Date: Mon, 21 Jul 1997 14:43:45 -0400 (EDT) From: Mike D Tancsa <mdtancsa@sentex.net> To: questions@freebsd.org, hackers@freebsd.org Subject: preventing ICMP echo requests to the broadcast address Message-ID: <199707211843.OAA29815@granite.sentex.net>
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Is there any easy way to always prevent someone from pinging the broadcast addresses on my networks other than explicitly filtering them using ipfw ? Also, while on the topic of ipfw, does anyone know how much processor overhead ipfw adds to the system ? I suppose the more rules one adds the worse it gets. But does anyone have a reasonable guestimate ? Thanks, ---Mike
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