FYI: [Argus] 12.231.155/24 is 'hijacked' by anomalous origin 'AS13490'

Yang Xiang xiangy08 at
Thu Mar 22 11:45:47 CDT 2012


Just now we found a hijacking, as shown below.
Is it a real prefix hijacking, or a false alarm made by us?

Hope someone in this list, maybe the admin of those ASes listed below, can
give me a reply :-)
The feedback can help us improve Argus and provide more valuable


---------- Forwarded message ----------
From: argus-alarm <argus-alarm at>
Date: 2012/3/23
Subject: [Argus] 12.231.155/24 is 'hijacked' by anomalous origin 'AS13490'
To: argus <argus at>

Prefix hijacking alarm:
 Start Time(UTC): Mar-22-2012 16:29:07
 IP Prefix: 12.231.155/24
 Origin AS change: AS7018 -> AS13490
Argus mailing list
Argus at

Yang Xiang. Ph.D candidate. Tsinghua University

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