[16088] in SIPB IPv6

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Re: packages.debian.org unreachable via IPv6

daemon@ATHENA.MIT.EDU (Quentin Smith)
Sun Mar 22 15:53:30 2009

Date: Sun, 22 Mar 2009 15:53:28 -0400 (EDT)
From: Quentin Smith <quentin@MIT.EDU>
To: Daniel Jared Dominguez <danjared@mit.edu>
cc: sipbv6@mit.edu
In-Reply-To: <20090322195151.GN27096@how-about-a-nice-game-of-chess.mit.edu>

Indeed, I am able to reach it right now too. It wasn't working on 
Saturday when I first sent mail. I'll reply to the thread if it stops 
working again.

--Quentin

On Sun, 22 Mar 2009, Daniel Jared Dominguez wrote:

> I am able to reach it right now. Are you still having this problem?
>
> --Jared
>
> On Sun, Mar 22, 2009 at 03:05:14PM -0400, Quentin Smith wrote:
>> I'm unable to reach packages.debian.org (2001:8d8:81:1520::1) from SIPBv6
>> service on 64-NET. The traceroute to the machine dies somewhere on or
>> after occaid in London, but the reverse traceroute (see below) dies after
>> reaching 2001:4830:2446:ee::1, which is assigned to us. It seems like
>> we're probably dropping reply packets that get onto our network; can
>> someone who has bits please investigate this?
>>
>> Thanks,
>> --Quentin
>>
>> On Sun, 22 Mar 2009, Peter Palfrader wrote:
>>
>>> On Sat, 21 Mar 2009, Quentin Smith wrote:
>>>
>>>> I'm unable to reach packages.debian.org on its IPv6 address. The
>>>> traceroute shows that it dies somewhere on the backbone, after getting to
>>>> London:
>>>>
>>>> MACLAP02:~ quentin$ mtr -6rc 10 packages.debian.org
>>>> HOST: MACLAP02.MIT.EDU            Loss%   Snt   Last   Avg  Best  Wrst
>>>> StDev
>>>>  1. darkenergy.ipv6.mit.edu       0.0%    10    0.6   0.6   0.4   0.7
>>>>  0.1
>>>>  2. limekiller.ipv6.mit.edu       0.0%    10    0.9   1.0   0.9   1.2
>>>>  0.1
>>>>  3. bbr01-tu100.bstn01.occaid.ne  0.0%    10    2.0   2.1   1.8   2.4
>>>>  0.2
>>>>  4. bbr01-p1-0.whkn01.occaid.net  0.0%    10    8.9   9.1   8.5   9.5
>>>>  0.3
>>>>  5. bbr01-p2-0.lndn01.occaid.net  0.0%    10   80.2  80.1  79.7  80.5
>>>>  0.2
>>>>  6. ???                          100.0    10    0.0   0.0   0.0   0.0
>>>>  0.0
>>>> MACLAP02:~ quentin$ host -t aaaa packages.debian.org
>>>> packages.debian.org has IPv6 address 2001:8d8:81:1520::1
>>>> MACLAP02:~ quentin$ ifconfig en0 | grep autoconf
>>>> 	inet6 2001:4830:2446:ee:21b:63ff:febb:8c64 prefixlen 64 autoconf
>>>
>>> I can contact powell (the machine that is packages.d.o on ipv6) just
>>> fine from places in europe and north america:
>>>
>>> weasel@intrepid:~$ mtr -r -c 10 packages.debian.org
>>> HOST: intrepid                    Loss%   Snt   Last   Avg  Best  Wrst
>>> StDev
>>> 1. raven.palfrader.org           0.0%    10    0.4   0.4   0.4   0.5   0.0
>>> 2. 2001:858:10f:d::12           10.0%    10   12.4  11.9   8.8  17.6   3.5
>>> 3. 2001:858:745:a0e4::1         10.0%    10   11.0  18.7   9.5  77.0  22.0
>>> 4. te-1-3.bb-c.act.fra.de.onean 10.0%    10   27.0  27.7  25.2  31.9   2.2
>>> 5. te-3-3.bb-c.bs.kae.de.oneand 10.0%    10   28.4  31.4  26.4  44.6   6.5
>>> 6. te-1-1.gw-dista-b.bs.ka.onea 10.0%    10   34.3  32.1  27.3  35.7   3.2
>>> 7. 2001:8d8:0:6::13             10.0%    10   30.2  31.2  27.6  35.7   3.2
>>> 8. powell.debian.org             0.0%    10   31.4  32.8  28.1  48.8   6.1
>>> weasel@intrepid:~$ mtr -r -c 10 packages.debian.org -n
>>> HOST: intrepid                    Loss%   Snt   Last   Avg  Best  Wrst
>>> StDev
>>> 1. 2001:858:10f:20::1            0.0%    10    0.4   0.4   0.4   0.5   0.0
>>> 2. 2001:858:10f:d::12            0.0%    10   11.4  10.7   8.9  13.3   1.6
>>> 3. 2001:858:745:a0e4::1          0.0%    10   10.0  11.6   9.2  16.9   2.4
>>> 4. 2001:7f8::2170:0:2            0.0%    10   25.1  25.8  24.3  29.3   1.6
>>> 5. 2001:8d8:0:2::2a              0.0%    10   26.4  28.9  26.0  35.3   3.2
>>> 6. 2001:8d8:0:4::b               0.0%    10   26.2  31.2  26.2  46.7   6.8
>>> 7. 2001:8d8:0:6::13              0.0%    10   27.9  28.6  27.7  31.0   1.0
>>> 8. 2001:8d8:81:1520::1           0.0%    10   32.0  30.8  27.8  34.2   2.2
>>>
>>>
>>> weasel@schein:~$ mtr -r -c 10 packages.debian.org
>>> HOST: schein                      Loss%   Snt   Last   Avg  Best  Wrst
>>> StDev
>>> 1. exit-ipv6-vlan54.sjc3.isc.or  0.0%    10    5.4   4.9   2.8   8.6   1.6
>>> 2. equinix6-sjc.ip.tiscali.net   0.0%    10    0.8   2.7   0.8  13.6   4.3
>>> 3. so-7-3-0.nyc30.ip6.tiscali.n  0.0%    10   75.2  88.5  75.1 155.5  28.0
>>> 4. ge-1-3-0.nyc33.ip.tiscali.ne  0.0%    10   75.3  75.4  75.3  75.7   0.1
>>> 5. so-1-1-0.lon12.ip6.tiscali.n  0.0%    10  142.8 142.9 142.8 143.0   0.1
>>> 6. so-0-0-0.ams11.ip6.tiscali.n  0.0%    10  148.4 149.8 148.3 162.1   4.3
>>> 7. xe-2-0-0.ams10.ip6.tiscali.n  0.0%    10  148.3 148.3 148.2 149.0   0.2
>>> 8. xe-8-0-0.ams20.ip6.tiscali.n  0.0%    10  154.8 155.8 154.7 164.4   3.0
>>> 9. schlund-gw.ip6.tiscali.net    0.0%    10  158.5 158.5 158.4 158.8   0.1
>>> 10. te-3-3.bb-c.fra1.fra.de.onea  0.0%    10  164.1 164.2 164.0 164.5   0.1
>>> 11. te-1-3.bb-c.bs.kae.de.oneand  0.0%    10  161.2 161.2 161.1 161.4   0.1
>>> 12. te-1-1.gw-dista-b.bs.ka.onea  0.0%    10  161.5 162.5 161.4 170.3   2.8
>>> 13. 2001:8d8:0:6::13             10.0%    10  162.2 162.4 162.2 162.6   0.2
>>> 14. powell.debian.org            10.0%    10  162.9 162.8 162.6 163.0   0.1
>>> weasel@schein:~$ mtr -r -c 10 packages.debian.org -n
>>> HOST: schein                      Loss%   Snt   Last   Avg  Best  Wrst
>>> StDev
>>> 1. 2001:4f8:8:36::1              0.0%    10    3.1   4.7   3.1   8.7   1.6
>>> 2. 2001:504:0:1::3257:1          0.0%    10    0.8   8.7   0.8  43.1  16.6
>>> 3. 2001:668:0:2::1:1472          0.0%    10   75.1  78.1  75.1 103.6   9.0
>>> 4. 2001:668:0:2::1:911           0.0%    10   75.3  76.9  75.3  90.1   4.7
>>> 5. 2001:668:0:2::1:61            0.0%    10  142.8 142.9 142.8 143.2   0.1
>>> 6. 2001:668:0:2::1:181           0.0%    10  148.5 148.6 148.4 149.1   0.2
>>> 7. 2001:668:0:2::1:791           0.0%    10  149.6 148.4 148.2 149.6   0.4
>>> 8. 2001:668:0:2::1:1352          0.0%    10  155.0 154.8 154.8 155.0   0.1
>>> 9. 2001:668:0:3::6000:12         0.0%    10  158.4 158.6 158.4 159.5   0.4
>>> 10. 2001:8d8:0:2::a               0.0%    10  164.1 164.2 164.1 164.5   0.1
>>> 11. 2001:8d8:0:2::1a              0.0%    10  161.2 161.3 161.2 161.7   0.2
>>> 12. 2001:8d8:0:4::b               0.0%    10  162.1 161.7 161.4 162.1   0.3
>>> 13. 2001:8d8:0:6::13             10.0%    10  162.1 162.2 162.1 162.5   0.1
>>> 14. 2001:8d8:81:1520::1          10.0%    10  162.7 162.9 162.7 163.8   0.4
>>>
>>>
>>> The return path from powell to you looks like this:
>>> weasel@powell:~$ mtr -c 10 -r 2001:4830:2446:ee:21b:63ff:febb:8c64
>>> HOST: powell                      Loss%   Snt   Last   Avg  Best  Wrst
>>> StDev
>>> 1. 2001:8d8:80:11::35c           0.0%    10    5.0   2.8   2.4   5.0   0.8
>>> 2. vl-999.gw-dista-a.bs.ka.onea  0.0%    10    2.0  14.8   1.9 129.2  40.2
>>> 3. te-1-2.bb-c.bap.rhr.de.onean  0.0%    10    2.6   2.5   2.3   2.7   0.1
>>> 4. te-1-1.bb-c.the.lon.gb.onean  0.0%    10   17.0  18.5  16.7  32.7   5.0
>>> 5. ibr01-ve26.lndn01.occaid.net  0.0%    10   17.2  17.2  17.1  17.3   0.1
>>> 6. bbr01-p1-0.nwrk01.occaid.net  0.0%    10   88.1  89.0  88.0  96.0   2.5
>>> 7. bbr01-t1-0.bstn01.occaid.net  0.0%    10  100.2  98.1  94.7 120.2   7.9
>>> 8. mit-ic-1137-bos.customer.occ  0.0%    10  109.3  97.3  95.7 109.3   4.2
>>> 9. 2001:4830:2446:ee::1          0.0%    10   96.4  96.5  96.1  96.9   0.2
>>> 10. ???                          100.0    10    0.0   0.0   0.0   0.0   0.0
>>> weasel@powell:~$ mtr -c 10 -r 2001:4830:2446:ee:21b:63ff:febb:8c64 -n
>>> HOST: powell                      Loss%   Snt   Last   Avg  Best  Wrst
>>> StDev
>>> 1. 2001:8d8:80:11::35c           0.0%    10    2.4   2.4   2.4   2.5   0.0
>>> 2. 2001:8d8:0:6::a               0.0%    10    1.9   2.1   1.9   2.6   0.2
>>> 3. 2001:8d8:0:5::3               0.0%    10    2.4   2.5   2.4   2.6   0.1
>>> 4. 2001:8d8:0:2::2               0.0%    10   16.6  16.8  16.6  17.0   0.1
>>> 5. 2001:7f8:4::7577:1            0.0%    10   17.3  17.2  17.1  17.4   0.1
>>> 6. 2001:4830:fe:1010::2          0.0%    10   88.0  88.8  87.9  94.9   2.2
>>> 7. 2001:4830:ff:15c4::2          0.0%    10   95.0  94.9  94.6  95.4   0.2
>>> 8. 2001:4830:e1:8::2             0.0%    10   95.5  96.1  95.5  96.9   0.4
>>> 9. 2001:4830:2446:ee::1          0.0%    10   96.3  96.8  96.3 100.8   1.4
>>> 10. ???                          100.0    10    0.0   0.0   0.0   0.0   0.0
>>>
>>>
>>> So we both can reach occaid.net, powell even gets to Boston on occaid
>>> and we get to 2001:4830:2446:ee::1 which is assigned to MIT.
>>>
>>> I would suspect a networking problem on your side here, maybe the MIT
>>> network folks can help you?
>>>
>>> Peter
>>> --
>>>                          |  .''`.  ** Debian GNU/Linux **
>>>     Peter Palfrader      | : :' :      The  universal
>>> http://www.palfrader.org/ | `. `'      Operating System
>>>                          |   `-    http://www.debian.org/
>>>
>
> -- 
> Daniel Jared Dominguez
> email/jabber: danjared@mit.edu
> pots phone: 617.368.0509
>

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