[c-nsp] Access-list Question

Gert Doering gert at greenie.muc.de
Tue May 15 09:49:45 EDT 2007


Hi,

On Tue, May 15, 2007 at 02:43:09PM +0100, Tim Franklin wrote:
> To borrow a phrase, I would encourage my competition to design solutions
> based around non-contiguous wildmasks :)

Been that, done that, found it useful 

  deny ip any 195.30.0.255 0.0.255.0

- drop packets to all .255 addresses inside our /16 (anti-smurf).

But admittedly this is a rare case (and could probably go away today,
given that we see far less probes for that, and that most networks
have turned off directed-broadcasts these days)

gert
-- 
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de


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