This article explains how you can modify a registry entry to change the default interval for DHCP Database cleanup process.
DHCP Server must delete the "expired records" from its database (dhcp.mdb file) so that it releases space for new IP Addresses. By default, it does every 4 hours. You can modify this value by hacking the following registry entry:
- KEY Name: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DHCPServer
- Entry Name: DatabaseCleanupInterval
- Type: REG_DWORD
- Value: (in minutes), default is 4 hours.
About Nirmal Sharma
Nirmal is a Microsoft MVP in Directory Services and working as a Technical Architect/Consultant. He has been involved in Microsoft Technologies since 1994 and followed the progression of Microsoft Operating Systems and software. He is specialized in Directory Services, Microsoft Clustering, SQL, MOM, Exchange and Citrix. In his spare time, he likes to help others and write "internal" technical articles, white papers and tips on various Microsoft technologies. You can contact him at nirmal_sharma@mvps.org.
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