets
> 1 2001:8b0:cae3:1:21a:a2ff:fe34:e50b 1.349 ms 0.969 ms 1.011 ms
> 2 2001:8b0:0:53:203:97ff:fe05:8000 129.118 ms 143.449 ms 119.622 ms
> 3 2001:7f8:4::50e8:1 132.075 ms 119.009 ms 117.983 ms
> 4 2001:7f8:4::1b1b:1 123.832 ms 114.424 ms 119.675 ms
> 5 2001:7f8:4::a2b:1 114.905 ms 119.009 ms 118.030 ms
> 6 2001:948:1:8::3 134.205 ms 143.579 ms 130.875 ms
> 7 2001:948:1:2::3 145.068 ms 145.049 ms 156.321 ms
> 8 2001:948:3:2::3 165.258 ms 171.228 ms 156.591 ms
> 9 2001:708:0:f000:0:60:3060:2 233.114 ms 163.319 ms 158.668 ms
> 10 2001:708:310::2 67.252 ms 58.513 ms 59.656 ms
> 11 2001:708:310:4952:4320:436c:6965:6e74 58.906 ms 58.310 ms 58.045 ms
>
> (I ran it with -n as I think in this case the raw IPv6 addresses are
> more informative than the rDNS lookups).
>
>> So. Could this be problem in my configs or is this because of something
>> wrong at the isp side?
>
> It does look as though there is something a little odd with your
> configs. It's difficult to be more specific because you've given very
> little information.
>
> If things at the router (whether yours or at the isp) are set up
> correctly then the single line in /etc/rc.conf
>
> ipv6_enable="YES"
>
> should be sufficient to autoconfigure BOTH ipv6 address and routing
> using Router Discovery. This is all that I had to do on the machine I
> generated the above config dumps & traces from.
>
> In my case my ISP (AAISP in the UK) have allocated me a /48 2001:8b0:cae3::
>
> Traffic comes to me over a 6to4 tunnel from the ISP terminated on a
> Cisco router (though I tested it on a FreeBSD host before I got the 6to4
> tunnel set up on the router). The LAN side interface of the router has
> Router Advertisements enabled which means that the above rc.conf line is
> all that is required for everything to "just work".
>

This one got solved at freebsd-net already with more information about 
my configs and system... It is problem at isp side instead of my configs...