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Date:      Thu, 27 Jun 2002 10:38:38 -0700
From:      Lars Eggert <larse@ISI.EDU>
To:        Peter Brezny <pbrezny@purplecat.net>
Cc:        freebsd-net@freebsd.org
Subject:   Re: limiting directed broadcasts with ipfw.
Message-ID:  <3D1B4D9E.2010007@isi.edu>
References:  <NEBBIGLHNDFEJMMIEGOOIEGFFCAA.pbrezny@purplecat.net>
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[-- Attachment #1 --]
Peter Brezny wrote:
> I did a quick search through the man page, but didn't come up with anything
> right off that looked like it could help mitigate smurf attacks similar to
> the cisco:
> no ip directed-broadcast
> 
> feature.
> 
> Is there a way?

I thought directed broadcasts where disabled by default to begin with 
(as required by RFC what-was-the-number-again, the one that updates that 
piece of RFC 1812).

Have you *seen* your box forward directed broadcasts with a default 
configuration?

Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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