nanog mailing list archives

Re: BGPMON Alert Questions


From: Bryan Tong <contact () nullivex com>
Date: Wed, 2 Apr 2014 13:44:48 -0600

Just got the same for 5 of my prefixes.

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          192.225.232.0/21:
Prefix Description:   ARIN direct allocation
Update time:          2014-04-02 19:26 (UTC)
Detected by #peers:   1
Detected prefix:      192.225.232.0/21
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
Alert details:
https://portal.bgpmon.net/alerts.php?details&alert_id=41651791
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41651791

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          199.87.232.0/21:
Prefix Description:   Direct ARIN allocation
Update time:          2014-04-02 19:26 (UTC)
Detected by #peers:   1
Detected prefix:      199.87.232.0/21
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
Alert details:
https://portal.bgpmon.net/alerts.php?details&alert_id=41651792
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41651792

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          162.245.228.0/24:
Update time:          2014-04-02 19:26 (UTC)
Detected by #peers:   1
Detected prefix:      162.245.228.0/24
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
Alert details:
https://portal.bgpmon.net/alerts.php?details&alert_id=41651793
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41651793

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          198.44.191.0/24:
Prefix Description:   ARIN direct allocation
Update time:          2014-04-02 19:26 (UTC)
Detected by #peers:   1
Detected prefix:      198.44.191.0/24
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
Alert details:
https://portal.bgpmon.net/alerts.php?details&alert_id=41651794
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41651794

====================================================================
Possible Prefix Hijack (Code: 10)
====================================================================
Your prefix:          23.249.176.0/20:
Prefix Description:   ARIN direct allocation
Update time:          2014-04-02 19:26 (UTC)
Detected by #peers:   1
Detected prefix:      23.249.176.0/20
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 9931 4651 4761
Alert details:
https://portal.bgpmon.net/alerts.php?details&alert_id=41651795
Mark as false alert:  https://portal.bgpmon.net/fp.php?aid=41651795


On Wed, Apr 2, 2014 at 1:12 PM, Rene Wilhelm <wilhelm () ripe net> wrote:


On 4/2/14, 8:51 PM, Joseph Jenkins wrote:

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?

You can check  RIPEstat's BGP  looking-glass:

https://stat.ripe.net/widget/looking-glass#w.resource=8.37.93.0%2F24

This combines the result of 13 RIPE RIS route collectors.

A minute ago I saw the INDOSAT announcement at 2 locations (Amsterdam,
Frankfurt) from 3 out of 101 peers, but it seems to have stopped just now.

-- Rene




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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