From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eli Hadad Subject: iptables and performance Date: Tue, 13 May 2008 09:59:25 +0300 Message-ID: <1210661965.5829.227.camel@localhost.localdomain> References: <1210661080.5829.225.camel@localhost.localdomain> Reply-To: elhadad@cisco.com Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1210661080.5829.225.camel@localhost.localdomain> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=495; t=1210661967; x=1211525967; c=relaxed/simple; s=amsdkim1002; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=elhadad@cisco.com; z=From:=20Eli=20Hadad=20 |Subject:=20iptables=20and=20performance |Sender:=20; bh=gTEkyAgXE2XwMrGOo2u51MzypadDvsoBeT1id7qZCw0=; b=qJe2HW6xHas38O3/cTXEjWvzaJfyUf5JkewjMO6Z5uBKfkWVtrq/tOON04 bOd6exrSA8s7lZ1jte13H1QONwfd/cEZBwdUK9kK4aYVHl0bzYuSovrfC9f6 QeOsmB5dG8; Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: netfilter@vger.kernel.org Hi all, I am new to iptables and have few question I hope you can help with: 1. Is there a limit to the number of rules I can add to specific chain? I need to have around 20000 rules. 2. What is the performance implications of using this large number of rules? Is there any numbers people can share. 3. I also saw the HIPAC project which claim to have much better performance. Is there any work done to integrate same type of functionality into iptables? Thanks in advance, Eli