From owner-freebsd-questions@FreeBSD.ORG Sat Sep 1 21:30:34 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7C72016A421 for ; Sat, 1 Sep 2007 21:30:34 +0000 (UTC) (envelope-from peter@boosten.org) Received: from smtpq2.tilbu1.nb.home.nl (smtpq2.tilbu1.nb.home.nl [213.51.146.201]) by mx1.freebsd.org (Postfix) with ESMTP id 3025E13C46A for ; Sat, 1 Sep 2007 21:30:33 +0000 (UTC) (envelope-from peter@boosten.org) Received: from [213.51.146.189] (port=41505 helo=smtp2.tilbu1.nb.home.nl) by smtpq2.tilbu1.nb.home.nl with esmtp (Exim 4.30) id 1IRaY4-0007XS-HC; Sat, 01 Sep 2007 23:30:32 +0200 Received: from cp268254-a.landg1.lb.home.nl ([213.51.103.48]:4924 helo=ra.egypt.nl) by smtp2.tilbu1.nb.home.nl with esmtp (Exim 4.30) id 1IRaY2-0000tY-Me; Sat, 01 Sep 2007 23:30:30 +0200 Received: from ra.egypt.nl (localhost.egypt.nl [127.0.0.1]) by ra.egypt.nl (Postfix) with ESMTP id 0011B398B6; Sat, 1 Sep 2007 23:30:29 +0200 (CEST) Received: by ra.egypt.nl (Postfix, from userid 501) id A9A8F398AB; Sat, 1 Sep 2007 23:30:29 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on ra.egypt.nl X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=ALL_TRUSTED, AWL autolearn=ham version=3.2.3 Received: from [127.0.0.1] (xp.egypt.nl [192.168.13.35]) by ra.egypt.nl (Postfix) with ESMTP id BB80239885; Sat, 1 Sep 2007 23:30:27 +0200 (CEST) Message-ID: <46D9D9F3.3090306@boosten.org> Date: Sat, 01 Sep 2007 23:30:27 +0200 From: Peter Boosten User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.4) Gecko/20060516 Thunderbird/1.5.0.4 Mnenhy/0.7.4.666 MIME-Version: 1.0 To: Joe References: <620471.13542.qm@web34613.mail.mud.yahoo.com> In-Reply-To: <620471.13542.qm@web34613.mail.mud.yahoo.com> X-Enigmail-Version: 0.95.3 OpenPGP: url=http://www.boosten.org/content/view/49/47/ Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 000771-0, 09/01/2007), Outbound message X-Antivirus-Status: Clean X-Virus-Scanned: ClamAV using ClamSMTP X-AtHome-MailScanner-Information: Please contact support@home.nl for more information X-AtHome-MailScanner: Found to be clean Cc: FreeBSD Questioins Subject: Re: how to change isc-dhcp3-server replies? (was: isc-dhcp3-server issues with windows 2000 client) 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: Sat, 01 Sep 2007 21:30:34 -0000 Joe wrote: > Hello, after running tcpdump for a while I discoverd what is going on with my dhcpd server and why some clients are not able to get an IP address from it, in particular windows clients. It turns out it is not just win2k but any windows. > > It seems that the dhcpd server is replying to the subnet and not the broadcast net. So the reply that should be sent to 255.255.255.255:68 is sent to 192.168.0.255:68. Then, because the client has no IP address or has defaulted it to a 169.x.x.x(MS defaults) it does not seem to be getting the reply and thus never gets an address assigned. I have no problems running dhcp3 with windows clients at all... As far as I can tell the broadcast address of a subnet *never* is 255.255.255.255. Peter -- http://www.boosten.org