15 Aug
2008
15 Aug
'08
9:26 a.m.
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. randy