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RE: 2001:590::/32 announced by both AS4436 (nLayer) and AS4474 (Global Village, no contact in whois, but seems to be nLayer...)

  • From: Jeroen Massar
  • Date: Tue Mar 16 14:40:21 2004

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Richard A Steenbergen [mailto:ras@e-gerbil.net] wrote:

> On Tue, Mar 16, 2004 at 06:12:22PM +0100, Jeroen Massar wrote:
> > 
> > 2001:590::/32 _is_ being announced by both AS4436 *and* AS4474.
> > Trying to contact these ASN's to inquire why that is happening
> > and maybe finding out if it was an erronous configuration I
> > tried to find the contacts which lead to AS4474 not having any
> > contact information available per ARIN registry.
> > Thus who do you call then when AS4436 doesn't seem home?
> > Indeed: ARIN, which also didn't seem home thus: NANOG.
> 
> Next time you want to contact a noc, you might want to try 
> not doing it as a cc: to an e-mail encouraging random peers
> to depeer someone because of
> an inconsistant origin AS caused by the use of local-as. 

I wonder why many people are acting so hard about that small
mention of it, apparently that did take enough attention while
the subject at hand didn't get taken a look at at all.
For your pleasure below is the complete detailed message I sent to them.
If you still think that I am a 'kook' or other odd insults
then please keep them to yourself. I thought NANOG was for
Network Operators and not for flame wars and tidbits.

> Actions like that
> (and these for that matter) tend to get one branded a net kook... And
> feedings the kooks is never productive. :)

Thank you very much for yet another insult, at least you are
polite enough to do it on a public mailinglist instead of
trying to mailbomb me. I still wonder why that is happening
as I was and still am trying to be friendly and hoping to
figure out why it is happening. FYI there are only 2 prefixes
that have this currently in the entire routing table but alas.

Greets,
 Jeroen

- ----

From: Jeroen Massar <jeroen@unfix.org>
To: <noc@nlayer.net>, <admin@pwd.ad.jp>
Subject: 2001:590::/32 announced by both AS4436 (nLayer) and AS4474 (Global Village, no contact in whois)

Hi,

We are currently seeing 2001:590::/32 announced by both AS4436 (nLayer)
and AS4474 (Global Village Communication)

As 2001:590::/32 is assigned to nLayer I assume that AS4474 is in error.
AS4474 information is apparently invalid according to ARIN whois, thus
emailing their 'upstream' AS4716/Powerdcom (admin@pwd.ad.jp).

>From grh.sixxs.net, see http://www.sixxs.net/tools/grh/
or directly: http://www.sixxs.net/tools/grh/lg/?find=2001:590::/32,
see formatted output below.

It might be interresting for you to setup a peering with GRH
so these bugs are better traceable and we can easily see
that they are or are not originating from your systems.

Greets,
 Jeroen

Originated from AS4436:
2001:590::/32 > 2001:668:0:1:34:49:6900:40                              1980 3257 4436

2001:590::/32   2001:468:ff:121d::2                    11537 7660 2500  2497 3257 4436 
2001:590::/32   2001:610:25:5062::62              1103 11537 7660 2500  2497 3257 4436
2001:590::/32   2001:688:0:1::1                             5511  2500  2497 3257 4436
2001:590::/32   2001:690::10               1930 20965 11537 7660  2500  2497 3257 4436
2001:590::/32   2001:770:8::               1213 20965 11537 7660  2500  2497 3257 4436
2001:590::/32   2001:1418:1:400::1                         12779  6175  2497 3257 4436
2001:590::/32   2001:14e0::f                          12931 8472  6830  4589 3257 4436
2001:590::/32   2001:6f8:800::24                                        4589 3257 4436
2001:590::/32   2001:7f8:1::a500:6830:1                           6830  4589 3257 4436
2001:590::/32   2001:890:600:4f0::11                         8447 6830  4589 3257 4436
2001:590::/32   2001:608:0:fff::6                                       5539 3257 4436
2001:590::/32   2001:470:1fff:3::3                                      6939 3257 4436
2001:590::/32   3ffe:c00:0:1::1                                    109  6939 3257 4436
2001:590::/32   2001:610:ff:c::2           1888  1103  3425  293   109  6939 3257 4436
2001:590::/32   2001:728:0:1000::f000                        227  2914  6939 3257 4436
2001:590::/32   2001:ad0:fe:0:205:32ff:fe03:c650                  3327  6939 3257 4436
2001:590::/32   3ffe:8150::1                                9044  5424  6939 3257 4436
2001:590::/32   3ffe:1d00::3                                      5623  6939 3257 4436
2001:590::/32   2001:1888::                                       6435  6939 3257 4436
2001:590::/32   3ffe:401c:0:3:20c:ceff:fe05:da0e           29657 10566  6939 3257 4436
2001:590::/32   2001:15a8:1:1::6                                 29449  6939 3257 4436
2001:590::/32   3ffe:401d:f00::1                                 30071  6939 3257 4436
2001:590::/32   3ffe:401d:f00::5                                 30071  6939 3257 4436
2001:590::/32   3ffe:401d:f00::9                                 30071  6939 3257 4436
2001:590::/32   2001:8e0:0:ffff::4                                      8758 3257 4436
2001:590::/32   2001:780:0:2::6                                        12337 3257 4436
2001:590::/32   2001:14d0:a002::1                                      15516 3257 4436

Originated from AS4474:
2001:590::/32   2001:6e0::2                                 8954    33  6939 4716 4474
2001:590::/32   3ffe:4017::1                         24776 25358  3549  6939 4716 4474
2001:590::/32   2001:9c0:1:1::2:4              12902 15703  3265  3549  6939 4716 4474
2001:590::/32   2001:b18:0:5::5                25137 12859  3265  3549  6939 4716 4474
2001:590::/32   2001:960::290:6900:161:f000          12634  3265  3549  6939 4716 4474
2001:590::/32   2001:7b8::290:6900:1cc6:d800         12859  3265  3549  6939 4716 4474
2001:590::/32   2001:838:0:10::1                     12871  3265  3549  6939 4716 4474
2001:590::/32   2001:888:2::1                               3265  3549  6939 4716 4474
2001:590::/32   2001:7c8:2::4                               2110  3549  6939 4716 4474
2001:590::/32   2001:940:0:ffff::d                   12853  1752  4725  6939 4716 4474
2001:590::/32   2001:15f8:1::1                       25384  1752  4725  6939 4716 4474

Notice that AS6939 peering with GRH gives AS4436 as the source but is in the path
also for the AS4474 origin, this could be because they have both US and EU routers.

Here is also a traceroute to the destination from AS8954 (Intouch) to AS4474:
traceroute to 2001:590::1 (2001:590::1) from 3ffe:8114:2000:240:290:27ff:fe24:bbab, 30 hops max, 16 byte packets
 1  purgatory.unfix.org (3ffe:8114:2000:240:290:27ff:fe24:c19f)  2.39 ms  12.517 ms  1.38 ms
 2  gw-20.ams-02.nl.sixxs.net (3ffe:8114:1000::26)  28.871 ms  27.279 ms  44.073 ms
 3  Amsterdam.core.ipv6.intouch.net (2001:6e0::2)  31.83 ms  36.727 ms  18.936 ms
 4  3ffe:1200:1002:1::51 (3ffe:1200:1002:1::51)  173.78 ms  190.191 ms  173.511 ms
 5  paix.ipv6.he.net (3ffe:80a::10)  174.883 ms  174.042 ms  186.332 ms
 6  paix6.ttnet.ad.jp (3ffe:80a::e)  181.959 ms  176.632 ms  176.864 ms
 7  2001:2a0:0:bb0a::1 (2001:2a0:0:bb0a::1)  279.512 ms  280.193 ms  285.993 ms
 8  2001:2a0:0:bb0c::2 (2001:2a0:0:bb0c::2)  408.796 ms  405.757 ms  405.874 ms
 9  * * *


And from AS1213 (HeaNet) to AS4436:

traceroute to 2001:590::1 (2001:590::1) from 2001:770:18:8::2, 30 hops max, 16 byte packets
 1  hyperion-gige5-3-8.bh.core.hea.net (2001:770:18:8::1)  0.873 ms  0.736 ms  0.542 ms
 2  deimos-gige5-1.cwt.core.hea.net (2001:770:8:c::2)  0.928 ms  0.86 ms  0.765 ms
 3  heanet.ie1.ie.geant.net (2001:798:2019:10aa::1)  0.837 ms  0.817 ms  0.8 ms
 4  ie.uk1.uk.geant.net (2001:798:20cc:1901:2801::2)  13.237 ms  13.28 ms  13.235 ms
 5  uk.ny1.ny.geant.net (2001:798:20cc:1c01:2801::1)  81.852 ms  81.826 ms  81.848 ms
 6  nycmng-esnet.abilene.ucaid.edu (2001:468:ff:15c3::1)  74.454 ms  78.638 ms  81.427 ms
 7  chinng-nycmng.abilene.ucaid.edu (2001:468:ff:f15::1)  94.72 ms  94.64 ms  94.614 ms
 8  iplsng-chinng.abilene.ucaid.edu (2001:468:ff:f12::2)  98.38 ms  102.578 ms  113.563 ms
 9  kscyng-iplsng.abilene.ucaid.edu (2001:468:ff:1213::2)  107.457 ms  107.996 ms  111.024 ms
10  2001:468:ff:1013::1 (2001:468:ff:1013::1)  118.161 ms  122.19 ms  118.105 ms
11  2001:468:ff:1017::2 (2001:468:ff:1017::2)  142.887 ms  148.528 ms  142.843 ms
12  losang-snvang.abilene.ucaid.edu (2001:468:ff:1417::1)  150.364 ms  150.327 ms  150.359 ms
13  tpr2-transpac-la.jp.apan.net (3ffe:8140:101:1::2)  254.144 ms  254.096 ms  254.056 ms
14  hitachi1.otemachi.wide.ad.jp (2001:200:0:1800::9c4:2)  263.754 ms  263.808 ms  263.758 ms
15  pc6.otemachi.wide.ad.jp (2001:200:0:1802:2d0:b7ff:fe88:eb8a)  263.678 ms  263.705 ms  263.665 ms
16  otm6-gate1.iij.net (2001:200:0:1800::2497:1)  276.146 ms  275.19 ms  276.834 ms
17  otm6-bb0.IIJ.Net (2001:240:100:2::1)  279.463 ms  271.187 ms  275.257 ms
18  2001:504:1::a500:2497:1 (2001:504:1::a500:2497:1)  299.258 ms  271.32 ms  267.224 ms
19  ge-1-0-0.nyc10.ip6.tiscali.net (2001:504:1::a500:3257:1)  267.147 ms  270.6 ms  279.11 ms
20  so-3-0-0.nyc30.ip6.tiscali.net (2001:668:0:2::330)  285.232 ms  277.372 ms  269.647 ms
21  so-1-0-0.nyc31.ip6.tiscali.net (2001:668:0:2::1a1)  275.709 ms  267.147 ms  267.018 ms
22  so-3-0-0.ncy31.ip6.tiscali.net (2001:668:0:2::391)  290.776 ms  287.951 ms  287.956 ms
23  so-1-0-0.sjc10.ip6.tiscali.net (2001:668:0:2::1f1)  349.279 ms  352.954 ms  345.427 ms
24  * * *

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