From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Bewerbungsadresse@web.de" <bewerbungsadresse@web.de>
Subject: IP-Range and Subnetmask
Date: Wed, 05 Nov 2003 22:20:58 +0100
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To: netfilter@lists.netfilter.org

hi

i=B4ve a simple question

is it possible to prevent spoofing attacks to 172.16.0.0-172.31.255.255=20
on the external internet IP in one rule?

something like that

iptables -A INPUT -p tcp -s 172.16.0.0/255.31.0.0 -d $INET_IP -i ppp0 -j=20
SPOOFED

???

but i think the rule above is wrong
so: is it possible at all?
or do i have to write a loop or all single ip-ranges manually?

thx
greez