From owner-freebsd-hackers@FreeBSD.ORG Sun Nov 30 00:52:14 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5CBF716A4CE for ; Sun, 30 Nov 2003 00:52:14 -0800 (PST) Received: from atlas.informatik.rwth-aachen.de (atlas.Informatik.RWTH-Aachen.DE [137.226.194.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7272843FE1 for ; Sun, 30 Nov 2003 00:52:12 -0800 (PST) (envelope-from stolz@i2.informatik.rwth-aachen.de) Received: from menelaos.informatik.rwth-aachen.de (menelaos.Informatik.RWTH-Aachen.DE [137.226.194.73]) 8.11.1-0.5-michaelw-20030918) with ESMTP id hAU8qBe08666; Sun, 30 Nov 2003 09:52:11 +0100 Received: (from stolz@localhost)hAU8qBQV014932; Sun, 30 Nov 2003 09:52:11 +0100 (CET) (envelope-from stolz) Date: Sun, 30 Nov 2003 09:52:11 +0100 From: Volker Stolz To: Antti Louko Message-ID: <20031130085211.GA14925@i2.informatik.rwth-aachen.de> References: <20031130065310.29349.qmail@alo.louko.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031130065310.29349.qmail@alo.louko.com> X-PGP-Key: finger vs@foldr.org X-PGP-Id: 0x3FD1B6B5 User-Agent: Mutt/1.5.4i cc: hackers@freebsd.org Subject: Re: ipfw/ipf IP filtering thoughts X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Nov 2003 08:52:14 -0000 In local.freebsd-hackers, you wrote: > In ipchains and iptables you have a sequential list of rules, very > much like in ipfw and ipf, but you can have several different lists > which have symbolic names and you can make calls from lists to other > lists based on normal packet criteria. If the list is exchausted, the > scan returns to the previous list. You should be able to accomplish the same -- although in a more convoluted way -- with ipf[w]. You might want to use a higher-level tool though instead of writing all the rules by hand. Try using fwbuilder or code your own ab- straction which translates to ipfw rules. Volker -- http://www-i2.informatik.rwth-aachen.de/stolz/ *** PGP *** S/MIME rage against the finite state machine