How to Enable the DHCP Logging Feature in Windows NT 4.0 SP 2

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To enable this feature, perform the following steps:

1. Go to DHCP Manager.
2. Select the DHCP server that you want to enable logging on.
3. On the Server menu, click Properties.
4. Click to select the Enable DHCP Logging check box.

The path to the log file is Windir%\System32\Dhcp\Dhcpsrv.log. When the activity log feature is enabled, this file will be kept open by DHCP server while the server is running. To delete the activity log file, you must first stop the DHCP Server service by typing the following at a command prompt: If available disk space becomes low, the activity log will pause until sufficient disk space becomes available to continue.

You must also stop and restart the DHCP Service after enabling or disabling Logging, Superscopes, or DHCP Decline support.