BGP hijack from 23724 -> 4134 China?

Bruce Morgan Bruce.Morgan at
Sun Apr 11 21:36:23 CDT 2010

Hi Bob,

AARNet does have a fairly strong policy on prefix-filtering.

We also peer with route-views servers so that Cyclops and other projects can
actually get this type of information. Best not to shoot the messenger as
the message can be useful ;-)



> From: peering-admin at [mailto:peering-admin at]
> On Behalf Of Bob Poortinga
> Sent: Friday, 9 April 2010 11:13 PM
> To: nanog at
> Cc: peering at; Bruce Morgan
> Subject: Re: BGP hijack from 23724 -> 4134 China?
> Jay Hennigan <jay at> writes:
>> We just got Cyclops alerts showing several of our prefixes sourced
> from
>> AS23474 propagating through AS4134.  Anyone else?
> For the record, yes.  Two of our blocks were announced via 7575 4134
> 23724
> yesterday.  First seen by Cyclops at 2010-04-08 15:57:13 UTC and lasted
> about 20 minutes.
> Does AS7575, Australian Academic and Reasearch Network, do any
> filtering?
> -- 
> Bob Poortinga  K9SQL        <>
> Technology Service Corp.    <>
> Bloomington, Indiana  US

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