UUNet Offer New Protection Against DDoS

Sun Mar 7 01:22:31 UTC 2004

--On 06 March 2004 23:02 +0000 Paul Vixie <vixie at vix.com> wrote:

> ok, i'll bite.  why do we still do this?  see the following from June
> 2001:
>
> http://www.cctec.com/maillists/nanog/historical/0106/msg00681.html

Having had almost exactly that phrase in my peering contracts for
$n years, the answer is because if you are A, and peer is B,

if ( A>B )
  your spoofed traffic comes (statistically) from elsewhere so you don't
  notice. You are dealing with traffic from C, where C>>A
else
  you've signed their peering agreement, and are 'peering' on their
  terms instead. Was I going to pull peering with $tier1 from whom
  the occasional DoS came? Nope.

The only way this was ever going to work was if the largest networks
cascaded the requirements down to the smallest. And the largest networks
were the ones for whom (quite understandably) rpf was most difficult.

DoS (read unpaid for, unwanted traffic) is one of the best arguments
against settlement-free peering (FX: ducks & runs).

Alex