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Re: prefix hijack by ASN 8997

  • From: Marshall Eubanks
  • Date: Tue Sep 23 07:52:01 2008

On Sep 22, 2008, at 9:06 PM, Scott Weeks wrote:




I am hoping to confirm a short-duration prefix hijack of 72.234.0.0/15 (and another of our prefixes) by ASN 8997 ("OJSC North- West Telecom" in Russia) in using ASN 3267 (Russian Federal University Network) to advertise our space to ASN 3277 (Regional University and Scientific Network (RUSNet) of North-Western and Saint-Petersburg Area of Russia).

Is that what I'm seeing when I go to "bgplay.routeviews.org/bgplay", put in prefix 72.234.0.0/15 and select the dates:

22/9/2008 9:00:00 and 22/9/2008 15:00:00

If so, am I understanding it correctly if I say ASN 3267 saw a shorter path from ASN 8997, so refused the proper announcement from ASN 36149 (me) it normally hears from ASN 174 (Cogent).

I cannot confirm that from the monitoring program at AS 16517 :

[[email protected] mcast]$ grep 72.234.0.0 bgp.full.Sep_2*2008
bgp.full.Sep_21_00:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_21_06:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_21_12:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_21_18:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_22_00:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_22_06:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_22_12:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_22_18:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_23_00:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?
bgp.full.Sep_23_06:07:00_EDT_2008:*> 72.234.0.0/15 38.101.161.116 3990 0 174 209 36149 ?

You didn't specify the time zone you are in, so I looked at +- 1 day around it. If the hijack lasted 6 hours, we
should have seen it.

Regards
Marshall




If the above two are correct, would it be correct to say only the downstream customers of ASN 3267 were affected?

scott