Using LFT: root@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@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@debian:~# ----- Original Message ----- From: "Raymond Dijkxhoorn" <raymond@prolocation.net> To: "Meftah Tayeb" <tayeb.meftah@gmail.com> Cc: "Steven Bellovin" <smb@cs.columbia.edu>; <nanog@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@gmail.com> het volgende geschreven:
please tel me how to ? i don't know astraceroute:)
----- Original Message ----- From: "Steven Bellovin" <smb@cs.columbia.edu> To: "Meftah Tayeb" <tayeb.meftah@gmail.com> Cc: "Fred Baker" <fred@cisco.com>; <nanog@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@cisco.com> To: "Meftah Tayeb" <tayeb.meftah@gmail.com> Cc: <nanog@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.
__________ Information from ESET NOD32 Antivirus, version of virus signature database 6695 (20111208) __________
The message was checked by ESET NOD32 Antivirus.
__________ Information from ESET NOD32 Antivirus, version of virus signature database 6695 (20111208) __________
The message was checked by ESET NOD32 Antivirus.
--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.
__________ Information from ESET NOD32 Antivirus, version of virus signature database 6695 (20111208) __________
The message was checked by ESET NOD32 Antivirus.
__________ 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