DHCP servers can send vendor specific options to clients to granularly control configuration. Microsoft clients are out-of-the-box prepared to receive Microsoft Windows specific options while Microsoft DHCP servers have the ability to send DHCP options only received by Windows clients.
Some applications use the content of a DHCP option to receive configuration data, for example Microsoft Lync or RES Workspace Manager. Since this applications only run on Microsoft Windows its no more than logical to only send this option to Windows clients.
In this article I’ll explain how this mechanism works and how you can send Microsoft Windows specific DHCP options from a non-Microsoft DHCP server (like a Linux or Lucent-Alcatel VitalQIP appliance).