Who does source address validation? (was Re: what's that smell?)

Tue Oct 8 20:57:42 UTC 2002

On Tue, 8 Oct 2002 Valdis.Kletnieks at vt.edu wrote:

> > Because if 20% of all people generate this crap (which is a huge number)
> > it must be 90% of their traffic to get at 18%. How can someone generate so
> > much useless traffic and keep doing it, too?

> How much you want to bet that *all* the internal backbone traffic from these
> sites is pouring out into the Internet, and they've had to upgrade from a T1 to
> a DS3 and are looking at a OC3, and the service provider is keeping their mouth
> shut because they can just catch an OC3's worth of packets and drop most of
> them on the floor

Ok, but how do you generate megabits worth of traffic for which there is
no return traffic? At some level, someone or something must be trying to
do something _really hard_ but keep failing every time. It just doesn't
make sense.