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264 posts

Ultimate Geek
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Topic # 26251 16-Sep-2008 14:54
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Hi there.

I don't exactly know how Telstra can not pay any attention to how traffic on their network is being routed.
Here is a very nice example:

----# traceroute ftp.nz.debian.org
traceroute to ftp.citylink.co.nz (202.7.6.9), 30 hops max, 52 byte packets
...
 4  218.101.61.161 (218.101.61.161)  11.563 ms  11.509 ms  11.347 ms
 5  ge-0-2-0-1.xcore1.acld.telstraclear.net (203.98.50.251)  11.579 ms  11.721 ms  11.816 ms
 6  203.167.233.10 (203.167.233.10)  11.300 ms  11.799 ms  11.343 ms
 7  i-9-3.wil-core02.net.reach.com (202.84.219.113)  136.032 ms  138.121 ms  135.657 ms
 8  i-7-8.tlot03.net.reach.com (202.84.251.238)  136.249 ms  136.078 ms  135.737 ms
 9  ge-6-20.car3.LosAngeles1.Level3.net (4.68.111.133)  136.782 ms ge-6-21.car3.LosAngeles1.Level3.net (4.68.111.137)  136.891 ms  137.268 ms
10  ae-1-69.edge5.LosAngeles1.Level3.net (4.68.20.11)  175.924 ms  227.710 ms  175.898 ms
11  CWIE-LLC.edge5.LosAngeles1.Level3.net (4.59.48.30)  136.096 ms  137.304 ms  136.562 ms
12  Vlan802.br02-200p-sfo.unitedlayer.com (209.237.224.137)  148.482 ms  148.321 ms  148.336 ms
13  207.7.129.14 (207.7.129.14)  148.332 ms  148.791 ms  147.615 ms
14  ftp.citylink.co.nz (202.7.6.9)  148.333 ms  149.043 ms  148.319 ms

Citylink's FTP server is in Wellington!!! ( http://www.geoiptool.com/en/?IP=202.7.6.9 )

----## traceroute www.citylink.co.nz
traceroute to www.citylink.co.nz (202.8.44.4), 30 hops max, 52 byte packets
 ...
 4  218.101.61.161 (218.101.61.161)  14.881 ms  11.494 ms  10.757 ms
 5  * * *
 6  g1-0-927.u11.tspn.telstraclear.net (218.101.61.6)  13.796 ms  23.951 ms  14.137 ms
 7  g1-926.u12.brh.telstraclear.net (218.101.61.35)  26.288 ms  26.438 ms  28.036 ms
 8  lnk1-ihug-ge-1-0-1642.u12.telstraclear.net (203.98.18.162)  21.709 ms  22.043 ms  21.630 ms
 9  fa0-24.akl-sky-car1.ihug.net (203.109.143.34)  22.416 ms  23.420 ms  21.685 ms
10  203-109-145-17.static.ihug.co.nz (203.109.145.17)  88.763 ms  24.259 ms  23.133 ms
11  rufer.citylink.co.nz (202.8.44.97)  34.019 ms  33.691 ms  35.383 ms
12  zidane.citylink.co.nz (202.8.44.4)  35.254 ms  36.352 ms  36.975 ms

This is absolutely stupid!!!
And yes, I know iHug have their own Debian server.
It's about the principle.

D

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262 posts

Ultimate Geek
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  Reply # 164826 16-Sep-2008 15:00
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Telstra don't peer at WIX so traffic destined to citylink's FTP goes via America.



264 posts

Ultimate Geek
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  Reply # 164837 16-Sep-2008 15:36
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How do you explain the routing to www.citylink.co.nz then?
And if there really isn't a direct exchange then route it via Australia but for dog's sake not the US!!

167 posts

Master Geek
+1 received by user: 6


  Reply # 164847 16-Sep-2008 15:54
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That would be because ftp.citylink.co.nz is actually hosted in the states, not in NZ, while the www.citylink.co.nz server is local.

Check out this trace I did from a server in the US:

[x-cubed@host ~] traceroute ftp.citylink.co.nz
traceroute to ftp.citylink.co.nz (202.7.6.9), 64 hops max, 40 byte packets
 1  fa-0-24.ucg-as29.tpa.sagonet.net (66.111.62.1)  1.88 ms  1.153 ms  1.131 ms
 2  ve20.core01a.tpa.sagonet.net (65.110.32.65)  0.897 ms  0.841 ms  0.786 ms
 3  ve40.core01.atl.sagonet.net (63.246.159.42)  12.901 ms  12.782 ms  14.29 ms
 4  border2.ge1-1.sagonet-1.acs002.pnap.net (70.42.180.149)  13.339 ms  13.466 ms  13.483 ms
 5  core5.tge4-3-bbnet2.acs.pnap.net (64.94.0.78)  13.558 ms core5.tge4-1-bbnet1.acs.pnap.net (64.94.0.14)  13.735 ms  13.536 ms
 6  ge-6-3-107.car2.Atlanta1.Level3.net (209.246.169.149)  13.762 ms  13.592 ms  13.559 ms
 7  ae-62-51.ebr2.Atlanta2.Level3.net (4.68.103.29)  13.707 ms  23.585 ms  17.640 ms
 8  * ae-73-70.ebr3.Atlanta2.Level3.net (4.69.138.20)  18.110 ms  27.49 ms
 9  ae-7.ebr3.Dallas1.Level3.net (4.69.134.21)  44.807 ms  42.437 ms *
10  ae-3.ebr2.LosAngeles1.Level3.net (4.69.132.77)  74.709 ms  76.281 ms  71.794 ms
11  ae-72-72.csw2.LosAngeles1.Level3.net (4.69.137.22)  65.632 ms  73.277 ms  71.722 ms
12  ae-2-79.edge5.LosAngeles1.Level3.net (4.68.20.75)  66.107 ms  66.236 ms  66.249 ms
13  CWIE-LLC.edge5.LosAngeles1.Level3.net (4.59.48.30)  118.791 ms  63.849 ms  63.442 ms
14  Vlan802.br02-200p-sfo.unitedlayer.com (209.237.224.137)  75.494 ms  74.986 ms  75.556 ms
15  207.7.129.14 (207.7.129.14)  76.303 ms  76.234 ms  76.561 ms
16  ftp.citylink.co.nz (202.7.6.9)  76.498 ms  76.875 ms  76.320 ms


[x-cubed@host ~] traceroute www.citylink.co.nz
traceroute to www.citylink.co.nz (202.8.44.4), 64 hops max, 40 byte packets
 1  fa-0-24.ucg-as29.tpa.sagonet.net (66.111.62.1)  1.50 ms  1.75 ms  0.879 ms
 2  ve20.core01a.tpa.sagonet.net (65.110.32.65)  0.682 ms  0.772 ms  0.632 ms
 3  ve40.core01.atl.sagonet.net (63.246.159.42)  13.22 ms  12.647 ms  12.641 ms
 4  ge2-7.br01.atl01.pccwbtn.net (63.216.31.173)  13.805 ms  13.743 ms  14.242 ms
 5  anc.ge2-7.br01.lax04.pccwbtn.net (63.218.51.54)  67.345 ms  67.356 ms  67.320 ms
 6  po0-1.gw1.lax1.asianetcom.net (202.147.61.157)  67.511 ms  67.164 ms  67.361 ms
 7  po6-0.gw1.akl1.asianetcom.net (202.147.61.190)  224.519 ms  224.388 ms  224.374 ms
 8  IHL-0007.gw1.akl1.asianetcom.net (203.192.166.42)  224.297 ms  224.260 ms  224.481 ms
 9  fa0-24.akl-sky-car1.ihug.net (203.109.143.34)  224.501 ms  224.598 ms  224.532 ms
10  203-109-145-17.static.ihug.co.nz (203.109.145.17)  225.2 ms  225.662 ms  225.695 ms
11  * rufer.citylink.co.nz (202.8.44.97)  238.316 ms  236.16 ms
12  zidane.citylink.co.nz (202.8.44.4)  236.716 ms  236.364 ms  237.646 ms

262 posts

Ultimate Geek
Inactive user


  Reply # 164859 16-Sep-2008 16:22
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Because the cost incurred on the ftp is greater for Citylink for ISP's that dont peer I guess. The FTP is hosted in Wellington.

This is on a telstra fibre link, which is wholesaled through Citylink anyway

H:\>tracert ftp.citylink.co.nz

Tracing route to ftp.citylink.co.nz [202.7.6.9]
over a maximum of 30 hops:

  1     2 ms     3 ms     3 ms  10.73.199.250
  2     2 ms     8 ms     5 ms  203.167.229.1
  3     2 ms     5 ms     1 ms  anycast.wix.net.nz [202.7.0.7]
  4     3 ms     1 ms     1 ms  ftp.citylink.co.nz [202.7.6.9]

I can't remember the reason why it goes through America but I think thats the only route available to ftp.citylink.co.nz for ISP's that don't peer at WIX and was done that way to make a point.

2353 posts

Uber Geek
+1 received by user: 373

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  Reply # 164861 16-Sep-2008 16:28
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raab: Because the cost incurred on the ftp is greater for Citylink for ISP's that dont peer I guess. The FTP is hosted in Wellington.

t.


The ftp  is actually hosted in multiple places.. WIX, APE, Overseas etc via an Anycast address (same ip address)

262 posts

Ultimate Geek
Inactive user


  Reply # 164864 16-Sep-2008 16:30
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fair enough

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