From owner-freebsd-questions Thu Mar 2 6:37:54 2000 Delivered-To: freebsd-questions@freebsd.org Received: from math.udel.edu (math.udel.edu [128.175.16.7]) by hub.freebsd.org (Postfix) with ESMTP id 6279137C034 for ; Thu, 2 Mar 2000 06:37:51 -0800 (PST) (envelope-from schwenk@math.udel.edu) Received: from math.udel.edu (sisyphus.math.udel.edu [128.175.16.167]) by math.udel.edu (8.9.3+Sun/8.9.1) with ESMTP id JAA05301; Thu, 2 Mar 2000 09:37:47 -0500 (EST) Message-ID: <38BE7CBB.DB028F3C@math.udel.edu> Date: Thu, 02 Mar 2000 09:37:47 -0500 From: Peter Schwenk Organization: University of Delaware X-Mailer: Mozilla 4.72 [en] (X11; U; SunOS 5.7 sun4u) X-Accept-Language: en, fr, de, ko MIME-Version: 1.0 To: arnee Cc: freebsd-questions@freebsd.org Subject: Re: ipfw & ipf, ppp & pppd, natd & ipnat... differences? References: <38BDCCF1.312F2D3B@geocities.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG These are how I understand these topics. I may be wrong. ppp filtering vs. ipfw/ipf: I you are using user ppp, then use it's filtering. If you are using kernel ppp, then use ipfw/ipf. bpf is the pseudo-device for using tcpdump and utilities like that. I don't know anything about ipnat. I use natd. ppp vs pppd: ppp is user ppp, which needs the tun device to work. pppd is used in conjunction with kernel ppp support. User ppp seems to be more featureful, but I would imagine that kernel ppp is better for full-time connections. tcp_wrappers vs. inetd -wW: tcp wrapping is built into inetd which precludes the need for the tcp wrappers program. arnee wrote: > this is some what of a broad question, but out of curiosity... what are > the differences between these programs? or rather, which one do you use? > which one do you prefer and why? or when to use one over the other? > > ppp's filtering vs ipfw, ipf? > what about bpf? > natd vs ipnat? > ppp vs pppd? > tcp wrapper vs identd -wW? > > which one would you use with what (e.g. ppp with ipnat or pppd with > ipf... etc.) or are they all interchangeable? > > comments, thoughts, ideas? or other programs used similar to the above? > > -- > arnee > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- PETER SCHWENK | Campus IT Associate 3 Department of Mathematical Sciences | University of Delaware schwenk@math.udel.edu | (302)831-0437 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message