From owner-freebsd-questions@FreeBSD.ORG Tue Jun 14 18:28:28 2011 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 72EFE106564A for ; Tue, 14 Jun 2011 18:28:28 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from asmtpout019.mac.com (asmtpout019.mac.com [17.148.16.94]) by mx1.freebsd.org (Postfix) with ESMTP id 5BF408FC14 for ; Tue, 14 Jun 2011 18:28:28 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; CHARSET=US-ASCII Received: from cswiger1.apple.com ([17.209.4.71]) by asmtp019.mac.com (Oracle Communications Messaging Exchange Server 7u4-20.01 64bit (built Nov 21 2010)) with ESMTPSA id <0LMS00B0ZLYOL890@asmtp019.mac.com> for freebsd-questions@freebsd.org; Tue, 14 Jun 2011 11:28:01 -0700 (PDT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.4.6813,1.0.148,0.0.0000 definitions=2011-06-14_08:2011-06-14, 2011-06-14, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=1 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=6.0.2-1012030000 definitions=main-1106140138 From: Chuck Swiger In-reply-to: <20110614181902.2502A1065676@hub.freebsd.org> Date: Tue, 14 Jun 2011 11:28:00 -0700 Message-id: <48D68EC6-DD36-46BD-9E71-B94DE7A1ACF1@mac.com> References: <20110614181902.2502A1065676@hub.freebsd.org> To: jhall@socket.net X-Mailer: Apple Mail (2.1084) Cc: freebsd-questions@freebsd.org 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: Tue, 14 Jun 2011 18:28:28 -0000 On Jun 14, 2011, at 11:19 AM, jhall@socket.net wrote: > I am working with a vendor and they are wanting me to send them ip > addresses via option 74 in DHCP (irc-server). After I defined this in my > dhcpd.conf file, the option is still not being sent. However, I am not > receiving a request for this option. I'm not sure why someone would care about setting an IRC server via DHCPd, but I won't second-guess the requirement. > I have done a bunch of Googling this morning/afternoon, and have not been > able to find a way to send the option whether it is requested or not. You want: option dhcp-parameter-request-list uint16; This option, when sent by the client, specifies which options the client wishes the server to return. Normally, in the ISC DHCP client, this is done using the request statement. If this option is not specified by the client, the DHCP server will normally return every option that is valid in scope and that fits into the reply. When this option is specified on the server, the server returns the specified options. This can be used to force a client to take options that it hasn't requested, and it can also be used to tailor the response of the DHCP server for clients that may need a more lim- ited set of options than those the server would normally return. Regards, -- -Chuck