How to export and import DHCP database

Note: be careful, when backup/restore DHCP. Remove the failover configuration on source DHCP before to perform a backup.

http://westontech.org/backup-and-restore-dhcp-with-failover-configuration-server-2012/

Try netsh dhcp export / import => this old method will not backup the FAILOVER settings. So it will help in your case to restore only the scopes.

 

jacques

A) Using the netsh command (OLD method):

To backup:
netsh dhcp server export d:\dhcpbackup\BackupFile.txt all

To restore:
Performing this task will create a file in the d:\dhcpbackup folder
Copy this file to the computer running Windows Server 2016 that will function as the new DHCP server.
You’ll need to install the DHCP server role on this computer and authorize the DHCP server in Active Directory before performing the following actions.
Open an elevated command prompt and run the following commands (this assumes you’ve copied the file to a folder named d:\dhcpbackup\)

Net stop DHCPserver
Del c:\windows\system32\DHCP\DHCP.mdb
Net start DHCPserver
Netsh dhcp server import d:\dhcpbackup\backupfile.txt
Exit
Net stop DHCPserver
Net start DHCPserver

B) Else using powershell (Recommended):

To backup:
https://docs.microsoft.com/en-us/powershell/module/dhcpserver/export-dhcpserver?view=win10-ps

To restore:
https://docs.microsoft.com/en-us/powershell/module/dhcpserver/import-dhcpserver?view=win10-ps

Advertisements