Running DHCPUTIL.exe to update DHCP option 120 for Lync 2013

By |2017-12-08T16:22:22+00:00February 15th, 2013|Skype|0 Comments

After migration to Lync 2013 internally, we needed to move over the DHCP scope options for our new instance to assign IP’s to our common area phone devices. To do so we use DHCPUTIL.exe, this can be found at C:Program FilesCommon FilesMicrosoft Lync Server 2013 to complete the move you will need not only DHCPUTIL.exe and the DHCPConfigScript.bat files that are located here copied onto the DHCP server.


On the DHCP server, open an elevated command prompt and type ‘DHCPUtil.exe –sipserver FQDNOfSipServer –runconfigscript “DHCPConfigScript


This will run through, and once completed you can check in ‘Scope Options’ on the DHCP server to ensure that this has changed to the FQDN of your new Lync 2013 server.

A reboot of your Lync phones will need to be completed to pick up an IP from the new configuration.

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