From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Rinse Kloek" <rinse@solcon.nl>
Subject: Iptables efficiency
Date: Mon, 10 Mar 2003 19:04:15 +0100
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We use a RedHat 7.3 machine as bridge on a P3 1.8 Ghz with 2 64 bits
Gigabit interfaces. On the machine we have a lot of iptables rules like :
            all  --  213.134.x.0        0.0.0.0/0
            all  --  0.0.0.0/0            213.134.x.0
TOS    all  --  213.134.x.4        0.0.0.0/0          TOS set 0x08
            all  --  0.0.0.0/0            213.134.x.4

We have about 3200 iptables rules on our bridge. I've tested today to
remove 1000 of these rules. The load dropped from about 40% to 25%. So I
think the iptables rule take up the most of the CPU load. Do you think this
is a problem of ineffeciency of iptables or just a 'limitation' in the
TCP/IP stack of linux ?

regards Rinse