nanog mailing list archives

Re: BGPMON Alert Questions


From: Rene Wilhelm <wilhelm () ripe net>
Date: Wed, 02 Apr 2014 21:12:40 +0200


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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