BGPMON Alert Questions

Kate Gerry kate at quadranet.com
Wed Apr 2 18:59:39 UTC 2014


I just got the same thing.

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          173.44.32.0/19: 
Prefix Description:   AS8100 
Update time:          2014-04-02 18:40 (UTC)
Detected by #peers:   1
Detected prefix:      173.44.32.0/19 
Announced by:         AS4761 (INDOSAT-INP-AP INDOSAT Internet Network Provider,ID)
Upstream AS:          AS4651 (THAI-GATEWAY The Communications Authority of Thailand(CAT),TH)
ASpath:               18356 38794 4651 4761 
Alert details:        https://portal.bgpmon.net/alerts.php?details&alert_id=41639483
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41639483

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          173.205.80.0/20: 
Prefix Description:   AS8100 
Update time:          2014-04-02 18:40 (UTC)
Detected by #peers:   1
Detected prefix:      173.205.80.0/20 
Announced by:         AS4761 (INDOSAT-INP-AP INDOSAT Internet Network Provider,ID)
Upstream AS:          AS4651 (THAI-GATEWAY The Communications Authority of Thailand(CAT),TH)
ASpath:               18356 38794 4651 4761 
Alert details:        https://portal.bgpmon.net/alerts.php?details&alert_id=41639484
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41639484

--
Kate Gerry
Network Manager
kate at quadranet.com

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-----Original Message-----
From: Joseph Jenkins [mailto:joe at breathe-underwater.com] 
Sent: Wednesday, April 2, 2014 11:52 AM
To: nanog at nanog.org
Subject: BGPMON Alert Questions

So I setup BGPMON for my prefixes and got an alert about someone in Thailand announcing my prefix.  Everything looks fine to me and I've checked a bunch of different Looking Glasses and everything announcing correctly.

I am assuming I should be contacting the provider about their misconfiguration and announcing my prefixes and get them to fix it.  Any other recommendations?

Is there a way I can verify what they are announcing just to make sure they are still doing it?

Here is the alert for reference:

Your prefix:          8.37.93.0/24:

Update time:          2014-04-02 18:26 (UTC)

Detected by #peers:   2

Detected prefix:      8.37.93.0/24

Announced by:         AS4761 (INDOSAT-INP-AP INDOSAT Internet Network
Provider,ID)

Upstream AS:          AS4651 (THAI-GATEWAY The Communications Authority of
Thailand(CAT),TH)

ASpath:               18356 9931 4651 4761




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