From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paulo Andre <pandre@darkstar.nom.za>
Subject: Re: Inserting rules is extremly slow :((
Date: 12 Dec 2002 15:03:20 +0200
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To: nedco@unacs.bg
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On Thu, 2002-12-12 at 13:46, nedco@unacs.bg wrote:
> 
> 
> 
> Hi,
>  How to insert fast about 20000 rules in iptables.
>  If some document will be help , please let me know  :)
> 
> Thanks a lot
> Nedco
> 

I would write a firewall script and run it...
Put the script in /etc/rc.local and then if you ever reboot, viola

Paulo