by Stefan Hellman
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DHCP Redundancy
for Windows Server 2003

Instructions how to do a upgrade to version 1.17 from an older installation
if you want to do a new installation of DHCP redundancy, read the Installation instructions.


Upgrade
.Net-framework v.2.0 or higher must be installed on the second server.
DHCP-Redundancy v1.17 can only be installed on English or Swedish version of 2003 Server

1. Download DHCP-Redanducy.zip with the link at the top of this page.

2. IMPORTANT! Do not unzip and overwrite the old files with the new ones yet.

3. If you want to keep the current settings, rename the file DHCP-Redundandy.ini on the second server to DHCP-Redundandy.ini.old

4. Uninstall the current redundancy service on the second server with the .Net command InstallUtil.exe, syntax eg. C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe /u c:\DHCP-Redundancy\DHCP-Redundancy-service.exe.

5. Unzip the new version and overwrite the old onces.

6. If you renamed the old settingsfile, delete the new DHCP-Redundancy.ini file and rename the old one back.

7. Run the program DHCP-Redundancy-config.exe.

8. Do any necessary settings.

9. Click Save to save the settings to DHCP-Backup.ini and exit the program.

10. Install the redundancy service on the second server with the .Net command InstallUtil.exe, syntax eg. C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe c:\DHCP-Redundancy\DHCP-Redundancy-service.exe.

11. Open Computer Management, the service DHCP-Redundancy should have been created. Click on it and choose Run to start it.

Now check that everything works as it should. On the main DHCP server, open Computer management and stop the DHCP service, within one minute the second DHCP service should start and the alert receivers should receive an alert email. You should be able to renew the ip address on your clients, now provided by the second server. Now start the main DHCP service and within one minute the second service should stop.

Direct questions and tell us your experience about DHCP Redundancy service at DHCP Redundancy Forum at the top of this page.