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

[Yang Xiang <xiangy08 () csnet1 cs tsinghua edu cn>]

Hi,

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
information.

BRs.

---------- Forwarded message ----------
From: argus-alarm <argus-alarm () csnet1 cs tsinghua edu cn>
Date: 2012/3/23
Subject: [Argus] 12.231.155/24 is 'hijacked' by anomalous origin 'AS13490'
To: argus <argus () csnet1 cs tsinghua edu cn>


Prefix hijacking alarm:
 Start Time(UTC): Mar-22-2012 16:29:07
 IP Prefix: 12.231.155/24
 Origin AS change: AS7018 -> AS13490
 Details: http://argus.csnet1.cs.tsinghua.edu.cn/fingerprints/207340/
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-- 
_________________________________________
Yang Xiang. Ph.D candidate. Tsinghua University
Argus: argus.csnet1.cs.tsinghua.edu.cn