[CentOS] What can I do to UNDERSTAND why I can't reach centos.org (but everyone else can)?
Rock
RockSockDoc at gmail.com
Fri Mar 1 16:47:59 UTC 2013
On Fri, 01 Mar 2013 10:27:12 -0600, Les Mikesell wrote:
> Those 'looking glass' sites can show you if the bgp
> routes are propagating to various locations.
I saw the reference to the lookingglass site, e.g.,
http://www.lookinglass.org
But, I'm sorry ... I'm totally clueless as to how to properly USE them.
May I ask:
Q: Which of the IP addresses below do I put into lookingglass to gather data?
Given that these all died as follows:
$ traceroute tempotv.com.tr ==> died on the 23rd hop
19 82.222.13.145 (82.222.13.145) 262.456 ms 82.222.3.117 (82.222.3.117) 270.129 ms 273.278 ms
20 82.222.13.106 (82.222.13.106) 276.814 ms 276.812 ms 276.797 ms
21 82.222.253.82 (82.222.253.82) 273.131 ms 264.450 ms 247.432 ms
22 82.222.254.210 (82.222.254.210) 247.354 ms 247.362 ms 82.222.224.234 (82.222.224.234) 309.858 ms
23 asy60.asy53.tellcom.com.tr (92.45.53.60) 326.022 ms 329.493 ms 329.483 ms
24 * * * (and so on)
$ traceroute -I www.centos.org ==> died on the 19th (penultimate) hop
15 ae-6-6.ebr2.LosAngeles1.Level3.net (4.69.148.201) 60.128 ms 62.055 ms 63.873 ms
16 ae-3-3.ebr3.Dallas1.Level3.net (4.69.132.78) 64.999 ms 56.867 ms 59.059 ms
17 ae-73-73.csw2.Dallas1.Level3.net (4.69.151.145) 60.437 ms 62.928 ms 57.975 ms
18 ae-2-70.edge3.Dallas1.Level3.net (4.69.145.72) 59.828 ms 55.071 ms 57.122 ms
19 LAYERED-TEC.edge3.Dallas1.Level3.net (4.71.170.6) 56.049 ms 65.838 ms 58.644 ms
20 * * * (and so on)
$ traceroute www.gu.ac.ir ==> Iran, died on the 22nd hop
14 rostelecom-ic-300487-ffm-b11.c.telia.net (213.248.96.202) 197.545 ms 197.545 ms 284.625 ms
15 95.167.92.186 (95.167.92.186) 324.490 ms 324.486 ms 324.468 ms
16 95.167.14.198 (95.167.14.198) 378.393 ms 378.393 ms 378.378 ms
17 * * *
18 195.146.33.29 (195.146.33.29) 369.322 ms 369.306 ms 300.357 ms
19 78.38.245.228 (78.38.245.228) 300.263 ms 300.264 ms 306.080 ms
20 78.38.244.250 (78.38.244.250) 290.148 ms 300.201 ms 300.198 ms
21 89.221.87.25 (89.221.87.25) 338.022 ms 338.042 ms 337.997 ms
22 95.38.120.254 (95.38.120.254) 330.673 ms 330.681 ms 330.669 ms
23 * * * (and so on)
$ traceroute www.gu.edu.pk ==> Pakistan, died on the 19th hop
10 charter-peer.sv1.layer42.net (69.36.225.18) 45.929 ms 48.200 ms 48.191 ms
11 bbr02snjsca-bue-6.snjs.ca.charter.com (96.34.3.2) 48.173 ms 50.328 ms 52.805 ms
12 bbr01dnvrco-bue-2.dnvr.co.charter.com (96.34.0.3) 81.440 ms 81.442 ms 81.423 ms
13 bbr01olvemo-bue-1.olve.mo.charter.com (96.34.0.145) 112.975 ms 112.900 ms 112.801 ms
14 bbr01blvlil-tge-0-15-0-4.blvl.il.charter.com (96.34.0.111) 129.811 ms 129.811 ms 93.669 ms
15 bbr01atlnga-tge-0-0-0-9.atln.ga.charter.com (96.34.0.120) 122.469 ms 122.468 ms 146.517 ms
16 crr01sghlga-bue-3.sghl.ga.charter.com (96.34.2.71) 123.937 ms 123.943 ms 127.972 ms
17 acr02atlnga-tge-0-0-0-0.atln.ga.charter.com (96.34.72.179) 130.189 ms 132.137 ms 132.136 ms
18 75-131-187-34.static.gwnt.ga.charter.com (75.131.187.34) 129.996 ms 129.998 ms 129.978 ms
19 67.23.161.143 (67.23.161.143) 129.894 ms 129.873 ms 129.859 ms
20 * * * (and so on)
$ traceroute -m 255 www.tourism.gov.my ==> Malaysia died on the 19th hop
11 gi9-0-0.cr2.nrt1.asianetcom.net (202.147.50.134) 244.797 ms 244.804 ms 244.797 ms
12 ge-0-0-0-0.gw3.nrt4.asianetcom.net (202.147.0.226) 215.347 ms 215.348 ms 220.710 ms
13 61.8.59.22 (61.8.59.22) 267.994 ms 268.004 ms 267.960 ms
14 ge-2-3-0-0.sin-64cbe-1a.ntwk.msn.net (207.46.41.75) 325.436 ms 259.629 ms 259.605 ms
15 10.22.212.213 (10.22.212.213) 217.562 ms 10.22.212.209 (10.22.212.209) 273.695 ms ge-5-2-0-0.sin-64cbe-1b.ntwk.msn.net (207.46.41.26) 265.336 ms
16 10.175.56.241 (10.175.56.241) 265.273 ms * 10.175.56.49 (10.175.56.49) 272.494 ms
17 10.175.61.5 (10.175.61.5) 282.798 ms 10.175.60.7 (10.175.60.7) 248.975 ms 10.241.90.205 (10.241.90.205) 258.597 ms
18 10.78.236.2 (10.78.236.2) 258.541 ms 10.78.220.2 (10.78.220.2) 211.475 ms 10.241.88.59 (10.241.88.59) 220.578 ms
19 * * 10.78.246.2 (10.78.246.2) 239.054 ms
20 * * * (and so on)
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