Source address validation (was Re: UUNet Offer New Protection Against DDoS)

Sun Mar 7 22:13:28 UTC 2004

> smurf attacks are far from 'non-existent' today, however they are not as
> popular as in 1999-2000-2001. 

thats interesting, i've not seen/heard of one for ages.. (guess u have a wider 
testing ground :)

> In fact netscan.org still shows almost 9k networks that are 'broken'.

actually i just ran that file thro a quick awk and sort to see to what extent 
these networks exist..

as you can see almost all only reply two or three times, not like in the old
days with >100 replies being commonplace.. 

5224 2
1834 3
 897 4
 334 5
 167 6
  56 7
  19 8
  15 9
   7 10
  11 11
   6 12
   3 13
   6 14
   1 15
   1 16
   4 17
   5 18
   1 23
   1 26
   1 28
   1 100