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

Sun Mar 7 20:48:00 UTC 2004

On Sun, 7 Mar 2004, Stephen J. Wilcox wrote:

>
> > actually, it would.  universal uRPF would stop some attacks, and it would
> > remove a "plan B" option for some attack-flowcharts.  i would *much* rather
> > play defense without facing this latent weapon available to the offense.
>
> I'm agreeing here, okay (yet anoter) example.. smurf attacks. These seem to be
> non-existent these days so shall we stop disabling 'ip directed-broadcast' on
> our routers?

smurf attacks are far from 'non-existent' today, however they are not as
popular as in 1999-2000-2001. In fact netscan.org still shows almost 9k
networks that are 'broken'.