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JSI Tip 3768. DHCP authorization may cause performance problems?

A Windows 2000 DHCP server verifies authorization status with the Active Directory when it is started, and approximately every 60 minutes. If the server fails, it retries every 5 minutes. This process can consume 1 megabyte of bandwidth. If you have many DHCP servers, the authorization process can cause a performance problem.

To resolve the issue:

1. Upgrade each DHCP Server to Windows 2000 SP2, which has been optimized to reduce the inefficiency in the authorization process.

2. Use Regedt32 to Add Value name RogueAuthorizationRecheckInterval, a REG_DWORD data type, at HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\DHCPServer\Parameters.

3. Change the minutes between authorizations from its' default 60 minutes to a number that yields acceptable performance.

NOTE: You can disable the Rogue Detection feature by setting DisableRogueDetection to 1.

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