[apops] Fwd: Korea Telecom leaking >1000 prefixes to Internet

  • To: gijucho at kt dot co dot kr, hanjh at kt dot co dot kr
  • Subject: [apops] Fwd: Korea Telecom leaking >1000 prefixes to Internet
  • From: Philip Smith <pfs at cisco dot com>
  • Date: Tue, 12 Dec 2000 04:23:16 +1000
  • Cc: apops at lists dot apnic dot net
  • Sender: owner-apops@lists.apnic.net
    • Hi,
      
      I sent this three days ago, with no apparent resolution. Please can you, or 
      your upstreams repair this leakage.
      
      kind regards,
      
      philip
      --
      
      >Date: Sat, 09 Dec 2000 09:59:53 +1000
      >To: gijucho at kt dot co dot kr, hanjh at kt dot co dot kr
      >From: Philip Smith <pfs at cisco dot com>
      >Subject: Korea Telecom leaking >1000 prefixes to Internet
      >Cc: hostmast at nic dot or dot kr
      >
      >Hi,
      >
      >Since the 2nd of December, Korea Telecom has been leaking over 1000 
      >prefixes from your aggregate blocks to the Internet routing table. I'm 
      >seeing these prefixes originating from AS9768 - an excerpt is below:
      >
      >gw>sh ip bgp regexp _9768$
      >
      > > 210.90.24.128/26 202.249.2.24                           0 2516 4766 
      > 3608 9768 i
      >*> 210.90.32.128/25 202.249.2.24                           0 2516 4766 
      >3608 9768 i
      >*> 210.90.37.0/25   202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*> 210.90.48.128/25 202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*> 210.90.54.0/25   202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*> 210.90.61.0/25   202.249.2.24                           0 2516 4766 
      >3608 9768 i
      >*> 210.90.84.0/25   202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*  210.90.89.0      202.249.2.109                          0 2497 1239 
      >3608 3608 9768 i
      >*>                  202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*                   202.249.2.19                           0 2497 1239 
      >3608 3608 9768 i
      >*> 210.90.90.0/25   202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*> 210.90.112.0/25  202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >*> 210.90.117.128/25 202.249.2.24                           0 2516 4766 
      >3608 9768 i
      >*> 210.90.123.240/28 202.249.2.24                           0 2516 4766 
      >7563 9768 i
      >
      >Please will you fix your filters so that these prefixes are not announced 
      >to the Internet. FYI, no prefixes > /24 should appear in the Internet 
      >routing table.
      >
      >Korea Telecom is also announcing
      >
      >*> 105.200.136.0/30 202.249.2.24                           0 2516 4766 
      >7563 9768 ?
      >
      >105.200.136.0/30 has not been assigned to any organisation in the public 
      >Internet, so should not be announced. Please can you fix this also.
      >
      >Thanks for your kind attention.
      >
      >philip
      >--
      
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