DOCUMENT:Q166149 09-AUG-2001 [winnt] TITLE :PRB: RAS Reserves DHCP Addresses for Dial-Out Only Clients PRODUCT :Microsoft Windows NT PROD/VER::4.0 OPER/SYS: KEYWORDS:kbsetup kbOPK kbSBK ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation version 4.0 - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Microsoft Windows NT systems send out requests to DHCP to reserve addresses for RAS, but the systems that are sending the requests are setup for Dial-out only. In some cases, this is noticed by DHCP servers running out of leases completely. To prevent the unattended setup computers from experiencing the problem of grabbing DHCP addresses, add the following to your unattended setup file: [RemoteAccess] PortSections=RASDialOut DialoutProtocols=ALL ; Prevent the server componant from requesting an IP address. UseDHCP=No StaticAddressBegin=1.1.1.1 StaticAddressEnd=1.1.1.1 ClientCanRequestIPAddress=No Currently, the only solution for computers already affected by this problem is to manually run through the configuration options for Remote Access via Control Panel and enable the system to update. NOTE: The Dial-out options should be configured as expected based on the unattended answer file, so there is no need to change any of the parameters. CAUSE ===== Windows NT unattended setup provides the ability to install and configure Remote Access for Dial-in, Dial-out, or Dial in and out. If the unattend answer file is configured to install Remote Access as a Dial-out client only, server components and registry values are installed that should not be. Properties of the Remote Access Service are checked in the Control Panel Network Services tab. All options are displayed as configured correctly for Dial-out Only. Upon exiting the configuration menu for Remote Access, the system can reset the bindings and update the registry. Once the updates are complete, a prompt is displayed, asking that the system be restarted. After the restart, everything is installed correctly and the server side of Remote Access has been removed. NOTE: The affected computers cannot act as RAS servers. They can only grab DHCP addresses. STATUS ====== Microsoft has confirmed this to be a problem in Windows NT Server and Workstation version 4.0. MORE INFORMATION ================ The following is an example of the Modem and Network sections of an Unattend.txt file that installs the extra components of RAS as described in the Cause section: [Modem] InstallModem = ModemParameters [ModemParameters] COM2 = "Hayes V-Series Ultra Smartmodem 9600" [Network] DetectAdapters = "" InstallProtocols = ProtocolsSection InstallServices = ServicesSection JoinDomain = BOBSDOMAIN CreateComputerAccount = ADMINISTRATOR [ProtocolsSection] NBF = NBFParamSection NWLNKIPX = NWLNKIPXParamSection TC = TCParamSection [NBFParamSection] [NWLNKIPXParamSection] [TCParamSection] DHCP = yes [ServicesSection] RAS = RASParamSection [RASParamSection] PortSections = PortSection1 DialoutProtocols = ALL [PortSection1] PortName = COM2 DeviceType = Modem PortUsage = DialOut For the latest information on Windows NT deployment, download the Windows NT 4.0 Deployment Guide from the following location: http://www.microsoft.com/ntworkstation/ For additional information, please see the following article in the Microsoft Knowledge Base: Q155197 Unattended Setup Parameters for Unattend.txt File Additional query words: prodnt rip ipx nwlink sap agent Unattended Setup ====================================================================== Keywords : kbsetup kbOPK kbSBK Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : :4.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.