BGPMON Alert Questions

Wed Apr 2 21:08:06 UTC 2014

They are advertising one of /22 right now as well,

Bret

On 04/02/2014 04:21 PM, Bryan Tong wrote:
> They have advertised all of ours now.
>
>
> On Wed, Apr 2, 2014 at 2:16 PM, Bob Evans <bob at fiberinternetcenter.com>wrote:
>
>> Yes, I too have alerts for some of our prefixes from the same offending
>> origin 4761
>>
>> On Wednesday April 2nd 2014 at 19:59 UTC we detected a Origin AS Change
>> event for your prefix (66.201.48.0/20 slash 20 bottom of nor cal)
>> The detected prefix: 66.201.48.0/20, was announced by AS4761
>> (INDOSAT-INP-AP INDOSAT Internet Network Provider,ID)
>> Alert description:       Origin AS Change
>> Detected Prefix:         66.201.48.0/20
>> Detected Origin AS:   4761
>> Expected Origin AS:   26803
>>
>> Bob Evans
>> CTO
>>
>>
>>
>>
>>> 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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