Is it time to abandon bogon prefix filters?
randy at psg.com
Fri Aug 15 08:26:44 CDT 2008
> In other words, our earlier estimate of 60% was way off... you can
> get 92.1% effectiveness at bogon filtering by just dropping 1918
> addresses, a filter that you will never have to change.
my read is that the 60% was an alleged 60% of attacks came from *all*
bogon space. this now seems in the low single digit percentge. of
that, the majority is from 1918 space.
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