DOCUMENT:Q153072 08-AUG-2001 [winnt] TITLE :Leases Retained in DHCP Database For One Day After Expiration PRODUCT :Microsoft Windows NT PROD/VER:3.5 3.51 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server versions 3.5, 3.51, 4.0 ------------------------------------------------------------------------------- SUMMARY ======= When a DHCP client IP address lease expires, the lease is retained in the DHCP server database for approximately one day after the expiration. MORE INFORMATION ================ This grace period protects a client's lease if the client is in a time zone different from the DHCP server and the two computers' clocks are not synchronized. The grace period also allows for the situation where the client computer was not on the network at the time the lease expired. The expired leases are included in the aggregate Active/Excluded count and in the list of active clients in the Active Leases dialog box. They are distinguished by a dimmed icon. Additional query words: tcp/ip tcp dhcp ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search Version : 3.5 3.51 ============================================================================= 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.