DOCUMENT:Q186341 09-AUG-2001 [winnt] TITLE :Superscoping vs. Supernetting PRODUCT :Microsoft Windows NT PROD/VER:WinNT:4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- SUMMARY ======= This article briefly explains the differences between superscopes and supernetting and gives examples of when to use each. MORE INFORMATION ================ DHCP Superscoping is used when you need to assign non-supernetted or non- consecutive IP address subnets to the same physical segment. For example, if you needed to assign 199.1.1.x and 201.2.2.x addresses to the same physical network, you could use superscopes or if you needed to assign 199.1.0.x and 199.1.1.x and did not want to change the subnet mask to support supernetting. For more information, please see the following Microsoft Knowledge Base article: ARTICLE-ID: Q161571 TITLE : Using DHCP "Superscopes" to Serve Multiple Logical Subnets Supernetting is used when multiple, consecutive network addresses of the same Class are combined into blocks. For example, if you need to assign 199.1.1.x and 199.1.2.x to the same physical network and want to change subnet mask. You would use the subnet mask of 255.255.254.0 and NOT use DHCP superscopes to assign addresses from DHCP server. Additional query words: supernet superscope ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : WinNT: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.