nanog mailing list archives

Re: AS Leakage


From: Travis Pugh <tpugh () shore net>
Date: Wed, 4 Apr 2001 07:50:47 -0400 (EDT)



I take transit from Qwest (209), and had to contact them directly and open
a ticket several weeks ago to get them to stop leaking private ASNs into
my tables.  They stopped leaking them to me, but apparently going the
extra step and making sure the leak was filtered everywhere was too much
to ask.

-travis

On Wed, 4 Apr 2001, Marshall Eubanks wrote:


Hello;

   In our BGP table, there are this morning the following AS's :

 AS  64610 :    1 prefixes :    1 prefixes supported :   3 hops : as path  1239   209 64610
 AS  64615 :    2 prefixes :    2 prefixes supported :   3 hops : as path  1239   209 64615
 AS  64616 :    3 prefixes :    3 prefixes supported :   3 hops : as path  1239   209 64616
 AS  65008 :    3 prefixes :    3 prefixes supported :   3 hops : as path   145  2200 65008
 AS  65102 :    3 prefixes :    3 prefixes supported :   3 hops : as path  1239   209 65102
 AS  65209 :   12 prefixes :   12 prefixes supported :   3 hops : as path  1239   209 65209
 AS  65498 :    1 prefixes :    1 prefixes supported :   3 hops : as path  1239   209 65498

In the MBGP table for multicast, there are

 AS  64580 :    9 prefixes :    9 prefixes supported :   5 hops : as path  1239  5511  2200  2074 64580
 AS  65001 :    1 prefixes :    1 prefixes supported :   4 hops : as path  3300  8933  2200 65001
 AS  65498 :    1 prefixes :    1 prefixes supported :   3 hops : as path  1239   209 65498


I thought that these AS's were not supposed to be advertised globally.
Is this really a problem ? Is it worth the effort to track the sources of these down and
try and get them to remove them ?


                                   Regards
                                   Marshall Eubanks


   Multicast Technologies, Inc.
   10301 Democracy Lane, Suite 410
   Fairfax, Virginia 22030
   Phone : 703-293-9624          Fax     : 703-293-9609
   e-mail : tme () on-the-i com     http://www.on-the-i.com





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