Odd announcement from AS27048

Tue Mar 12 14:23:24 UTC 2013

On Tue, Mar 12, 2013 at 9:55 AM, Alain Hebert <ahebert at pubnix.net> wrote:
>     Hi,
>
>     On the 5th we notice that 27048 was announcing 2 of ours /24
>
>         812 3549 209 721 27064 27047 27047 27047 27048
>

 maybe 721 doesn't have prefix AND as-path filters?  (or 209 maybe?)
or intentional filtering gone wrong :(

>     It lasted about 9h but didn't impact anything due to its prepend and
> such...
>
>     My inquiry is:
>
>         . False positive?
>         . Broken 16b <=> 32b ASN's?
>         . Human Error?
>         . I should remove my Echelon triggering keywords from my
> personal .sig?
>         ( 27048 is part of a US DoD ASN range =D ).
>
>     I check around and it happened a few times in the past.
>     ( I saw a CIDR report in 2008 where 27048 was announcing 8m+ IP's )
>
>     Let me know.
>
> --
> -----
> Alain Hebert                                ahebert at pubnix.net
> PubNIX Inc.
> 50 boul. St-Charles
> P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
> Tel: 514-990-5911  http://www.pubnix.net    Fax: 514-990-9443
>
>