Traceroute explanation

Meftah Tayeb tayeb.meftah at gmail.com
Wed Dec 7 14:04:31 CST 2011


Using LFT:
root at debian:~# lft 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
 1  172.28.1.1 (172.28.1.1)  0.798 ms  0.711 ms
 2  10.16.0.2 (10.16.0.2)  0.414 ms  0.331 ms
 3  41.200.16.1 (41.200.16.1)  11.400 ms  11.474 ms
 4  172.17.2.25 (172.17.2.25)  10.184 ms  11.322 ms
 5  213.140.58.10 (213.140.58.10)  11.264 ms  10.623 ms
 6  212.73.253.65 (212.73.253.65)  30.330 ms  32.391 ms
 7  ae-4-5.bar1.Marseille1.Level3.net (4.69.151.9)  32.177 ms  32.219 ms
 8  ae-7-7.ebr1.Paris1.Level3.net (4.69.143.238)  42.160 ms  42.318 ms
root at debian:~# lft www.rri.ro
traceroute to www.rri.ro (193.231.72.52), 30 hops max, 60 byte packets
 1  172.28.1.1 (172.28.1.1)  0.819 ms  0.737 ms
 2  10.16.0.2 (10.16.0.2)  0.402 ms  0.335 ms
 3  41.200.16.1 (41.200.16.1)  10.592 ms  10.209 ms
 4  172.17.2.25 (172.17.2.25)  10.146 ms  10.559 ms
 5  213.140.58.10 (213.140.58.10)  11.258 ms  10.369 ms
 6  pos14-0.palermo9.pal.seabone.net (195.22.197.125)  30.817 ms  31.439 ms
 7  ae-5-6.bar2.Marseille1.Level3.net (4.69.151.13)  33.968 ms  31.395 ms
 8  ge-0-0-0.mil19.ip4.tinet.net (213.200.68.145)  57.178 ms 
xe-1-1-0.mil10.ip4.
tinet.net (213.200.68.61)  57.749 ms
 9  ae-1-12.bar1.Budapest1.Level3.net (4.69.141.249)  61.835 ms  62.317 ms
10  euroweb-gw.ip4.tinet.net (77.67.66.154)  61.361 ms  60.292 ms
11  v15-core1.stsisp.ro (193.151.28.1)  163.662 ms  144.245 ms
12  inet-crli1.qrli1.buh.ew.ro (81.24.28.226)  91.309 ms  89.880 ms
13  193.231.72.10 (193.231.72.10)  80.790 ms  79.354 ms
14  ip4-89-238-225-90.euroweb.ro (89.238.225.90)  91.067 ms  90.906 ms
15  webrri.rri.ro.72.231.193.in-addr.arpa (193.231.72.52)  79.196 ms  79.389 
ms
root at debian:~#

----- Original Message ----- 
From: "Raymond Dijkxhoorn" <raymond at prolocation.net>
To: "Meftah Tayeb" <tayeb.meftah at gmail.com>
Cc: "Steven Bellovin" <smb at cs.columbia.edu>; <nanog at nanog.org>
Sent: Thursday, December 08, 2011 11:40 PM
Subject: Re: Traceroute explanation


Hai!

Check with lft or mtr ...

Thanks,
Raymond Dijkxhoorn, Prolocation


Op 7 dec. 2011 om 20:56 heeft "Meftah Tayeb" <tayeb.meftah at gmail.com> het 
volgende geschreven:

> please tel me how to ?
> i don't know astraceroute:)
>
> ----- Original Message ----- From: "Steven Bellovin" <smb at cs.columbia.edu>
> To: "Meftah Tayeb" <tayeb.meftah at gmail.com>
> Cc: "Fred Baker" <fred at cisco.com>; <nanog at nanog.org>
> Sent: Thursday, December 08, 2011 11:33 PM
> Subject: Re: Traceroute explanation
>
>
> On Dec 7, 2011, at 2:51 08PM, Meftah Tayeb wrote:
>
>> big thank for that
>> but, i am testing that for one day :)
>
>
>
> Can you do an AStraceroute or manually translate those addresses into 
> AS#s?
> That is, might level3 and tinet  be using multiple AS#s, in which case 
> this
> isn't unreasonable?
>
>
>
>
>
>>
>>
>> ----- Original Message ----- From: "Fred Baker" <fred at cisco.com>
>> To: "Meftah Tayeb" <tayeb.meftah at gmail.com>
>> Cc: <nanog at nanog.org>
>> Sent: Thursday, December 08, 2011 11:23 PM
>> Subject: Re: Traceroute explanation
>>
>>
>> This is just a guess, but I'll bet the route changed while you were 
>> measuring it.
>>
>> Traceroute sends a request, awaits a response, sends a request, ... 
>> Suppose that the route was
>>
>> 172.28.0.1 -> 10.16.0.2
>>         -> 41.200.16.1
>>         -> 172.17.2.25
>>         -> 213.140.58.10
>>         -> 195.22.195.125
>>         -> 4.69.151.13
>>         -> 213.200.68.61
>>         -> somewhere else
>>
>> and after the test got that far, two systems got inserted into the path 
>> before level3, resulting in the route entering level3 at a different 
>> point, 4.69.141.249. What you now have is
>>
>> 172.28.0.1 -> 10.16.0.2
>>         -> 41.200.16.1
>>         -> 172.17.2.25
>>         -> 213.140.58.10
>>         -> 195.22.195.125
>>         -> unknown
>>         -> unknown
>>         -> 4.69.141.249
>>         -> 77.67.66.154
>>         -> and so on
>>
>> The effect would be to get a result like this.
>>
>> Next time you see something like this, suggestion: repeat the traceroute 
>> and see what you get.
>>
>>
>> On Dec 7, 2011, at 12:12 PM, Meftah Tayeb wrote:
>>
>>> Hey folks,
>>> i see a strange traceroute there
>>>
>>> Détermination de l'itinéraire vers www.rri.ro [193.231.72.52]
>>> avec un maximum de 30 sauts :
>>>
>>> 1     2 ms     1 ms     1 ms  172.28.0.1
>>> 2     1 ms     1 ms     1 ms  localhost [10.16.0.2]
>>> 3    10 ms    10 ms    13 ms  41.200.16.1
>>> 4    11 ms    10 ms    11 ms  172.17.2.25
>>> 5    21 ms    21 ms    21 ms  213.140.58.10
>>> 6    34 ms    31 ms    55 ms  pos14-0.palermo9.pal.seabone.net 
>>> [195.22.197.125
>>> ]
>>> 7    34 ms    33 ms    35 ms  ae-5-6.bar2.marseille1.level3.net 
>>> [4.69.151.13]
>>> 8   106 ms    68 ms    67 ms  xe-1-1-0.mil10.ip4.tinet.net 
>>> [213.200.68.61]
>>> 9    74 ms    73 ms    74 ms  ae-1-12.bar1.budapest1.level3.net 
>>> [4.69.141.249]
>>> 10    63 ms    63 ms    79 ms  euroweb-gw.ip4.tinet.net [77.67.66.154]
>>> 11    85 ms    84 ms    84 ms  v15-core1.stsisp.ro [193.151.28.1]
>>> 12   100 ms   100 ms   102 ms  inet-crli1.qrli1.buh.ew.ro [81.24.28.226]
>>> 13    81 ms    81 ms    81 ms  193.231.72.10
>>> 14    92 ms    92 ms    93 ms  ip4-89-238-225-90.euroweb.ro 
>>> [89.238.225.90]
>>> 15    89 ms    89 ms    89 ms  webrri.rri.ro.72.231.193.in-addr.arpa 
>>> [193.231.7
>>> 2.52]
>>> Itinéraire déterminé.
>>> C:\Documents and Settings\TAYEB>
>>> Seabone, then level3, then Tinet, then level3, then tinet ?
>>> if is that a routing stufs that i don't know, please let me know :)
>>> i never saw that befaure
>>>
>>>  Meftah Tayeb
>>> IT Consulting
>>> http://www.tmvoip.com/
>>> phone: +21321656139
>>> Mobile: +213660347746
>>>
>>>
>>> __________ Information from ESET NOD32 Antivirus, version of virus 
>>> signature database 6695 (20111208) __________
>>>
>>> The message was checked by ESET NOD32 Antivirus.
>>>
>>> http://www.eset.com
>>>
>>
>>
>>
>> __________ Information from ESET NOD32 Antivirus, version of virus 
>> signature database 6695 (20111208) __________
>>
>> The message was checked by ESET NOD32 Antivirus.
>>
>> http://www.eset.com
>>
>>
>>
>>
>> __________ Information from ESET NOD32 Antivirus, version of virus 
>> signature database 6695 (20111208) __________
>>
>> The message was checked by ESET NOD32 Antivirus.
>>
>> http://www.eset.com
>>
>>
>>
>>
>>
>
>
> --Steve Bellovin, https://www.cs.columbia.edu/~smb
>
>
>
>
>
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus 
> signature database 6695 (20111208) __________
>
> The message was checked by ESET NOD32 Antivirus.
>
> http://www.eset.com
>
>
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus 
> signature database 6695 (20111208) __________
>
> The message was checked by ESET NOD32 Antivirus.
>
> http://www.eset.com
>
>
>


__________ Information from ESET NOD32 Antivirus, version of virus signature 
database 6695 (20111208) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com




__________ Information from ESET NOD32 Antivirus, version of virus signature database 6695 (20111208) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com






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