Is it time to abandon bogon prefix filters?

Randy Bush randy at psg.com
Thu Aug 14 23:16:48 CDT 2008


> bogon block     attacks % of attacks
> 0.0.0.0/7       65      0.01
> 2.0.0.0/8       3       0.00
> 5.0.0.0/8       3       0.00
> 10.0.0.0/8      8794    1.21
> 23.0.0.0/8      4       0.00
> 27.0.0.0/8      7       0.00
> 92.0.0.0/6      101     0.01
> 100.0.0.0/6     374     0.05
> 104.0.0.0/5     303     0.04
> 112.0.0.0/5     775     0.11
> 120.0.0.0/8     45      0.01
> 127.0.0.0/8     6       0.00
> 172.16.0.0/12   3646    0.50
> 174.0.0.0/7     1       0.00
> 176.0.0.0/5     1       0.00
> 192.168.0.0/16  7451    1.02
> 223.0.0.0/8     10      0.00
> 224.0.0.0/3     8       0.00

well, we can see why andree wanted to look behind the 1918 stuff.  it is
the elephant.

thanks, danny!

randy




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