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anuragbhatia

join:2010-03-28

What sort of agreement is this?

Hello everyone!

A crazy situation:

When I try to tracroute from my Europen VPS to my Indian server, I see as6453 in route (ASN 6453 is of Tata Communications) but if we observe real ASN of all IP's in middle, I see ASN 18895 which is of Nustream Communications.

Have a look at this

5 ae-4-4.ebr1.Frankfurt1.Level3.net (4.69.134.2) [AS3356] 6.713 ms 6.923 ms 6.916 ms
6 ae-71-71.csw2.Frankfurt1.Level3.net (4.69.140.6) [AS3356] 18.441 ms ae-91-91.csw4.Frankfurt1.Level3.net (4.69.140.14) [AS3356] 15.512 ms ae-71-71.csw2.Frankfurt1.Level3.net (4.69.140.6) [AS3356] 19.739 ms
7 ae-2-79.edge4.Frankfurt1.Level3.net (4.68.23.76) [AS3356] 7.582 ms ae-4-99.edge4.Frankfurt1.Level3.net (4.68.23.204) [AS3356] 7.323 ms 7.302 ms
8 ix-2-3-0-0.tcore1.FR0-Frankfurt.as6453.net (195.219.180.97) [AS6453] 7.052 ms 7.048 ms 4.68.111.146 (4.68.111.146) [AS3356] 15.523 ms
9 if-3-21.tcore1.NYY-NewYork.as6453.net (216.6.90.17) [AS7633] 98.767 ms 98.751 ms 98.745 ms
10 if-4-0-0-28.mcore4.NYY-NewYork.as6453.net (209.58.60.33) [AS18895] 98.718 ms if-15-0-0-20.mcore4.NYY-NewYork.as6453.net (209.58.60.133) [AS18895] 98.709 ms if-4-0-0-28.mcore4.NYY-NewYork.as6453.net (209.58.60.33) [AS18895] 98.665 ms
11 ix-6-2.mcore4.NYY-NewYork.as6453.net (209.58.60.146) [AS18895] 205.117 ms 205.082 ms 204.957 ms
12 218.248.255.89 (218.248.255.89) [AS9829] 205.145 ms 205.220 ms 205.211 ms
13 218.248.173.37 (218.248.173.37) [AS9829] 248.153 ms 248.162 ms 248.146 ms

I don't understand when in real those ASN's belong to other players, why IP reverse of these nodes have as6453? Any idea what sort of agreements these players have?

Thanks!
Expand your moderator at work

iansltx

join:2007-02-19
Austin, TX
kudos:2
reply to anuragbhatia

Re: What sort of agreement is this?

I know this is necroposting, but...

Your traceroute app is probably wrongly identifying ASNs in the middle there.


anuragbhatia

join:2010-03-28
reply to anuragbhatia
I guess you are right.

I checked those IP's and seems like all belong to AS6453. So most likely it was due to minor glitch in traceroute.

Thanks for help.