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<div class="moz-cite-prefix">On 31/12/2015 07:31, Md. Mahbubul Alam
Reyad wrote:<br>
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<p class="MsoNormal"><span
style="font-family:"Georgia","serif";color:#002060">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Georgia","serif";color:#002060"><o:p>�</o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Georgia","serif";color:#002060">I
received the following alert mail from bgpmon where one of
our (QUBEE) prefix (163.47.76.0/22 ) is announce by an
indian ISP. �FYN this IP prefix was newly acquired from
APNIC and yet to be announce from QUBEE (AS45951) network.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Georgia","serif";color:#002060"><o:p>�</o:p></span></p>
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<br>
It looks like they're not announcing it at the moment. Here are some
useful test sites<br>
<br>
* <a class="moz-txt-link-freetext" href="http://bgp.he.net/">http://bgp.he.net/</a><br>
<br>
Search by IP address or AS number. It doesn't see anything for
163.47.76.0/22<br>
<br>
* Other looking glasses, e.g. telnet route-views.oregon-ix.net<br>
<br>
This shows no route (only default) matching that address<br>
<br>
route-views>sh ip bgp 163.47.76.0<br>
BGP routing table entry for 0.0.0.0/0, version 8805302<br>
Paths: (4 available, best #4, table default, RIB-failure(17))<br>
� Not advertised to any peer<br>
� Refresh Epoch 1<br>
� 58901 51167<br>
��� 93.104.209.174 from 93.104.209.174 (93.104.209.174)<br>
����� Origin IGP, localpref 100, valid, external<br>
����� rx pathid: 0, tx pathid: 0<br>
� Refresh Epoch 1<br>
� 58443 45177<br>
��� 103.255.249.22 from 103.255.249.22 (103.255.249.250)<br>
����� Origin IGP, localpref 100, valid, external<br>
����� rx pathid: 0, tx pathid: 0<br>
� Refresh Epoch 1<br>
� 20771 1299<br>
��� 80.241.176.31 from 80.241.176.31 (80.241.176.30)<br>
����� Origin IGP, localpref 100, valid, external<br>
����� rx pathid: 0, tx pathid: 0<br>
� Refresh Epoch 1<br>
� 58511 2764<br>
��� 103.247.3.45 from 103.247.3.45 (103.247.3.45)<br>
����� Origin IGP, localpref 100, valid, external, best<br>
����� rx pathid: 0, tx pathid: 0x0<br>
route-views><br>
<br>
* <a class="moz-txt-link-freetext" href="https://stat.ripe.net/">https://stat.ripe.net/</a><br>
which will take you to<br>
<a class="moz-txt-link-freetext" href="https://stat.ripe.net/widget/routing-history">https://stat.ripe.net/widget/routing-history</a><br>
<br>
This shows a full history of announcements, and I can only see that
route being announced up to March 2012.<br>
<br>
You could also try the older site <a class="moz-txt-link-freetext" href="http://bgplay.routeviews.org/">http://bgplay.routeviews.org/</a>
(needs Java I think)<br>
<br>
So... it seems to me that if AS131788 is really announcing your
route, it's probably being filtered before the rest of the Internet
sees it. Or maybe it was just a temporary glitch.<br>
<br>
I note from<br>
<a class="moz-txt-link-freetext" href="http://bgp.he.net/AS131788">http://bgp.he.net/AS131788</a><br>
that it says they are also announcing bogons :-(<br>
<br>
Regards,<br>
<br>
Brian.<br>
<br>
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