From owner-freebsd-questions@FreeBSD.ORG Thu Aug 24 21:06:12 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 405D416A4E9 for ; Thu, 24 Aug 2006 21:06:12 +0000 (UTC) (envelope-from roberthuff@rcn.com) Received: from smtp02.lnh.mail.rcn.net (smtp02.lnh.mail.rcn.net [207.172.157.102]) by mx1.FreeBSD.org (Postfix) with ESMTP id A307A43D97 for ; Thu, 24 Aug 2006 21:05:55 +0000 (GMT) (envelope-from roberthuff@rcn.com) Received: from mr08.lnh.mail.rcn.net ([207.172.157.28]) by smtp02.lnh.mail.rcn.net with ESMTP; 24 Aug 2006 17:05:54 -0400 X-IronPort-AV: i="4.08,165,1154923200"; d="scan'208"; a="286078160:sNHT23438456" Received: from smtp01.lnh.mail.rcn.net (smtp01.lnh.mail.rcn.net [207.172.4.11]) by mr08.lnh.mail.rcn.net (MOS 3.7.5a-GA) with ESMTP id GTP55765; Thu, 24 Aug 2006 17:05:51 -0400 (EDT) Received: from 65-78-24-149.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com (HELO jerusalem.litteratus.org.litteratus.org) ([65.78.24.149]) by smtp01.lnh.mail.rcn.net with ESMTP; 24 Aug 2006 17:05:51 -0400 From: Robert Huff MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17646.5176.759355.437455@jerusalem.litteratus.org> Date: Thu, 24 Aug 2006 17:03:52 -0400 To: In-Reply-To: References: <20060823112010.FWCA15709.dukecmmtao03.coxmail.com@dukecmmtao0 3> X-Mailer: VM 7.17 under 21.5 (beta27) "fiddleheads" XEmacs Lucid X-Junkmail-Status: score=10/50, host=mr08.lnh.mail.rcn.net X-Junkmail-SD-Raw: score=unknown, refid=str=0001.0A090204.44EE1397.011F,ss=1,fgs=0, ip=207.172.4.11, so=2006-05-09 23:27:51, dmn=5.2.4/2006-05-04 Subject: Re: DHCP question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Aug 2006 21:06:12 -0000 Walt Pawley writes: > >I need to monitor and record that IP address and initiate a > >series of processes if/when the IP address changes. > > You could schedule a script that uses 'curl' or 'fetch' to > acquire the status page from the router and parse the upstream > IP address from it and compare it with a saved address. How about: netstat -rn -f inet | grep default | awk '{print $2}' Robert Huff