From: Ron Buchalski [mailto:rbuchals@hotmail.com] Sent: Monday, July 02, 2001 7:52 AM

It may be possible for the features of qos to help limit the extent of the attack, but with no predictability of where the attack sources or attack destinations are, you'd either need to apply qos when the attack occurs (reactive), or deploy it EVERYWHERE, on ALL provider's networks (intensely proactive). I doubt that anyone has the time or effort to deploy worldwide qos in order to stop random (and small, compared to overall traffic) dos attacks.

This WAS the idea, thanks for pointing out the weakness. Basically, yet another means to filter. But, too much work to implement. According to this, it wouldn't scale.