From owner-freebsd-questions Fri May 26 16:42:57 2000 Delivered-To: freebsd-questions@freebsd.org Received: from dt051n0b.san.rr.com (dt051n0b.san.rr.com [204.210.32.11]) by hub.freebsd.org (Postfix) with ESMTP id D88E737B95D for ; Fri, 26 May 2000 16:42:53 -0700 (PDT) (envelope-from DougB@gorean.org) Received: from gorean.org (doug@master [10.0.0.2]) by dt051n0b.san.rr.com (8.9.3/8.9.3) with ESMTP id QAA82581; Fri, 26 May 2000 16:42:46 -0700 (PDT) (envelope-from DougB@gorean.org) Message-ID: <392F0BF5.A87C26E6@gorean.org> Date: Fri, 26 May 2000 16:42:45 -0700 From: Doug Barton Organization: Triborough Bridge & Tunnel Authority X-Mailer: Mozilla 4.72 [en] (X11; U; FreeBSD 5.0-CURRENT-0523 i386) X-Accept-Language: en MIME-Version: 1.0 To: Andy Dills Cc: Jan Grant , freebsd-questions@FreeBSD.ORG Subject: Re: promiscuous ethernet References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Andy Dills wrote: > I'm writing a perl script which calls "tcpdump -n -q arp", and monitors > output. When it (the script) sees a line such as: > > arp who-has () tell > > it will ifconfig as an alias to xl0. NAT, which will be > run with -dynamic, will then begin address translation for the user. > > I'll redirect any and all DNS requests to the local DNS server. > > So, I belive I've at least accomplished the theory behind it. Can anybody > point out a flaw? Given the constraints of your project I think I'd probably approach it the same way (although don't take that as gospel). I do understand what you mean by "technically unfeasable" not being an acceptable answer. :) As an aside, if you are dealing with all in-office stuff, I would suggest setting up the DHCP server anyway, and converting all NEW installations to that. Then at some point in the future the number of legacy installs will be small enough that you can simply go around and fix them. Doug -- "Live free or die" - State motto of my ancestral homeland, New Hampshire Do YOU Yahoo!? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message