Snap, announcing a few of our /21s and a /23. Seems they did something similar a few year ago: http://www.bgpmon.net/hijack-by-as4761-indosat-a-quick-report/ I can't make any contact with Indosat (website non responsive / email queuing). This is what I have back from Aware Corp. AS18356 (first AS in the path): I can confirm that we are seeing your prefixes as advertised by AS4761, via one of our upstreams CAT AS4651 (THAI-GATEWAY The Communications Authority of Thailand(CAT),TH) We (Aware Corporation - AS18356) operate a BGPMon PeerMon node which is probably why you are seeing this alert from our AS. It is likely that your highjacked prefixes are being advertised to all of CAT's customers. I suggest contacting AS4761 (INDOSAT-INP-AP INDOSAT Internet Network Provider,ID) directly for resolution as there is little we can do as a stub AS. Regards, Lee. -----Original Message----- From: Vlade Ristevski [mailto:vristevs@ramapo.edu] Sent: 02 April 2014 20:05 To: nanog@nanog.org Subject: Re: BGPMON Alert Questions I just got the same alert for one of my prefixes one minute ago. On 4/2/2014 2:59 PM, Frank Bulk wrote:
I received a similar notification about one of our prefixes also a few minutes ago. I couldn't find a looking glass for AS4761 or AS4651. But I also couldn't hit the websites for either AS, either.
Frank
-----Original Message----- From: Joseph Jenkins [mailto:joe@breathe-underwater.com] Sent: Wednesday, April 02, 2014 1:52 PM To: nanog@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
-- Vlad