Re: smurf's attack...

["Jordyn A. Buchanan" <jordyn () bestweb net>]

At 3:41 PM +0000 9/5/97, DAVE NORDLUND wrote:
> > Likewise, not all broadcast adresses necessarily end with .255,
> > so filtering .255 won't help anyway in the presence of something
> > like a /25 with a X.X.X.127 broadcast.
>
> Agreed but it is not easy for a hacker to determine CIDR masks.  It
> is my impression that the only thing being sent is classfull broadcasts.

Further, smaller networks (which, theoretically speaking at least, have
fewer hosts) would be less useful in a smurf attack than larger ones, as
there would be less of a multiplying effect.

Jordyn

|----------------------------------------------------------------|
|Jordyn A. Buchanan                    mailto:jordyn () bestweb net |
|Bestweb Corporation                      http://www.bestweb.net |
|Senior System Administrator                     +1.914.271.4500 |
|----------------------------------------------------------------|