DOCUMENT:Q200776 10-AUG-2001 [winnt] TITLE :OS/2 DHCP Clients Fail to Get Name Resolution or Communicate PRODUCT :Microsoft Windows NT PROD/VER:winnt:3.51,4.0 OPER/SYS: KEYWORDS:kb3rdparty kbenv kbnetwork kbsetup ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server versions 3.51, 4.0 ------------------------------------------------------------------------------- SUMMARY ======= An OS/2 Warp DHCP client may fail to get options such as Default Router (3) or Name Server (6/44), and so on, from a Windows NT DHCP Server. However, it has no such problems if a lease is granted from a OS/2 Warp DHCP Server. MORE INFORMATION ================ A trace indicates that the OS/2 DHCP client does not request DHCP options from the DHCP server. It is neccessary for DHCP clients to request the options they want to obtain. OS/2 DHCP clients, by default, request no DHCP options. To force OS/2 clients to request specific options, edit the Dhcpcd.cfg client file. When the DHCP client builds a DISCOVER or REQUEST, packet it reads the options listed in this file. To direct the client to send its reguested options to a Windows NT DHCP server, remove the remark sign in the lines for Default Router, Name Server, and so on, and remove the "exec" statement behind the options, which is only valid for OS/2-based DHCP servers. According to RFC, if a DHCP client has not asked for options, a DHCP server should not send any. Windows NT DHCP server follows the RFC. Additional query words: dhcp options default router name server resolution OS/2 Warp dhcpcd.cfg ====================================================================== Keywords : kb3rdparty kbenv kbnetwork kbsetup Technology : kbWinNTsearch kbWinNT351search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS351search Version : winnt:3.51,4.0 Issue type : kbinfo ============================================================================= 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.